iotjava/iotpolicy/IoTCompiler.java

   1 package iotpolicy;
   2
   3 import java_cup.runtime.ComplexSymbolFactory;
   4 import java_cup.runtime.ScannerBuffer;
   5 import java.io.*;
   6 import java.util.Arrays;
   7 import java.util.ArrayList;
   8 import java.util.Collection;
   9 import java.util.Collections;
  10 import java.util.HashMap;
  11 import java.util.HashSet;
  12 import java.util.Iterator;
  13 import java.util.List;
  14 import java.util.Map;
  15 import java.util.Set;
  16
  17 import iotpolicy.parser.Lexer;
  18 import iotpolicy.parser.Parser;
  19 import iotpolicy.tree.ParseNode;
  20 import iotpolicy.tree.ParseNodeVector;
  21 import iotpolicy.tree.ParseTreeHandler;
  22 import iotpolicy.tree.Declaration;
  23 import iotpolicy.tree.DeclarationHandler;
  24 import iotpolicy.tree.CapabilityDecl;
  25 import iotpolicy.tree.InterfaceDecl;
  26 import iotpolicy.tree.RequiresDecl;
  27 import iotpolicy.tree.EnumDecl;
  28 import iotpolicy.tree.StructDecl;
  29
  30 import iotrmi.Java.IoTRMITypes;
  31
  32
  33 /** Class IoTCompiler is the main interface/stub compiler for
  34  *  files generation. This class calls helper classes
  35  *  such as Parser, Lexer, InterfaceDecl, CapabilityDecl,
  36  *  RequiresDecl, ParseTreeHandler, etc.
  37  *
  38  * @author      Rahmadi Trimananda <rahmadi.trimananda @ uci.edu>
  39  * @version     1.0
  40  * @since       2016-09-22
  41  */
  42 public class IoTCompiler {
  43
  44         /**
  45          * Class properties
  46          */
  47         // Maps multiple interfaces to multiple objects of ParseTreeHandler
  48         private Map<String,ParseTreeHandler> mapIntfacePTH;
  49         private Map<String,DeclarationHandler> mapIntDeclHand;
  50         private Map<String,Map<String,Set<String>>> mapInt2NewInts;
  51         private Map<String,String> mapInt2NewIntName;
  52         private Map<String,String> mapInt2Drv;
  53         // Data structure to store our types (primitives and non-primitives) for compilation
  54         private Map<String,String> mapPrimitives;
  55         private Map<String,String> mapNonPrimitivesJava;
  56         private Map<String,String> mapNonPrimitivesCplus;
  57         // Other data structures
  58         private Map<String,Integer> mapIntfaceObjId;            // Maps interface name to object Id
  59         private Map<String,Integer> mapNewIntfaceObjId;         // Maps new interface name to its object Id (keep track of stubs)
  60         private PrintWriter pw;
  61         private String dir;
  62         private String subdir;
  63         private Map<String,Integer> mapPortCount;       // Counter for ports
  64         private static int portCount = 0;
  65         private static int countObjId = 1;                      // Always increment object Id for a new stub/skeleton
  66         private String mainClass;
  67         private String controllerClass;
  68
  69
  70         /**
  71          * Class constants
  72          */
  73         private final static String OUTPUT_DIRECTORY = "output_files";
  74         private final static String CODE_PREFIX = "iotcode";
  75         private final static String INTERFACE_PACKAGE = "iotcode.interfaces";
  76
  77
  78         private enum ParamCategory {
  79
  80                 PRIMITIVES,             // All the primitive types, e.g. byte, short, int, long, etc.
  81                 NONPRIMITIVES,  // Non-primitive types, e.g. Set, Map, List, etc.
  82                 ENUM,                   // Enum type
  83                 STRUCT,                 // Struct type
  84                 USERDEFINED             // Assumed as driver classes
  85         }
  86
  87
  88         /**
  89          * Class constructors
  90          */
  91         public IoTCompiler() {
  92
  93                 mapIntfacePTH = new HashMap<String,ParseTreeHandler>();
  94                 mapIntDeclHand = new HashMap<String,DeclarationHandler>();
  95                 mapInt2NewInts = new HashMap<String,Map<String,Set<String>>>();
  96                 mapInt2NewIntName = new HashMap<String,String>();
  97                 mapInt2Drv = new HashMap<String,String>();
  98                 mapIntfaceObjId = new HashMap<String,Integer>();
  99                 mapNewIntfaceObjId = new HashMap<String,Integer>();
 100                 mapPrimitives = new HashMap<String,String>();
 101                         arraysToMap(mapPrimitives, IoTRMITypes.primitivesJava, IoTRMITypes.primitivesCplus);
 102                 mapNonPrimitivesJava = new HashMap<String,String>();
 103                         arraysToMap(mapNonPrimitivesJava, IoTRMITypes.nonPrimitivesJava, IoTRMITypes.nonPrimitiveJavaLibs);
 104                 mapNonPrimitivesCplus = new HashMap<String,String>();
 105                         arraysToMap(mapNonPrimitivesCplus, IoTRMITypes.nonPrimitivesJava, IoTRMITypes.nonPrimitivesCplus);
 106                 mapPortCount = new HashMap<String,Integer>();
 107                 pw = null;
 108                 dir = OUTPUT_DIRECTORY;
 109                 subdir = null;
 110                 mainClass = null;
 111                 controllerClass = null;
 112         }
 113
 114
 115         /**
 116          * setDriverClass() sets the name of the driver class.
 117          */
 118         public void setDriverClass(String _driverClass, String _intface) {
 119
 120                 mapInt2Drv.put(_driverClass, _intface);
 121         }
 122
 123         /**
 124          * getDriverClass() sets the name of the driver class.
 125          */
 126         public String getDriverClass(String _intface) {
 127
 128                 return mapInt2Drv.get(_intface);
 129         }
 130
 131
 132         /**
 133          * setControllerClass() sets the name of the controller class.
 134          */
 135         public void setControllerClass(String _controllerClass) {
 136
 137                 controllerClass = _controllerClass;
 138         }
 139
 140
 141         /**
 142          * setDataStructures() sets parse tree and other data structures based on policy files.
 143          * <p>
 144          * It also generates parse tree (ParseTreeHandler) and
 145          * copies useful information from parse tree into
 146          * InterfaceDecl, CapabilityDecl, and RequiresDecl
 147          * data structures.
 148          * Additionally, the data structure handles are
 149          * returned from tree-parsing for further process.
 150          */
 151         public void setDataStructures(String origInt, ParseNode pnPol, ParseNode pnReq) {
 152
 153                 ParseTreeHandler ptHandler = new ParseTreeHandler(origInt, pnPol, pnReq);
 154                 DeclarationHandler decHandler = new DeclarationHandler();
 155                 // Process ParseNode and generate Declaration objects
 156                 // Interface
 157                 ptHandler.processInterfaceDecl();
 158                 InterfaceDecl intDecl = ptHandler.getInterfaceDecl();
 159                 decHandler.addInterfaceDecl(origInt, intDecl);
 160                 // Capabilities
 161                 ptHandler.processCapabilityDecl();
 162                 CapabilityDecl capDecl = ptHandler.getCapabilityDecl();
 163                 decHandler.addCapabilityDecl(origInt, capDecl);
 164                 // Requires
 165                 ptHandler.processRequiresDecl();
 166                 RequiresDecl reqDecl = ptHandler.getRequiresDecl();
 167                 decHandler.addRequiresDecl(origInt, reqDecl);
 168                 // Enumeration
 169                 ptHandler.processEnumDecl();
 170                 EnumDecl enumDecl = ptHandler.getEnumDecl();
 171                 decHandler.addEnumDecl(origInt, enumDecl);
 172                 // Struct
 173                 ptHandler.processStructDecl();
 174                 StructDecl structDecl = ptHandler.getStructDecl();
 175                 decHandler.addStructDecl(origInt, structDecl);
 176
 177                 mapIntfacePTH.put(origInt, ptHandler);
 178                 mapIntDeclHand.put(origInt, decHandler);
 179                 // Set object Id counter to 0 for each interface
 180                 mapIntfaceObjId.put(origInt, countObjId++);
 181         }
 182
 183
 184         /**
 185          * getMethodsForIntface() reads for methods in the data structure
 186          * <p>
 187          * It is going to give list of methods for a certain interface
 188          *              based on the declaration of capabilities.
 189          */
 190         public void getMethodsForIntface(String origInt) {
 191
 192                 ParseTreeHandler ptHandler = mapIntfacePTH.get(origInt);
 193                 Map<String,Set<String>> mapNewIntMethods = new HashMap<String,Set<String>>();
 194                 // Get set of new interfaces, e.g. CameraWithCaptureAndData
 195                 // Generate this new interface with all the methods it needs
 196                 //              from different capabilities it declares
 197                 DeclarationHandler decHandler = mapIntDeclHand.get(origInt);
 198                 RequiresDecl reqDecl = (RequiresDecl) decHandler.getRequiresDecl(origInt);
 199                 Set<String> setIntfaces = reqDecl.getInterfaces();
 200                 for (String strInt : setIntfaces) {
 201
 202                         // Initialize a set of methods
 203                         Set<String> setMethods = new HashSet<String>();
 204                         // Get list of capabilities, e.g. ImageCapture, VideoRecording, etc.
 205                         List<String> listCapab = reqDecl.getCapabList(strInt);
 206                         for (String strCap : listCapab) {
 207
 208                                 // Get list of methods for each capability
 209                                 CapabilityDecl capDecl = (CapabilityDecl) decHandler.getCapabilityDecl(origInt);
 210                                 List<String> listCapabMeth = capDecl.getMethods(strCap);
 211                                 for (String strMeth : listCapabMeth) {
 212
 213                                         // Add methods into setMethods
 214                                         // This is to also handle redundancies (say two capabilities
 215                                         //              share the same methods)
 216                                         setMethods.add(strMeth);
 217                                 }
 218                         }
 219                         // Add interface and methods information into map
 220                         mapNewIntMethods.put(strInt, setMethods);
 221                         // Map new interface method name to the original interface
 222                         // TODO: perhaps need to check in the future if we have more than 1 stub interface for one original interface
 223                         mapInt2NewIntName.put(origInt, strInt);
 224                         if (mainClass == null)  // Take the first class as the main class (whichever is placed first in the order of compilation files)
 225                                 mainClass = origInt;
 226                 }
 227                 // Map the map of interface-methods to the original interface
 228                 mapInt2NewInts.put(origInt, mapNewIntMethods);
 229         }
 230
 231
 232 /*================
 233  * Java generation
 234  *================/
 235
 236         /**
 237          * HELPER: writeMethodJavaLocalInterface() writes the method of the local interface
 238          */
 239         private void writeMethodJavaLocalInterface(Collection<String> methods, InterfaceDecl intDecl) {
 240
 241                 for (String method : methods) {
 242
 243                         List<String> methParams = intDecl.getMethodParams(method);
 244                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
 245                         print("public " + intDecl.getMethodType(method) + " " +
 246                                 intDecl.getMethodId(method) + "(");
 247                         for (int i = 0; i < methParams.size(); i++) {
 248                                 // Check for params with driver class types and exchange it
 249                                 //              with its remote interface
 250                                 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
 251                                 print(paramType + " " + methParams.get(i));
 252                                 // Check if this is the last element (don't print a comma)
 253                                 if (i != methParams.size() - 1) {
 254                                         print(", ");
 255                                 }
 256                         }
 257                         println(");");
 258                 }
 259         }
 260
 261
 262         /**
 263          * HELPER: writeMethodJavaInterface() writes the method of the interface
 264          */
 265         private void writeMethodJavaInterface(Collection<String> methods, InterfaceDecl intDecl) {
 266
 267                 for (String method : methods) {
 268
 269                         List<String> methParams = intDecl.getMethodParams(method);
 270                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
 271                         print("public " + intDecl.getMethodType(method) + " " +
 272                                 intDecl.getMethodId(method) + "(");
 273                         for (int i = 0; i < methParams.size(); i++) {
 274                                 // Check for params with driver class types and exchange it
 275                                 //              with its remote interface
 276                                 String paramType = methPrmTypes.get(i);
 277                                 print(paramType + " " + methParams.get(i));
 278                                 // Check if this is the last element (don't print a comma)
 279                                 if (i != methParams.size() - 1) {
 280                                         print(", ");
 281                                 }
 282                         }
 283                         println(");");
 284                 }
 285         }
 286
 287
 288         /**
 289          * HELPER: generateEnumJava() writes the enumeration declaration
 290          */
 291         private void generateEnumJava() throws IOException {
 292
 293                 // Create a new directory
 294                 createDirectory(dir);
 295                 for (String intface : mapIntfacePTH.keySet()) {
 296                         // Get the right EnumDecl
 297                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
 298                         EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
 299                         Set<String> enumTypes = enumDecl.getEnumDeclarations();
 300                         // Iterate over enum declarations
 301                         for (String enType : enumTypes) {
 302                                 // Open a new file to write into
 303                                 FileWriter fw = new FileWriter(dir + "/" + enType + ".java");
 304                                 pw = new PrintWriter(new BufferedWriter(fw));
 305                                 println("public enum " + enType + " {");
 306                                 List<String> enumMembers = enumDecl.getMembers(enType);
 307                                 for (int i = 0; i < enumMembers.size(); i++) {
 308
 309                                         String member = enumMembers.get(i);
 310                                         print(member);
 311                                         // Check if this is the last element (don't print a comma)
 312                                         if (i != enumMembers.size() - 1)
 313                                                 println(",");
 314                                         else
 315                                                 println("");
 316                                 }
 317                                 println("}\n");
 318                                 pw.close();
 319                                 System.out.println("IoTCompiler: Generated enum class " + enType + ".java...");
 320                         }
 321                 }
 322         }
 323
 324
 325         /**
 326          * HELPER: generateStructJava() writes the struct declaration
 327          */
 328         private void generateStructJava() throws IOException {
 329
 330                 // Create a new directory
 331                 createDirectory(dir);
 332                 for (String intface : mapIntfacePTH.keySet()) {
 333                         // Get the right StructDecl
 334                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
 335                         StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
 336                         List<String> structTypes = structDecl.getStructTypes();
 337                         // Iterate over enum declarations
 338                         for (String stType : structTypes) {
 339                                 // Open a new file to write into
 340                                 FileWriter fw = new FileWriter(dir + "/" + stType + ".java");
 341                                 pw = new PrintWriter(new BufferedWriter(fw));
 342                                 println("public class " + stType + " {");
 343                                 List<String> structMemberTypes = structDecl.getMemberTypes(stType);
 344                                 List<String> structMembers = structDecl.getMembers(stType);
 345                                 for (int i = 0; i < structMembers.size(); i++) {
 346
 347                                         String memberType = structMemberTypes.get(i);
 348                                         String member = structMembers.get(i);
 349                                         println("public static " + memberType + " " + member + ";");
 350                                 }
 351                                 println("}\n");
 352                                 pw.close();
 353                                 System.out.println("IoTCompiler: Generated struct class " + stType + ".java...");
 354                         }
 355                 }
 356         }
 357
 358
 359         /**
 360          * generateJavaLocalInterface() writes the local interface and provides type-checking.
 361          * <p>
 362          * It needs to rewrite and exchange USERDEFINED types in input parameters of stub
 363          * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording.
 364          * The local interface has to be the input parameter for the stub and the stub
 365          * interface has to be the input parameter for the local class.
 366          */
 367         public void generateJavaLocalInterfaces() throws IOException {
 368
 369                 // Create a new directory
 370                 createDirectory(dir);
 371                 for (String intface : mapIntfacePTH.keySet()) {
 372                         // Open a new file to write into
 373                         FileWriter fw = new FileWriter(dir + "/" + intface + ".java");
 374                         pw = new PrintWriter(new BufferedWriter(fw));
 375                         // Pass in set of methods and get import classes
 376                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
 377                         InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
 378                         List<String> methods = intDecl.getMethods();
 379                         Set<String> importClasses = getImportClasses(methods, intDecl);
 380                         List<String> stdImportClasses = getStandardJavaIntfaceImportClasses();
 381                         List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
 382                         println("package " + INTERFACE_PACKAGE + ";\n");
 383                         printImportStatements(allImportClasses);
 384                         // Write interface header
 385                         println("");
 386                         println("public interface " + intface + " {");
 387                         // Write methods
 388                         writeMethodJavaLocalInterface(methods, intDecl);
 389                         println("}");
 390                         pw.close();
 391                         System.out.println("IoTCompiler: Generated local interface " + intface + ".java...");
 392                 }
 393         }
 394
 395
 396         /**
 397          * HELPER: updateIntfaceObjIdMap() updates the mapping between new interface and object Id
 398          */
 399         private void updateIntfaceObjIdMap(String intface, String newIntface) {
 400
 401                 // We are assuming that we only generate one stub per one skeleton at this point @Feb 2017
 402                 Integer objId = mapIntfaceObjId.get(intface);
 403                 mapNewIntfaceObjId.put(newIntface, objId);
 404         }
 405
 406
 407         /**
 408          * generateJavaInterfaces() generate stub interfaces based on the methods list in Java
 409          */
 410         public void generateJavaInterfaces() throws IOException {
 411
 412                 // Create a new directory
 413                 String path = createDirectories(dir, subdir);
 414                 for (String intface : mapIntfacePTH.keySet()) {
 415
 416                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
 417                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
 418
 419                                 // Open a new file to write into
 420                                 String newIntface = intMeth.getKey();
 421                                 FileWriter fw = new FileWriter(path + "/" + newIntface + ".java");
 422                                 pw = new PrintWriter(new BufferedWriter(fw));
 423                                 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
 424                                 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
 425                                 // Pass in set of methods and get import classes
 426                                 Set<String> methods = intMeth.getValue();
 427                                 Set<String> importClasses = getImportClasses(methods, intDecl);
 428                                 List<String> stdImportClasses = getStandardJavaIntfaceImportClasses();
 429                                 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
 430                         println("package " + INTERFACE_PACKAGE + ";\n");
 431                                 printImportStatements(allImportClasses);
 432                                 // Write interface header
 433                                 println("");
 434                                 println("public interface " + newIntface + " {\n");
 435                                 updateIntfaceObjIdMap(intface, newIntface);
 436                                 // Write methods
 437                                 writeMethodJavaInterface(methods, intDecl);
 438                                 println("}");
 439                                 pw.close();
 440                                 System.out.println("IoTCompiler: Generated interface " + newIntface + ".java...");
 441                         }
 442                 }
 443         }
 444
 445
 446         /**
 447          * HELPER: writePropertiesJavaPermission() writes the permission in properties
 448          */
 449         private void writePropertiesJavaPermission(String intface, InterfaceDecl intDecl) {
 450
 451                 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
 452                 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
 453                         String newIntface = intMeth.getKey();
 454                         int newObjectId = getNewIntfaceObjectId(newIntface);
 455                         Set<String> methodIds = intMeth.getValue();
 456                         print("private static Integer[] object" + newObjectId + "Permission = { ");
 457                         int i = 0;
 458                         for (String methodId : methodIds) {
 459                                 int methodNumId = intDecl.getMethodNumId(methodId);
 460                                 print(Integer.toString(methodNumId));
 461                                 // Check if this is the last element (don't print a comma)
 462                                 if (i != methodIds.size() - 1) {
 463                                         print(", ");
 464                                 }
 465                                 i++;
 466                         }
 467                         println(" };");
 468                         println("private static List<Integer> set" + newObjectId + "Allowed;");
 469                 }
 470         }
 471
 472
 473         /**
 474          * HELPER: writePropertiesJavaStub() writes the properties of the stub class
 475          */
 476         private void writePropertiesJavaStub(String intface, Set<String> methods, InterfaceDecl intDecl) {
 477
 478                 // Get the object Id
 479                 Integer objId = mapIntfaceObjId.get(intface);
 480                 println("private int objectId = " + objId + ";");
 481                 println("private IoTRMIComm rmiComm;");
 482                 // Write the list of AtomicBoolean variables
 483                 println("// Synchronization variables");
 484                 for (String method : methods) {
 485                         // Generate AtomicBooleans for methods that have return values
 486                         String returnType = intDecl.getMethodType(method);
 487                         int methodNumId = intDecl.getMethodNumId(method);
 488                         if (!returnType.equals("void")) {
 489                                 println("private AtomicBoolean retValueReceived" + methodNumId + " = new AtomicBoolean(false);");
 490                         }
 491                 }
 492                 println("\n");
 493         }
 494
 495
 496         /**
 497          * HELPER: writeConstructorJavaPermission() writes the permission in constructor
 498          */
 499         private void writeConstructorJavaPermission(String intface) {
 500
 501                 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
 502                 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
 503                         String newIntface = intMeth.getKey();
 504                         int newObjectId = getNewIntfaceObjectId(newIntface);
 505                         println("set" + newObjectId + "Allowed = new ArrayList<Integer>(Arrays.asList(object" + newObjectId +"Permission));");
 506                 }
 507         }
 508
 509
 510         /**
 511          * HELPER: writeConstructorJavaStub() writes the constructor of the stub class
 512          */
 513         private void writeConstructorJavaStub(String intface, String newStubClass, Set<String> methods, InterfaceDecl intDecl) {
 514
 515                 println("public " + newStubClass + "(int _localPortSend, int _localPortRecv, int _portSend, int _portRecv, String _skeletonAddress, int _rev) throws Exception {");
 516                 println("if (_localPortSend != 0 && _localPortRecv != 0) {");
 517                 println("rmiComm = new IoTRMICommClient(_localPortSend, _localPortRecv, _portSend, _portRecv, _skeletonAddress, _rev);");
 518                 println("} else");
 519                 println("{");
 520                 println("rmiComm = new IoTRMICommClient(_portSend, _portRecv, _skeletonAddress, _rev);");
 521                 println("}");
 522                 // Register the AtomicBoolean variables
 523                 for (String method : methods) {
 524                         // Generate AtomicBooleans for methods that have return values
 525                         String returnType = intDecl.getMethodType(method);
 526                         int methodNumId = intDecl.getMethodNumId(method);
 527                         if (!returnType.equals("void")) {
 528                                 println("rmiComm.registerStub(objectId, " + methodNumId + ", retValueReceived" + methodNumId + ");");
 529                         }
 530                 }
 531                 println("IoTRMIUtil.mapStub.put(objectId, this);");
 532                 println("}\n");
 533         }
 534
 535
 536         /**
 537          * HELPER: writeCallbackConstructorJavaStub() writes the callback constructor of the stub class
 538          */
 539         private void writeCallbackConstructorJavaStub(String intface, String newStubClass, Set<String> methods, InterfaceDecl intDecl) {
 540
 541                 println("public " + newStubClass + "(IoTRMIComm _rmiComm, int _objectId) throws Exception {");
 542                 println("rmiComm = _rmiComm;");
 543                 println("objectId = _objectId;");
 544                 // Register the AtomicBoolean variables
 545                 for (String method : methods) {
 546                         // Generate AtomicBooleans for methods that have return values
 547                         String returnType = intDecl.getMethodType(method);
 548                         int methodNumId = intDecl.getMethodNumId(method);
 549                         if (!returnType.equals("void")) {
 550                                 println("rmiComm.registerStub(objectId, " + methodNumId + ", retValueReceived" + methodNumId + ");");
 551                         }
 552                 }
 553                 println("}\n");
 554         }
 555
 556
 557         /**
 558          * HELPER: getPortCount() gets port count for different stubs and skeletons
 559          */
 560         private int getPortCount(String intface) {
 561
 562                 if (!mapPortCount.containsKey(intface))
 563                         mapPortCount.put(intface, portCount++);
 564                 return mapPortCount.get(intface);
 565         }
 566
 567
 568         /**
 569          * HELPER: checkAndWriteEnumTypeJavaStub() writes the enum type (convert from enum to int)
 570          */
 571         private void checkAndWriteEnumTypeJavaStub(List<String> methParams, List<String> methPrmTypes) {
 572
 573                 // Iterate and find enum declarations
 574                 for (int i = 0; i < methParams.size(); i++) {
 575                         String paramType = methPrmTypes.get(i);
 576                         String param = methParams.get(i);
 577                         String simpleType = getGenericType(paramType);
 578                         if (isEnumClass(simpleType)) {
 579                         // Check if this is enum type
 580                                 if (isArray(param)) {   // An array
 581                                         println("int len" + i + " = " + getSimpleIdentifier(param) + ".length;");
 582                                         println("int paramEnum" + i + "[] = new int[len" + i + "];");
 583                                         println("for (int i = 0; i < len" + i + "; i++) {");
 584                                         println("paramEnum" + i + "[i] = " + getSimpleIdentifier(param) + "[i].ordinal();");
 585                                         println("}");
 586                                 } else if (isList(paramType)) { // A list
 587                                         println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();");
 588                                         println("int paramEnum" + i + "[] = new int[len" + i + "];");
 589                                         println("for (int i = 0; i < len" + i + "; i++) {");
 590                                         println("paramEnum" + i + "[i] = " + getSimpleIdentifier(param) + ".get(i).ordinal();");
 591                                         println("}");
 592                                 } else {        // Just one element
 593                                         println("int paramEnum" + i + "[] = new int[1];");
 594                                         println("paramEnum" + i + "[0] = " + param + ".ordinal();");
 595                                 }
 596                         }
 597                 }
 598         }
 599
 600
 601         /**
 602          * HELPER: checkAndWriteEnumRetTypeJavaStub() writes the enum return type (convert from enum to int)
 603          */
 604         private void checkAndWriteEnumRetTypeJavaStub(String retType, String method, InterfaceDecl intDecl) {
 605
 606                 // Write the wait-for-return-value part
 607                 writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, null);");
 608                 // Strips off array "[]" for return type
 609                 String pureType = getSimpleArrayType(getGenericType(retType));
 610                 // Take the inner type of generic
 611                 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
 612                         pureType = getGenericType(retType);
 613                 if (isEnumClass(pureType)) {
 614                 // Check if this is enum type
 615                         // Enum decoder
 616                         println("int[] retEnum = (int[]) retObj;");
 617                         println(pureType + "[] enumVals = " + pureType + ".values();");
 618                         if (isArray(retType)) {                 // An array
 619                                 println("int retLen = retEnum.length;");
 620                                 println(pureType + "[] enumRetVal = new " + pureType + "[retLen];");
 621                                 println("for (int i = 0; i < retLen; i++) {");
 622                                 println("enumRetVal[i] = enumVals[retEnum[i]];");
 623                                 println("}");
 624                         } else if (isList(retType)) {   // A list
 625                                 println("int retLen = retEnum.length;");
 626                                 println("List<" + pureType + "> enumRetVal = new ArrayList<" + pureType + ">();");
 627                                 println("for (int i = 0; i < retLen; i++) {");
 628                                 println("enumRetVal.add(enumVals[retEnum[i]]);");
 629                                 println("}");
 630                         } else {        // Just one element
 631                                 println(pureType + " enumRetVal = enumVals[retEnum[0]];");
 632                         }
 633                         println("return enumRetVal;");
 634                 }
 635         }
 636
 637
 638         /**
 639          * HELPER: checkAndWriteStructSetupJavaStub() writes the struct type setup
 640          */
 641         private void checkAndWriteStructSetupJavaStub(List<String> methParams, List<String> methPrmTypes,
 642                         InterfaceDecl intDecl, String method) {
 643
 644                 // Iterate and find struct declarations
 645                 for (int i = 0; i < methParams.size(); i++) {
 646                         String paramType = methPrmTypes.get(i);
 647                         String param = methParams.get(i);
 648                         String simpleType = getGenericType(paramType);
 649                         if (isStructClass(simpleType)) {
 650                         // Check if this is enum type
 651                                 int methodNumId = intDecl.getMethodNumId(method);
 652                                 String helperMethod = methodNumId + "struct" + i;
 653                                 println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";");
 654                                 println("Class<?>[] paramClsStruct" + i + " = new Class<?>[] { int.class };");
 655                                 if (isArray(param)) {   // An array
 656                                         println("Object[] paramObjStruct" + i + " = new Object[] { " + getSimpleArrayType(param) + ".length };");
 657                                 } else if (isList(paramType)) { // A list
 658                                         println("Object[] paramObjStruct" + i + " = new Object[] { " + getSimpleArrayType(param) + ".size() };");
 659                                 } else {        // Just one element
 660                                         println("Object[] paramObjStruct" + i + " = new Object[] { new Integer(1) };");
 661                                 }
 662                                 println("rmiComm.remoteCall(objectId, methodIdStruct" + i +
 663                                                 ", paramClsStruct" + i + ", paramObjStruct" + i + ");\n");
 664                         }
 665                 }
 666         }
 667
 668
 669         /**
 670          * HELPER: isStructPresent() checks presence of struct
 671          */
 672         private boolean isStructPresent(List<String> methParams, List<String> methPrmTypes) {
 673
 674                 // Iterate and find enum declarations
 675                 for (int i = 0; i < methParams.size(); i++) {
 676                         String paramType = methPrmTypes.get(i);
 677                         String param = methParams.get(i);
 678                         String simpleType = getGenericType(paramType);
 679                         if (isStructClass(simpleType))
 680                                 return true;
 681                 }
 682                 return false;
 683         }
 684
 685
 686         /**
 687          * HELPER: writeLengthStructParamClassJavaStub() writes lengths of parameters
 688          */
 689         private void writeLengthStructParamClassJavaStub(List<String> methParams, List<String> methPrmTypes) {
 690
 691                 // Iterate and find struct declarations - count number of params
 692                 for (int i = 0; i < methParams.size(); i++) {
 693                         String paramType = methPrmTypes.get(i);
 694                         String param = methParams.get(i);
 695                         String simpleType = getGenericType(paramType);
 696                         if (isStructClass(simpleType)) {
 697                                 int members = getNumOfMembers(simpleType);
 698                                 if (isArray(param)) {                   // An array
 699                                         String structLen = getSimpleArrayType(param) + ".length";
 700                                         print(members + "*" + structLen);
 701                                 } else if (isList(paramType)) { // A list
 702                                         String structLen = getSimpleArrayType(param) + ".size()";
 703                                         print(members + "*" + structLen);
 704                                 } else
 705                                         print(Integer.toString(members));
 706                         } else
 707                                 print("1");
 708                         if (i != methParams.size() - 1) {
 709                                 print("+");
 710                         }
 711                 }
 712         }
 713
 714
 715         /**
 716          * HELPER: writeStructMembersJavaStub() writes parameters of struct
 717          */
 718         private void writeStructMembersJavaStub(String simpleType, String paramType, String param) {
 719
 720                 // Get the struct declaration for this struct and generate initialization code
 721                 StructDecl structDecl = getStructDecl(simpleType);
 722                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
 723                 List<String> members = structDecl.getMembers(simpleType);
 724                 if (isArray(param)) {                   // An array
 725                         println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".length; i++) {");
 726                         for (int i = 0; i < members.size(); i++) {
 727                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 728                                 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
 729                                 print("paramObj[pos++] = " + getSimpleIdentifier(param) + "[i].");
 730                                 print(getSimpleIdentifier(members.get(i)));
 731                                 println(";");
 732                         }
 733                         println("}");
 734                 } else if (isList(paramType)) { // A list
 735                         println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {");
 736                         for (int i = 0; i < members.size(); i++) {
 737                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 738                                 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
 739                                 print("paramObj[pos++] = " + getSimpleIdentifier(param) + ".get(i).");
 740                                 print(getSimpleIdentifier(members.get(i)));
 741                                 println(";");
 742                         }
 743                         println("}");
 744                 } else {        // Just one struct element
 745                         for (int i = 0; i < members.size(); i++) {
 746                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 747                                 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
 748                                 print("paramObj[pos++] = " + getSimpleIdentifier(param) + ".");
 749                                 print(getSimpleIdentifier(members.get(i)));
 750                                 println(";");
 751                         }
 752                 }
 753         }
 754
 755
 756         /**
 757          * HELPER: writeStructParamClassJavaStub() writes parameters if struct is present
 758          */
 759         private void writeStructParamClassJavaStub(List<String> methParams, List<String> methPrmTypes, Set<String> callbackType) {
 760
 761                 print("int paramLen = ");
 762                 writeLengthStructParamClassJavaStub(methParams, methPrmTypes);
 763                 println(";");
 764                 println("Object[] paramObj = new Object[paramLen];");
 765                 println("Class<?>[] paramCls = new Class<?>[paramLen];");
 766                 println("int pos = 0;");
 767                 // Iterate again over the parameters
 768                 for (int i = 0; i < methParams.size(); i++) {
 769                         String paramType = methPrmTypes.get(i);
 770                         String param = methParams.get(i);
 771                         String simpleType = getGenericType(paramType);
 772                         if (isStructClass(simpleType)) {
 773                                 writeStructMembersJavaStub(simpleType, paramType, param);
 774                         } else if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
 775                                 println("paramCls[pos] = int[].class;");
 776                                 println("paramObj[pos++] = objIdSent" + i + ";");
 777                         } else {
 778                                 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
 779                                 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
 780                                 print("paramObj[pos++] = ");
 781                                 print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
 782                                 println(";");
 783                         }
 784                 }
 785
 786         }
 787
 788
 789         /**
 790          * HELPER: writeStructRetMembersJavaStub() writes parameters of struct for return statement
 791          */
 792         private void writeStructRetMembersJavaStub(String simpleType, String retType) {
 793
 794                 // Get the struct declaration for this struct and generate initialization code
 795                 StructDecl structDecl = getStructDecl(simpleType);
 796                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
 797                 List<String> members = structDecl.getMembers(simpleType);
 798                 if (isArrayOrList(retType, retType)) {  // An array or list
 799                         println("for(int i = 0; i < retLen; i++) {");
 800                 }
 801                 if (isArray(retType)) { // An array
 802                         for (int i = 0; i < members.size(); i++) {
 803                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 804                                 print("structRet[i]." + getSimpleIdentifier(members.get(i)));
 805                                 println(" = (" + getSimpleType(getEnumType(prmType)) + ") retActualObj[retObjPos++];");
 806                         }
 807                         println("}");
 808                 } else if (isList(retType)) {   // A list
 809                         println(simpleType + " structRetMem = new " + simpleType + "();");
 810                         for (int i = 0; i < members.size(); i++) {
 811                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 812                                 print("structRetMem." + getSimpleIdentifier(members.get(i)));
 813                                 println(" = (" + getSimpleType(getEnumType(prmType)) + ") retActualObj[retObjPos++];");
 814                         }
 815                         println("structRet.add(structRetMem);");
 816                         println("}");
 817                 } else {        // Just one struct element
 818                         for (int i = 0; i < members.size(); i++) {
 819                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 820                                 print("structRet." + getSimpleIdentifier(members.get(i)));
 821                                 println(" = (" + getSimpleType(getEnumType(prmType)) + ") retActualObj[retObjPos++];");
 822                         }
 823                 }
 824                 println("return structRet;");
 825         }
 826
 827
 828         /**
 829          * HELPER: writeStructReturnJavaStub() writes parameters if struct is present for return statement
 830          */
 831         private void writeStructReturnJavaStub(String simpleType, String retType, String method, InterfaceDecl intDecl) {
 832
 833                 // Handle the returned struct size
 834                 writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, null);");
 835                 // Minimum retLen is 1 if this is a single struct object
 836                 println("int retLen = (int) retObj;");
 837                 int numMem = getNumOfMembers(simpleType);
 838                 println("Class<?>[] retCls = new Class<?>[" + numMem + "*retLen];");
 839                 println("Class<?>[] retClsVal = new Class<?>[" + numMem + "*retLen];");
 840                 println("int retPos = 0;");
 841                 // Get the struct declaration for this struct and generate initialization code
 842                 StructDecl structDecl = getStructDecl(simpleType);
 843                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
 844                 List<String> members = structDecl.getMembers(simpleType);
 845                 if (isArrayOrList(retType, retType)) {  // An array or list
 846                         println("for(int i = 0; i < retLen; i++) {");
 847                         for (int i = 0; i < members.size(); i++) {
 848                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 849                                 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
 850                                 println("retClsVal[retPos++] = null;");
 851                         }
 852                         println("}");
 853                 } else {        // Just one struct element
 854                         for (int i = 0; i < members.size(); i++) {
 855                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
 856                                 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
 857                                 println("retClsVal[retPos++] = null;");
 858                         }
 859                 }
 860                 // Handle the actual returned struct
 861                 writeWaitForReturnValueJava(method, intDecl, "Object[] retActualObj = rmiComm.getStructObjects(retCls, retClsVal);");
 862                 if (isArray(retType)) {                 // An array
 863                         println(simpleType + "[] structRet = new " + simpleType + "[retLen];");
 864                         println("for(int i = 0; i < retLen; i++) {");
 865                         println("structRet[i] = new " + simpleType + "();");
 866                         println("}");
 867                 } else if (isList(retType)) {   // A list
 868                         println("List<" + simpleType + "> structRet = new ArrayList<" + simpleType + ">();");
 869                 } else
 870                         println(simpleType + " structRet = new " + simpleType + "();");
 871                 println("int retObjPos = 0;");
 872                 writeStructRetMembersJavaStub(simpleType, retType);
 873         }
 874
 875
 876         /**
 877          * HELPER: writeWaitForReturnValueJava() writes the synchronization part for return values
 878          */
 879         private void writeWaitForReturnValueJava(String method, InterfaceDecl intDecl, String getReturnValue) {
 880
 881                 println("// Waiting for return value");
 882                 int methodNumId = intDecl.getMethodNumId(method);
 883                 println("while (!retValueReceived" + methodNumId + ".get());");
 884                 println(getReturnValue);
 885                 println("retValueReceived" + methodNumId + ".set(false);");
 886                 println("rmiComm.setGetReturnBytes();\n");
 887         }
 888
 889
 890         /**
 891          * HELPER: writeStdMethodBodyJavaStub() writes the standard method body in the stub class
 892          */
 893         private void writeStdMethodBodyJavaStub(InterfaceDecl intDecl, List<String> methParams,
 894                         List<String> methPrmTypes, String method, Set<String> callbackType) {
 895
 896                 checkAndWriteStructSetupJavaStub(methParams, methPrmTypes, intDecl, method);
 897                 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
 898                 String retType = intDecl.getMethodType(method);
 899                 println("Class<?> retType = " + getSimpleType(getStructType(getEnumType(retType))) + ".class;");
 900                 checkAndWriteEnumTypeJavaStub(methParams, methPrmTypes);
 901                 // Generate array of parameter types
 902                 if (isStructPresent(methParams, methPrmTypes)) {
 903                         writeStructParamClassJavaStub(methParams, methPrmTypes, callbackType);
 904                 } else {
 905                         print("Class<?>[] paramCls = new Class<?>[] { ");
 906                         for (int i = 0; i < methParams.size(); i++) {
 907                                 String prmType = methPrmTypes.get(i);
 908                                 if (checkCallbackType(prmType, callbackType)) { // Check if this has callback object
 909                                         print("int[].class");
 910                                 } else { // Generate normal classes if it's not a callback object
 911                                         String paramType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
 912                                         print(getSimpleType(getEnumType(paramType)) + ".class");
 913                                 }
 914                                 // Check if this is the last element (don't print a comma)
 915                                 if (i != methParams.size() - 1) {
 916                                         print(", ");
 917                                 }
 918                         }
 919                         println(" };");
 920                         // Generate array of parameter objects
 921                         print("Object[] paramObj = new Object[] { ");
 922                         for (int i = 0; i < methParams.size(); i++) {
 923                                 String paramType = methPrmTypes.get(i);
 924                                 if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
 925                                         print("objIdSent" + i);
 926                                 } else
 927                                         print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
 928                                 // Check if this is the last element (don't print a comma)
 929                                 if (i != methParams.size() - 1) {
 930                                         print(", ");
 931                                 }
 932                         }
 933                         println(" };");
 934                 }
 935                 // Send method call first and wait for return value separately
 936                 println("rmiComm.remoteCall(objectId, methodId, paramCls, paramObj);");
 937                 // Check if this is "void"
 938                 if (!retType.equals("void")) { // We do have a return value
 939                         // Generate array of parameter types
 940                         if (isStructClass(getGenericType(getSimpleArrayType(retType)))) {
 941                                 writeStructReturnJavaStub(getGenericType(getSimpleArrayType(retType)), retType, method, intDecl);
 942                         } else {
 943                                 // This is an enum type
 944                                 if (getParamCategory(getGenericType(getSimpleArrayType(retType))) == ParamCategory.ENUM) {
 945                                         //println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);");
 946                                         checkAndWriteEnumRetTypeJavaStub(retType, method, intDecl);
 947                                 } else if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) {
 948                                 // Check if the return value NONPRIMITIVES
 949                                         String retGenValType = getGenericType(retType);
 950                                         println("Class<?> retGenValType = " + retGenValType + ".class;");
 951                                         writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, retGenValType);");
 952                                         println("return (" + retType + ")retObj;");
 953                                 } else {
 954                                         writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, null);");
 955                                         println("return (" + retType + ")retObj;");
 956                                 }
 957                         }
 958                 }
 959         }
 960
 961
 962         /**
 963          * HELPER: returnGenericCallbackType() returns the callback type
 964          */
 965         private String returnGenericCallbackType(String paramType) {
 966
 967                 if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES)
 968                         return getGenericType(paramType);
 969                 else
 970                         return paramType;
 971         }
 972
 973
 974         /**
 975          * HELPER: checkCallbackType() checks the callback type
 976          */
 977         private boolean checkCallbackType(String paramType, Set<String> callbackType) {
 978
 979                 String prmType = returnGenericCallbackType(paramType);
 980                 if (callbackType == null)       // If there is no callbackType it means not a callback method
 981                         return false;
 982                 else {
 983                         for (String type : callbackType) {
 984                                 if (type.equals(prmType))
 985                                         return true;    // Check callbackType one by one
 986                         }
 987                         return false;
 988                 }
 989         }
 990
 991
 992         /**
 993          * HELPER: checkCallbackType() checks the callback type
 994          */
 995         private boolean checkCallbackType(String paramType, String callbackType) {
 996
 997                 String prmType = returnGenericCallbackType(paramType);
 998                 if (callbackType == null)       // If there is no callbackType it means not a callback method
 999                         return false;
1000                 else
1001                         return callbackType.equals(prmType);
1002         }
1003
1004
1005         /**
1006          * HELPER: writeCallbackInstantiationMethodBodyJavaStub() writes the callback object instantiation in the method of the stub class
1007          */
1008         private void writeCallbackInstantiationMethodBodyJavaStub(String paramIdent, String callbackType, int counter, boolean isMultipleCallbacks) {
1009
1010                 println("if (!IoTRMIUtil.mapSkel.containsKey(" + paramIdent + ")) {");
1011                 println("int newObjIdSent = rmiComm.getObjectIdCounter();");
1012                 if (isMultipleCallbacks)
1013                         println("objIdSent" + counter + "[cnt" + counter + "++] = newObjIdSent;");
1014                 else
1015                         println("objIdSent" + counter + "[0] = newObjIdSent;");
1016                 println("rmiComm.decrementObjectIdCounter();");
1017                 println(callbackType + "_Skeleton skel" + counter + " = new " + callbackType + "_Skeleton(" + paramIdent + ", rmiComm, newObjIdSent);");
1018                 println("IoTRMIUtil.mapSkel.put(" + paramIdent + ", skel" + counter + ");");
1019                 println("IoTRMIUtil.mapSkelId.put(" + paramIdent + ", newObjIdSent);");
1020                 println("Thread thread = new Thread() {");
1021                 println("public void run() {");
1022                 println("try {");
1023                 println("skel" + counter + ".___waitRequestInvokeMethod();");
1024                 println("} catch (Exception ex) {");
1025                 println("ex.printStackTrace();");
1026                 println("throw new Error(\"Exception when trying to run ___waitRequestInvokeMethod() for " +
1027                         callbackType + "_Skeleton!\");");
1028                 println("}");
1029                 println("}");
1030                 println("};");
1031                 println("thread.start();");
1032                 println("while(!skel" + counter + ".didAlreadyInitWaitInvoke());");
1033                 println("}");
1034                 println("else");
1035                 println("{");
1036                 println("int newObjIdSent = IoTRMIUtil.mapSkelId.get(" + paramIdent + ");");
1037                 if (isMultipleCallbacks)
1038                         println("objIdSent" + counter + "[cnt" + counter + "++] = newObjIdSent;");
1039                 else
1040                         println("objIdSent" + counter + "[0] = newObjIdSent;");
1041                 println("}");
1042         }
1043
1044
1045         /**
1046          * HELPER: writeCallbackMethodBodyJavaStub() writes the callback method of the stub class
1047          */
1048         private void writeCallbackMethodBodyJavaStub(InterfaceDecl intDecl, List<String> methParams,
1049                         List<String> methPrmTypes, String method, Set<String> callbackType) {
1050
1051                 // Determine callback object counter type (List vs. single variable)
1052                 for (int i = 0; i < methParams.size(); i++) {
1053                         String paramType = methPrmTypes.get(i);
1054                         if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1055                                 print("int[] objIdSent" + i + " = ");
1056                                 String param = methParams.get(i);
1057                                 if (isArray(methParams.get(i)))
1058                                         println("new int[" + getSimpleIdentifier(methParams.get(i)) + ".length];");
1059                                 else if (isList(methPrmTypes.get(i)))
1060                                         println("new int[" + getSimpleIdentifier(methParams.get(i)) + ".size()];");
1061                                 else
1062                                         println("new int[1];");
1063                         }
1064                 }
1065                 println("try {");
1066                 // Check if this is single object, array, or list of objects
1067                 for (int i = 0; i < methParams.size(); i++) {
1068                         String paramType = methPrmTypes.get(i);
1069                         if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1070                                 String param = methParams.get(i);
1071                                 if (isArrayOrList(paramType, param)) {  // Generate loop
1072                                         println("int cnt" + i + " = 0;");
1073                                         println("for (" + getGenericType(paramType) + " cb : " + getSimpleIdentifier(param) + ") {");
1074                                         writeCallbackInstantiationMethodBodyJavaStub("cb", returnGenericCallbackType(paramType), i, true);
1075                                 } else
1076                                         writeCallbackInstantiationMethodBodyJavaStub(getSimpleIdentifier(param), returnGenericCallbackType(paramType), i, false);
1077                                 if (isArrayOrList(paramType, param))
1078                                         println("}");
1079                         }
1080                 }
1081                 print("}");
1082                 println(" catch (Exception ex) {");
1083                 println("ex.printStackTrace();");
1084                 println("throw new Error(\"Exception when generating skeleton objects!\");");
1085                 println("}\n");
1086         }
1087
1088
1089         /**
1090          * HELPER: writeMethodJavaStub() writes the methods of the stub class
1091          */
1092         private void writeMethodJavaStub(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses, String newStubClass) {
1093
1094                 for (String method : methods) {
1095
1096                         List<String> methParams = intDecl.getMethodParams(method);
1097                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1098                         print("public " + intDecl.getMethodType(method) + " " +
1099                                 intDecl.getMethodId(method) + "(");
1100                         boolean isCallbackMethod = false;
1101                         //String callbackType = null;
1102                         Set<String> callbackType = new HashSet<String>();
1103                         for (int i = 0; i < methParams.size(); i++) {
1104
1105                                 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
1106                                 // Check if this has callback object
1107                                 if (callbackClasses.contains(paramType)) {
1108                                         isCallbackMethod = true;
1109                                         //callbackType = paramType;
1110                                         callbackType.add(paramType);
1111                                         // Even if there're 2 callback arguments, we expect them to be of the same interface
1112                                 }
1113                                 print(methPrmTypes.get(i) + " " + methParams.get(i));
1114                                 // Check if this is the last element (don't print a comma)
1115                                 if (i != methParams.size() - 1) {
1116                                         print(", ");
1117                                 }
1118                         }
1119                         println(") {");
1120                         // Now, write the body of stub!
1121                         if (isCallbackMethod)
1122                                 writeCallbackMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method, callbackType);
1123                         writeStdMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method, callbackType);
1124                         println("}\n");
1125                 }
1126         }
1127
1128
1129         /**
1130          * HELPER: getStubInterface() gets stub interface name based on original interface
1131          */
1132         public String getStubInterface(String intface) {
1133
1134                 return mapInt2NewIntName.get(intface);
1135         }
1136
1137
1138         /**
1139          * generateJavaStubClasses() generate stubs based on the methods list in Java
1140          */
1141         public void generateJavaStubClasses() throws IOException {
1142
1143                 // Create a new directory
1144                 String path = createDirectories(dir, subdir);
1145                 for (String intface : mapIntfacePTH.keySet()) {
1146
1147                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
1148                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
1149
1150                                 // Open a new file to write into
1151                                 String newIntface = intMeth.getKey();
1152                                 String newStubClass = newIntface + "_Stub";
1153                                 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".java");
1154                                 pw = new PrintWriter(new BufferedWriter(fw));
1155                                 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
1156                                 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
1157                                 // Pass in set of methods and get import classes
1158                                 Set<String> methods = intMeth.getValue();
1159                                 Set<String> importClasses = getImportClasses(methods, intDecl);
1160                                 List<String> stdImportClasses = getStandardJavaImportClasses();
1161                                 List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
1162                                 // Find out if there are callback objects
1163                                 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
1164                                 boolean callbackExist = !callbackClasses.isEmpty();
1165                                 // Check if this interface is a callback class
1166                                 if(isCallbackClass(intface))
1167                                         println("package " + CODE_PREFIX + "." + mapInt2Drv.get(intface) + ";\n");
1168                                 else
1169                                         println("package " + controllerClass + ";\n");
1170                                 printImportStatements(allImportClasses);
1171                                 println("\nimport " + INTERFACE_PACKAGE + ".*;\n");
1172                                 // Write class header
1173                                 println("public class " + newStubClass + " implements " + newIntface + " {\n");
1174                                 // Write properties
1175                                 writePropertiesJavaStub(intface, intMeth.getValue(), intDecl);
1176                                 // Write constructor
1177                                 writeConstructorJavaStub(intface, newStubClass, intMeth.getValue(), intDecl);
1178                                 // Write callback constructor (used if this stub is treated as a callback stub)
1179                                 writeCallbackConstructorJavaStub(intface, newStubClass, intMeth.getValue(), intDecl);
1180                                 // Write methods
1181                                 writeMethodJavaStub(intMeth.getValue(), intDecl, callbackClasses, newStubClass);
1182                                 println("}");
1183                                 pw.close();
1184                                 System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".java...");
1185                         }
1186                 }
1187         }
1188
1189
1190         /**
1191          * HELPER: writePropertiesJavaSkeleton() writes the properties of the skeleton class
1192          */
1193         private void writePropertiesJavaSkeleton(String intface, InterfaceDecl intDecl) {
1194
1195                 println("private " + intface + " mainObj;");
1196                 Integer objId = mapIntfaceObjId.get(intface);
1197                 println("private int objectId = " + objId + ";");
1198                 println("// Communications and synchronizations");
1199                 println("private IoTRMIComm rmiComm;");
1200                 println("private AtomicBoolean didAlreadyInitWaitInvoke;");
1201                 println("private AtomicBoolean methodReceived;");
1202                 println("private byte[] methodBytes = null;");
1203                 println("// Permissions");
1204                 writePropertiesJavaPermission(intface, intDecl);
1205                 println("\n");
1206         }
1207
1208
1209         /**
1210          * HELPER: writeStructPermissionJavaSkeleton() writes permission for struct helper
1211          */
1212         private void writeStructPermissionJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl, String intface) {
1213
1214                 // Use this set to handle two same methodIds
1215                 for (String method : methods) {
1216                         List<String> methParams = intDecl.getMethodParams(method);
1217                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1218                         // Check for params with structs
1219                         for (int i = 0; i < methParams.size(); i++) {
1220                                 String paramType = methPrmTypes.get(i);
1221                                 String param = methParams.get(i);
1222                                 String simpleType = getGenericType(paramType);
1223                                 if (isStructClass(simpleType)) {
1224                                         int methodNumId = intDecl.getMethodNumId(method);
1225                                         String helperMethod = methodNumId + "struct" + i;
1226                                         int methodHelperNumId = intDecl.getHelperMethodNumId(helperMethod);
1227                                         // Iterate over interfaces to give permissions to
1228                                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
1229                                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
1230                                                 String newIntface = intMeth.getKey();
1231                                                 int newObjectId = getNewIntfaceObjectId(newIntface);
1232                                                 println("set" + newObjectId + "Allowed.add(" + methodHelperNumId + ");");
1233                                         }
1234                                 }
1235                         }
1236                 }
1237         }
1238
1239
1240         /**
1241          * HELPER: writeConstructorJavaSkeleton() writes the constructor of the skeleton class
1242          */
1243         private void writeConstructorJavaSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl,
1244                         Collection<String> methods, boolean callbackExist) {
1245
1246                 println("public " + newSkelClass + "(" + intface + " _mainObj, int _portSend, int _portRecv) throws Exception {");
1247                 println("mainObj = _mainObj;");
1248                 println("rmiComm = new IoTRMICommServer(_portSend, _portRecv);");
1249                 // Generate permission control initialization
1250                 writeConstructorJavaPermission(intface);
1251                 writeStructPermissionJavaSkeleton(methods, intDecl, intface);
1252                 println("IoTRMIUtil.mapSkel.put(_mainObj, this);");
1253                 println("IoTRMIUtil.mapSkelId.put(_mainObj, objectId);");
1254                 println("didAlreadyInitWaitInvoke = new AtomicBoolean(false);");
1255                 println("methodReceived = new AtomicBoolean(false);");
1256                 println("rmiComm.registerSkeleton(objectId, methodReceived);");
1257                 println("Thread thread1 = new Thread() {");
1258                 println("public void run() {");
1259                 println("try {");
1260                 println("___waitRequestInvokeMethod();");
1261                 println("}");
1262                 println("catch (Exception ex)");
1263                 println("{");
1264                 println("ex.printStackTrace();");
1265                 println("}");
1266                 println("}");
1267                 println("};");
1268                 println("thread1.start();");
1269                 println("}\n");
1270         }
1271
1272
1273         /**
1274          * HELPER: writeCallbackConstructorJavaSkeleton() writes the constructor of the skeleton class
1275          */
1276         private void writeCallbackConstructorJavaSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl,
1277                         Collection<String> methods, boolean callbackExist) {
1278
1279                 println("public " + newSkelClass + "(" + intface + " _mainObj, IoTRMIComm _rmiComm, int _objectId) throws Exception {");
1280                 println("mainObj = _mainObj;");
1281                 println("rmiComm = _rmiComm;");
1282                 println("objectId = _objectId;");
1283                 // Generate permission control initialization
1284                 writeConstructorJavaPermission(intface);
1285                 writeStructPermissionJavaSkeleton(methods, intDecl, intface);
1286                 println("didAlreadyInitWaitInvoke = new AtomicBoolean(false);");
1287                 println("methodReceived = new AtomicBoolean(false);");
1288                 println("rmiComm.registerSkeleton(objectId, methodReceived);");
1289                 println("}\n");
1290         }
1291
1292
1293         /**
1294          * HELPER: writeStdMethodBodyJavaSkeleton() writes the standard method body in the skeleton class
1295          */
1296         private void writeStdMethodBodyJavaSkeleton(List<String> methParams, String methodId, String methodType) {
1297
1298                 if (methodType.equals("void"))
1299                         print("mainObj." + methodId + "(");
1300                 else
1301                         print("return mainObj." + methodId + "(");
1302                 for (int i = 0; i < methParams.size(); i++) {
1303
1304                         print(getSimpleIdentifier(methParams.get(i)));
1305                         // Check if this is the last element (don't print a comma)
1306                         if (i != methParams.size() - 1) {
1307                                 print(", ");
1308                         }
1309                 }
1310                 println(");");
1311         }
1312
1313
1314         /**
1315          * HELPER: writeMethodJavaSkeleton() writes the method of the skeleton class
1316          */
1317         private void writeMethodJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
1318
1319                 for (String method : methods) {
1320
1321                         List<String> methParams = intDecl.getMethodParams(method);
1322                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1323                         String methodId = intDecl.getMethodId(method);
1324                         print("public " + intDecl.getMethodType(method) + " " + methodId + "(");
1325                         for (int i = 0; i < methParams.size(); i++) {
1326
1327                                 String origParamType = methPrmTypes.get(i);
1328                                 String paramType = checkAndGetParamClass(origParamType);
1329                                 print(paramType + " " + methParams.get(i));
1330                                 // Check if this is the last element (don't print a comma)
1331                                 if (i != methParams.size() - 1) {
1332                                         print(", ");
1333                                 }
1334                         }
1335                         println(") {");
1336                         // Now, write the body of skeleton!
1337                         writeStdMethodBodyJavaSkeleton(methParams, methodId, intDecl.getMethodType(method));
1338                         println("}\n");
1339                 }
1340         }
1341
1342
1343         /**
1344          * HELPER: writeCallbackInstantiationJavaStubGeneration() writes the instantiation of callback stubs
1345          */
1346         private void writeCallbackInstantiationJavaStubGeneration(String exchParamType, int counter) {
1347
1348                 println(exchParamType + " newStub" + counter + " = null;");
1349                 println("if(!IoTRMIUtil.mapStub.containsKey(objIdRecv" + counter + ")) {");
1350                 println("newStub" + counter + " = new " + exchParamType + "_Stub(rmiComm, objIdRecv" + counter + ");");
1351                 println("IoTRMIUtil.mapStub.put(objIdRecv" + counter + ", newStub" + counter + ");");
1352                 println("rmiComm.setObjectIdCounter(objIdRecv" + counter + ");");
1353                 println("rmiComm.decrementObjectIdCounter();");
1354                 println("}");
1355                 println("else {");
1356                 println("newStub" + counter + " = (" + exchParamType + "_Stub) IoTRMIUtil.mapStub.get(objIdRecv" + counter + ");");
1357                 println("}");
1358         }
1359
1360
1361         /**
1362          * HELPER: writeCallbackJavaStubGeneration() writes the callback stub generation part
1363          */
1364         private Map<Integer,String> writeCallbackJavaStubGeneration(List<String> methParams, List<String> methPrmTypes,
1365                         Set<String> callbackType, boolean isStructMethod) {
1366
1367                 Map<Integer,String> mapStubParam = new HashMap<Integer,String>();
1368                 String offsetPfx = "";
1369                 if (isStructMethod)
1370                         offsetPfx = "offset";
1371                 // Iterate over callback objects
1372                 for (int i = 0; i < methParams.size(); i++) {
1373                         String paramType = methPrmTypes.get(i);
1374                         String param = methParams.get(i);
1375                         if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1376                                 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
1377                                 // Print array if this is array or list if this is a list of callback objects
1378                                 println("int[] stubIdArray" + i + " = (int[]) paramObj[" + offsetPfx + i + "];");
1379                                 if (isArray(param)) {
1380                                         println("int numStubs" + i + " = stubIdArray" + i + ".length;");
1381                                         println(exchParamType + "[] stub" + i + " = new " + exchParamType + "[numStubs" + i + "];");
1382                                 } else if (isList(paramType)) {
1383                                         println("int numStubs" + i + " = stubIdArray" + i + ".length;");
1384                                         println("List<" + exchParamType + "> stub" + i + " = new ArrayList<" + exchParamType + ">();");
1385                                 } else {
1386                                         println("int objIdRecv" + i + " = stubIdArray" + i + "[0];");
1387                                         writeCallbackInstantiationJavaStubGeneration(exchParamType, i);
1388                                 }
1389                         }
1390                         // Generate a loop if needed
1391                         if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
1392                                 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
1393                                 if (isArray(param)) {
1394                                         println("for (int i = 0; i < numStubs" + i + "; i++) {");
1395                                         println("int objIdRecv" + i + " = stubIdArray" + i + "[i];");
1396                                         writeCallbackInstantiationJavaStubGeneration(exchParamType, i);
1397                                         println("stub" + i + "[i] = newStub" + i + ";");
1398                                         println("}");
1399                                 } else if (isList(paramType)) {
1400                                         println("for (int i = 0; i < numStubs" + i + "; i++) {");
1401                                         println("int objIdRecv" + i + " = stubIdArray" + i + "[i];");
1402                                         writeCallbackInstantiationJavaStubGeneration(exchParamType, i);
1403                                         println("stub" + i + ".add(newStub" + i + ");");
1404                                         println("}");
1405                                 } else
1406                                         println(exchParamType + " stub" + i + " = newStub" + i + ";");
1407                                 mapStubParam.put(i, "stub" + i);        // List of all stub parameters
1408                         }
1409                 }
1410                 return mapStubParam;
1411         }
1412
1413
1414         /**
1415          * HELPER: checkAndWriteEnumTypeJavaSkeleton() writes the enum type (convert from enum to int)
1416          */
1417         private void checkAndWriteEnumTypeJavaSkeleton(List<String> methParams, List<String> methPrmTypes, boolean isStructMethod) {
1418
1419                 String offsetPfx = "";
1420                 if (isStructMethod)
1421                         offsetPfx = "offset";
1422                 // Iterate and find enum declarations
1423                 boolean printed = false;
1424                 for (int i = 0; i < methParams.size(); i++) {
1425                         String paramType = methPrmTypes.get(i);
1426                         String param = methParams.get(i);
1427                         String simpleType = getGenericType(paramType);
1428                         if (isEnumClass(simpleType)) {
1429                         // Check if this is enum type
1430                                 println("int paramInt" + i + "[] = (int[]) paramObj[" + offsetPfx + i + "];");
1431                                 if (!printed) {
1432                                         println(simpleType + "[] enumVals = " + simpleType + ".values();");
1433                                         printed = true;
1434                                 }
1435                                 if (isArray(param)) {   // An array
1436                                         println("int len" + i + " = paramInt" + i + ".length;");
1437                                         println(simpleType + "[] paramEnum" + i + " = new " + simpleType + "[len" + i + "];");
1438                                         println("for (int i = 0; i < len" + i + "; i++) {");
1439                                         println("paramEnum" + i + "[i] = enumVals[paramInt" + i + "[i]];");
1440                                         println("}");
1441                                 } else if (isList(paramType)) { // A list
1442                                         println("int len" + i + " = paramInt" + i + ".length;");
1443                                         println("List<" + simpleType + "> paramEnum" + i + " = new ArrayList<" + simpleType + ">();");
1444                                         println("for (int i = 0; i < len" + i + "; i++) {");
1445                                         println("paramEnum" + i + ".add(enumVals[paramInt" + i + "[i]]);");
1446                                         println("}");
1447                                 } else {        // Just one element
1448                                         println(simpleType + " paramEnum" + i + " = enumVals[paramInt" + i + "[0]];");
1449                                 }
1450                         }
1451                 }
1452         }
1453
1454
1455         /**
1456          * HELPER: checkAndWriteEnumRetTypeJavaSkeleton() writes the enum return type (convert from enum to int)
1457          */
1458         private void checkAndWriteEnumRetTypeJavaSkeleton(String retType, String methodId) {
1459
1460                 // Strips off array "[]" for return type
1461                 String pureType = getSimpleArrayType(getGenericType(retType));
1462                 // Take the inner type of generic
1463                 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
1464                         pureType = getGenericType(retType);
1465                 if (isEnumClass(pureType)) {
1466                 // Check if this is enum type
1467                         // Enum decoder
1468                         if (isArray(retType)) {                 // An array
1469                                 print(pureType + "[] retEnum = " + methodId + "(");
1470                         } else if (isList(retType)) {   // A list
1471                                 print("List<" + pureType + "> retEnum = " + methodId + "(");
1472                         } else {        // Just one element
1473                                 print(pureType + " retEnum = " + methodId + "(");
1474                         }
1475                 }
1476         }
1477
1478
1479         /**
1480          * HELPER: checkAndWriteEnumRetConvJavaSkeleton() writes the enum return type (convert from enum to int)
1481          */
1482         private void checkAndWriteEnumRetConvJavaSkeleton(String retType) {
1483
1484                 // Strips off array "[]" for return type
1485                 String pureType = getSimpleArrayType(getGenericType(retType));
1486                 // Take the inner type of generic
1487                 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
1488                         pureType = getGenericType(retType);
1489                 if (isEnumClass(pureType)) {
1490                 // Check if this is enum type
1491                         if (isArray(retType)) { // An array
1492                                 println("int retLen = retEnum.length;");
1493                                 println("int[] retEnumVal = new int[retLen];");
1494                                 println("for (int i = 0; i < retLen; i++) {");
1495                                 println("retEnumVal[i] = retEnum[i].ordinal();");
1496                                 println("}");
1497                         } else if (isList(retType)) {   // A list
1498                                 println("int retLen = retEnum.size();");
1499                                 println("int[] retEnumVal = new int[retLen];");
1500                                 println("for (int i = 0; i < retLen; i++) {");
1501                                 println("retEnumVal[i] = retEnum.get(i).ordinal();");
1502                                 println("}");
1503                         } else {        // Just one element
1504                                 println("int[] retEnumVal = new int[1];");
1505                                 println("retEnumVal[0] = retEnum.ordinal();");
1506                         }
1507                         println("Object retObj = retEnumVal;");
1508                 }
1509         }
1510
1511
1512         /**
1513          * HELPER: writeLengthStructParamClassSkeleton() writes lengths of params
1514          */
1515         private void writeLengthStructParamClassSkeleton(List<String> methParams, List<String> methPrmTypes,
1516                         String method, InterfaceDecl intDecl) {
1517
1518                 // Iterate and find struct declarations - count number of params
1519                 for (int i = 0; i < methParams.size(); i++) {
1520                         String paramType = methPrmTypes.get(i);
1521                         String param = methParams.get(i);
1522                         String simpleType = getGenericType(paramType);
1523                         if (isStructClass(simpleType)) {
1524                                 int members = getNumOfMembers(simpleType);
1525                                 print(Integer.toString(members) + "*");
1526                                 int methodNumId = intDecl.getMethodNumId(method);
1527                                 print("struct" + methodNumId + "Size" + i);
1528                         } else
1529                                 print("1");
1530                         if (i != methParams.size() - 1) {
1531                                 print("+");
1532                         }
1533                 }
1534         }
1535
1536
1537         /**
1538          * HELPER: writeStructMembersJavaSkeleton() writes member parameters of struct
1539          */
1540         private void writeStructMembersJavaSkeleton(String simpleType, String paramType,
1541                         String param, String method, InterfaceDecl intDecl, int iVar) {
1542
1543                 // Get the struct declaration for this struct and generate initialization code
1544                 StructDecl structDecl = getStructDecl(simpleType);
1545                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1546                 List<String> members = structDecl.getMembers(simpleType);
1547                 if (isArrayOrList(paramType, param)) {  // An array or list
1548                         int methodNumId = intDecl.getMethodNumId(method);
1549                         String counter = "struct" + methodNumId + "Size" + iVar;
1550                         println("for(int i = 0; i < " + counter + "; i++) {");
1551                 }
1552                 if (isArrayOrList(paramType, param)) {  // An array or list
1553                         for (int i = 0; i < members.size(); i++) {
1554                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1555                                 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1556                                 println("paramClsGen[pos++] = null;");
1557                         }
1558                         println("}");
1559                 } else {        // Just one struct element
1560                         for (int i = 0; i < members.size(); i++) {
1561                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1562                                 println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1563                                 println("paramClsGen[pos++] = null;");
1564                         }
1565                 }
1566         }
1567
1568
1569         /**
1570          * HELPER: writeStructMembersInitJavaSkeleton() writes member parameters initialization of struct
1571          */
1572         private void writeStructMembersInitJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1573                         List<String> methPrmTypes, String method) {
1574
1575                 println("int objPos = 0;");
1576                 for (int i = 0; i < methParams.size(); i++) {
1577                         String paramType = methPrmTypes.get(i);
1578                         String param = methParams.get(i);
1579                         String simpleType = getGenericType(paramType);
1580                         if (isStructClass(simpleType)) {
1581                                 int methodNumId = intDecl.getMethodNumId(method);
1582                                 String counter = "struct" + methodNumId + "Size" + i;
1583                                 // Declaration
1584                                 if (isArray(param)) {                   // An array
1585                                         println(simpleType + "[] paramStruct" + i + " = new " + simpleType + "[" + counter + "];");
1586                                         println("for(int i = 0; i < " + counter + "; i++) {");
1587                                         println("paramStruct" + i + "[i] = new " + simpleType + "();");
1588                                         println("}");
1589                                 } else if (isList(paramType)) { // A list
1590                                         println("List<" + simpleType + "> paramStruct" + i + " = new ArrayList<" + simpleType + ">();");
1591                                 } else
1592                                         println(simpleType + " paramStruct" + i + " = new " + simpleType + "();");
1593                                 // Initialize members
1594                                 StructDecl structDecl = getStructDecl(simpleType);
1595                                 List<String> members = structDecl.getMembers(simpleType);
1596                                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1597                                 if (isArrayOrList(paramType, param)) {  // An array or list
1598                                         println("for(int i = 0; i < " + counter + "; i++) {");
1599                                 }
1600                                 if (isArray(param)) {   // An array
1601                                         for (int j = 0; j < members.size(); j++) {
1602                                                 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1603                                                 print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j)));
1604                                                 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1605                                         }
1606                                         println("}");
1607                                 } else if (isList(paramType)) { // A list
1608                                         println(simpleType + " paramStructMem = new " + simpleType + "();");
1609                                         for (int j = 0; j < members.size(); j++) {
1610                                                 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1611                                                 print("paramStructMem." + getSimpleIdentifier(members.get(j)));
1612                                                 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1613                                         }
1614                                         println("paramStruct" + i + ".add(paramStructMem);");
1615                                         println("}");
1616                                 } else {        // Just one struct element
1617                                         for (int j = 0; j < members.size(); j++) {
1618                                                 String prmType = checkAndGetArray(memTypes.get(j), members.get(j));
1619                                                 print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j)));
1620                                                 println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];");
1621                                         }
1622                                 }
1623                         } else {
1624                                 // Take offsets of parameters
1625                                 println("int offset" + i +" = objPos++;");
1626                         }
1627                 }
1628         }
1629
1630
1631         /**
1632          * HELPER: writeStructReturnJavaSkeleton() writes struct for return statement
1633          */
1634         private void writeStructReturnJavaSkeleton(String simpleType, String retType) {
1635
1636                 // Minimum retLen is 1 if this is a single struct object
1637                 if (isArray(retType))
1638                         println("int retLen = retStruct.length;");
1639                 else if (isList(retType))
1640                         println("int retLen = retStruct.size();");
1641                 else    // Just single struct object
1642                         println("int retLen = 1;");
1643                 println("Object retLenObj = retLen;");
1644                 println("rmiComm.sendReturnObj(retLenObj, localMethodBytes);");
1645                 int numMem = getNumOfMembers(simpleType);
1646                 println("Class<?>[] retCls = new Class<?>[" + numMem + "*retLen];");
1647                 println("Object[] retObj = new Object[" + numMem + "*retLen];");
1648                 println("int retPos = 0;");
1649                 // Get the struct declaration for this struct and generate initialization code
1650                 StructDecl structDecl = getStructDecl(simpleType);
1651                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
1652                 List<String> members = structDecl.getMembers(simpleType);
1653                 if (isArray(retType)) { // An array or list
1654                         println("for(int i = 0; i < retLen; i++) {");
1655                         for (int i = 0; i < members.size(); i++) {
1656                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1657                                 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1658                                 print("retObj[retPos++] = retStruct[i].");
1659                                 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1660                                 println(";");
1661                         }
1662                         println("}");
1663                 } else if (isList(retType)) {   // An array or list
1664                         println("for(int i = 0; i < retLen; i++) {");
1665                         for (int i = 0; i < members.size(); i++) {
1666                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1667                                 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1668                                 print("retObj[retPos++] = retStruct.get(i).");
1669                                 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1670                                 println(";");
1671                         }
1672                         println("}");
1673                 } else {        // Just one struct element
1674                         for (int i = 0; i < members.size(); i++) {
1675                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
1676                                 println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;");
1677                                 print("retObj[retPos++] = retStruct.");
1678                                 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
1679                                 println(";");
1680                         }
1681                 }
1682
1683         }
1684
1685
1686         /**
1687          * HELPER: writeMethodHelperReturnJavaSkeleton() writes return statement part in skeleton
1688          */
1689         private void writeMethodHelperReturnJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1690                         List<String> methPrmTypes, String method, boolean isCallbackMethod, Set<String> callbackType,
1691                         boolean isStructMethod) {
1692
1693                 checkAndWriteEnumTypeJavaSkeleton(methParams, methPrmTypes, isStructMethod);
1694                 Map<Integer,String> mapStubParam = null;
1695                 if (isCallbackMethod) {
1696                         println("try {");
1697                         mapStubParam = writeCallbackJavaStubGeneration(methParams, methPrmTypes, callbackType, isStructMethod);
1698                 }
1699                 // Check if this is "void"
1700                 String retType = intDecl.getMethodType(method);
1701                 if (retType.equals("void")) {
1702                         print(intDecl.getMethodId(method) + "(");
1703                 } else if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) {  // Enum type
1704                         checkAndWriteEnumRetTypeJavaSkeleton(retType, intDecl.getMethodId(method));
1705                 } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) {        // Struct type
1706                         print(retType + " retStruct = " + intDecl.getMethodId(method) + "(");
1707                 } else { // We do have a return value
1708                         print("Object retObj = " + intDecl.getMethodId(method) + "(");
1709                 }
1710                 for (int i = 0; i < methParams.size(); i++) {
1711
1712                         String paramType = methPrmTypes.get(i);
1713                         if (isCallbackMethod && checkCallbackType(paramType, callbackType)) {
1714                                 print(mapStubParam.get(i));     // Get the callback parameter
1715                         } else if (isEnumClass(getGenericType(paramType))) { // Enum class
1716                                 print(getEnumParam(paramType, methParams.get(i), i));
1717                         } else if (isStructClass(getGenericType(paramType))) {
1718                                 print("paramStruct" + i);
1719                         } else {
1720                                 String prmType = checkAndGetArray(paramType, methParams.get(i));
1721                                 if (isStructMethod)
1722                                         print("(" + prmType + ") paramObj[offset" + i + "]");
1723                                 else
1724                                         print("(" + prmType + ") paramObj[" + i + "]");
1725                         }
1726                         if (i != methParams.size() - 1)
1727                                 print(", ");
1728                 }
1729                 println(");");
1730                 if (!retType.equals("void")) {
1731                         if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { // Enum type
1732                                 checkAndWriteEnumRetConvJavaSkeleton(retType);
1733                                 println("rmiComm.sendReturnObj(retObj, localMethodBytes);");
1734                         } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) { // Struct type
1735                                 writeStructReturnJavaSkeleton(getSimpleArrayType(getGenericType(retType)), retType);
1736                                 println("rmiComm.sendReturnObj(retCls, retObj, localMethodBytes);");
1737                         } else
1738                                 println("rmiComm.sendReturnObj(retObj, localMethodBytes);");
1739                 }
1740                 if (isCallbackMethod) { // Catch exception if this is callback
1741                         print("}");
1742                         println(" catch(Exception ex) {");
1743                         println("ex.printStackTrace();");
1744                         println("throw new Error(\"Exception from callback object instantiation!\");");
1745                         println("}");
1746                 }
1747         }
1748
1749
1750         /**
1751          * HELPER: writeMethodHelperStructJavaSkeleton() writes the struct in skeleton
1752          */
1753         private void writeMethodHelperStructJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1754                         List<String> methPrmTypes, String method, Set<String> callbackClasses) {
1755
1756                 // Generate array of parameter objects
1757                 boolean isCallbackMethod = false;
1758                 Set<String> callbackType = new HashSet<String>();
1759                 println("byte[] localMethodBytes = methodBytes;");
1760                 println("rmiComm.setGetMethodBytes();");
1761                 print("int paramLen = ");
1762                 writeLengthStructParamClassSkeleton(methParams, methPrmTypes, method, intDecl);
1763                 println(";");
1764                 println("Class<?>[] paramCls = new Class<?>[paramLen];");
1765                 println("Class<?>[] paramClsGen = new Class<?>[paramLen];");
1766                 println("int pos = 0;");
1767                 // Iterate again over the parameters
1768                 for (int i = 0; i < methParams.size(); i++) {
1769                         String paramType = methPrmTypes.get(i);
1770                         String param = methParams.get(i);
1771                         String simpleType = getGenericType(paramType);
1772                         if (isStructClass(simpleType)) {
1773                                 writeStructMembersJavaSkeleton(simpleType, paramType, param, method, intDecl, i);
1774                         } else {
1775                                 String prmType = returnGenericCallbackType(methPrmTypes.get(i));
1776                                 if (callbackClasses.contains(prmType)) {
1777                                         isCallbackMethod = true;
1778                                         //callbackType = prmType;
1779                                         callbackType.add(prmType);
1780                                         println("paramCls[pos] = int[].class;");
1781                                         println("paramClsGen[pos++] = null;");
1782                                 } else {        // Generate normal classes if it's not a callback object
1783                                         String paramTypeOth = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1784                                         println("paramCls[pos] = " + getSimpleType(getEnumType(paramTypeOth)) + ".class;");
1785                                         print("paramClsGen[pos++] = ");
1786                                         String prmTypeOth = methPrmTypes.get(i);
1787                                         if (getParamCategory(prmTypeOth) == ParamCategory.NONPRIMITIVES)
1788                                                 println(getTypeOfGeneric(prmType)[0] + ".class;");
1789                                         else
1790                                                 println("null;");
1791                                 }
1792                         }
1793                 }
1794                 println("Object[] paramObj = rmiComm.getMethodParams(paramCls, paramClsGen, localMethodBytes);");
1795                 writeStructMembersInitJavaSkeleton(intDecl, methParams, methPrmTypes, method);
1796                 // Write the return value part
1797                 writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, true);
1798         }
1799
1800
1801         /**
1802          * HELPER: writeStdMethodHelperBodyJavaSkeleton() writes the standard method body helper in the skeleton class
1803          */
1804         private void writeStdMethodHelperBodyJavaSkeleton(InterfaceDecl intDecl, List<String> methParams,
1805                         List<String> methPrmTypes, String method, Set<String> callbackClasses) {
1806
1807                 // Generate array of parameter objects
1808                 boolean isCallbackMethod = false;
1809                 Set<String> callbackType = new HashSet<String>();
1810                 println("byte[] localMethodBytes = methodBytes;");
1811                 println("rmiComm.setGetMethodBytes();");
1812                 print("Object[] paramObj = rmiComm.getMethodParams(new Class<?>[] { ");
1813                 for (int i = 0; i < methParams.size(); i++) {
1814
1815                         String paramType = returnGenericCallbackType(methPrmTypes.get(i));
1816                         if (callbackClasses.contains(paramType)) {
1817                                 isCallbackMethod = true;
1818                                 callbackType.add(paramType);
1819                                 print("int[].class");
1820                         } else {        // Generate normal classes if it's not a callback object
1821                                 String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i));
1822                                 print(getSimpleType(getEnumType(prmType)) + ".class");
1823                         }
1824                         if (i != methParams.size() - 1)
1825                                 print(", ");
1826                 }
1827                 // Generate generic class if it's a generic type.. null otherwise
1828                 print(" }, new Class<?>[] { ");
1829                 for (int i = 0; i < methParams.size(); i++) {
1830                         String prmType = methPrmTypes.get(i);
1831                         if ((getParamCategory(prmType) == ParamCategory.NONPRIMITIVES) &&
1832                                 !isEnumClass(getGenericType(prmType)) &&
1833                                 !callbackClasses.contains(getGenericType(prmType)))
1834                                         print(getGenericType(prmType) + ".class");
1835                         else
1836                                 print("null");
1837                         if (i != methParams.size() - 1)
1838                                 print(", ");
1839                 }
1840                 println(" }, localMethodBytes);");
1841                 // Write the return value part
1842                 writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, false);
1843         }
1844
1845
1846         /**
1847          * HELPER: writeMethodHelperJavaSkeleton() writes the method helper of the skeleton class
1848          */
1849         private void writeMethodHelperJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses) {
1850
1851                 // Use this set to handle two same methodIds
1852                 Set<String> uniqueMethodIds = new HashSet<String>();
1853                 for (String method : methods) {
1854
1855                         List<String> methParams = intDecl.getMethodParams(method);
1856                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1857                         if (isStructPresent(methParams, methPrmTypes)) {        // Treat struct differently
1858                                 String methodId = intDecl.getMethodId(method);
1859                                 print("public void ___");
1860                                 String helperMethod = methodId;
1861                                 if (uniqueMethodIds.contains(methodId))
1862                                         helperMethod = helperMethod + intDecl.getMethodNumId(method);
1863                                 else
1864                                         uniqueMethodIds.add(methodId);
1865                                 String retType = intDecl.getMethodType(method);
1866                                 print(helperMethod + "(");
1867                                 boolean begin = true;
1868                                 for (int i = 0; i < methParams.size(); i++) { // Print size variables
1869                                         String paramType = methPrmTypes.get(i);
1870                                         String param = methParams.get(i);
1871                                         String simpleType = getGenericType(paramType);
1872                                         if (isStructClass(simpleType)) {
1873                                                 if (!begin)     // Generate comma for not the beginning variable
1874                                                         print(", ");
1875                                                 else
1876                                                         begin = false;
1877                                                 int methodNumId = intDecl.getMethodNumId(method);
1878                                                 print("int struct" + methodNumId + "Size" + i);
1879                                         }
1880                                 }
1881                                 // Check if this is "void"
1882                                 if (retType.equals("void"))
1883                                         println(") {");
1884                                 else
1885                                         println(") throws IOException {");
1886                                 writeMethodHelperStructJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
1887                                 println("}\n");
1888                         } else {
1889                                 String methodId = intDecl.getMethodId(method);
1890                                 print("public void ___");
1891                                 String helperMethod = methodId;
1892                                 if (uniqueMethodIds.contains(methodId))
1893                                         helperMethod = helperMethod + intDecl.getMethodNumId(method);
1894                                 else
1895                                         uniqueMethodIds.add(methodId);
1896                                 // Check if this is "void"
1897                                 String retType = intDecl.getMethodType(method);
1898                                 if (retType.equals("void"))
1899                                         println(helperMethod + "() {");
1900                                 else
1901                                         println(helperMethod + "() throws IOException {");
1902                                 // Now, write the helper body of skeleton!
1903                                 writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses);
1904                                 println("}\n");
1905                         }
1906                 }
1907                 // Write method helper for structs
1908                 writeMethodHelperStructSetupJavaSkeleton(methods, intDecl);
1909         }
1910
1911
1912         /**
1913          * HELPER: writeMethodHelperStructSetupJavaSkeleton() writes the method helper of struct setup in skeleton class
1914          */
1915         private void writeMethodHelperStructSetupJavaSkeleton(Collection<String> methods,
1916                         InterfaceDecl intDecl) {
1917
1918                 // Use this set to handle two same methodIds
1919                 for (String method : methods) {
1920
1921                         List<String> methParams = intDecl.getMethodParams(method);
1922                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1923                         // Check for params with structs
1924                         for (int i = 0; i < methParams.size(); i++) {
1925                                 String paramType = methPrmTypes.get(i);
1926                                 String param = methParams.get(i);
1927                                 String simpleType = getGenericType(paramType);
1928                                 if (isStructClass(simpleType)) {
1929                                         int methodNumId = intDecl.getMethodNumId(method);
1930                                         print("public int ___");
1931                                         String helperMethod = methodNumId + "struct" + i;
1932                                         println(helperMethod + "() {");
1933                                         // Now, write the helper body of skeleton!
1934                                         println("byte[] localMethodBytes = methodBytes;");
1935                                         println("rmiComm.setGetMethodBytes();");
1936                                         println("Object[] paramObj = rmiComm.getMethodParams(new Class<?>[] { int.class }, new Class<?>[] { null }, localMethodBytes);");
1937                                         println("return (int) paramObj[0];");
1938                                         println("}\n");
1939                                 }
1940                         }
1941                 }
1942         }
1943
1944
1945         /**
1946          * HELPER: writeMethodHelperStructSetupJavaCallbackSkeleton() writes the method helper of struct setup in callback skeleton class
1947          */
1948         private void writeMethodHelperStructSetupJavaCallbackSkeleton(Collection<String> methods,
1949                         InterfaceDecl intDecl) {
1950
1951                 // Use this set to handle two same methodIds
1952                 for (String method : methods) {
1953
1954                         List<String> methParams = intDecl.getMethodParams(method);
1955                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1956                         // Check for params with structs
1957                         for (int i = 0; i < methParams.size(); i++) {
1958                                 String paramType = methPrmTypes.get(i);
1959                                 String param = methParams.get(i);
1960                                 String simpleType = getGenericType(paramType);
1961                                 if (isStructClass(simpleType)) {
1962                                         int methodNumId = intDecl.getMethodNumId(method);
1963                                         print("public int ___");
1964                                         String helperMethod = methodNumId + "struct" + i;
1965                                         println(helperMethod + "(IoTRMIObject rmiObj) {");
1966                                         // Now, write the helper body of skeleton!
1967                                         println("Object[] paramObj = rmiComm.getMethodParams(new Class<?>[] { int.class }, new Class<?>[] { null });");
1968                                         println("return (int) paramObj[0];");
1969                                         println("}\n");
1970                                 }
1971                         }
1972                 }
1973         }
1974
1975
1976         /**
1977          * HELPER: writeCountVarStructSkeleton() writes counter variable of struct for skeleton
1978          */
1979         private void writeCountVarStructSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
1980
1981                 // Use this set to handle two same methodIds
1982                 for (String method : methods) {
1983
1984                         List<String> methParams = intDecl.getMethodParams(method);
1985                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
1986                         // Check for params with structs
1987                         for (int i = 0; i < methParams.size(); i++) {
1988                                 String paramType = methPrmTypes.get(i);
1989                                 String param = methParams.get(i);
1990                                 String simpleType = getGenericType(paramType);
1991                                 if (isStructClass(simpleType)) {
1992                                         int methodNumId = intDecl.getMethodNumId(method);
1993                                         println("int struct" + methodNumId + "Size" + i + " = 0;");
1994                                 }
1995                         }
1996                 }
1997         }
1998
1999
2000         /**
2001          * HELPER: writeInputCountVarStructJavaSkeleton() writes input counter variable of struct for skeleton
2002          */
2003         private boolean writeInputCountVarStructJavaSkeleton(String method, InterfaceDecl intDecl) {
2004
2005                 List<String> methParams = intDecl.getMethodParams(method);
2006                 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2007                 boolean structExist = false;
2008                 boolean begin = true;
2009                 // Check for params with structs
2010                 for (int i = 0; i < methParams.size(); i++) {
2011                         String paramType = methPrmTypes.get(i);
2012                         String param = methParams.get(i);
2013                         String simpleType = getGenericType(paramType);
2014                         if (isStructClass(simpleType)) {
2015                                 structExist = true;
2016                                 if (!begin)
2017                                         print(", ");
2018                                 else
2019                                         begin = false;
2020                                 int methodNumId = intDecl.getMethodNumId(method);
2021                                 print("struct" + methodNumId + "Size" + i + "Final");
2022                         }
2023                 }
2024                 return structExist;
2025         }
2026
2027
2028         /**
2029          * HELPER: writeInputCountVarStructCplusSkeleton() writes input counter variable of struct for skeleton
2030          */
2031         private boolean writeInputCountVarStructCplusSkeleton(String method, InterfaceDecl intDecl) {
2032
2033                 List<String> methParams = intDecl.getMethodParams(method);
2034                 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2035                 boolean structExist = false;
2036                 boolean begin = true;
2037                 // Check for params with structs
2038                 for (int i = 0; i < methParams.size(); i++) {
2039                         String paramType = methPrmTypes.get(i);
2040                         String param = methParams.get(i);
2041                         String simpleType = getGenericType(paramType);
2042                         if (isStructClass(simpleType)) {
2043                                 structExist = true;
2044                                 if (!begin)
2045                                         print(", ");
2046                                 else
2047                                         begin = false;
2048                                 int methodNumId = intDecl.getMethodNumId(method);
2049                                 print("struct" + methodNumId + "Size" + i);
2050                         }
2051                 }
2052                 return structExist;
2053         }
2054
2055
2056         /**
2057          * HELPER: writeMethodCallStructJavaSkeleton() writes method call for wait invoke in skeleton
2058          */
2059         private void writeMethodCallStructJavaSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2060
2061                 // Use this set to handle two same methodIds
2062                 for (String method : methods) {
2063
2064                         List<String> methParams = intDecl.getMethodParams(method);
2065                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2066                         // Check for params with structs
2067                         for (int i = 0; i < methParams.size(); i++) {
2068                                 String paramType = methPrmTypes.get(i);
2069                                 String param = methParams.get(i);
2070                                 String simpleType = getGenericType(paramType);
2071                                 if (isStructClass(simpleType)) {
2072                                         int methodNumId = intDecl.getMethodNumId(method);
2073                                         print("case ");
2074                                         String helperMethod = methodNumId + "struct" + i;
2075                                         String tempVar = "struct" + methodNumId + "Size" + i;
2076                                         print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2077                                         print(tempVar + " = ___");
2078                                         println(helperMethod + "(); break;");
2079                                 }
2080                         }
2081                 }
2082         }
2083
2084
2085         /**
2086          * HELPER: writeMethodCallStructCplusSkeleton() writes method call for wait invoke in skeleton
2087          */
2088         private void writeMethodCallStructCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2089
2090                 // Use this set to handle two same methodIds
2091                 for (String method : methods) {
2092
2093                         List<String> methParams = intDecl.getMethodParams(method);
2094                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2095                         // Check for params with structs
2096                         for (int i = 0; i < methParams.size(); i++) {
2097                                 String paramType = methPrmTypes.get(i);
2098                                 String param = methParams.get(i);
2099                                 String simpleType = getGenericType(paramType);
2100                                 if (isStructClass(simpleType)) {
2101                                         int methodNumId = intDecl.getMethodNumId(method);
2102                                         print("case ");
2103                                         String helperMethod = methodNumId + "struct" + i;
2104                                         String tempVar = "struct" + methodNumId + "Size" + i;
2105                                         print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2106                                         print(tempVar + " = ___");
2107                                         println(helperMethod + "(skel); break;");
2108                                 }
2109                         }
2110                 }
2111         }
2112
2113
2114         /**
2115          * HELPER: writeMethodCallStructCallbackSkeleton() writes method call for wait invoke in skeleton
2116          */
2117         private void writeMethodCallStructCallbackSkeleton(Collection<String> methods, InterfaceDecl intDecl) {
2118
2119                 // Use this set to handle two same methodIds
2120                 for (String method : methods) {
2121
2122                         List<String> methParams = intDecl.getMethodParams(method);
2123                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2124                         // Check for params with structs
2125                         for (int i = 0; i < methParams.size(); i++) {
2126                                 String paramType = methPrmTypes.get(i);
2127                                 String param = methParams.get(i);
2128                                 String simpleType = getGenericType(paramType);
2129                                 if (isStructClass(simpleType)) {
2130                                         int methodNumId = intDecl.getMethodNumId(method);
2131                                         print("case ");
2132                                         String helperMethod = methodNumId + "struct" + i;
2133                                         String tempVar = "struct" + methodNumId + "Size" + i;
2134                                         print(intDecl.getHelperMethodNumId(helperMethod) + ": ");
2135                                         print(tempVar + " = ___");
2136                                         println(helperMethod + "(rmiObj); break;");
2137                                 }
2138                         }
2139                 }
2140         }
2141
2142
2143         /**
2144          * HELPER: writeJavaMethodPermission() writes permission checks in skeleton
2145          */
2146         private void writeJavaMethodPermission(String intface) {
2147
2148                 // Get all the different stubs
2149                 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
2150                 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
2151                         String newIntface = intMeth.getKey();
2152                         int newObjectId = getNewIntfaceObjectId(newIntface);
2153                         println("if (_objectId == objectId) {");
2154                         println("if (!set" + newObjectId + "Allowed.contains(methodId)) {");
2155                         println("throw new Error(\"Object with object Id: \" + _objectId + \"  is not allowed to access method: \" + methodId);");
2156                         println("}");
2157                         println("}");
2158                         println("else {");
2159                         println("continue;");
2160                         println("}");
2161                 }
2162         }
2163
2164
2165         /**
2166          * HELPER: writeFinalInputCountVarStructSkeleton() writes the final version of input counter variable of struct for skeleton
2167          */
2168         private boolean writeFinalInputCountVarStructSkeleton(String method, InterfaceDecl intDecl) {
2169
2170                 List<String> methParams = intDecl.getMethodParams(method);
2171                 List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2172                 boolean structExist = false;
2173                 boolean begin = true;
2174                 // Check for params with structs
2175                 for (int i = 0; i < methParams.size(); i++) {
2176                         String paramType = methPrmTypes.get(i);
2177                         String param = methParams.get(i);
2178                         String simpleType = getGenericType(paramType);
2179                         if (isStructClass(simpleType)) {
2180                                 structExist = true;
2181                                 int methodNumId = intDecl.getMethodNumId(method);
2182                                 println("final int struct" + methodNumId + "Size" + i +
2183                                         "Final = struct" + methodNumId + "Size" + i + ";");
2184                         }
2185                 }
2186                 return structExist;
2187         }
2188
2189
2190         /**
2191          * HELPER: writeJavaWaitRequestInvokeMethod() writes the main loop of the skeleton class
2192          */
2193         private void writeJavaWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl, String intface) {
2194
2195                 // Use this set to handle two same methodIds
2196                 Set<String> uniqueMethodIds = new HashSet<String>();
2197                 println("public void ___waitRequestInvokeMethod() throws IOException {");
2198                 // Write variables here if we have callbacks or enums or structs
2199                 writeCountVarStructSkeleton(methods, intDecl);
2200                 println("didAlreadyInitWaitInvoke.compareAndSet(false, true);");
2201                 println("while (true) {");
2202                 println("if (!methodReceived.get()) {");
2203                 println("continue;");
2204                 println("}");
2205                 println("methodBytes = rmiComm.getMethodBytes();");
2206                 println("methodReceived.set(false);");
2207                 println("int _objectId = IoTRMIComm.getObjectId(methodBytes);");
2208                 println("int methodId = IoTRMIComm.getMethodId(methodBytes);");
2209                 // Generate permission check
2210                 writeJavaMethodPermission(intface);
2211                 println("switch (methodId) {");
2212                 // Print methods and method Ids
2213                 for (String method : methods) {
2214                         String methodId = intDecl.getMethodId(method);
2215                         int methodNumId = intDecl.getMethodNumId(method);
2216                         println("case " + methodNumId + ":");
2217                         // Check for stuct counters
2218                         writeFinalInputCountVarStructSkeleton(method, intDecl);
2219                         println("new Thread() {");
2220                         println("public void run() {");
2221                         println("try {");
2222                         print("___");
2223                         String helperMethod = methodId;
2224                         if (uniqueMethodIds.contains(methodId))
2225                                 helperMethod = helperMethod + methodNumId;
2226                         else
2227                                 uniqueMethodIds.add(methodId);
2228                         print(helperMethod + "(");
2229                         writeInputCountVarStructJavaSkeleton(method, intDecl);
2230                         println(");");
2231                         println("}");
2232                         println("catch (Exception ex) {");
2233                         println("ex.printStackTrace();");
2234                         println("}");
2235                         println("}");
2236                         println("}.start();");
2237                         println("break;");
2238                 }
2239                 String method = "___initCallBack()";
2240                 writeMethodCallStructJavaSkeleton(methods, intDecl);
2241                 println("default: ");
2242                 println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");");
2243                 println("}");
2244                 println("}");
2245                 println("}\n");
2246         }
2247
2248
2249         /**
2250          * HELPER: writeReturnDidAlreadyInitWaitInvoke() writes the function to return didAlreadyInitWaitInvoke
2251          */
2252         private void writeReturnDidAlreadyInitWaitInvoke() {
2253
2254                 println("public boolean didAlreadyInitWaitInvoke() {");
2255                 println("return didAlreadyInitWaitInvoke.get();");
2256                 println("}\n");
2257         }
2258
2259
2260         /**
2261          * generateJavaSkeletonClass() generate skeletons based on the methods list in Java
2262          */
2263         public void generateJavaSkeletonClass() throws IOException {
2264
2265                 // Create a new directory
2266                 String path = createDirectories(dir, subdir);
2267                 for (String intface : mapIntfacePTH.keySet()) {
2268                         // Open a new file to write into
2269                         String newSkelClass = intface + "_Skeleton";
2270                         FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java");
2271                         pw = new PrintWriter(new BufferedWriter(fw));
2272                         // Pass in set of methods and get import classes
2273                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2274                         InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2275                         List<String> methods = intDecl.getMethods();
2276                         Set<String> importClasses = getImportClasses(methods, intDecl);
2277                         List<String> stdImportClasses = getStandardJavaImportClasses();
2278                         List<String> allImportClasses = getAllLibClasses(stdImportClasses, importClasses);
2279                         // Find out if there are callback objects
2280                         Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2281                         boolean callbackExist = !callbackClasses.isEmpty();
2282                         if(isCallbackClass(intface))
2283                                 println("package " + controllerClass + ";\n");
2284                         else
2285                                 println("package " + CODE_PREFIX + "." + mapInt2Drv.get(intface) + ";\n");
2286                         printImportStatements(allImportClasses);
2287                         println("\nimport " + INTERFACE_PACKAGE + ".*;\n");
2288                         // Write class header
2289                         println("public class " + newSkelClass  + " implements " + intface + " {\n");
2290                         // Write properties
2291                         writePropertiesJavaSkeleton(intface, intDecl);
2292                         // Write constructor
2293                         writeConstructorJavaSkeleton(newSkelClass, intface, intDecl, methods, callbackExist);
2294                         // Write constructor that is called when this object is a callback object
2295                         writeCallbackConstructorJavaSkeleton(newSkelClass, intface, intDecl, methods, callbackExist);
2296                         // Write function to return didAlreadyInitWaitInvoke
2297                         writeReturnDidAlreadyInitWaitInvoke();
2298                         // Write methods
2299                         writeMethodJavaSkeleton(methods, intDecl);
2300                         // Write method helper
2301                         writeMethodHelperJavaSkeleton(methods, intDecl, callbackClasses);
2302                         // Write waitRequestInvokeMethod() - main loop
2303                         writeJavaWaitRequestInvokeMethod(methods, intDecl, intface);
2304                         println("}");
2305                         pw.close();
2306                         System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".java...");
2307                 }
2308         }
2309
2310
2311 /*================================================================================
2312  *
2313  *              C++ generation
2314  *
2315  *================================================================================/
2316
2317         /**
2318          * HELPER: writeMethodCplusLocalInterface() writes the method of the local interface
2319          */
2320         private void writeMethodCplusLocalInterface(Collection<String> methods, InterfaceDecl intDecl) {
2321
2322                 for (String method : methods) {
2323
2324                         List<String> methParams = intDecl.getMethodParams(method);
2325                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2326                         print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2327                                 intDecl.getMethodId(method) + "(");
2328                         for (int i = 0; i < methParams.size(); i++) {
2329                                 // Check for params with driver class types and exchange it
2330                                 //              with its remote interface
2331                                 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
2332                                 paramType = checkAndGetCplusType(paramType);
2333                                 // Check for arrays - translate into vector in C++
2334                                 String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i));
2335                                 print(paramComplete);
2336                                 // Check if this is the last element (don't print a comma)
2337                                 if (i != methParams.size() - 1) {
2338                                         print(", ");
2339                                 }
2340                         }
2341                         println(") = 0;");
2342                 }
2343         }
2344
2345
2346         /**
2347          * HELPER: writeMethodCplusInterface() writes the method of the interface
2348          */
2349         private void writeMethodCplusInterface(Collection<String> methods, InterfaceDecl intDecl) {
2350
2351                 for (String method : methods) {
2352
2353                         List<String> methParams = intDecl.getMethodParams(method);
2354                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2355                         print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2356                                 intDecl.getMethodId(method) + "(");
2357                         for (int i = 0; i < methParams.size(); i++) {
2358                                 // Check for params with driver class types and exchange it
2359                                 //              with its remote interface
2360                                 String paramType = methPrmTypes.get(i);
2361                                 paramType = checkAndGetCplusType(paramType);
2362                                 // Check for arrays - translate into vector in C++
2363                                 String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i));
2364                                 print(paramComplete);
2365                                 // Check if this is the last element (don't print a comma)
2366                                 if (i != methParams.size() - 1) {
2367                                         print(", ");
2368                                 }
2369                         }
2370                         println(") = 0;");
2371                 }
2372         }
2373
2374
2375         /**
2376          * HELPER: generateEnumCplus() writes the enumeration declaration
2377          */
2378         public void generateEnumCplus() throws IOException {
2379
2380                 // Create a new directory
2381                 createDirectory(dir);
2382                 for (String intface : mapIntfacePTH.keySet()) {
2383                         // Get the right StructDecl
2384                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2385                         EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
2386                         Set<String> enumTypes = enumDecl.getEnumDeclarations();
2387                         // Iterate over enum declarations
2388                         for (String enType : enumTypes) {
2389                                 // Open a new file to write into
2390                                 FileWriter fw = new FileWriter(dir + "/" + enType + ".hpp");
2391                                 pw = new PrintWriter(new BufferedWriter(fw));
2392                                 // Write file headers
2393                                 println("#ifndef _" + enType.toUpperCase() + "_HPP__");
2394                                 println("#define _" + enType.toUpperCase() + "_HPP__");
2395                                 println("enum " + enType + " {");
2396                                 List<String> enumMembers = enumDecl.getMembers(enType);
2397                                 for (int i = 0; i < enumMembers.size(); i++) {
2398
2399                                         String member = enumMembers.get(i);
2400                                         print(member);
2401                                         // Check if this is the last element (don't print a comma)
2402                                         if (i != enumMembers.size() - 1)
2403                                                 println(",");
2404                                         else
2405                                                 println("");
2406                                 }
2407                                 println("};\n");
2408                                 println("#endif");
2409                                 pw.close();
2410                                 System.out.println("IoTCompiler: Generated enum " + enType + ".hpp...");
2411                         }
2412                 }
2413         }
2414
2415
2416         /**
2417          * HELPER: generateStructCplus() writes the struct declaration
2418          */
2419         public void generateStructCplus() throws IOException {
2420
2421                 // Create a new directory
2422                 createDirectory(dir);
2423                 for (String intface : mapIntfacePTH.keySet()) {
2424                         // Get the right StructDecl
2425                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2426                         StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
2427                         List<String> structTypes = structDecl.getStructTypes();
2428                         // Iterate over enum declarations
2429                         for (String stType : structTypes) {
2430                                 // Open a new file to write into
2431                                 FileWriter fw = new FileWriter(dir + "/" + stType + ".hpp");
2432                                 pw = new PrintWriter(new BufferedWriter(fw));
2433                                 // Write file headers
2434                                 println("#ifndef _" + stType.toUpperCase() + "_HPP__");
2435                                 println("#define _" + stType.toUpperCase() + "_HPP__");
2436                                 println("using namespace std;");
2437                                 println("struct " + stType + " {");
2438                                 List<String> structMemberTypes = structDecl.getMemberTypes(stType);
2439                                 List<String> structMembers = structDecl.getMembers(stType);
2440                                 for (int i = 0; i < structMembers.size(); i++) {
2441
2442                                         String memberType = structMemberTypes.get(i);
2443                                         String member = structMembers.get(i);
2444                                         String structTypeC = checkAndGetCplusType(memberType);
2445                                         String structComplete = checkAndGetCplusArray(structTypeC, member);
2446                                         println(structComplete + ";");
2447                                 }
2448                                 println("};\n");
2449                                 println("#endif");
2450                                 pw.close();
2451                                 System.out.println("IoTCompiler: Generated struct " + stType + ".hpp...");
2452                         }
2453                 }
2454         }
2455
2456
2457         /**
2458          * generateCplusLocalInterfaces() writes the local interfaces and provides type-checking.
2459          * <p>
2460          * It needs to rewrite and exchange USERDEFINED types in input parameters of stub
2461          * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording.
2462          * The local interface has to be the input parameter for the stub and the stub
2463          * interface has to be the input parameter for the local class.
2464          */
2465         public void generateCplusLocalInterfaces() throws IOException {
2466
2467                 // Create a new directory
2468                 createDirectory(dir);
2469                 for (String intface : mapIntfacePTH.keySet()) {
2470                         // Open a new file to write into
2471                         FileWriter fw = new FileWriter(dir + "/" + intface + ".hpp");
2472                         pw = new PrintWriter(new BufferedWriter(fw));
2473                         // Write file headers
2474                         println("#ifndef _" + intface.toUpperCase() + "_HPP__");
2475                         println("#define _" + intface.toUpperCase() + "_HPP__");
2476                         println("#include <iostream>");
2477                         // Pass in set of methods and get include classes
2478                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2479                         InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2480                         List<String> methods = intDecl.getMethods();
2481                         Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, true);
2482                         printIncludeStatements(includeClasses); println("");
2483                         println("using namespace std;\n");
2484                         Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2485                         if (!intface.equals(mainClass)) // Forward declare if not main class
2486                                 writeMethodCplusInterfaceForwardDecl(methods, intDecl, callbackClasses, true);
2487                         println("class " + intface); println("{");
2488                         println("public:");
2489                         // Write methods
2490                         writeMethodCplusLocalInterface(methods, intDecl);
2491                         println("};");
2492                         println("#endif");
2493                         pw.close();
2494                         System.out.println("IoTCompiler: Generated local interface " + intface + ".hpp...");
2495                 }
2496         }
2497
2498
2499         /**
2500          * HELPER: writeMethodCplusInterfaceForwardDecl() writes the forward declaration of the interface
2501          */
2502         private void writeMethodCplusInterfaceForwardDecl(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses, boolean needNewIntface) {
2503
2504                 Set<String> isDefined = new HashSet<String>();
2505                 for (String method : methods) {
2506
2507                         List<String> methParams = intDecl.getMethodParams(method);
2508                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2509                         for (int i = 0; i < methParams.size(); i++) {
2510                                 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2511                                 // Check if this has callback object
2512                                 if (callbackClasses.contains(paramType)) {
2513                                         if (!isDefined.contains(paramType)) {
2514                                                 if (needNewIntface)
2515                                                         println("class " + getStubInterface(paramType) + ";\n");
2516                                                 else
2517                                                         println("class " + paramType + ";\n");
2518                                                 isDefined.add(paramType);
2519                                         }
2520                                 }
2521                         }
2522                 }
2523         }
2524
2525
2526         /**
2527          * generateCPlusInterfaces() generate stub interfaces based on the methods list in C++
2528          * <p>
2529          * For C++ we use virtual classe as interface
2530          */
2531         public void generateCPlusInterfaces() throws IOException {
2532
2533                 // Create a new directory
2534                 String path = createDirectories(dir, subdir);
2535                 for (String intface : mapIntfacePTH.keySet()) {
2536
2537                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
2538                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
2539
2540                                 // Open a new file to write into
2541                                 String newIntface = intMeth.getKey();
2542                                 FileWriter fw = new FileWriter(path + "/" + newIntface + ".hpp");
2543                                 pw = new PrintWriter(new BufferedWriter(fw));
2544                                 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
2545                                 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
2546                                 // Write file headers
2547                                 println("#ifndef _" + newIntface.toUpperCase() + "_HPP__");
2548                                 println("#define _" + newIntface.toUpperCase() + "_HPP__");
2549                                 println("#include <iostream>");
2550                                 updateIntfaceObjIdMap(intface, newIntface);
2551                                 // Pass in set of methods and get import classes
2552                                 Set<String> methods = intMeth.getValue();
2553                                 Set<String> includeClasses = getIncludeClasses(methods, intDecl, intface, false);
2554                                 printIncludeStatements(includeClasses); println("");
2555                                 println("using namespace std;\n");
2556                                 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
2557                                 writeMethodCplusInterfaceForwardDecl(methods, intDecl, callbackClasses, false);
2558                                 println("class " + newIntface);
2559                                 println("{");
2560                                 println("public:");
2561                                 // Write methods
2562                                 writeMethodCplusInterface(methods, intDecl);
2563                                 println("};");
2564                                 println("#endif");
2565                                 pw.close();
2566                                 System.out.println("IoTCompiler: Generated interface " + newIntface + ".hpp...");
2567                         }
2568                 }
2569         }
2570
2571
2572         /**
2573          * HELPER: writeMethodDeclCplusStub() writes the method declarations of the stub
2574          */
2575         private void writeMethodDeclCplusStub(Collection<String> methods, InterfaceDecl intDecl) {
2576
2577                 for (String method : methods) {
2578
2579                         List<String> methParams = intDecl.getMethodParams(method);
2580                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2581                         print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " +
2582                                 intDecl.getMethodId(method) + "(");
2583                         for (int i = 0; i < methParams.size(); i++) {
2584
2585                                 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2586                                 String methPrmType = checkAndGetCplusType(methPrmTypes.get(i));
2587                                 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
2588                                 print(methParamComplete);
2589                                 // Check if this is the last element (don't print a comma)
2590                                 if (i != methParams.size() - 1) {
2591                                         print(", ");
2592                                 }
2593                         }
2594                         println(");");
2595                 }
2596         }
2597
2598
2599         /**
2600          * HELPER: writeMethodCplusStub() writes the methods of the stub
2601          */
2602         private void writeMethodCplusStub(Collection<String> methods, InterfaceDecl intDecl, Set<String> callbackClasses, String newStubClass) {
2603
2604                 for (String method : methods) {
2605
2606                         List<String> methParams = intDecl.getMethodParams(method);
2607                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
2608                         // Print the mutex lock first
2609                         int methodNumId = intDecl.getMethodNumId(method);
2610                         String mutexVar = "mtx" + newStubClass + "MethodExec" + methodNumId;
2611                         println("mutex " + mutexVar + ";");
2612                         print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " + newStubClass + "::" +
2613                                 intDecl.getMethodId(method) + "(");
2614                         boolean isCallbackMethod = false;
2615                         Set<String> callbackType = new HashSet<String>();
2616                         for (int i = 0; i < methParams.size(); i++) {
2617
2618                                 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
2619                                 // Check if this has callback object
2620                                 if (callbackClasses.contains(paramType)) {
2621                                         isCallbackMethod = true;
2622                                         //callbackType = paramType;
2623                                         callbackType.add(paramType);
2624                                         // Even if there're 2 callback arguments, we expect them to be of the same interface
2625                                 }
2626                                 String methPrmType = checkAndGetCplusType(methPrmTypes.get(i));
2627                                 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
2628                                 print(methParamComplete);
2629                                 // Check if this is the last element (don't print a comma)
2630                                 if (i != methParams.size() - 1) {
2631                                         print(", ");
2632                                 }
2633                         }
2634                         println(") { ");
2635                         println("lock_guard<mutex> guard(" + mutexVar + ");");
2636                         if (isCallbackMethod)
2637                                 writeCallbackMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackType);
2638                         writeStdMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackType, isCallbackMethod);
2639                         println("}\n");
2640
2641                 }
2642         }
2643
2644
2645         /**
2646          * HELPER: writeCallbackInstantiationMethodBodyCplusStub() writes the callback object instantiation in the method of the stub class
2647          */
2648         private void writeCallbackInstantiationMethodBodyCplusStub(String paramIdent, String callbackType, int counter) {
2649
2650                 println("auto it" + counter + " = IoTRMIUtil::mapSkel->find(" + paramIdent + ");");
2651                 println("if (it" + counter + " == IoTRMIUtil::mapSkel->end()) {");
2652                 println("int newObjIdSent = rmiComm->getObjectIdCounter();");
2653                 println("objIdSent" + counter + ".push_back(newObjIdSent);");
2654                 println("rmiComm->decrementObjectIdCounter();");
2655                 println(callbackType + "_Skeleton* skel" + counter + " = new " + callbackType + "_Skeleton(" + paramIdent + ", rmiComm, newObjIdSent);");
2656                 println("IoTRMIUtil::mapSkel->insert(make_pair(" + paramIdent + ", skel" + counter + "));");
2657                 println("IoTRMIUtil::mapSkelId->insert(make_pair(" + paramIdent + ", newObjIdSent));");
2658                 println("thread th" + counter + " (&" + callbackType + "_Skeleton::___waitRequestInvokeMethod, skel" + counter +
2659                         ", skel" + counter +");");
2660                 println("th" + counter + ".detach();");
2661                 println("while(!skel" + counter + "->didInitWaitInvoke());");
2662                 println("}");
2663                 println("else");
2664                 println("{");
2665                 println("auto itId = IoTRMIUtil::mapSkelId->find(" + paramIdent + ");");
2666                 println("objIdSent" + counter + ".push_back(itId->second);");
2667                 println("}");
2668         }
2669
2670
2671         /**
2672          * HELPER: writeCallbackMethodBodyCplusStub() writes the callback method of the stub class
2673          */
2674         private void writeCallbackMethodBodyCplusStub(InterfaceDecl intDecl, List<String> methParams,
2675                         List<String> methPrmTypes, String method, Set<String> callbackType) {
2676
2677                 // Check if this is single object, array, or list of objects
2678                 boolean isArrayOrList = false;
2679                 String callbackParam = null;
2680                 for (int i = 0; i < methParams.size(); i++) {
2681                         String paramType = methPrmTypes.get(i);
2682                         if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2683                                 println("vector<int> objIdSent" + i + ";");
2684                                 String param = methParams.get(i);
2685                                 if (isArrayOrList(paramType, param)) {  // Generate loop
2686                                         println("for (" + getGenericType(paramType) + "* cb : " + getSimpleIdentifier(param) + ") {");
2687                                         writeCallbackInstantiationMethodBodyCplusStub("cb", returnGenericCallbackType(paramType), i);
2688                                         isArrayOrList = true;
2689                                         callbackParam = getSimpleIdentifier(param);
2690                                 } else {
2691                                         writeCallbackInstantiationMethodBodyCplusStub(getSimpleIdentifier(param), returnGenericCallbackType(paramType), i);
2692                                 }
2693                                 if (isArrayOrList)
2694                                         println("}");
2695                                 println("vector<int> ___paramCB" + i + " = objIdSent" + i + ";");
2696                         }
2697                 }
2698         }
2699
2700
2701         /**
2702          * HELPER: checkAndWriteEnumTypeCplusStub() writes the enum type (convert from enum to int)
2703          */
2704         private void checkAndWriteEnumTypeCplusStub(List<String> methParams, List<String> methPrmTypes) {
2705
2706                 // Iterate and find enum declarations
2707                 for (int i = 0; i < methParams.size(); i++) {
2708                         String paramType = methPrmTypes.get(i);
2709                         String param = methParams.get(i);
2710                         if (isEnumClass(getGenericType(paramType))) {
2711                         // Check if this is enum type
2712                                 if (isArrayOrList(paramType, param)) {  // An array or vector
2713                                         println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();");
2714                                         println("vector<int> paramEnum" + i + "(len" + i + ");");
2715                                         println("for (int i = 0; i < len" + i + "; i++) {");
2716                                         println("paramEnum" + i + "[i] = (int) " + getSimpleIdentifier(param) + "[i];");
2717                                         println("}");
2718                                 } else {        // Just one element
2719                                         println("vector<int> paramEnum" + i + "(1);");
2720                                         println("paramEnum" + i + "[0] = (int) " + param + ";");
2721                                 }
2722                         }
2723                 }
2724         }
2725
2726
2727         /**
2728          * HELPER: checkAndWriteEnumRetTypeCplusStub() writes the enum return type (convert from enum to int)
2729          */
2730         private void checkAndWriteEnumRetTypeCplusStub(String retType, String method, InterfaceDecl intDecl) {
2731
2732                 // Strips off array "[]" for return type
2733                 String pureType = getSimpleArrayType(getGenericType(retType));
2734                 // Take the inner type of generic
2735                 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
2736                         pureType = getGenericType(retType);
2737                 if (isEnumClass(pureType)) {
2738                 // Check if this is enum type
2739                         println("vector<int> retEnumInt;");
2740                         println("void* retObj = &retEnumInt;");
2741                         println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);");
2742                         writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getReturnValue(retType, retObj);");
2743                         if (isArrayOrList(retType, retType)) {  // An array or vector
2744                                 println("int retLen = retEnumInt.size();");
2745                                 println("vector<" + pureType + "> retVal(retLen);");
2746                                 println("for (int i = 0; i < retLen; i++) {");
2747                                 println("retVal[i] = (" + pureType + ") retEnumInt[i];");
2748                                 println("}");
2749                         } else {        // Just one element
2750                                 println(pureType + " retVal = (" + pureType + ") retEnumInt[0];");
2751                         }
2752                         println("return retVal;");
2753                 }
2754         }
2755
2756
2757         /**
2758          * HELPER: checkAndWriteStructSetupCplusStub() writes the struct type setup
2759          */
2760         private void checkAndWriteStructSetupCplusStub(List<String> methParams, List<String> methPrmTypes,
2761                         InterfaceDecl intDecl, String method) {
2762
2763                 // Iterate and find struct declarations
2764                 for (int i = 0; i < methParams.size(); i++) {
2765                         String paramType = methPrmTypes.get(i);
2766                         String param = methParams.get(i);
2767                         String simpleType = getGenericType(paramType);
2768                         if (isStructClass(simpleType)) {
2769                         // Check if this is enum type
2770                                 println("int numParam" + i + " = 1;");
2771                                 int methodNumId = intDecl.getMethodNumId(method);
2772                                 String helperMethod = methodNumId + "struct" + i;
2773                                 println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";");
2774                                 //println("string retTypeStruct" + i + " = \"void\";");
2775                                 println("string paramClsStruct" + i + "[] = { \"int\" };");
2776                                 print("int structLen" + i + " = ");
2777                                 if (isArrayOrList(paramType, param)) {  // An array
2778                                         println(getSimpleArrayType(param) + ".size();");
2779                                 } else {        // Just one element
2780                                         println("1;");
2781                                 }
2782                                 println("void* paramObjStruct" + i + "[] = { &structLen" + i + " };");
2783                                 println("rmiComm->remoteCall(objectId, methodIdStruct" + i +
2784                                                 ", paramClsStruct" + i + ", paramObjStruct" + i +
2785                                                 ", numParam" + i + ");\n");
2786                         }
2787                 }
2788         }
2789
2790
2791         /**
2792          * HELPER: writeLengthStructParamClassCplusStub() writes lengths of params
2793          */
2794         private void writeLengthStructParamClassCplusStub(List<String> methParams, List<String> methPrmTypes) {
2795
2796                 // Iterate and find struct declarations - count number of params
2797                 for (int i = 0; i < methParams.size(); i++) {
2798                         String paramType = methPrmTypes.get(i);
2799                         String param = methParams.get(i);
2800                         String simpleType = getGenericType(paramType);
2801                         if (isStructClass(simpleType)) {
2802                                 int members = getNumOfMembers(simpleType);
2803                                 if (isArrayOrList(paramType, param)) {  // An array or list
2804                                         String structLen = getSimpleIdentifier(param) + ".size()";
2805                                         print(members + "*" + structLen);
2806                                 } else
2807                                         print(Integer.toString(members));
2808                         } else
2809                                 print("1");
2810                         if (i != methParams.size() - 1) {
2811                                 print("+");
2812                         }
2813                 }
2814         }
2815
2816
2817         /**
2818          * HELPER: writeStructMembersCplusStub() writes member parameters of struct
2819          */
2820         private void writeStructMembersCplusStub(String simpleType, String paramType, String param) {
2821
2822                 // Get the struct declaration for this struct and generate initialization code
2823                 StructDecl structDecl = getStructDecl(simpleType);
2824                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2825                 List<String> members = structDecl.getMembers(simpleType);
2826                 if (isArrayOrList(paramType, param)) {  // An array or list
2827                         println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {");
2828                 }
2829                 if (isArrayOrList(paramType, param)) {  // An array or list
2830                         for (int i = 0; i < members.size(); i++) {
2831                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2832                                 println("paramCls[pos] = \"" + prmTypeC + "\";");
2833                                 print("paramObj[pos++] = &" + getSimpleIdentifier(param) + "[i].");
2834                                 print(getSimpleIdentifier(members.get(i)));
2835                                 println(";");
2836                         }
2837                         println("}");
2838                 } else {        // Just one struct element
2839                         for (int i = 0; i < members.size(); i++) {
2840                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2841                                 println("paramCls[pos] = \"" + prmTypeC + "\";");
2842                                 print("paramObj[pos++] = &" + param + ".");
2843                                 print(getSimpleIdentifier(members.get(i)));
2844                                 println(";");
2845                         }
2846                 }
2847         }
2848
2849
2850         /**
2851          * HELPER: writeStructParamClassCplusStub() writes member parameters of struct
2852          */
2853         private void writeStructParamClassCplusStub(List<String> methParams, List<String> methPrmTypes, Set<String> callbackType) {
2854
2855                 print("int numParam = ");
2856                 writeLengthStructParamClassCplusStub(methParams, methPrmTypes);
2857                 println(";");
2858                 println("void* paramObj[numParam];");
2859                 println("string paramCls[numParam];");
2860                 println("int pos = 0;");
2861                 // Iterate again over the parameters
2862                 for (int i = 0; i < methParams.size(); i++) {
2863                         String paramType = methPrmTypes.get(i);
2864                         String param = methParams.get(i);
2865                         String simpleType = getGenericType(paramType);
2866                         if (isStructClass(simpleType)) {
2867                                 writeStructMembersCplusStub(simpleType, paramType, param);
2868                         } else if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
2869                                 println("paramCls[pos] = \"int\";");
2870                                 println("paramObj[pos++] = &___paramCB" + i + ";");
2871                         } else {
2872                                 String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
2873                                 println("paramCls[pos] = \"" + prmTypeC + "\";");
2874                                 print("paramObj[pos++] = &");
2875                                 print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
2876                                 println(";");
2877                         }
2878                 }
2879
2880         }
2881
2882
2883         /**
2884          * HELPER: writeStructRetMembersCplusStub() writes member parameters of struct for return statement
2885          */
2886         private void writeStructRetMembersCplusStub(String simpleType, String retType) {
2887
2888                 // Get the struct declaration for this struct and generate initialization code
2889                 StructDecl structDecl = getStructDecl(simpleType);
2890                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2891                 List<String> members = structDecl.getMembers(simpleType);
2892                 if (isArrayOrList(retType, retType)) {  // An array or list
2893                         println("for(int i = 0; i < retLen; i++) {");
2894                 }
2895                 if (isArrayOrList(retType, retType)) {  // An array or list
2896                         for (int i = 0; i < members.size(); i++) {
2897                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
2898                                 print("structRet[i]." + getSimpleIdentifier(members.get(i)));
2899                                 println(" = retParam" + i + "[i];");
2900                         }
2901                         println("}");
2902                 } else {        // Just one struct element
2903                         for (int i = 0; i < members.size(); i++) {
2904                                 String prmType = checkAndGetArray(memTypes.get(i), members.get(i));
2905                                 print("structRet." + getSimpleIdentifier(members.get(i)));
2906                                 println(" = retParam" + i + ";");
2907                         }
2908                 }
2909                 println("return structRet;");
2910         }
2911
2912
2913         /**
2914          * HELPER: writeStructReturnCplusStub() writes member parameters of struct for return statement
2915          */
2916         private void writeStructReturnCplusStub(String simpleType, String retType, String method, InterfaceDecl intDecl) {
2917
2918                 // Minimum retLen is 1 if this is a single struct object
2919                 println("int retLen = 0;");
2920                 println("void* retLenObj = { &retLen };");
2921                 // Handle the returned struct!!!
2922                 println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);");
2923                 writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getReturnValue(retType, retLenObj);");
2924                 int numMem = getNumOfMembers(simpleType);
2925                 println("int numRet = " + numMem + "*retLen;");
2926                 println("string retCls[numRet];");
2927                 println("void* retObj[numRet];");
2928                 StructDecl structDecl = getStructDecl(simpleType);
2929                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
2930                 List<String> members = structDecl.getMembers(simpleType);
2931                 // Set up variables
2932                 if (isArrayOrList(retType, retType)) {  // An array or list
2933                         for (int i = 0; i < members.size(); i++) {
2934                                 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
2935                                 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
2936                                 println(getSimpleType(getEnumType(prmType)) + " retParam" + i + "[retLen];");
2937                         }
2938                 } else {        // Just one struct element
2939                         for (int i = 0; i < members.size(); i++) {
2940                                 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
2941                                 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
2942                                 println(getSimpleType(getEnumType(prmType)) + " retParam" + i + ";");
2943                         }
2944                 }
2945                 println("int retPos = 0;");
2946                 // Get the struct declaration for this struct and generate initialization code
2947                 if (isArrayOrList(retType, retType)) {  // An array or list
2948                         println("for(int i = 0; i < retLen; i++) {");
2949                         for (int i = 0; i < members.size(); i++) {
2950                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2951                                 println("retCls[retPos] = \"" + prmTypeC + "\";");
2952                                 println("retObj[retPos++] = &retParam" + i + "[i];");
2953                         }
2954                         println("}");
2955                 } else {        // Just one struct element
2956                         for (int i = 0; i < members.size(); i++) {
2957                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
2958                                 println("retCls[retPos] = \"" + prmTypeC + "\";");
2959                                 println("retObj[retPos++] = &retParam" + i + ";");
2960                         }
2961                 }
2962                 writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getStructObjects(retCls, numRet, retObj);");
2963                 if (isArrayOrList(retType, retType)) {  // An array or list
2964                         println("vector<" + simpleType + "> structRet(retLen);");
2965                 } else
2966                         println(simpleType + " structRet;");
2967                 writeStructRetMembersCplusStub(simpleType, retType);
2968         }
2969
2970
2971         /**
2972          * HELPER: writeWaitForReturnValueCplus() writes the synchronization part for return values
2973          */
2974         private void writeWaitForReturnValueCplus(String method, InterfaceDecl intDecl, String getReturnValue) {
2975
2976                 println("// Waiting for return value");
2977                 int methodNumId = intDecl.getMethodNumId(method);
2978                 println("while (!retValueReceived" + methodNumId + ");");
2979                 println(getReturnValue);
2980                 println("retValueReceived" + methodNumId + " = false;");
2981                 println("didGetReturnBytes.exchange(true);\n");
2982         }
2983
2984
2985         /**
2986          * HELPER: writeStdMethodBodyCplusStub() writes the standard method body in the stub class
2987          */
2988         private void writeStdMethodBodyCplusStub(InterfaceDecl intDecl, List<String> methParams,
2989                         List<String> methPrmTypes, String method, Set<String> callbackType, boolean isCallbackMethod) {
2990
2991                 checkAndWriteStructSetupCplusStub(methParams, methPrmTypes, intDecl, method);
2992                 println("int methodId = " + intDecl.getMethodNumId(method) + ";");
2993                 String retType = intDecl.getMethodType(method);
2994                 println("string retType = \"" + checkAndGetCplusRetClsType(getStructType(getEnumType(retType))) + "\";");
2995                 checkAndWriteEnumTypeCplusStub(methParams, methPrmTypes);
2996                 // Generate array of parameter types
2997                 if (isStructPresent(methParams, methPrmTypes)) {
2998                         writeStructParamClassCplusStub(methParams, methPrmTypes, callbackType);
2999                 } else {
3000                         println("int numParam = " + methParams.size() + ";");
3001                         print("string paramCls[] = { ");
3002                         for (int i = 0; i < methParams.size(); i++) {
3003                                 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3004                                 if (checkCallbackType(paramType, callbackType)) {
3005                                         print("\"int*\"");
3006                                 } else {
3007                                         String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3008                                         print("\"" + paramTypeC + "\"");
3009                                 }
3010                                 // Check if this is the last element (don't print a comma)
3011                                 if (i != methParams.size() - 1) {
3012                                         print(", ");
3013                                 }
3014                         }
3015                         println(" };");
3016                         // Generate array of parameter objects
3017                         print("void* paramObj[] = { ");
3018                         for (int i = 0; i < methParams.size(); i++) {
3019                                 String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3020                                 if (checkCallbackType(paramType, callbackType)) // Check if this has callback object
3021                                         print("&___paramCB" + i);
3022                                 else
3023                                         print("&" + getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i));
3024                                 // Check if this is the last element (don't print a comma)
3025                                 if (i != methParams.size() - 1) {
3026                                         print(", ");
3027                                 }
3028                         }
3029                         println(" };");
3030                 }
3031                 // Check if this is "void"
3032                 if (retType.equals("void")) {
3033                         println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);");
3034                 } else { // We do have a return value
3035                         // Generate array of parameter types
3036                         if (isStructClass(getGenericType(getSimpleArrayType(retType)))) {
3037                                 writeStructReturnCplusStub(getGenericType(getSimpleArrayType(retType)), retType, method, intDecl);
3038                         } else {
3039                         // Check if the return value NONPRIMITIVES
3040                                 if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) {
3041                                         checkAndWriteEnumRetTypeCplusStub(retType, method, intDecl);
3042                                 } else {
3043                                         //if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
3044                                         if (isArrayOrList(retType,retType))
3045                                                 println(checkAndGetCplusType(retType) + " retVal;");
3046                                         else {
3047                                                 println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";");
3048                                         }
3049                                         println("void* retObj = &retVal;");
3050                                         println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);");
3051                                         writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getReturnValue(retType, retObj);");
3052                                         println("return retVal;");
3053                                 }
3054                         }
3055                 }
3056         }
3057
3058
3059         /**
3060          * HELPER: writePropertiesCplusPermission() writes the properties of the stub class
3061          */
3062         private void writePropertiesCplusPermission(String intface) {
3063
3064                 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3065                 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3066                         String newIntface = intMeth.getKey();
3067                         int newObjectId = getNewIntfaceObjectId(newIntface);
3068                         println("static set<int> set" + newObjectId + "Allowed;");
3069                 }
3070         }
3071
3072         /**
3073          * HELPER: writePropertiesCplusStub() writes the properties of the stub class
3074          */
3075         private void writePropertiesCplusStub(String intface, String newIntface, boolean callbackExist,
3076                         Set<String> callbackClasses, Set<String> methods, InterfaceDecl intDecl) {
3077
3078                 println("IoTRMIComm *rmiComm;");
3079                 // Get the object Id
3080                 Integer objId = mapIntfaceObjId.get(intface);
3081                 println("int objectId = " + objId + ";");
3082                 println("// Synchronization variables");
3083                 for (String method : methods) {
3084                         // Generate AtomicBooleans for methods that have return values
3085                         String returnType = intDecl.getMethodType(method);
3086                         int methodNumId = intDecl.getMethodNumId(method);
3087                         if (!returnType.equals("void")) {
3088                                 println("bool retValueReceived" + methodNumId + " = false;");
3089                         }
3090                 }
3091                 println("\n");
3092         }
3093
3094
3095         /**
3096          * HELPER: writeConstructorCplusStub() writes the constructor of the stub class
3097          */
3098         private void writeConstructorCplusStub(String newStubClass, boolean callbackExist,
3099                         Set<String> callbackClasses, Set<String> methods, InterfaceDecl intDecl) {
3100
3101                 println(newStubClass + "::" + newStubClass +
3102                         "(int _portSend, int _portRecv, const char* _skeletonAddress, int _rev, bool* _bResult) {");
3103                 println("rmiComm = new IoTRMICommClient(_portSend, _portRecv, _skeletonAddress, _rev, _bResult);");
3104                 // Register the AtomicBoolean variables
3105                 for (String method : methods) {
3106                         // Generate AtomicBooleans for methods that have return values
3107                         String returnType = intDecl.getMethodType(method);
3108                         int methodNumId = intDecl.getMethodNumId(method);
3109                         if (!returnType.equals("void")) {
3110                                 println("rmiComm->registerStub(objectId, " + methodNumId + ", &retValueReceived" + methodNumId + ");");
3111                         }
3112                 }
3113                 println("IoTRMIUtil::mapStub->insert(make_pair(objectId, this));");
3114                 println("}\n");
3115         }
3116
3117
3118         /**
3119          * HELPER: writeCallbackConstructorCplusStub() writes the callback constructor of the stub class
3120          */
3121         private void writeCallbackConstructorCplusStub(String newStubClass, boolean callbackExist,
3122                         Set<String> callbackClasses, Set<String> methods, InterfaceDecl intDecl) {
3123
3124                 println(newStubClass + "::" + newStubClass + "(IoTRMIComm* _rmiComm, int _objectId) {");
3125                 println("rmiComm = _rmiComm;");
3126                 println("objectId = _objectId;");
3127                 // Register the AtomicBoolean variables
3128                 for (String method : methods) {
3129                         // Generate AtomicBooleans for methods that have return values
3130                         String returnType = intDecl.getMethodType(method);
3131                         int methodNumId = intDecl.getMethodNumId(method);
3132                         if (!returnType.equals("void")) {
3133                                 println("rmiComm->registerStub(objectId, " + methodNumId + ", &retValueReceived" + methodNumId + ");");
3134                         }
3135                 }
3136                 println("}\n");
3137         }
3138
3139
3140         /**
3141          * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class
3142          */
3143         private void writeDeconstructorCplusStub(String newStubClass, boolean callbackExist, Set<String> callbackClasses) {
3144
3145                 println(newStubClass + "::~" + newStubClass + "() {");
3146                 println("if (rmiComm != NULL) {");
3147                 println("delete rmiComm;");
3148                 println("rmiComm = NULL;");
3149                 println("}");
3150                 println("}");
3151                 println("");
3152         }
3153
3154
3155         /**
3156          * generateCPlusStubClassesHpp() generate stubs based on the methods list in C++ (.hpp file)
3157          */
3158         public void generateCPlusStubClassesHpp() throws IOException {
3159
3160                 // Create a new directory
3161                 String path = createDirectories(dir, subdir);
3162                 for (String intface : mapIntfacePTH.keySet()) {
3163
3164                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3165                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3166                                 // Open a new file to write into
3167                                 String newIntface = intMeth.getKey();
3168                                 String newStubClass = newIntface + "_Stub";
3169                                 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp");
3170                                 pw = new PrintWriter(new BufferedWriter(fw));
3171                                 // Write file headers
3172                                 println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__");
3173                                 println("#define _" + newStubClass.toUpperCase() + "_HPP__");
3174                                 println("#include <iostream>");
3175                                 // Find out if there are callback objects
3176                                 Set<String> methods = intMeth.getValue();
3177                                 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
3178                                 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
3179                                 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
3180                                 boolean callbackExist = !callbackClasses.isEmpty();
3181                                 println("#include <thread>");
3182                                 println("#include <mutex>");
3183                                 List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
3184                                 printIncludeStatements(stdIncludeClasses); println("");
3185                                 println("#include \"" + newIntface + ".hpp\""); println("");
3186                                 println("using namespace std;"); println("");
3187                                 println("class " + newStubClass + " : public " + newIntface); println("{");
3188                                 println("private:\n");
3189                                 writePropertiesCplusStub(intface, newIntface, callbackExist, callbackClasses, methods, intDecl);
3190                                 println("public:\n");
3191                                 // Add default constructor and destructor
3192                                 println(newStubClass + "();");
3193                                 // Declarations
3194                                 println(newStubClass + "(int _portSend, int _portRecv, const char* _skeletonAddress, int _rev, bool* _bResult);");
3195                                 println(newStubClass + "(IoTRMIComm* _rmiComm, int _objectId);");
3196                                 println("~" + newStubClass + "();");
3197                                 // Write methods
3198                                 writeMethodDeclCplusStub(methods, intDecl);
3199                                 print("}"); println(";");
3200                                 println("#endif");
3201                                 pw.close();
3202                                 System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".hpp...");
3203                         }
3204                 }
3205         }
3206
3207
3208         /**
3209          * writeStubExternalCFunctions() generate external functions for .so file
3210          */
3211         public void writeStubExternalCFunctions(String newStubClass) throws IOException {
3212
3213                 println("extern \"C\" void* create" + newStubClass + "(void** params) {");
3214                 println("// Args: int _portSend, int _portRecv, const char* _skeletonAddress, int _rev, bool* _bResult");
3215                 println("return new " + newStubClass + "(*((int*) params[0]), *((int*) params[1]), ((string*) params[2])->c_str(), " +
3216                         "*((int*) params[3]), (bool*) params[4]);");
3217                 println("}\n");
3218                 println("extern \"C\" void destroy" + newStubClass + "(void* t) {");
3219                 println(newStubClass + "* obj = (" + newStubClass + "*) t;");
3220                 println("delete obj;");
3221                 println("}\n");
3222                 println("extern \"C\" void init" + newStubClass + "(void* t) {");
3223                 println("}\n");
3224         }
3225
3226
3227         /**
3228          * generateCPlusStubClassesCpp() generate stubs based on the methods list in C++ (.cpp file)
3229          */
3230         public void generateCPlusStubClassesCpp() throws IOException {
3231
3232                 // Create a new directory
3233                 String path = createDirectories(dir, subdir);
3234                 for (String intface : mapIntfacePTH.keySet()) {
3235
3236                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3237                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3238                                 // Open a new file to write into
3239                                 String newIntface = intMeth.getKey();
3240                                 String newStubClass = newIntface + "_Stub";
3241                                 FileWriter fw = new FileWriter(path + "/" + newStubClass + ".cpp");
3242                                 pw = new PrintWriter(new BufferedWriter(fw));
3243                                 // Write file headers
3244                                 println("#include <iostream>");
3245                                 // Find out if there are callback objects
3246                                 Set<String> methods = intMeth.getValue();
3247                                 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
3248                                 InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
3249                                 Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
3250                                 boolean callbackExist = !callbackClasses.isEmpty();
3251                                 println("#include \"" + newStubClass + ".hpp\""); println("");
3252                                 for(String str: callbackClasses) {
3253                                         if (intface.equals(mainClass))
3254                                                 println("#include \"" + str + "_Skeleton.cpp\"\n");
3255                                         else
3256                                                 println("#include \"" + str + "_Skeleton.hpp\"\n");
3257                                 }
3258                                 println("using namespace std;"); println("");
3259                                 // Add default constructor and destructor
3260                                 writeConstructorCplusStub(newStubClass, callbackExist, callbackClasses, methods, intDecl);
3261                                 writeCallbackConstructorCplusStub(newStubClass, callbackExist, callbackClasses, methods, intDecl);
3262                                 writeDeconstructorCplusStub(newStubClass, callbackExist, callbackClasses);
3263                                 // Write methods
3264                                 writeMethodCplusStub(methods, intDecl, callbackClasses, newStubClass);
3265                                 // Write external functions for .so file
3266                                 writeStubExternalCFunctions(newStubClass);
3267                                 // TODO: Remove this later
3268                                 if (intface.equals(mainClass)) {
3269                                         println("int main() {");
3270                                         println("return 0;");
3271                                         println("}");
3272                                 }
3273                                 pw.close();
3274                                 System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".cpp...");
3275                         }
3276                 }
3277         }
3278
3279
3280         /**
3281          * HELPER: writePropertiesCplusSkeleton() writes the properties of the skeleton class
3282          */
3283         private void writePropertiesCplusSkeleton(String intface, boolean callbackExist, Set<String> callbackClasses) {
3284
3285                 println(intface + " *mainObj;");
3286                 println("IoTRMIComm *rmiComm;");
3287                 println("char* methodBytes;");
3288                 println("int methodLen;");
3289                 Integer objId = mapIntfaceObjId.get(intface);
3290                 println("int objectId = " + objId + ";");
3291                 // Keep track of object Ids of all stubs registered to this interface
3292                 writePropertiesCplusPermission(intface);
3293                 println("// Synchronization variables");
3294                 println("bool methodReceived = false;");
3295                 println("bool didAlreadyInitWaitInvoke = false;");
3296                 println("\n");
3297         }
3298
3299
3300         /**
3301          * HELPER: writeObjectIdCountInitializationCplus() writes the initialization of objIdCnt variable
3302          */
3303         private void writeObjectIdCountInitializationCplus(String newSkelClass, boolean callbackExist) {
3304
3305                 if (callbackExist)
3306                         println("int " + newSkelClass + "::objIdCnt = 0;");
3307         }
3308
3309
3310         /**
3311          * HELPER: writePermissionInitializationCplus() writes the initialization of permission set
3312          */
3313         private void writePermissionInitializationCplus(String intface, String newSkelClass, InterfaceDecl intDecl) {
3314
3315                 // Keep track of object Ids of all stubs registered to this interface
3316                 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3317                 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3318                         String newIntface = intMeth.getKey();
3319                         int newObjectId = getNewIntfaceObjectId(newIntface);
3320                         print("set<int> " + newSkelClass + "::set" + newObjectId + "Allowed { ");
3321                         Set<String> methodIds = intMeth.getValue();
3322                         int i = 0;
3323                         for (String methodId : methodIds) {
3324                                 int methodNumId = intDecl.getMethodNumId(methodId);
3325                                 print(Integer.toString(methodNumId));
3326                                 // Check if this is the last element (don't print a comma)
3327                                 if (i != methodIds.size() - 1) {
3328                                         print(", ");
3329                                 }
3330                                 i++;
3331                         }
3332                         println(" };");
3333                 }
3334         }
3335
3336
3337         /**
3338          * HELPER: writeStructPermissionCplusSkeleton() writes permission for struct helper
3339          */
3340         private void writeStructPermissionCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, String intface) {
3341
3342                 // Use this set to handle two same methodIds
3343                 for (String method : methods) {
3344                         List<String> methParams = intDecl.getMethodParams(method);
3345                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3346                         // Check for params with structs
3347                         for (int i = 0; i < methParams.size(); i++) {
3348                                 String paramType = methPrmTypes.get(i);
3349                                 String param = methParams.get(i);
3350                                 String simpleType = getGenericType(paramType);
3351                                 if (isStructClass(simpleType)) {
3352                                         int methodNumId = intDecl.getMethodNumId(method);
3353                                         String helperMethod = methodNumId + "struct" + i;
3354                                         int helperMethodNumId = intDecl.getHelperMethodNumId(helperMethod);
3355                                         // Iterate over interfaces to give permissions to
3356                                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
3357                                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
3358                                                 String newIntface = intMeth.getKey();
3359                                                 int newObjectId = getNewIntfaceObjectId(newIntface);
3360                                                 println("set" + newObjectId + "Allowed.insert(" + helperMethodNumId + ");");
3361                                         }
3362                                 }
3363                         }
3364                 }
3365         }
3366
3367
3368         /**
3369          * HELPER: writeConstructorCplusSkeleton() writes the constructor of the skeleton class
3370          */
3371         private void writeConstructorCplusSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection<String> methods) {
3372
3373                 println(newSkelClass + "::" + newSkelClass + "(" + intface + " *_mainObj, int _portSend, int _portRecv) {");
3374                 println("bool _bResult = false;");
3375                 println("mainObj = _mainObj;");
3376                 println("rmiComm = new IoTRMICommServer(_portSend, _portRecv, &_bResult);");
3377                 println("IoTRMIUtil::mapSkel->insert(make_pair(_mainObj, this));");
3378                 println("IoTRMIUtil::mapSkelId->insert(make_pair(_mainObj, objectId));");
3379                 println("rmiComm->registerSkeleton(objectId, &methodReceived);");
3380                 writeStructPermissionCplusSkeleton(methods, intDecl, intface);
3381                 println("thread th1 (&" + newSkelClass + "::___waitRequestInvokeMethod, this, this);");
3382                 println("th1.join();");
3383                 println("}\n");
3384         }
3385
3386
3387         /**
3388          * HELPER: writeCallbackConstructorCplusSkeleton() writes the callback constructor of the skeleton class
3389          */
3390         private void writeCallbackConstructorCplusSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection<String> methods) {
3391
3392                 println(newSkelClass + "::" + newSkelClass + "(" + intface + " *_mainObj, IoTRMIComm *_rmiComm, int _objectId) {");
3393                 println("bool _bResult = false;");
3394                 println("mainObj = _mainObj;");
3395                 println("rmiComm = _rmiComm;");
3396                 println("objectId = _objectId;");
3397                 println("rmiComm->registerSkeleton(objectId, &methodReceived);");
3398                 writeStructPermissionCplusSkeleton(methods, intDecl, intface);
3399                 println("}\n");
3400         }
3401
3402
3403         /**
3404          * HELPER: writeDeconstructorCplusSkeleton() writes the deconstructor of the skeleton class
3405          */
3406         private void writeDeconstructorCplusSkeleton(String newSkelClass, boolean callbackExist, Set<String> callbackClasses) {
3407
3408                 println(newSkelClass + "::~" + newSkelClass + "() {");
3409                 println("if (rmiComm != NULL) {");
3410                 println("delete rmiComm;");
3411                 println("rmiComm = NULL;");
3412                 println("}");
3413                 println("}");
3414                 println("");
3415         }
3416
3417
3418         /**
3419          * HELPER: writeStdMethodBodyCplusSkeleton() writes the standard method body in the skeleton class
3420          */
3421         private void writeStdMethodBodyCplusSkeleton(List<String> methParams, String methodId, String methodType) {
3422
3423                 if (methodType.equals("void"))
3424                         print("mainObj->" + methodId + "(");
3425                 else
3426                         print("return mainObj->" + methodId + "(");
3427                 for (int i = 0; i < methParams.size(); i++) {
3428
3429                         print(getSimpleIdentifier(methParams.get(i)));
3430                         // Check if this is the last element (don't print a comma)
3431                         if (i != methParams.size() - 1) {
3432                                 print(", ");
3433                         }
3434                 }
3435                 println(");");
3436         }
3437
3438
3439         /**
3440          * HELPER: writeMethodDeclCplusSkeleton() writes the method declaration of the skeleton class
3441          */
3442         private void writeMethodDeclCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl,
3443                         Set<String> callbackClasses) {
3444
3445                 for (String method : methods) {
3446
3447                         List<String> methParams = intDecl.getMethodParams(method);
3448                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3449                         String methodId = intDecl.getMethodId(method);
3450                         String methodType = checkAndGetCplusType(intDecl.getMethodType(method));
3451                         print(methodType + " " + methodId + "(");
3452                         boolean isCallbackMethod = false;
3453                         String callbackType = null;
3454                         for (int i = 0; i < methParams.size(); i++) {
3455
3456                                 String origParamType = methPrmTypes.get(i);
3457                                 if (callbackClasses.contains(origParamType)) { // Check if this has callback object
3458                                         isCallbackMethod = true;
3459                                         callbackType = origParamType;
3460                                 }
3461                                 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
3462                                 String methPrmType = checkAndGetCplusType(paramType);
3463                                 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3464                                 print(methParamComplete);
3465                                 // Check if this is the last element (don't print a comma)
3466                                 if (i != methParams.size() - 1) {
3467                                         print(", ");
3468                                 }
3469                         }
3470                         println(");");
3471                 }
3472         }
3473
3474
3475         /**
3476          * HELPER: writeMethodCplusSkeleton() writes the method of the skeleton class
3477          */
3478         private void writeMethodCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, String newSkelClass) {
3479
3480                 for (String method : methods) {
3481
3482                         List<String> methParams = intDecl.getMethodParams(method);
3483                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3484                         String methodId = intDecl.getMethodId(method);
3485                         String methodType = checkAndGetCplusType(intDecl.getMethodType(method));
3486                         print(methodType + " " + newSkelClass + "::" + methodId + "(");
3487                         for (int i = 0; i < methParams.size(); i++) {
3488
3489                                 String origParamType = methPrmTypes.get(i);
3490                                 String paramType = checkAndGetParamClass(methPrmTypes.get(i));
3491                                 String methPrmType = checkAndGetCplusType(paramType);
3492                                 String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3493                                 print(methParamComplete);
3494                                 // Check if this is the last element (don't print a comma)
3495                                 if (i != methParams.size() - 1) {
3496                                         print(", ");
3497                                 }
3498                         }
3499                         println(") {");
3500                         // Now, write the body of skeleton!
3501                         writeStdMethodBodyCplusSkeleton(methParams, methodId, intDecl.getMethodType(method));
3502                         println("}\n");
3503                 }
3504         }
3505
3506
3507         /**
3508          * HELPER: writeCallbackCplusNumStubs() writes the numStubs variable
3509          */
3510         private void writeCallbackCplusNumStubs(List<String> methParams, List<String> methPrmTypes, Set<String> callbackType) {
3511
3512                 for (int i = 0; i < methParams.size(); i++) {
3513                         String paramType = methPrmTypes.get(i);
3514                         String param = methParams.get(i);
3515                         if (checkCallbackType(paramType, callbackType)) // Check if this has callback object
3516                                 println("vector<int> numStubIdArray" + i + ";");
3517                 }
3518         }
3519
3520
3521         /**
3522          * HELPER: writeCallbackInstantiationCplusStubGeneration() writes the instantiation of callback stubs
3523          */
3524         private void writeCallbackInstantiationCplusStubGeneration(String exchParamType, int counter) {
3525
3526                 println(exchParamType + "* newStub" + counter + " = NULL;");
3527                 println("auto it" + counter + " = IoTRMIUtil::mapStub->find(objIdRecv" + counter + ");");
3528                 println("if (it" + counter + " == IoTRMIUtil::mapStub->end()) {");
3529                 println("newStub" + counter + " = new " + exchParamType + "_Stub(rmiComm, objIdRecv" + counter + ");");
3530                 println("IoTRMIUtil::mapStub->insert(make_pair(objIdRecv" + counter + ", newStub" + counter + "));");
3531                 println("rmiComm->setObjectIdCounter(objIdRecv" + counter + ");");
3532                 println("rmiComm->decrementObjectIdCounter();");
3533                 println("}");
3534                 println("else {");
3535                 println("newStub" + counter + " = (" + exchParamType + "_Stub*) it" + counter + "->second;");
3536                 println("}");
3537         }
3538
3539
3540         /**
3541          * HELPER: writeCallbackCplusStubGeneration() writes the callback stub generation part
3542          */
3543         private void writeCallbackCplusStubGeneration(List<String> methParams, List<String> methPrmTypes, Set<String> callbackType) {
3544
3545                 // Iterate over callback objects
3546                 for (int i = 0; i < methParams.size(); i++) {
3547                         String paramType = methPrmTypes.get(i);
3548                         String param = methParams.get(i);
3549                         // Generate a loop if needed
3550                         if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object
3551                                 String exchParamType = checkAndGetParamClass(getGenericType(paramType));
3552                                 if (isArrayOrList(paramType, param)) {
3553                                         println("vector<" + exchParamType + "*> stub" + i + ";");
3554                                         println("for (int i = 0; i < numStubIdArray" + i + ".size(); i++) {");
3555                                         println("int objIdRecv" + i + " = numStubIdArray" + i + "[i];");
3556                                         writeCallbackInstantiationCplusStubGeneration(exchParamType, i);
3557                                         println("stub" + i + ".push_back(newStub" + i + ");");
3558                                         println("}");
3559                                 } else {
3560                                         println("int objIdRecv" + i + " = numStubIdArray" + i + "[0];");
3561                                         writeCallbackInstantiationCplusStubGeneration(exchParamType, i);
3562                                         println(exchParamType + "* stub" + i + " = newStub" + i + ";");
3563                                 }
3564                         }
3565                 }
3566         }
3567
3568
3569         /**
3570          * HELPER: checkAndWriteEnumTypeCplusSkeleton() writes the enum type (convert from enum to int)
3571          */
3572         private void checkAndWriteEnumTypeCplusSkeleton(List<String> methParams, List<String> methPrmTypes) {
3573
3574                 // Iterate and find enum declarations
3575                 for (int i = 0; i < methParams.size(); i++) {
3576                         String paramType = methPrmTypes.get(i);
3577                         String param = methParams.get(i);
3578                         String simpleType = getGenericType(paramType);
3579                         if (isEnumClass(simpleType)) {
3580                         // Check if this is enum type
3581                                 if (isArrayOrList(paramType, param)) {  // An array
3582                                         println("int len" + i + " = paramEnumInt" + i + ".size();");
3583                                         println("vector<" + simpleType + "> paramEnum" + i + "(len" + i + ");");
3584                                         println("for (int i=0; i < len" + i + "; i++) {");
3585                                         println("paramEnum" + i + "[i] = (" + simpleType + ") paramEnumInt" + i + "[i];");
3586                                         println("}");
3587                                 } else {        // Just one element
3588                                         println(simpleType + " paramEnum" + i + ";");
3589                                         println("paramEnum" + i + " = (" + simpleType + ") paramEnumInt" + i + "[0];");
3590                                 }
3591                         }
3592                 }
3593         }
3594
3595
3596         /**
3597          * HELPER: checkAndWriteEnumRetTypeCplusSkeleton() writes the enum return type (convert from enum to int)
3598          */
3599         private void checkAndWriteEnumRetTypeCplusSkeleton(String retType) {
3600
3601                 // Strips off array "[]" for return type
3602                 String pureType = getSimpleArrayType(getGenericType(retType));
3603                 // Take the inner type of generic
3604                 if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES)
3605                         pureType = getGenericType(retType);
3606                 if (isEnumClass(pureType)) {
3607                 // Check if this is enum type
3608                         // Enum decoder
3609                         if (isArrayOrList(retType, retType)) {  // An array
3610                                 println("int retLen = retEnum.size();");
3611                                 println("vector<int> retEnumInt(retLen);");
3612                                 println("for (int i=0; i < retLen; i++) {");
3613                                 println("retEnumInt[i] = (int) retEnum[i];");
3614                                 println("}");
3615                         } else {        // Just one element
3616                                 println("vector<int> retEnumInt(1);");
3617                                 println("retEnumInt[0] = (int) retEnum;");
3618                         }
3619                 }
3620         }
3621
3622
3623         /**
3624          * HELPER: writeMethodInputParameters() writes the parameter variables for C++ skeleton
3625          */
3626         private void writeMethodInputParameters(List<String> methParams, List<String> methPrmTypes,
3627                         Set<String> callbackClasses, String methodId) {
3628
3629                 print(methodId + "(");
3630                 for (int i = 0; i < methParams.size(); i++) {
3631                         String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3632                         if (callbackClasses.contains(paramType))
3633                                 print("stub" + i);
3634                         else if (isEnumClass(getGenericType(paramType)))        // Check if this is enum type
3635                                 print("paramEnum" + i);
3636                         else if (isStructClass(getGenericType(paramType)))      // Struct type
3637                                 print("paramStruct" + i);
3638                         else
3639                                 print(getSimpleIdentifier(methParams.get(i)));
3640                         if (i != methParams.size() - 1) {
3641                                 print(", ");
3642                         }
3643                 }
3644                 println(");");
3645         }
3646
3647
3648         /**
3649          * HELPER: writeMethodHelperReturnCplusSkeleton() writes the return statement part in skeleton
3650          */
3651         private void writeMethodHelperReturnCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3652                         List<String> methPrmTypes, String method, boolean isCallbackMethod, Set<String> callbackType,
3653                         String methodId, Set<String> callbackClasses) {
3654
3655                 println("rmiComm->getMethodParams(paramCls, numParam, paramObj, localMethodBytes);");
3656                 if (isCallbackMethod)
3657                         writeCallbackCplusStubGeneration(methParams, methPrmTypes, callbackType);
3658                 checkAndWriteEnumTypeCplusSkeleton(methParams, methPrmTypes);
3659                 writeStructMembersInitCplusSkeleton(intDecl, methParams, methPrmTypes, method);
3660                 // Check if this is "void"
3661                 String retType = intDecl.getMethodType(method);
3662                 // Check if this is "void"
3663                 if (retType.equals("void")) {
3664                         writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId);
3665                 } else { // We do have a return value
3666                         if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type
3667                                 print(checkAndGetCplusType(retType) + " retEnum = ");
3668                         else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3669                                 print(checkAndGetCplusType(retType) + " retStruct = ");
3670                         else
3671                                 print(checkAndGetCplusType(retType) + " retVal = ");
3672                         writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId);
3673                         checkAndWriteEnumRetTypeCplusSkeleton(retType);
3674                         if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3675                                 writeStructReturnCplusSkeleton(getSimpleArrayType(getGenericType(retType)), retType);
3676                         if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type
3677                                 println("void* retObj = &retEnumInt;");
3678                         else
3679                                 if (!isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3680                                         println("void* retObj = &retVal;");
3681                         String retTypeC = checkAndGetCplusType(retType);
3682                         if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type
3683                                 println("rmiComm->sendReturnObj(retObj, retCls, numRetObj, localMethodBytes);");
3684                         else
3685                                 println("rmiComm->sendReturnObj(retObj, \"" + checkAndGetCplusRetClsType(getEnumType(retType)) + "\", localMethodBytes);");
3686                 }
3687         }
3688
3689
3690         /**
3691          * HELPER: writeStdMethodHelperBodyCplusSkeleton() writes the standard method body helper in the skeleton class
3692          */
3693         private void writeStdMethodHelperBodyCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3694                         List<String> methPrmTypes, String method, String methodId, Set<String> callbackClasses) {
3695
3696                 // Generate array of parameter types
3697                 boolean isCallbackMethod = false;
3698                 Set<String> callbackType = new HashSet<String>();
3699                 print("string paramCls[] = { ");
3700                 for (int i = 0; i < methParams.size(); i++) {
3701                         String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3702                         if (callbackClasses.contains(paramType)) {
3703                                 isCallbackMethod = true;
3704                                 callbackType.add(paramType);
3705                                 print("\"int*\"");
3706                         } else {        // Generate normal classes if it's not a callback object
3707                                 String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3708                                 print("\"" + paramTypeC + "\"");
3709                         }
3710                         if (i != methParams.size() - 1) {
3711                                 print(", ");
3712                         }
3713                 }
3714                 println(" };");
3715                 println("int numParam = " + methParams.size() + ";");
3716                 if (isCallbackMethod)
3717                         writeCallbackCplusNumStubs(methParams, methPrmTypes, callbackType);
3718                 // Generate parameters
3719                 for (int i = 0; i < methParams.size(); i++) {
3720                         String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3721                         if (!callbackClasses.contains(paramType)) {
3722                                 String methParamType = methPrmTypes.get(i);
3723                                 if (isEnumClass(getSimpleArrayType(getGenericType(methParamType)))) {
3724                                 // Check if this is enum type
3725                                         println("vector<int> paramEnumInt" + i + ";");
3726                                 } else {
3727                                         String methPrmType = checkAndGetCplusType(methParamType);
3728                                         String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i));
3729                     println(methParamComplete + ";");
3730                                 }
3731                         }
3732                 }
3733                 // Generate array of parameter objects
3734                 print("void* paramObj[] = { ");
3735                 for (int i = 0; i < methParams.size(); i++) {
3736                         String paramType = returnGenericCallbackType(methPrmTypes.get(i));
3737                         if (callbackClasses.contains(paramType))
3738                                 print("&numStubIdArray" + i);
3739                         else if (isEnumClass(getGenericType(paramType)))        // Check if this is enum type
3740                                 print("&paramEnumInt" + i);
3741                         else
3742                                 print("&" + getSimpleIdentifier(methParams.get(i)));
3743                         if (i != methParams.size() - 1) {
3744                                 print(", ");
3745                         }
3746                 }
3747                 println(" };");
3748                 // Write the return value part
3749                 writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod,
3750                         callbackType, methodId, callbackClasses);
3751         }
3752
3753
3754         /**
3755          * HELPER: writeStructMembersCplusSkeleton() writes member parameters of struct
3756          */
3757         private void writeStructMembersCplusSkeleton(String simpleType, String paramType,
3758                         String param, String method, InterfaceDecl intDecl, int iVar) {
3759
3760                 // Get the struct declaration for this struct and generate initialization code
3761                 StructDecl structDecl = getStructDecl(simpleType);
3762                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3763                 List<String> members = structDecl.getMembers(simpleType);
3764                 int methodNumId = intDecl.getMethodNumId(method);
3765                 String counter = "struct" + methodNumId + "Size" + iVar;
3766                 // Set up variables
3767                 if (isArrayOrList(paramType, param)) {  // An array or list
3768                         for (int i = 0; i < members.size(); i++) {
3769                                 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
3770                                 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
3771                                 println(getSimpleType(getEnumType(prmType)) + " param" + iVar + i + "[" + counter + "];");
3772                         }
3773                 } else {        // Just one struct element
3774                         for (int i = 0; i < members.size(); i++) {
3775                                 String prmTypeC = checkAndGetCplusType(memTypes.get(i));
3776                                 String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i));
3777                                 println(getSimpleType(getEnumType(prmType)) + " param" + iVar + i + ";");
3778                         }
3779                 }
3780                 if (isArrayOrList(paramType, param)) {  // An array or list
3781                         println("for(int i = 0; i < " + counter + "; i++) {");
3782                 }
3783                 if (isArrayOrList(paramType, param)) {  // An array or list
3784                         for (int i = 0; i < members.size(); i++) {
3785                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3786                                 println("paramCls[pos] = \"" + prmTypeC + "\";");
3787                                 println("paramObj[pos++] = &param" + iVar + i + "[i];");
3788                         }
3789                         println("}");
3790                 } else {        // Just one struct element
3791                         for (int i = 0; i < members.size(); i++) {
3792                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3793                                 println("paramCls[pos] = \"" + prmTypeC + "\";");
3794                                 println("paramObj[pos++] = &param" + iVar + i + ";");
3795                         }
3796                 }
3797         }
3798
3799
3800         /**
3801          * HELPER: writeStructMembersInitCplusSkeleton() writes member parameters initialization of struct
3802          */
3803         private void writeStructMembersInitCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3804                         List<String> methPrmTypes, String method) {
3805
3806                 for (int i = 0; i < methParams.size(); i++) {
3807                         String paramType = methPrmTypes.get(i);
3808                         String param = methParams.get(i);
3809                         String simpleType = getGenericType(paramType);
3810                         if (isStructClass(simpleType)) {
3811                                 int methodNumId = intDecl.getMethodNumId(method);
3812                                 String counter = "struct" + methodNumId + "Size" + i;
3813                                 // Declaration
3814                                 if (isArrayOrList(paramType, param)) {  // An array or list
3815                                         println("vector<" + simpleType + "> paramStruct" + i + "(" + counter + ");");
3816                                 } else
3817                                         println(simpleType + " paramStruct" + i + ";");
3818                                 // Initialize members
3819                                 StructDecl structDecl = getStructDecl(simpleType);
3820                                 List<String> members = structDecl.getMembers(simpleType);
3821                                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3822                                 if (isArrayOrList(paramType, param)) {  // An array or list
3823                                         println("for(int i = 0; i < " + counter + "; i++) {");
3824                                         for (int j = 0; j < members.size(); j++) {
3825                                                 print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j)));
3826                                                 println(" = param" + i + j + "[i];");
3827                                         }
3828                                         println("}");
3829                                 } else {        // Just one struct element
3830                                         for (int j = 0; j < members.size(); j++) {
3831                                                 print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j)));
3832                                                 println(" = param" + i + j + ";");
3833                                         }
3834                                 }
3835                         }
3836                 }
3837         }
3838
3839
3840         /**
3841          * HELPER: writeStructReturnCplusSkeleton() writes parameters of struct for return statement
3842          */
3843         private void writeStructReturnCplusSkeleton(String simpleType, String retType) {
3844
3845                 // Minimum retLen is 1 if this is a single struct object
3846                 if (isArrayOrList(retType, retType))
3847                         println("int retLen = retStruct.size();");
3848                 else    // Just single struct object
3849                         println("int retLen = 1;");
3850                 println("void* retLenObj = &retLen;");
3851                 println("rmiComm->sendReturnObj(retLenObj, \"int\", localMethodBytes);");
3852                 int numMem = getNumOfMembers(simpleType);
3853                 println("int numRetObj = " + numMem + "*retLen;");
3854                 println("string retCls[numRetObj];");
3855                 println("void* retObj[numRetObj];");
3856                 println("int retPos = 0;");
3857                 // Get the struct declaration for this struct and generate initialization code
3858                 StructDecl structDecl = getStructDecl(simpleType);
3859                 List<String> memTypes = structDecl.getMemberTypes(simpleType);
3860                 List<String> members = structDecl.getMembers(simpleType);
3861                 if (isArrayOrList(retType, retType)) {  // An array or list
3862                         println("for(int i = 0; i < retLen; i++) {");
3863                         for (int i = 0; i < members.size(); i++) {
3864                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3865                                 println("retCls[retPos] = \"" + prmTypeC + "\";");
3866                                 print("retObj[retPos++] = &retStruct[i].");
3867                                 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
3868                                 println(";");
3869                         }
3870                         println("}");
3871                 } else {        // Just one struct element
3872                         for (int i = 0; i < members.size(); i++) {
3873                                 String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i));
3874                                 println("retCls[retPos] = \"" + prmTypeC + "\";");
3875                                 print("retObj[retPos++] = &retStruct.");
3876                                 print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i));
3877                                 println(";");
3878                         }
3879                 }
3880
3881         }
3882
3883
3884         /**
3885          * HELPER: writeMethodHelperStructCplusSkeleton() writes the struct in skeleton
3886          */
3887         private void writeMethodHelperStructCplusSkeleton(InterfaceDecl intDecl, List<String> methParams,
3888                         List<String> methPrmTypes, String method, String methodId, Set<String> callbackClasses) {
3889
3890                 // Generate array of parameter objects
3891                 boolean isCallbackMethod = false;
3892                 Set<String> callbackType = new HashSet<String>();
3893                 print("int numParam = ");
3894                 writeLengthStructParamClassSkeleton(methParams, methPrmTypes, method, intDecl);
3895                 println(";");
3896                 println("string paramCls[numParam];");
3897                 println("void* paramObj[numParam];");
3898                 println("int pos = 0;");
3899                 // Iterate again over the parameters
3900                 for (int i = 0; i < methParams.size(); i++) {
3901                         String paramType = methPrmTypes.get(i);
3902                         String param = methParams.get(i);
3903                         String simpleType = getGenericType(paramType);
3904                         if (isStructClass(simpleType)) {
3905                                 writeStructMembersCplusSkeleton(simpleType, paramType, param, method, intDecl, i);
3906                         } else {
3907                                 String prmType = returnGenericCallbackType(methPrmTypes.get(i));
3908                                 if (callbackClasses.contains(prmType)) {
3909                                         isCallbackMethod = true;
3910                                         callbackType.add(prmType);
3911                                         println("vector<int> numStubIdArray" + i + ";");
3912                                         println("paramCls[pos] = \"int*\";");
3913                                         println("paramObj[pos++] = &numStubIdArray" + i + ";");
3914                                 } else {        // Generate normal classes if it's not a callback object
3915                                         String paramTypeC = checkAndGetCplusType(methPrmTypes.get(i));
3916                                         if (isEnumClass(getGenericType(paramTypeC))) {  // Check if this is enum type
3917                                                 println("vector<int> paramEnumInt" + i + ";");
3918                                         } else {
3919                                                 String methParamComplete = checkAndGetCplusArray(paramTypeC, methParams.get(i));
3920                                                 println(methParamComplete + ";");
3921                                         }
3922                                         String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i));
3923                                         println("paramCls[pos] = \"" + prmTypeC + "\";");
3924                                         if (isEnumClass(getGenericType(paramType)))     // Check if this is enum type
3925                                                 println("paramObj[pos++] = &paramEnumInt" + i + ";");
3926                                         else
3927                                                 println("paramObj[pos++] = &" + getSimpleIdentifier(methParams.get(i)) + ";");
3928                                 }
3929                         }
3930                 }
3931                 // Write the return value part
3932                 writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod,
3933                         callbackType, methodId, callbackClasses);
3934         }
3935
3936
3937         /**
3938          * HELPER: writeMethodHelperDeclCplusSkeleton() writes the method helper declarations of the skeleton class
3939          */
3940         private void writeMethodHelperDeclCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl, String newSkelClass) {
3941
3942                 // Use this set to handle two same methodIds
3943                 Set<String> uniqueMethodIds = new HashSet<String>();
3944                 for (String method : methods) {
3945
3946                         List<String> methParams = intDecl.getMethodParams(method);
3947                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
3948                         if (isStructPresent(methParams, methPrmTypes)) {        // Treat struct differently
3949                                 String methodId = intDecl.getMethodId(method);
3950                                 print("void ___");
3951                                 String helperMethod = methodId;
3952                                 if (uniqueMethodIds.contains(methodId))
3953                                         helperMethod = helperMethod + intDecl.getMethodNumId(method);
3954                                 else
3955                                         uniqueMethodIds.add(methodId);
3956                                 String retType = intDecl.getMethodType(method);
3957                                 print(helperMethod + "(");
3958                                 boolean begin = true;
3959                                 for (int i = 0; i < methParams.size(); i++) { // Print size variables
3960                                         String paramType = methPrmTypes.get(i);
3961                                         String param = methParams.get(i);
3962                                         String simpleType = getGenericType(paramType);
3963                                         if (isStructClass(simpleType)) {
3964                                                 if (!begin)     // Generate comma for not the beginning variable
3965                                                         print(", ");
3966                                                 else
3967                                                         begin = false;
3968                                                 int methodNumId = intDecl.getMethodNumId(method);
3969                                                 print("int struct" + methodNumId + "Size" + i);
3970                                         }
3971                                 }
3972                                 println(", " + newSkelClass + "* skel);");
3973                         } else {
3974                                 String methodId = intDecl.getMethodId(method);
3975                                 print("void ___");
3976                                 String helperMethod = methodId;
3977                                 if (uniqueMethodIds.contains(methodId))
3978                                         helperMethod = helperMethod + intDecl.getMethodNumId(method);
3979                                 else
3980                                         uniqueMethodIds.add(methodId);
3981                                 // Check if this is "void"
3982                                 String retType = intDecl.getMethodType(method);
3983                                 println(helperMethod + "(" + newSkelClass + "* skel);");
3984                         }
3985                 }
3986                 // Write method helper for structs
3987                 writeMethodHelperStructDeclSetupCplusSkeleton(methods, intDecl, newSkelClass);
3988         }
3989
3990
3991         /**
3992          * HELPER: writeMethodHelperStructDeclSetupCplusSkeleton() writes the struct method helper declaration in skeleton class
3993          */
3994         private void writeMethodHelperStructDeclSetupCplusSkeleton(Collection<String> methods,
3995                         InterfaceDecl intDecl, String newSkelClass) {
3996
3997                 // Use this set to handle two same methodIds
3998                 for (String method : methods) {
3999
4000                         List<String> methParams = intDecl.getMethodParams(method);
4001                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4002                         // Check for params with structs
4003                         for (int i = 0; i < methParams.size(); i++) {
4004                                 String paramType = methPrmTypes.get(i);
4005                                 String param = methParams.get(i);
4006                                 String simpleType = getGenericType(paramType);
4007                                 if (isStructClass(simpleType)) {
4008                                         int methodNumId = intDecl.getMethodNumId(method);
4009                                         print("int ___");
4010                                         String helperMethod = methodNumId + "struct" + i;
4011                                         println(helperMethod + "(" + newSkelClass + "* skel);");
4012                                 }
4013                         }
4014                 }
4015         }
4016
4017
4018         /**
4019          * HELPER: writeMethodBytesCopy() writes the methodBytes copy part in C++ skeleton
4020          */
4021         private void writeMethodBytesCopy() {
4022
4023                 println("char* localMethodBytes = new char[methodLen];");
4024                 println("memcpy(localMethodBytes, skel->methodBytes, methodLen);");
4025                 println("didGetMethodBytes.exchange(true);");
4026         }
4027
4028
4029         /**
4030          * HELPER: writeMethodHelperCplusSkeleton() writes the method helper of the skeleton class
4031          */
4032         private void writeMethodHelperCplusSkeleton(Collection<String> methods, InterfaceDecl intDecl,
4033                         Set<String> callbackClasses, String newSkelClass) {
4034
4035                 // Use this set to handle two same methodIds
4036                 Set<String> uniqueMethodIds = new HashSet<String>();
4037                 for (String method : methods) {
4038
4039                         List<String> methParams = intDecl.getMethodParams(method);
4040                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4041                         if (isStructPresent(methParams, methPrmTypes)) {        // Treat struct differently
4042                                 String methodId = intDecl.getMethodId(method);
4043                                 print("void " + newSkelClass + "::___");
4044                                 String helperMethod = methodId;
4045                                 if (uniqueMethodIds.contains(methodId))
4046                                         helperMethod = helperMethod + intDecl.getMethodNumId(method);
4047                                 else
4048                                         uniqueMethodIds.add(methodId);
4049                                 String retType = intDecl.getMethodType(method);
4050                                 print(helperMethod + "(");
4051                                 boolean begin = true;
4052                                 for (int i = 0; i < methParams.size(); i++) { // Print size variables
4053                                         String paramType = methPrmTypes.get(i);
4054                                         String param = methParams.get(i);
4055                                         String simpleType = getGenericType(paramType);
4056                                         if (isStructClass(simpleType)) {
4057                                                 if (!begin)     // Generate comma for not the beginning variable
4058                                                         print(", ");
4059                                                 else
4060                                                         begin = false;
4061                                                 int methodNumId = intDecl.getMethodNumId(method);
4062                                                 print("int struct" + methodNumId + "Size" + i);
4063                                         }
4064                                 }
4065                                 println(", " + newSkelClass + "* skel) {");
4066                                 writeMethodBytesCopy();
4067                                 writeMethodHelperStructCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4068                                 println("delete[] localMethodBytes;");
4069                                 println("}\n");
4070                         } else {
4071                                 String methodId = intDecl.getMethodId(method);
4072                                 print("void " + newSkelClass + "::___");
4073                                 String helperMethod = methodId;
4074                                 if (uniqueMethodIds.contains(methodId))
4075                                         helperMethod = helperMethod + intDecl.getMethodNumId(method);
4076                                 else
4077                                         uniqueMethodIds.add(methodId);
4078                                 // Check if this is "void"
4079                                 String retType = intDecl.getMethodType(method);
4080                                 println(helperMethod + "(" + newSkelClass + "* skel) {");
4081                                 writeMethodBytesCopy();
4082                                 // Now, write the helper body of skeleton!
4083                                 writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses);
4084                                 println("delete[] localMethodBytes;");
4085                                 println("}\n");
4086                         }
4087                 }
4088                 // Write method helper for structs
4089                 writeMethodHelperStructSetupCplusSkeleton(methods, intDecl, newSkelClass);
4090         }
4091
4092
4093         /**
4094          * HELPER: writeMethodHelperStructSetupCplusSkeleton() writes the method helper of struct in skeleton class
4095          */
4096         private void writeMethodHelperStructSetupCplusSkeleton(Collection<String> methods,
4097                         InterfaceDecl intDecl, String newSkelClass) {
4098
4099                 // Use this set to handle two same methodIds
4100                 for (String method : methods) {
4101
4102                         List<String> methParams = intDecl.getMethodParams(method);
4103                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4104                         // Check for params with structs
4105                         for (int i = 0; i < methParams.size(); i++) {
4106                                 String paramType = methPrmTypes.get(i);
4107                                 String param = methParams.get(i);
4108                                 String simpleType = getGenericType(paramType);
4109                                 if (isStructClass(simpleType)) {
4110                                         int methodNumId = intDecl.getMethodNumId(method);
4111                                         print("int " + newSkelClass + "::___");
4112                                         String helperMethod = methodNumId + "struct" + i;
4113                                         println(helperMethod + "(" + newSkelClass + "* skel) {");
4114                                         // Now, write the helper body of skeleton!
4115                                         writeMethodBytesCopy();
4116                                         println("string paramCls[] = { \"int\" };");
4117                                         println("int numParam = 1;");
4118                                         println("int param0 = 0;");
4119                                         println("void* paramObj[] = { &param0 };");
4120                                         println("rmiComm->getMethodParams(paramCls, numParam, paramObj, localMethodBytes);");
4121                                         println("return param0;");
4122                                         println("delete[] localMethodBytes;");
4123                                         println("}\n");
4124                                 }
4125                         }
4126                 }
4127         }
4128
4129
4130         /**
4131          * HELPER: writeMethodHelperStructSetupCplusCallbackSkeleton() writes the method helper of struct in skeleton class
4132          */
4133         private void writeMethodHelperStructSetupCplusCallbackSkeleton(Collection<String> methods,
4134                         InterfaceDecl intDecl) {
4135
4136                 // Use this set to handle two same methodIds
4137                 for (String method : methods) {
4138
4139                         List<String> methParams = intDecl.getMethodParams(method);
4140                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4141                         // Check for params with structs
4142                         for (int i = 0; i < methParams.size(); i++) {
4143                                 String paramType = methPrmTypes.get(i);
4144                                 String param = methParams.get(i);
4145                                 String simpleType = getGenericType(paramType);
4146                                 if (isStructClass(simpleType)) {
4147                                         int methodNumId = intDecl.getMethodNumId(method);
4148                                         print("int ___");
4149                                         String helperMethod = methodNumId + "struct" + i;
4150                                         println(helperMethod + "(IoTRMIObject* rmiObj) {");
4151                                         // Now, write the helper body of skeleton!
4152                                         println("string paramCls[] = { \"int\" };");
4153                                         println("int numParam = 1;");
4154                                         println("int param0 = 0;");
4155                                         println("void* paramObj[] = { &param0 };");
4156                                         println("rmiComm->getMethodParams(paramCls, numParam, paramObj, localMethodBytes);");
4157                                         println("return param0;");
4158                                         println("}\n");
4159                                 }
4160                         }
4161                 }
4162         }
4163
4164
4165         /**
4166          * HELPER: writeCplusMethodPermission() writes permission checks in skeleton
4167          */
4168         private void writeCplusMethodPermission(String intface) {
4169
4170                 // Get all the different stubs
4171                 Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
4172                 for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
4173                         String newIntface = intMeth.getKey();
4174                         int newObjectId = getNewIntfaceObjectId(newIntface);
4175                         println("if (_objectId == objectId) {");
4176                         println("if (set" + newObjectId + "Allowed.find(methodId) == set" + newObjectId + "Allowed.end()) {");
4177                         println("cerr << \"Object with object Id: \" << _objectId << \"  is not allowed to access method: \" << methodId << endl;");
4178                         println("return;");
4179                         println("}");
4180                         println("}");
4181                         println("else {");
4182                         println("continue;");
4183                         println("}");
4184                 }
4185         }
4186
4187
4188         /**
4189          * HELPER: writeCplusWaitRequestInvokeMethod() writes the main loop of the skeleton class
4190          */
4191         private void writeCplusWaitRequestInvokeMethod(Collection<String> methods, InterfaceDecl intDecl,
4192                         boolean callbackExist, String intface, String newSkelClass) {
4193
4194                 // Use this set to handle two same methodIds
4195                 Set<String> uniqueMethodIds = new HashSet<String>();
4196                 println("void " + newSkelClass + "::___waitRequestInvokeMethod(" + newSkelClass + "* skel) {");
4197                 // Write variables here if we have callbacks or enums or structs
4198                 writeCountVarStructSkeleton(methods, intDecl);
4199                 println("skel->didAlreadyInitWaitInvoke = true;");
4200                 println("while (true) {");
4201                 println("if (!methodReceived) {");
4202                 println("continue;");
4203                 println("}");
4204                 println("skel->methodBytes = skel->rmiComm->getMethodBytes();");
4205                 println("skel->methodLen = skel->rmiComm->getMethodLength();");
4206                 println("methodReceived = false;");
4207                 println("int _objectId = skel->rmiComm->getObjectId(skel->methodBytes);");
4208                 println("int methodId = skel->rmiComm->getMethodId(skel->methodBytes);");
4209                 // Generate permission check
4210                 writeCplusMethodPermission(intface);
4211                 println("switch (methodId) {");
4212                 // Print methods and method Ids
4213                 for (String method : methods) {
4214                         String methodId = intDecl.getMethodId(method);
4215                         int methodNumId = intDecl.getMethodNumId(method);
4216                         println("case " + methodNumId + ": {");
4217                         print("thread th" + methodNumId + " (&" + newSkelClass + "::___");
4218                         String helperMethod = methodId;
4219                         if (uniqueMethodIds.contains(methodId))
4220                                 helperMethod = helperMethod + methodNumId;
4221                         else
4222                                 uniqueMethodIds.add(methodId);
4223                         print(helperMethod + ", skel, ");
4224                         boolean structExists = writeInputCountVarStructCplusSkeleton(method, intDecl);
4225                         if (structExists)
4226                                 print(", ");
4227                         println("skel);");
4228                         println("th" + methodNumId + ".detach(); break;");
4229                         println("}");
4230                 }
4231                 writeMethodCallStructCplusSkeleton(methods, intDecl);
4232                 println("default: ");
4233                 println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;");
4234                 println("return;");
4235                 println("}");
4236                 println("}");
4237                 println("}\n");
4238         }
4239
4240
4241         /**
4242          * generateCplusSkeletonClassHpp() generate skeletons based on the methods list in C++ (.hpp file)
4243          */
4244         public void generateCplusSkeletonClassHpp() throws IOException {
4245
4246                 // Create a new directory
4247                 String path = createDirectories(dir, subdir);
4248                 for (String intface : mapIntfacePTH.keySet()) {
4249                         // Open a new file to write into
4250                         String newSkelClass = intface + "_Skeleton";
4251                         FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".hpp");
4252                         pw = new PrintWriter(new BufferedWriter(fw));
4253                         // Write file headers
4254                         println("#ifndef _" + newSkelClass.toUpperCase() + "_HPP__");
4255                         println("#define _" + newSkelClass.toUpperCase() + "_HPP__");
4256                         println("#include <iostream>");
4257                         println("#include \"" + intface + ".hpp\"\n");
4258                         // Pass in set of methods and get import classes
4259                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4260                         InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4261                         List<String> methods = intDecl.getMethods();
4262                         List<String> stdIncludeClasses = getStandardCplusIncludeClasses();
4263                         printIncludeStatements(stdIncludeClasses); println("");
4264                         println("using namespace std;\n");
4265                         // Find out if there are callback objects
4266                         Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
4267                         boolean callbackExist = !callbackClasses.isEmpty();
4268                         // Write class header
4269                         println("class " + newSkelClass + " : public " + intface); println("{");
4270                         println("private:\n");
4271                         // Write properties
4272                         writePropertiesCplusSkeleton(intface, callbackExist, callbackClasses);
4273                         println("public:\n");
4274                         // Write constructors
4275                         println(newSkelClass + "();");
4276                         println(newSkelClass + "(" + intface + "*_mainObj, int _portSend, int _portRecv);");
4277                         println(newSkelClass + "(" + intface + "*_mainObj, IoTRMIComm *rmiComm, int _objectId);");
4278                         // Write deconstructor
4279                         println("~" + newSkelClass + "();");
4280                         // Write method declarations
4281                         println("bool didInitWaitInvoke();");
4282                         writeMethodDeclCplusSkeleton(methods, intDecl, callbackClasses);
4283                         // Write method helper declarations
4284                         writeMethodHelperDeclCplusSkeleton(methods, intDecl, newSkelClass);
4285                         // Write waitRequestInvokeMethod() declaration - main loop
4286                         println("void ___waitRequestInvokeMethod(" + newSkelClass + "* skel);");
4287                         println("};");
4288                         writePermissionInitializationCplus(intface, newSkelClass, intDecl);
4289                         println("#endif");
4290                         pw.close();
4291                         System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".hpp...");
4292                 }
4293         }
4294
4295         /**
4296          * HELPER: writeReturnDidAlreadyInitWaitInvoke() writes the function to return didAlreadyInitWaitInvoke
4297          */
4298         private void writeReturnDidAlreadyInitWaitInvoke(String newSkelClass) {
4299
4300                 println("bool " + newSkelClass + "::didInitWaitInvoke() {");
4301                 println("return didAlreadyInitWaitInvoke;");
4302                 println("}\n");
4303         }
4304
4305
4306         /**
4307          * writeSkelExternalCFunctions() generate external functions for .so file
4308          */
4309         public void writeSkelExternalCFunctions(String newSkelClass, String intface) throws IOException {
4310
4311                 println("extern \"C\" void* create" + newSkelClass + "(void** params) {");
4312                 println("// Args: *_mainObj, int _portSend, int _portRecv");
4313                 println("return new " + newSkelClass + "((" + intface + "*) params[0], *((int*) params[1]), *((int*) params[2]));");
4314                 println("}\n");
4315                 println("extern \"C\" void destroy" + newSkelClass + "(void* t) {");
4316                 println(newSkelClass + "* obj = (" + newSkelClass + "*) t;");
4317                 println("delete obj;");
4318                 println("}\n");
4319                 println("extern \"C\" void init" + newSkelClass + "(void* t) {");
4320                 println("}\n");
4321         }
4322
4323
4324         /**
4325          * generateCplusSkeletonClassCpp() generate skeletons based on the methods list in C++ (.cpp file)
4326          */
4327         public void generateCplusSkeletonClassCpp() throws IOException {
4328
4329                 // Create a new directory
4330                 String path = createDirectories(dir, subdir);
4331                 for (String intface : mapIntfacePTH.keySet()) {
4332                         // Open a new file to write into
4333                         String newSkelClass = intface + "_Skeleton";
4334                         FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".cpp");
4335                         pw = new PrintWriter(new BufferedWriter(fw));
4336                         // Write file headers
4337                         println("#include <iostream>");
4338                         println("#include \"" + newSkelClass + ".hpp\"\n");
4339                         // Pass in set of methods and get import classes
4340                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4341                         InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4342                         List<String> methods = intDecl.getMethods();
4343                         // Find out if there are callback objects
4344                         Set<String> callbackClasses = getCallbackClasses(methods, intDecl);
4345                         boolean callbackExist = !callbackClasses.isEmpty();
4346                         for(String str: callbackClasses) {
4347                                 if (intface.equals(mainClass))
4348                                         println("#include \"" + getStubInterface(str) + "_Stub.cpp\"\n");
4349                                 else
4350                                         println("#include \"" + getStubInterface(str) + "_Stub.hpp\"\n");
4351                         }
4352                         println("using namespace std;\n");
4353                         // Write constructor
4354                         writeConstructorCplusSkeleton(newSkelClass, intface, callbackExist, intDecl, methods);
4355                         // Write callback constructor
4356                         writeCallbackConstructorCplusSkeleton(newSkelClass, intface, callbackExist, intDecl, methods);
4357                         // Write deconstructor
4358                         writeDeconstructorCplusSkeleton(newSkelClass, callbackExist, callbackClasses);
4359                         // Write didInitWaitInvoke() to return bool
4360                         writeReturnDidAlreadyInitWaitInvoke(newSkelClass);
4361                         // Write methods
4362                         writeMethodCplusSkeleton(methods, intDecl, newSkelClass);
4363                         // Write method helper
4364                         writeMethodHelperCplusSkeleton(methods, intDecl, callbackClasses, newSkelClass);
4365                         // Write waitRequestInvokeMethod() - main loop
4366                         writeCplusWaitRequestInvokeMethod(methods, intDecl, callbackExist, intface, newSkelClass);
4367                         // Write external functions for .so file
4368                         writeSkelExternalCFunctions(newSkelClass, intface);
4369                         // TODO: Remove this later
4370                         if (intface.equals(mainClass)) {
4371                                 println("int main() {");
4372                                 println("return 0;");
4373                                 println("}");
4374                         }
4375                         pw.close();
4376                         System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".cpp...");
4377                 }
4378         }
4379
4380
4381         /**
4382          * generateInitializer() generate initializer based on type
4383          */
4384         public String generateCplusInitializer(String type) {
4385
4386                 // Generate dummy returns for now
4387                 if (type.equals("short")||
4388                         type.equals("int")      ||
4389                         type.equals("long") ||
4390                         type.equals("float")||
4391                         type.equals("double")) {
4392
4393                         return "0";
4394                 } else if ( type.equals("String") ||
4395                                         type.equals("string")) {
4396
4397                         return "\"\"";
4398                 } else if ( type.equals("char") ||
4399                                         type.equals("byte")) {
4400
4401                         return "\' \'";
4402                 } else if ( type.equals("boolean")) {
4403
4404                         return "false";
4405                 } else {
4406                         return "NULL";
4407                 }
4408         }
4409
4410
4411         /**
4412          * setDirectory() sets a new directory for stub files
4413          */
4414         public void setDirectory(String _subdir) {
4415
4416                 subdir = _subdir;
4417         }
4418
4419
4420         /**
4421          * printUsage() prints the usage of this compiler
4422          */
4423         public static void printUsage() {
4424
4425                 System.out.println();
4426                 System.out.println("Vigilia interface and stub compiler version 1.0");
4427                 System.out.println("Copyright (c) 2015-2016 University of California, Irvine - Programming Language Group.");
4428                 System.out.println("All rights reserved.");
4429                 System.out.println("Usage:");
4430                 System.out.println("\tjava IoTCompiler -help / --help / -h\n");
4431                 System.out.println("\t\tDisplay this help texts\n\n");
4432                 System.out.println("\tjava IoTCompiler [<main-policy-file> <req-policy-file>]");
4433                 System.out.println("\tjava IoTCompiler [<main-policy-file> <req-policy-file>] [options]\n");
4434                 System.out.println("\t\tTake one or more pairs of main-req policy files, and generate Java and/or C++ files\n");
4435                 System.out.println("Options:");
4436                 System.out.println("\t-cont\t<controller-class>\tSpecify controller class name");
4437                 System.out.println("\t-drv\t<driver-class>\t\tSpecify driver class name");
4438                 System.out.println("\t-cplus\t<directory>\t\tGenerate C++ stub files");
4439                 System.out.println("\t-java\t<directory>\t\tGenerate Java stub files\n");
4440                 System.out.println("\t\tNote: The options -cont and -drv have to be defined before -cplus and -java");
4441                 System.out.println();
4442         }
4443
4444
4445         /**
4446          * parseFile() prepares Lexer and Parser objects, then parses the file
4447          */
4448         public static ParseNode parseFile(String file) {
4449
4450                 ParseNode pn = null;
4451                 try {
4452                         ComplexSymbolFactory csf = new ComplexSymbolFactory();
4453                         ScannerBuffer lexer =
4454                                 new ScannerBuffer(new Lexer(new BufferedReader(new FileReader(file)),csf));
4455                         Parser parse = new Parser(lexer,csf);
4456                         pn = (ParseNode) parse.parse().value;
4457                 } catch (Exception e) {
4458                         e.printStackTrace();
4459                         throw new Error("IoTCompiler: ERROR parsing policy file or wrong command line option: " + file + "\n");
4460                 }
4461
4462                 return pn;
4463         }
4464
4465
4466         /**================
4467          * Basic helper functions
4468          **================
4469          */
4470         boolean newline=true;
4471         int tablevel=0;
4472
4473         private void print(String str) {
4474                 if (newline) {
4475                         int tab=tablevel;
4476                         if (str.equals("}"))
4477                                 tab--;
4478                         for(int i=0; i<tab; i++)
4479                                 pw.print("\t");
4480                 }
4481                 pw.print(str);
4482                 updatetabbing(str);
4483                 newline=false;
4484         }
4485
4486
4487         /**
4488          * This function converts Java to C++ type for compilation
4489          */
4490         private String convertType(String type) {
4491
4492                 if (mapPrimitives.containsKey(type))
4493                         return mapPrimitives.get(type);
4494                 else
4495                         return type;
4496         }
4497
4498
4499         /**
4500          * A collection of methods with print-to-file functionality
4501          */
4502         private void println(String str) {
4503                 if (newline) {
4504                         int tab = tablevel;
4505                         if (str.contains("}") && !str.contains("{"))
4506                                 tab--;
4507                         for(int i=0; i<tab; i++)
4508                                 pw.print("\t");
4509                 }
4510                 pw.println(str);
4511                 updatetabbing(str);
4512                 newline = true;
4513         }
4514
4515
4516         private void updatetabbing(String str) {
4517
4518                 tablevel+=count(str,'{')-count(str,'}');
4519         }
4520
4521
4522         private int count(String str, char key) {
4523                 char[] array = str.toCharArray();
4524                 int count = 0;
4525                 for(int i=0; i<array.length; i++) {
4526                         if (array[i] == key)
4527                                 count++;
4528                 }
4529                 return count;
4530         }
4531
4532
4533         private void createDirectory(String dirName) {
4534
4535                 File file = new File(dirName);
4536                 if (!file.exists()) {
4537                         if (file.mkdir()) {
4538                                 System.out.println("IoTCompiler: Directory " + dirName + " has been created!");
4539                         } else {
4540                                 System.out.println("IoTCompiler: Failed to create directory " + dirName + "!");
4541                         }
4542                 } else {
4543                         System.out.println("IoTCompiler: Directory " + dirName + " exists...");
4544                 }
4545         }
4546
4547
4548         // Create a directory and possibly a sub directory
4549         private String createDirectories(String dir, String subdir) {
4550
4551                 String path = dir;
4552                 createDirectory(path);
4553                 if (subdir != null) {
4554                         path = path + "/" + subdir;
4555                         createDirectory(path);
4556                 }
4557                 return path;
4558         }
4559
4560
4561         // Inserting array members into a Map object
4562         // that maps arrKey to arrVal objects
4563         private void arraysToMap(Map map, Object[] arrKey, Object[] arrVal) {
4564
4565                 for(int i = 0; i < arrKey.length; i++) {
4566
4567                         map.put(arrKey[i], arrVal[i]);
4568                 }
4569         }
4570
4571
4572         // Check and find object Id for new interface in mapNewIntfaceObjId (callbacks)
4573         // Throw an error if the new interface is not found!
4574         // Basically the compiler needs to parse the policy (and requires) files for callback class first
4575         private int getNewIntfaceObjectId(String newIntface) {
4576
4577                 int retObjId = mapNewIntfaceObjId.get(newIntface);
4578                 return retObjId;
4579         }
4580
4581
4582         // Return parameter category, i.e. PRIMITIVES, NONPRIMITIVES, USERDEFINED, ENUM, or STRUCT
4583         private ParamCategory getParamCategory(String paramType) {
4584
4585                 if (mapPrimitives.containsKey(paramType)) {
4586                         return ParamCategory.PRIMITIVES;
4587                 // We can either use mapNonPrimitivesJava or mapNonPrimitivesCplus here
4588                 } else if (mapNonPrimitivesJava.containsKey(getSimpleType(paramType))) {
4589                         return ParamCategory.NONPRIMITIVES;
4590                 } else if (isEnumClass(paramType)) {
4591                         return ParamCategory.ENUM;
4592                 } else if (isStructClass(paramType)) {
4593                         return ParamCategory.STRUCT;
4594                 } else
4595                         return ParamCategory.USERDEFINED;
4596         }
4597
4598
4599         // Return full class name for non-primitives to generate Java import statements
4600         // e.g. java.util.Set for Set
4601         private String getNonPrimitiveJavaClass(String paramNonPrimitives) {
4602
4603                 return mapNonPrimitivesJava.get(paramNonPrimitives);
4604         }
4605
4606
4607         // Return full class name for non-primitives to generate Cplus include statements
4608         // e.g. #include <set> for Set
4609         private String getNonPrimitiveCplusClass(String paramNonPrimitives) {
4610
4611                 return mapNonPrimitivesCplus.get(paramNonPrimitives);
4612         }
4613
4614
4615         // Get simple types, e.g. HashSet for HashSet<...>
4616         // Basically strip off the "<...>"
4617         private String getSimpleType(String paramType) {
4618
4619                 // Check if this is generics
4620                 if(paramType.contains("<")) {
4621                         String[] type = paramType.split("<");
4622                         return type[0];
4623                 } else
4624                         return paramType;
4625         }
4626
4627
4628         // Generate a set of standard classes for import statements
4629         private List<String> getStandardJavaIntfaceImportClasses() {
4630
4631                 List<String> importClasses = new ArrayList<String>();
4632                 // Add the standard list first
4633                 importClasses.add("java.util.List");
4634                 importClasses.add("java.util.ArrayList");
4635
4636                 return importClasses;
4637         }
4638
4639
4640         // Generate a set of standard classes for import statements
4641         private List<String> getStandardJavaImportClasses() {
4642
4643                 List<String> importClasses = new ArrayList<String>();
4644                 // Add the standard list first
4645                 importClasses.add("java.io.IOException");
4646                 importClasses.add("java.util.List");
4647                 importClasses.add("java.util.ArrayList");
4648                 importClasses.add("java.util.Arrays");
4649                 importClasses.add("java.util.Map");
4650                 importClasses.add("java.util.HashMap");
4651                 importClasses.add("java.util.concurrent.atomic.AtomicBoolean");
4652                 importClasses.add("iotrmi.Java.IoTRMIComm");
4653                 importClasses.add("iotrmi.Java.IoTRMICommClient");
4654                 importClasses.add("iotrmi.Java.IoTRMICommServer");
4655                 importClasses.add("iotrmi.Java.IoTRMIUtil");
4656
4657                 return importClasses;
4658         }
4659
4660
4661         // Generate a set of standard classes for import statements
4662         private List<String> getStandardCplusIncludeClasses() {
4663
4664                 List<String> importClasses = new ArrayList<String>();
4665                 // Add the standard list first
4666                 importClasses.add("<vector>");
4667                 importClasses.add("<set>");
4668                 importClasses.add("\"IoTRMIComm.hpp\"");
4669                 importClasses.add("\"IoTRMICommClient.hpp\"");
4670                 importClasses.add("\"IoTRMICommServer.hpp\"");
4671
4672                 return importClasses;
4673         }
4674
4675
4676         // Combine all classes for import statements
4677         private List<String> getAllLibClasses(Collection<String> stdLibClasses, Collection<String> libClasses) {
4678
4679                 List<String> allLibClasses = new ArrayList<String>(stdLibClasses);
4680                 // Iterate over the list of import classes
4681                 for (String str : libClasses) {
4682                         if (!allLibClasses.contains(str)) {
4683                                 allLibClasses.add(str);
4684                         }
4685                 }
4686                 return allLibClasses;
4687         }
4688
4689
4690
4691         // Generate a set of classes for import statements
4692         private Set<String> getImportClasses(Collection<String> methods, InterfaceDecl intDecl) {
4693
4694                 Set<String> importClasses = new HashSet<String>();
4695                 for (String method : methods) {
4696                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4697                         for (String paramType : methPrmTypes) {
4698
4699                                 String simpleType = getSimpleType(paramType);
4700                                 if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) {
4701                                         importClasses.add(getNonPrimitiveJavaClass(simpleType));
4702                                 }
4703                         }
4704                 }
4705                 return importClasses;
4706         }
4707
4708
4709         // Handle and return the correct enum declaration
4710         // In Java, if we declare enum in Camera interface, then it becomes "Camera.<enum>"
4711         private String getEnumParamDecl(String type, InterfaceDecl intDecl) {
4712
4713                 // Strips off array "[]" for return type
4714                 String pureType = getSimpleArrayType(type);
4715                 // Take the inner type of generic
4716                 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4717                         pureType = getTypeOfGeneric(type)[0];
4718                 if (isEnumClass(pureType)) {
4719                         String enumType = intDecl.getInterface() + "." + type;
4720                         return enumType;
4721                 } else
4722                         return type;
4723         }
4724
4725
4726         // Handle and return the correct type
4727         private String getEnumParam(String type, String param, int i) {
4728
4729                 // Strips off array "[]" for return type
4730                 String pureType = getSimpleArrayType(type);
4731                 // Take the inner type of generic
4732                 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4733                         pureType = getTypeOfGeneric(type)[0];
4734                 if (isEnumClass(pureType)) {
4735                         String enumParam = "paramEnum" + i;
4736                         return enumParam;
4737                 } else
4738                         return param;
4739         }
4740
4741
4742         // Handle and return the correct enum declaration translate into int[]
4743         private String getEnumType(String type) {
4744
4745                 // Strips off array "[]" for return type
4746                 String pureType = getSimpleArrayType(type);
4747                 // Take the inner type of generic
4748                 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4749                         pureType = getGenericType(type);
4750                 if (isEnumClass(pureType)) {
4751                         String enumType = "int[]";
4752                         return enumType;
4753                 } else
4754                         return type;
4755         }
4756
4757         // Handle and return the correct enum declaration translate into int* for C
4758         private String getEnumCplusClsType(String type) {
4759
4760                 // Strips off array "[]" for return type
4761                 String pureType = getSimpleArrayType(type);
4762                 // Take the inner type of generic
4763                 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4764                         pureType = getGenericType(type);
4765                 if (isEnumClass(pureType)) {
4766                         String enumType = "int*";
4767                         return enumType;
4768                 } else
4769                         return type;
4770         }
4771
4772
4773         // Handle and return the correct struct declaration
4774         private String getStructType(String type) {
4775
4776                 // Strips off array "[]" for return type
4777                 String pureType = getSimpleArrayType(type);
4778                 // Take the inner type of generic
4779                 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES)
4780                         pureType = getGenericType(type);
4781                 if (isStructClass(pureType)) {
4782                         String structType = "int";
4783                         return structType;
4784                 } else
4785                         return type;
4786         }
4787
4788
4789         // Check if this an enum declaration
4790         private boolean isEnumClass(String type) {
4791
4792                 // Just iterate over the set of interfaces
4793                 for (String intface : mapIntfacePTH.keySet()) {
4794                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4795                         EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface);
4796                         Set<String> setEnumDecl = enumDecl.getEnumDeclarations();
4797                         if (setEnumDecl.contains(type))
4798                                 return true;
4799                 }
4800                 return false;
4801         }
4802
4803
4804         // Check if this an struct declaration
4805         private boolean isStructClass(String type) {
4806
4807                 // Just iterate over the set of interfaces
4808                 for (String intface : mapIntfacePTH.keySet()) {
4809                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4810                         StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4811                         List<String> listStructDecl = structDecl.getStructTypes();
4812                         if (listStructDecl.contains(type))
4813                                 return true;
4814                 }
4815                 return false;
4816         }
4817
4818
4819         // Return a struct declaration
4820         private StructDecl getStructDecl(String type) {
4821
4822                 // Just iterate over the set of interfaces
4823                 for (String intface : mapIntfacePTH.keySet()) {
4824                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4825                         StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4826                         List<String> listStructDecl = structDecl.getStructTypes();
4827                         if (listStructDecl.contains(type))
4828                                 return structDecl;
4829                 }
4830                 return null;
4831         }
4832
4833
4834         // Return number of members (-1 if not found)
4835         private int getNumOfMembers(String type) {
4836
4837                 // Just iterate over the set of interfaces
4838                 for (String intface : mapIntfacePTH.keySet()) {
4839                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4840                         StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface);
4841                         List<String> listStructDecl = structDecl.getStructTypes();
4842                         if (listStructDecl.contains(type))
4843                                 return structDecl.getNumOfMembers(type);
4844                 }
4845                 return -1;
4846         }
4847
4848
4849         // Generate a set of classes for include statements
4850         private Set<String> getIncludeClasses(Collection<String> methods, InterfaceDecl intDecl, String intface, boolean needExchange) {
4851
4852                 Set<String> includeClasses = new HashSet<String>();
4853                 for (String method : methods) {
4854
4855                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4856                         List<String> methParams = intDecl.getMethodParams(method);
4857                         for (int i = 0; i < methPrmTypes.size(); i++) {
4858
4859                                 String genericType = getGenericType(methPrmTypes.get(i));
4860                                 String simpleType = getSimpleType(methPrmTypes.get(i));
4861                                 String param = methParams.get(i);
4862                                 if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) {
4863                                         includeClasses.add("<" + getNonPrimitiveCplusClass(simpleType) + ">");
4864                                 //} else if (getParamCategory(simpleType) == ParamCategory.USERDEFINED) {
4865                                 }
4866                                 if (getParamCategory(getSimpleArrayType(genericType)) == ParamCategory.USERDEFINED) {
4867                                         // For original interface, we need it exchanged... not for stub interfaces
4868                                         if (needExchange) {
4869                                                 //includeClasses.add("\"" + exchangeParamType(simpleType) + ".hpp\"");
4870                                                 includeClasses.add("\"" + exchangeParamType(getSimpleArrayType(genericType)) + ".hpp\"");
4871                                         } else {
4872                                                 //includeClasses.add("\"" + simpleType + ".hpp\"");
4873                                                 includeClasses.add("\"" + getSimpleArrayType(genericType) + ".hpp\"");
4874                                         }
4875                                 }
4876                                 if (getParamCategory(getSimpleArrayType(genericType)) == ParamCategory.ENUM) {
4877                                         includeClasses.add("\"" + genericType + ".hpp\"");
4878                                 }
4879                                 if (getParamCategory(getSimpleArrayType(genericType)) == ParamCategory.STRUCT) {
4880                                         includeClasses.add("\"" + genericType + ".hpp\"");
4881                                 }
4882                                 if (param.contains("[]")) {
4883                                 // Check if this is array for C++; translate into vector
4884                                         includeClasses.add("<vector>");
4885                                 }
4886                         }
4887                 }
4888                 return includeClasses;
4889         }
4890
4891
4892         // Generate a set of callback classes
4893         private Set<String> getCallbackClasses(Collection<String> methods, InterfaceDecl intDecl) {
4894
4895                 Set<String> callbackClasses = new HashSet<String>();
4896                 for (String method : methods) {
4897
4898                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4899                         List<String> methParams = intDecl.getMethodParams(method);
4900                         for (int i = 0; i < methPrmTypes.size(); i++) {
4901
4902                                 String type = methPrmTypes.get(i);
4903                                 if (getParamCategory(type) == ParamCategory.USERDEFINED) {
4904                                         callbackClasses.add(type);
4905                                 } else if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
4906                                 // Can be a List<...> of callback objects ...
4907                                         String genericType = getTypeOfGeneric(type)[0];
4908                                         if (getParamCategory(type) == ParamCategory.USERDEFINED) {
4909                                                 callbackClasses.add(type);
4910                                         }
4911                                 }
4912                         }
4913                 }
4914                 return callbackClasses;
4915         }
4916
4917
4918         // Check if this is a callback class
4919         private boolean isCallbackClass(String className) {
4920
4921                 Set<String> intfaceSet = mapIntDeclHand.keySet();
4922                 for(String intface : intfaceSet) {
4923
4924                         DeclarationHandler decHandler = mapIntDeclHand.get(intface);
4925                         InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface);
4926                         Map<String,Set<String>> mapNewIntMethods = mapInt2NewInts.get(intface);
4927                         for (Map.Entry<String,Set<String>> intMeth : mapNewIntMethods.entrySet()) {
4928                                 Set<String> methods = intMeth.getValue();
4929                                 for (String method : methods) {
4930
4931                                         List<String> methPrmTypes = intDecl.getMethodParamTypes(method);
4932                                         List<String> methParams = intDecl.getMethodParams(method);
4933                                         for (int i = 0; i < methPrmTypes.size(); i++) {
4934
4935                                                 String type = methPrmTypes.get(i);
4936                                                 if (getParamCategory(type) == ParamCategory.USERDEFINED) {
4937                                                         // Final check to see if this is the searched class
4938                                                         if (type.equals(className))
4939                                                                 return true;
4940                                                 } else if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
4941                                                 // Can be a List<...> of callback objects ...
4942                                                         String genericType = getTypeOfGeneric(type)[0];
4943                                                         if (getParamCategory(type) == ParamCategory.USERDEFINED) {
4944                                                                 if (type.equals(className))
4945                                                                         return true;
4946                                                         }
4947                                                 }
4948                                         }
4949                                 }
4950                         }
4951                 }
4952
4953                 return false;
4954         }
4955
4956
4957         // Print import statements into file
4958         private void printImportStatements(Collection<String> importClasses) {
4959
4960                 for(String cls : importClasses) {
4961                         println("import " + cls + ";");
4962                 }
4963         }
4964
4965
4966         // Print include statements into file
4967         private void printIncludeStatements(Collection<String> includeClasses) {
4968
4969                 for(String cls : includeClasses) {
4970                         println("#include " + cls);
4971                 }
4972         }
4973
4974
4975         // Get the C++ version of a non-primitive type
4976         // e.g. set for Set and map for Map
4977         // Input nonPrimitiveType has to be generics in format
4978         private String[] getTypeOfGeneric(String nonPrimitiveType) {
4979
4980                 // Handle <, >, and , for 2-type generic/template
4981                 String[] substr = nonPrimitiveType.split("<")[1].split(">")[0].split(",");
4982                 return substr;
4983         }
4984
4985
4986         // Gets generic type inside "<" and ">"
4987         private String getGenericType(String type) {
4988
4989                 // Handle <, >, and , for 2-type generic/template
4990                 if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) {
4991                         String[] substr = type.split("<")[1].split(">")[0].split(",");
4992                         return substr[0];
4993                 } else
4994                         return type;
4995         }
4996
4997
4998         // This helper function strips off array declaration, e.g. int[] becomes int
4999         private String getSimpleArrayType(String type) {
5000
5001                 // Handle [ for array declaration
5002                 String substr = type;
5003                 if (type.contains("[]")) {
5004                         substr = type.split("\\[\\]")[0];
5005                 }
5006                 return substr;
5007         }
5008
5009
5010         // This helper function strips off array declaration, e.g. D[] becomes D
5011         private String getSimpleIdentifier(String ident) {
5012
5013                 // Handle [ for array declaration
5014                 String substr = ident;
5015                 if (ident.contains("[]")) {
5016                         substr = ident.split("\\[\\]")[0];
5017                 }
5018                 return substr;
5019         }
5020
5021
5022         // Checks and gets type in C++
5023         private String checkAndGetCplusType(String paramType) {
5024
5025                 if (getParamCategory(paramType) == ParamCategory.PRIMITIVES) {
5026                         return convertType(paramType);
5027                 } else if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) {
5028
5029                         // Check for generic/template format
5030                         if (paramType.contains("<") && paramType.contains(">")) {
5031
5032                                 String genericClass = getSimpleType(paramType);
5033                                 String genericType = getGenericType(paramType);
5034                                 String cplusTemplate = null;
5035                                 cplusTemplate = getNonPrimitiveCplusClass(genericClass);
5036                                 if(getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED) {
5037                                         cplusTemplate = cplusTemplate + "<" + genericType + "*>";
5038                                 } else {
5039                                         cplusTemplate = cplusTemplate + "<" + convertType(genericType) + ">";
5040                                 }
5041                                 return cplusTemplate;
5042                         } else
5043                                 return getNonPrimitiveCplusClass(paramType);
5044                 } else if(paramType.contains("[]")) {   // Array type (used for return type only)
5045                         String cArray = "vector<" + convertType(getSimpleArrayType(paramType)) + ">";
5046                         return cArray;
5047                 } else if(getParamCategory(paramType) == ParamCategory.USERDEFINED) {
5048                         return paramType + "*";
5049                 } else
5050                         // Just return it as is if it's not non-primitives
5051                         return paramType;
5052         }
5053
5054
5055         // Detect array declaration, e.g. int A[],
5056         //              then generate "int A[]" in C++ as "vector<int> A"
5057         private String checkAndGetCplusArray(String paramType, String param) {
5058
5059                 String paramComplete = null;
5060                 // Check for array declaration
5061                 if (param.contains("[]")) {
5062                         paramComplete = "vector<" + paramType + "> " + param.replace("[]","");
5063                 } else
5064                         // Just return it as is if it's not an array
5065                         paramComplete = paramType + " " + param;
5066
5067                 return paramComplete;
5068         }
5069
5070
5071         // Detect array declaration, e.g. int A[],
5072         //              then generate "int A[]" in C++ as "vector<int> A"
5073         // This method just returns the type
5074         private String checkAndGetCplusArrayType(String paramType) {
5075
5076                 String paramTypeRet = null;
5077                 // Check for array declaration
5078                 if (paramType.contains("[]")) {
5079                         String type = paramType.split("\\[\\]")[0];
5080                         paramTypeRet = checkAndGetCplusType(type) + "[]";
5081                 } else if (paramType.contains("vector")) {
5082                         // Just return it as is if it's not an array
5083                         String type = paramType.split("<")[1].split(">")[0];
5084                         paramTypeRet = checkAndGetCplusType(type) + "[]";
5085                 } else
5086                         paramTypeRet = paramType;
5087
5088                 return paramTypeRet;
5089         }
5090
5091
5092         // Detect array declaration, e.g. int A[],
5093         //              then generate "int A[]" in C++ as "vector<int> A"
5094         // This method just returns the type
5095         private String checkAndGetCplusArrayType(String paramType, String param) {
5096
5097                 String paramTypeRet = null;
5098                 // Check for array declaration
5099                 if (param.contains("[]")) {
5100                         paramTypeRet = checkAndGetCplusType(paramType) + "[]";
5101                 } else if (paramType.contains("vector")) {
5102                         // Just return it as is if it's not an array
5103                         String type = paramType.split("<")[1].split(">")[0];
5104                         paramTypeRet = checkAndGetCplusType(type) + "[]";
5105                 } else
5106                         paramTypeRet = paramType;
5107
5108                 return paramTypeRet;
5109         }
5110
5111
5112         // Return the class type for class resolution (for return value)
5113         // - Check and return C++ array class, e.g. int A[] into int*
5114         // - Check and return C++ vector class, e.g. List<Integer> A into vector<int>
5115         private String checkAndGetCplusRetClsType(String paramType) {
5116
5117                 String paramTypeRet = null;
5118                 // Check for array declaration
5119                 if (paramType.contains("[]")) {
5120                         String type = paramType.split("\\[\\]")[0];
5121                         paramTypeRet = getSimpleArrayType(type) + "*";
5122                 } else if (paramType.contains("<") && paramType.contains(">")) {
5123                         // Just return it as is if it's not an array
5124                         String type = paramType.split("<")[1].split(">")[0];
5125                         paramTypeRet = "vector<" + getGenericType(type) + ">";
5126                 } else
5127                         paramTypeRet = paramType;
5128
5129                 return paramTypeRet;
5130         }
5131
5132
5133         // Return the class type for class resolution (for method arguments)
5134         // - Check and return C++ array class, e.g. int A[] into int*
5135         // - Check and return C++ vector class, e.g. List<Integer> A into vector<int>
5136         private String checkAndGetCplusArgClsType(String paramType, String param) {
5137
5138                 String paramTypeRet = getEnumCplusClsType(paramType);
5139                 if (!paramTypeRet.equals(paramType))
5140                 // Just return if it is an enum type
5141                 // Type will still be the same if it's not an enum type
5142                         return paramTypeRet;
5143
5144                 // Check for array declaration
5145                 if (param.contains("[]")) {
5146                         paramTypeRet = getSimpleArrayType(paramType) + "*";
5147                 } else if (paramType.contains("<") && paramType.contains(">")) {
5148                         // Just return it as is if it's not an array
5149                         String type = paramType.split("<")[1].split(">")[0];
5150                         paramTypeRet = "vector<" + getGenericType(type) + ">";
5151                 } else
5152                         paramTypeRet = paramType;
5153
5154                 return paramTypeRet;
5155         }
5156
5157
5158         // Detect array declaration, e.g. int A[],
5159         //              then generate type "int[]"
5160         private String checkAndGetArray(String paramType, String param) {
5161
5162                 String paramTypeRet = null;
5163                 // Check for array declaration
5164                 if (param.contains("[]")) {
5165                         paramTypeRet = paramType + "[]";
5166                 } else
5167                         // Just return it as is if it's not an array
5168                         paramTypeRet = paramType;
5169
5170                 return paramTypeRet;
5171         }
5172
5173
5174         // Is array or list?
5175         private boolean isArrayOrList(String paramType, String param) {
5176
5177                 // Check for array declaration
5178                 if (isArray(param))
5179                         return true;
5180                 else if (isList(paramType))
5181                         return true;
5182                 else
5183                         return false;
5184         }
5185
5186
5187         // Is array?
5188         // For return type we use retType as input parameter
5189         private boolean isArray(String param) {
5190
5191                 // Check for array declaration
5192                 if (param.contains("[]"))
5193                         return true;
5194                 else
5195                         return false;
5196         }
5197
5198
5199         // Is list?
5200         private boolean isList(String paramType) {
5201
5202                 // Check for array declaration
5203                 if (paramType.contains("List"))
5204                         return true;
5205                 else
5206                         return false;
5207         }
5208
5209
5210         // Get the right type for a callback object
5211         private String checkAndGetParamClass(String paramType) {
5212
5213                 // Check if this is generics
5214                 if(getParamCategory(paramType) == ParamCategory.USERDEFINED) {
5215                         return exchangeParamType(paramType);
5216                 } else if (isList(paramType) &&
5217                                 (getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED)) {
5218                         return "List<" + exchangeParamType(getGenericType(paramType)) + ">";
5219                 } else
5220                         return paramType;
5221         }
5222
5223
5224         // Returns the other interface for type-checking purposes for USERDEFINED
5225         //              classes based on the information provided in multiple policy files
5226         // e.g. return CameraWithXXX instead of Camera
5227         private String exchangeParamType(String intface) {
5228
5229                 // Param type that's passed is the interface name we need to look for
5230                 //              in the map of interfaces, based on available policy files.
5231                 DeclarationHandler decHandler = mapIntDeclHand.get(intface);
5232                 if (decHandler != null) {
5233                 // We've found the required interface policy files
5234                         RequiresDecl reqDecl = (RequiresDecl) decHandler.getRequiresDecl(intface);
5235                         Set<String> setExchInt = reqDecl.getInterfaces();
5236                         if (setExchInt.size() == 1) {
5237                                 Iterator iter = setExchInt.iterator();
5238                                 return (String) iter.next();
5239                         } else {
5240                                 throw new Error("IoTCompiler: Ambiguous stub interfaces: " + setExchInt.toString() +
5241                                         ". Only one new interface can be declared if the object " + intface +
5242                                         " needs to be passed in as an input parameter!\n");
5243                         }
5244                 } else {
5245                 // NULL value - this means policy files missing
5246                         throw new Error("IoTCompiler: Parameter type lookup failed for " + intface +
5247                                 "... Please provide the necessary policy files for user-defined types." +
5248                                 " If this is an array please type the brackets after the variable name," +
5249                                 " e.g. \"String str[]\", not \"String[] str\"." +
5250                                 " If this is a Collections (Java) / STL (C++) type, this compiler only" +
5251                                 " supports List/ArrayList (Java) or list (C++).\n");
5252                 }
5253         }
5254
5255
5256         public static void main(String[] args) throws Exception {
5257
5258                 // If there is no argument or just "--help" or "-h", then invoke printUsage()
5259                 if ((args.length == 0        ||
5260                          args[0].equals("-help") ||
5261                          args[0].equals("--help")||
5262                          args[0].equals("-h"))) {
5263
5264                         IoTCompiler.printUsage();
5265
5266                 } else if (args.length > 1) {
5267
5268                         IoTCompiler comp = new IoTCompiler();
5269                         int i = 0;
5270                         //boolean driverDefined = false;
5271                         boolean controllerDefined = false;
5272                         do {
5273                                 if (!controllerDefined && args[i].equals("-cont")) {
5274                                         comp.setControllerClass(args[i+1]);
5275                                         controllerDefined = true;
5276                                         i = i + 2;
5277                                 }
5278                             // Parse main policy file
5279                             ParseNode pnPol = IoTCompiler.parseFile(args[i]);
5280                             // Parse "requires" policy file
5281                             ParseNode pnReq = IoTCompiler.parseFile(args[i+1]);
5282                             // Get interface name
5283                             String intface = ParseTreeHandler.getOrigIntface(pnPol);
5284                             comp.setDataStructures(intface, pnPol, pnReq);
5285                             comp.getMethodsForIntface(intface);
5286                                 i = i + 2;
5287                                 if (args[i].equals("-drv")) {
5288                                         comp.setDriverClass(intface, args[i+1]);
5289                                         i = i + 2;
5290                                 } else
5291                                         throw new Error("IoTCompiler: ERROR - driver class name is needed for the interface: " + intface + "\n");
5292                         // 1) Check if this is the last option before "-java" or "-cplus"
5293                         // 2) Check if this is really the last option
5294                         } while(!args[i].equals("-java") &&
5295                                         !args[i].equals("-cplus") &&
5296                                         (i < args.length));
5297                         // Controller class name needs to be defined at least once
5298                         if (!controllerDefined)
5299                                 throw new Error("IoTCompiler: ERROR - controller class name has not been specified!\n");
5300
5301                         // Generate everything if we don't see "-java" or "-cplus"
5302                         if (i == args.length) {
5303                                 comp.generateEnumJava();
5304                                 comp.generateStructJava();
5305                                 comp.generateJavaLocalInterfaces();
5306                                 comp.generateJavaInterfaces();
5307                                 comp.generateJavaStubClasses();
5308                                 comp.generateJavaSkeletonClass();
5309                                 comp.generateEnumCplus();
5310                                 comp.generateStructCplus();
5311                                 comp.generateCplusLocalInterfaces();
5312                                 comp.generateCPlusInterfaces();
5313                                 comp.generateCPlusStubClassesHpp();
5314                                 comp.generateCPlusStubClassesCpp();
5315                                 comp.generateCplusSkeletonClassHpp();
5316                                 comp.generateCplusSkeletonClassCpp();
5317                         } else {
5318                         // Check other options
5319                                 while(i < args.length) {
5320                                         // Error checking
5321                                         if (!args[i].equals("-java") &&
5322                                                 !args[i].equals("-cplus")) {
5323                                                 throw new Error("IoTCompiler: ERROR - unrecognized command line option: " + args[i] + "\n");
5324                                         } else {
5325                                                 if (i + 1 < args.length) {
5326                                                         comp.setDirectory(args[i+1]);
5327                                                 } else
5328                                                         throw new Error("IoTCompiler: ERROR - please provide <directory> after option: " + args[i] + "\n");
5329
5330                                                 if (args[i].equals("-java")) {
5331                                                         comp.generateEnumJava();
5332                                                         comp.generateStructJava();
5333                                                         comp.generateJavaLocalInterfaces();
5334                                                         comp.generateJavaInterfaces();
5335                                                         comp.generateJavaStubClasses();
5336                                                         comp.generateJavaSkeletonClass();
5337                                                 } else {
5338                                                         comp.generateEnumCplus();
5339                                                         comp.generateStructCplus();
5340                                                         comp.generateCplusLocalInterfaces();
5341                                                         comp.generateCPlusInterfaces();
5342                                                         comp.generateCPlusStubClassesHpp();
5343                                                         comp.generateCPlusStubClassesCpp();
5344                                                         comp.generateCplusSkeletonClassHpp();
5345                                                         comp.generateCplusSkeletonClassCpp();
5346                                                 }
5347                                         }
5348                                         i = i + 2;
5349                                 }
5350                         }
5351                 } else {
5352                 // Need to at least have exactly 2 parameters, i.e. main policy file and requires file
5353                         IoTCompiler.printUsage();
5354                         throw new Error("IoTCompiler: At least two arguments (main and requires policy files) have to be provided!\n");
5355                 }
5356         }
5357 }
5358
5359
5360