X-Git-Url: http://plrg.eecs.uci.edu/git/?p=iot2.git;a=blobdiff_plain;f=iotjava%2Fiotpolicy%2FIoTCompiler.java;h=a1144919e47a8f3e8e62be71e4fb692d9fe7c4f5;hp=9c6a16aad378302e185fecc20240f6fa0d3d8039;hb=903f2886824222a912502db3fdf432e4351141e6;hpb=7c4edd552766ca89566cf033bc2320483204c625 diff --git a/iotjava/iotpolicy/IoTCompiler.java b/iotjava/iotpolicy/IoTCompiler.java index 9c6a16a..a114491 100644 --- a/iotjava/iotpolicy/IoTCompiler.java +++ b/iotjava/iotpolicy/IoTCompiler.java @@ -48,6 +48,7 @@ public class IoTCompiler { private Map mapIntfacePTH; private Map mapIntDeclHand; private Map>> mapInt2NewInts; + private Map mapInt2NewIntName; // Data structure to store our types (primitives and non-primitives) for compilation private Map mapPrimitives; private Map mapNonPrimitivesJava; @@ -58,6 +59,11 @@ public class IoTCompiler { private PrintWriter pw; private String dir; private String subdir; + private Map mapPortCount; // Counter for ports + private static int portCount = 0; + private static int countObjId = 1; // Always increment object Id for a new stub/skeleton + private String mainClass; + /** * Class constants @@ -68,9 +74,12 @@ public class IoTCompiler { PRIMITIVES, // All the primitive types, e.g. byte, short, int, long, etc. NONPRIMITIVES, // Non-primitive types, e.g. Set, Map, List, etc. - USERDEFINED // Non-supported type by default; assumed as driver classes + ENUM, // Enum type + STRUCT, // Struct type + USERDEFINED // Assumed as driver classes } + /** * Class constructors */ @@ -79,6 +88,7 @@ public class IoTCompiler { mapIntfacePTH = new HashMap(); mapIntDeclHand = new HashMap(); mapInt2NewInts = new HashMap>>(); + mapInt2NewIntName = new HashMap(); mapIntfaceObjId = new HashMap(); mapNewIntfaceObjId = new HashMap(); mapPrimitives = new HashMap(); @@ -87,9 +97,11 @@ public class IoTCompiler { arraysToMap(mapNonPrimitivesJava, IoTRMITypes.nonPrimitivesJava, IoTRMITypes.nonPrimitiveJavaLibs); mapNonPrimitivesCplus = new HashMap(); arraysToMap(mapNonPrimitivesCplus, IoTRMITypes.nonPrimitivesJava, IoTRMITypes.nonPrimitivesCplus); + mapPortCount = new HashMap(); pw = null; dir = OUTPUT_DIRECTORY; subdir = null; + mainClass = null; } @@ -102,7 +114,6 @@ public class IoTCompiler { * data structures. * Additionally, the data structure handles are * returned from tree-parsing for further process. - * */ public void setDataStructures(String origInt, ParseNode pnPol, ParseNode pnReq) { @@ -133,7 +144,7 @@ public class IoTCompiler { mapIntfacePTH.put(origInt, ptHandler); mapIntDeclHand.put(origInt, decHandler); // Set object Id counter to 0 for each interface - mapIntfaceObjId.put(origInt, new Integer(0)); + mapIntfaceObjId.put(origInt, countObjId++); } @@ -174,14 +185,23 @@ public class IoTCompiler { } // Add interface and methods information into map mapNewIntMethods.put(strInt, setMethods); + // Map new interface method name to the original interface + // TODO: perhaps need to check in the future if we have more than 1 stub interface for one original interface + mapInt2NewIntName.put(origInt, strInt); + if (mainClass == null) // Take the first class as the main class (whichever is placed first in the order of compilation files) + mainClass = origInt; } // Map the map of interface-methods to the original interface mapInt2NewInts.put(origInt, mapNewIntMethods); } + +/*================ + * Java generation + *================/ /** - * HELPER: writeMethodJavaLocalInterface() writes the method of the interface + * HELPER: writeMethodJavaLocalInterface() writes the method of the local interface */ private void writeMethodJavaLocalInterface(Collection methods, InterfaceDecl intDecl) { @@ -194,7 +214,7 @@ public class IoTCompiler { for (int i = 0; i < methParams.size(); i++) { // Check for params with driver class types and exchange it // with its remote interface - String paramType = checkAndGetParamClass(methPrmTypes.get(i), false); + String paramType = checkAndGetParamClass(methPrmTypes.get(i)); print(paramType + " " + methParams.get(i)); // Check if this is the last element (don't print a comma) if (i != methParams.size() - 1) { @@ -233,50 +253,72 @@ public class IoTCompiler { /** - * HELPER: writeEnumJava() writes the enumeration declaration + * HELPER: generateEnumJava() writes the enumeration declaration */ - private void writeEnumJava(EnumDecl enumDecl) { - - Set enumTypes = enumDecl.getEnumDeclarations(); - // Iterate over enum declarations - for (String enType : enumTypes) { + private void generateEnumJava() throws IOException { - println("public enum " + enType + " {"); - List enumMembers = enumDecl.getMembers(enType); - for (int i = 0; i < enumMembers.size(); i++) { - - String member = enumMembers.get(i); - print(member); - // Check if this is the last element (don't print a comma) - if (i != enumMembers.size() - 1) - println(","); - else - println(""); + // Create a new directory + createDirectory(dir); + for (String intface : mapIntfacePTH.keySet()) { + // Get the right EnumDecl + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface); + Set enumTypes = enumDecl.getEnumDeclarations(); + // Iterate over enum declarations + for (String enType : enumTypes) { + // Open a new file to write into + FileWriter fw = new FileWriter(dir + "/" + enType + ".java"); + pw = new PrintWriter(new BufferedWriter(fw)); + println("public enum " + enType + " {"); + List enumMembers = enumDecl.getMembers(enType); + for (int i = 0; i < enumMembers.size(); i++) { + + String member = enumMembers.get(i); + print(member); + // Check if this is the last element (don't print a comma) + if (i != enumMembers.size() - 1) + println(","); + else + println(""); + } + println("}\n"); + pw.close(); + System.out.println("IoTCompiler: Generated enum class " + enType + ".java..."); } - println("}\n"); } } /** - * HELPER: writeStructJava() writes the struct declaration + * HELPER: generateStructJava() writes the struct declaration */ - private void writeStructJava(StructDecl structDecl) { - - List structTypes = structDecl.getStructTypes(); - // Iterate over enum declarations - for (String stType : structTypes) { + private void generateStructJava() throws IOException { - println("public class " + stType + " {"); - List structMemberTypes = structDecl.getMemberTypes(stType); - List structMembers = structDecl.getMembers(stType); - for (int i = 0; i < structMembers.size(); i++) { - - String memberType = structMemberTypes.get(i); - String member = structMembers.get(i); - println("public static " + memberType + " " + member + ";"); + // Create a new directory + createDirectory(dir); + for (String intface : mapIntfacePTH.keySet()) { + // Get the right StructDecl + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); + List structTypes = structDecl.getStructTypes(); + // Iterate over enum declarations + for (String stType : structTypes) { + // Open a new file to write into + FileWriter fw = new FileWriter(dir + "/" + stType + ".java"); + pw = new PrintWriter(new BufferedWriter(fw)); + println("public class " + stType + " {"); + List structMemberTypes = structDecl.getMemberTypes(stType); + List structMembers = structDecl.getMembers(stType); + for (int i = 0; i < structMembers.size(); i++) { + + String memberType = structMemberTypes.get(i); + String member = structMembers.get(i); + println("public static " + memberType + " " + member + ";"); + } + println("}\n"); + pw.close(); + System.out.println("IoTCompiler: Generated struct class " + stType + ".java..."); } - println("}\n"); } } @@ -302,16 +344,12 @@ public class IoTCompiler { InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); List methods = intDecl.getMethods(); Set importClasses = getImportClasses(methods, intDecl); - printImportStatements(importClasses); + List stdImportClasses = getStandardJavaIntfaceImportClasses(); + List allImportClasses = getAllLibClasses(stdImportClasses, importClasses); + printImportStatements(allImportClasses); // Write interface header println(""); println("public interface " + intface + " {"); - // Write enum if any... - EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface); - writeEnumJava(enumDecl); - // Write struct if any... - StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); - writeStructJava(structDecl); // Write methods writeMethodJavaLocalInterface(methods, intDecl); println("}"); @@ -321,6 +359,17 @@ public class IoTCompiler { } + /** + * HELPER: updateIntfaceObjIdMap() updates the mapping between new interface and object Id + */ + private void updateIntfaceObjIdMap(String intface, String newIntface) { + + // We are assuming that we only generate one stub per one skeleton at this point @Feb 2017 + Integer objId = mapIntfaceObjId.get(intface); + mapNewIntfaceObjId.put(newIntface, objId); + } + + /** * generateJavaInterfaces() generate stub interfaces based on the methods list in Java */ @@ -340,13 +389,17 @@ public class IoTCompiler { DeclarationHandler decHandler = mapIntDeclHand.get(intface); InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); // Pass in set of methods and get import classes - Set importClasses = getImportClasses(intMeth.getValue(), intDecl); - printImportStatements(importClasses); + Set methods = intMeth.getValue(); + Set importClasses = getImportClasses(methods, intDecl); + List stdImportClasses = getStandardJavaIntfaceImportClasses(); + List allImportClasses = getAllLibClasses(stdImportClasses, importClasses); + printImportStatements(allImportClasses); // Write interface header println(""); println("public interface " + newIntface + " {\n"); + updateIntfaceObjIdMap(intface, newIntface); // Write methods - writeMethodJavaInterface(intMeth.getValue(), intDecl); + writeMethodJavaInterface(methods, intDecl); println("}"); pw.close(); System.out.println("IoTCompiler: Generated interface " + newIntface + ".java..."); @@ -355,369 +408,709 @@ public class IoTCompiler { } + /** + * HELPER: writePropertiesJavaPermission() writes the permission in properties + */ + private void writePropertiesJavaPermission(String intface, InterfaceDecl intDecl) { + + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + //println("private final static int object" + newObjectId + "Id = " + + // newObjectId + ";\t//" + newIntface); + Set methodIds = intMeth.getValue(); + print("private static Integer[] object" + newObjectId + "Permission = { "); + int i = 0; + for (String methodId : methodIds) { + int methodNumId = intDecl.getMethodNumId(methodId); + print(Integer.toString(methodNumId)); + // Check if this is the last element (don't print a comma) + if (i != methodIds.size() - 1) { + print(", "); + } + i++; + } + println(" };"); + println("private static List set" + newObjectId + "Allowed;"); + } + } + + /** * HELPER: writePropertiesJavaStub() writes the properties of the stub class */ - private void writePropertiesJavaStub(String intface, String newIntface, boolean callbackExist, Set callbackClasses) { + private void writePropertiesJavaStub(String intface, Set methods, InterfaceDecl intDecl) { - println("private IoTRMICall rmiCall;"); - println("private String address;"); - println("private int[] ports;\n"); // Get the object Id Integer objId = mapIntfaceObjId.get(intface); - println("private final static int objectId = " + objId + ";"); - mapNewIntfaceObjId.put(newIntface, objId); - mapIntfaceObjId.put(intface, objId++); - if (callbackExist) { - // We assume that each class only has one callback interface for now - Iterator it = callbackClasses.iterator(); - String callbackType = (String) it.next(); - println("// Callback properties"); - println("private IoTRMIObject rmiObj;"); - println("List<" + callbackType + "> listCallbackObj;"); - println("private static int objIdCnt = 0;"); + println("private int objectId = " + objId + ";"); + println("private IoTRMIComm rmiComm;"); + // Write the list of AtomicBoolean variables + println("// Synchronization variables"); + for (String method : methods) { + // Generate AtomicBooleans for methods that have return values + String returnType = intDecl.getMethodType(method); + int methodNumId = intDecl.getMethodNumId(method); + if (!returnType.equals("void")) { + println("private AtomicBoolean retValueReceived" + methodNumId + " = new AtomicBoolean(false);"); + } } println("\n"); } /** - * HELPER: writeConstructorJavaStub() writes the constructor of the stub class + * HELPER: writeConstructorJavaPermission() writes the permission in constructor */ - private void writeConstructorJavaStub(String intface, boolean callbackExist, Set callbackClasses) { + private void writeConstructorJavaPermission(String intface) { - println("public " + intface + "(int _port, String _address, int _rev, int[] _ports) throws Exception {"); - println("address = _address;"); - println("ports = _ports;"); - println("rmiCall = new IoTRMICall(_port, _address, _rev);"); - if (callbackExist) { - Iterator it = callbackClasses.iterator(); - String callbackType = (String) it.next(); - println("listCallbackObj = new ArrayList<" + callbackType + ">();"); - println("___initCallBack();"); + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + println("set" + newObjectId + "Allowed = new ArrayList(Arrays.asList(object" + newObjectId +"Permission));"); } - println("}\n"); } /** * HELPER: writeConstructorJavaStub() writes the constructor of the stub class */ - private void writeInitCallbackJavaStub(String intface, InterfaceDecl intDecl) { - - println("public void ___initCallBack() {"); - // Generate main thread for callbacks - println("Thread thread = new Thread() {"); - println("public void run() {"); - println("try {"); - println("rmiObj = new IoTRMIObject(ports[0]);"); - println("while (true) {"); - println("byte[] method = rmiObj.getMethodBytes();"); - println("int objId = IoTRMIObject.getObjectId(method);"); - println(intface + "_CallbackSkeleton skel = (" + intface + "_CallbackSkeleton) listCallbackObj.get(objId);"); - println("if (skel != null) {"); - println("skel.invokeMethod(rmiObj);"); - println("} else {"); - println("throw new Error(\"" + intface + ": Object with Id \" + objId + \" not found!\");"); - println("}"); - println("}"); - println("} catch (Exception ex) {"); - println("ex.printStackTrace();"); - println("throw new Error(\"Error instantiating class " + intface + "_CallbackSkeleton!\");"); + private void writeConstructorJavaStub(String intface, String newStubClass, Set methods, InterfaceDecl intDecl) { + + println("public " + newStubClass + "(int _localPortSend, int _localPortRecv, int _portSend, int _portRecv, String _skeletonAddress, int _rev) throws Exception {"); + println("if (_localPortSend != 0 && _localPortRecv != 0) {"); + println("rmiComm = new IoTRMICommClient(_localPortSend, _localPortRecv, _portSend, _portRecv, _skeletonAddress, _rev);"); + println("} else"); + println("{"); + println("rmiComm = new IoTRMICommClient(_portSend, _portRecv, _skeletonAddress, _rev);"); println("}"); - println("}"); - println("};"); - println("thread.start();\n"); - // Generate info sending part - String method = "___initCallBack()"; - println("int methodId = " + intDecl.getHelperMethodNumId(method) + ";"); - println("Class retType = void.class;"); - println("Class[] paramCls = new Class[] { int.class, String.class, int.class };"); - println("Object[] paramObj = new Object[] { ports[0], address, 0 };"); - println("rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);"); + // Register the AtomicBoolean variables + for (String method : methods) { + // Generate AtomicBooleans for methods that have return values + String returnType = intDecl.getMethodType(method); + int methodNumId = intDecl.getMethodNumId(method); + if (!returnType.equals("void")) { + println("rmiComm.registerStub(objectId, " + methodNumId + ", retValueReceived" + methodNumId + ");"); + } + } + println("IoTRMIUtil.mapStub.put(objectId, this);"); println("}\n"); } /** - * HELPER: writeStdMethodBodyJavaStub() writes the standard method body in the stub class + * HELPER: writeCallbackConstructorJavaStub() writes the callback constructor of the stub class */ - private void writeStdMethodBodyJavaStub(InterfaceDecl intDecl, List methParams, - List methPrmTypes, String method) { + private void writeCallbackConstructorJavaStub(String intface, String newStubClass, Set methods, InterfaceDecl intDecl) { - println("int methodId = " + intDecl.getMethodNumId(method) + ";"); - String retType = intDecl.getMethodType(method); - println("Class retType = " + getSimpleType(retType) + ".class;"); - // Generate array of parameter types - print("Class[] paramCls = new Class[] { "); - for (int i = 0; i < methParams.size(); i++) { - String paramType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); - print(getSimpleType(paramType) + ".class"); - // Check if this is the last element (don't print a comma) - if (i != methParams.size() - 1) { - print(", "); - } - } - println(" };"); - // Generate array of parameter objects - print("Object[] paramObj = new Object[] { "); - for (int i = 0; i < methParams.size(); i++) { - print(getSimpleIdentifier(methParams.get(i))); - // Check if this is the last element (don't print a comma) - if (i != methParams.size() - 1) { - print(", "); - } - } - println(" };"); - // Check if this is "void" - if (retType.equals("void")) { - println("rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);"); - } else { // We do have a return value - // Check if the return value NONPRIMITIVES - if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) { - String[] retGenValType = getTypeOfGeneric(retType); - println("Class retGenValType = " + retGenValType[0] + ".class;"); - println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, retGenValType, paramCls, paramObj);"); - println("return (" + retType + ")retObj;"); - } else { - println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);"); - println("return (" + retType + ")retObj;"); + println("public " + newStubClass + "(IoTRMIComm _rmiComm, int _objectId) throws Exception {"); + println("rmiComm = _rmiComm;"); + println("objectId = _objectId;"); + // Register the AtomicBoolean variables + for (String method : methods) { + // Generate AtomicBooleans for methods that have return values + String returnType = intDecl.getMethodType(method); + int methodNumId = intDecl.getMethodNumId(method); + if (!returnType.equals("void")) { + println("rmiComm.registerStub(objectId, " + methodNumId + ", retValueReceived" + methodNumId + ");"); } } + println("}\n"); } /** - * HELPER: checkCallbackType() checks the callback type + * HELPER: getPortCount() gets port count for different stubs and skeletons */ - private boolean checkCallbackType(String paramType, String callbackType) { + private int getPortCount(String intface) { - if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) - paramType = getTypeOfGeneric(paramType)[0]; - return callbackType.equals(paramType); + if (!mapPortCount.containsKey(intface)) + mapPortCount.put(intface, portCount++); + return mapPortCount.get(intface); } /** - * HELPER: writeCallbackMethodBodyJavaStub() writes the callback method of the stub class + * HELPER: checkAndWriteEnumTypeJavaStub() writes the enum type (convert from enum to int) */ - private void writeCallbackMethodBodyJavaStub(InterfaceDecl intDecl, List methParams, - List methPrmTypes, String method, String callbackType) { + private void checkAndWriteEnumTypeJavaStub(List methParams, List methPrmTypes) { - println("try {"); - // Check if this is single object, array, or list of objects + // Iterate and find enum declarations for (int i = 0; i < methParams.size(); i++) { - String paramType = methPrmTypes.get(i); - if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object - String param = methParams.get(i); - if (isArrayOrList(paramType, param)) { // Generate loop - println("for (" + paramType + " cb : " + getSimpleIdentifier(param) + ") {"); - println(callbackType + "_CallbackSkeleton skel = new " + callbackType + "_CallbackSkeleton(cb, objIdCnt++);"); - } else - println(callbackType + "_CallbackSkeleton skel = new " + callbackType + "_CallbackSkeleton(" + - getSimpleIdentifier(param) + ", objIdCnt++);"); - println("listCallbackObj.add(skel);"); - if (isArrayOrList(paramType, param)) + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isEnumClass(simpleType)) { + // Check if this is enum type + if (isArray(param)) { // An array + println("int len" + i + " = " + getSimpleIdentifier(param) + ".length;"); + println("int paramEnum" + i + "[] = new int[len" + i + "];"); + println("for (int i = 0; i < len" + i + "; i++) {"); + println("paramEnum" + i + "[i] = " + getSimpleIdentifier(param) + "[i].ordinal();"); + println("}"); + } else if (isList(paramType)) { // A list + println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();"); + println("int paramEnum" + i + "[] = new int[len" + i + "];"); + println("for (int i = 0; i < len" + i + "; i++) {"); + println("paramEnum" + i + "[i] = " + getSimpleIdentifier(param) + ".get(i).ordinal();"); println("}"); + } else { // Just one element + println("int paramEnum" + i + "[] = new int[1];"); + println("paramEnum" + i + "[0] = " + param + ".ordinal();"); + } } } - println("} catch (Exception ex) {"); - println("ex.printStackTrace();"); - println("throw new Error(\"Exception when generating skeleton objects!\");"); - println("}\n"); - println("int methodId = " + intDecl.getMethodNumId(method) + ";"); - String retType = intDecl.getMethodType(method); - println("Class retType = " + getSimpleType(retType) + ".class;"); - // Generate array of parameter types - print("Class[] paramCls = new Class[] { "); - for (int i = 0; i < methParams.size(); i++) { - String paramType = methPrmTypes.get(i); - if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object - print("int.class"); - } else { // Generate normal classes if it's not a callback object - String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); - print(getSimpleType(prmType) + ".class"); + } + + + /** + * HELPER: checkAndWriteEnumRetTypeJavaStub() writes the enum return type (convert from enum to int) + */ + private void checkAndWriteEnumRetTypeJavaStub(String retType, String method, InterfaceDecl intDecl) { + + // Write the wait-for-return-value part + writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, null);"); + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(getGenericType(retType)); + // Take the inner type of generic + if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(retType); + if (isEnumClass(pureType)) { + // Check if this is enum type + // Enum decoder + println("int[] retEnum = (int[]) retObj;"); + println(pureType + "[] enumVals = " + pureType + ".values();"); + if (isArray(retType)) { // An array + println("int retLen = retEnum.length;"); + println(pureType + "[] enumRetVal = new " + pureType + "[retLen];"); + println("for (int i = 0; i < retLen; i++) {"); + println("enumRetVal[i] = enumVals[retEnum[i]];"); + println("}"); + } else if (isList(retType)) { // A list + println("int retLen = retEnum.length;"); + println("List<" + pureType + "> enumRetVal = new ArrayList<" + pureType + ">();"); + println("for (int i = 0; i < retLen; i++) {"); + println("enumRetVal.add(enumVals[retEnum[i]]);"); + println("}"); + } else { // Just one element + println(pureType + " enumRetVal = enumVals[retEnum[0]];"); } - if (i != methParams.size() - 1) // Check if this is the last element - print(", "); + println("return enumRetVal;"); } - println(" };"); - // Generate array of parameter objects - print("Object[] paramObj = new Object[] { "); + } + + + /** + * HELPER: checkAndWriteStructSetupJavaStub() writes the struct type setup + */ + private void checkAndWriteStructSetupJavaStub(List methParams, List methPrmTypes, + InterfaceDecl intDecl, String method) { + + // Iterate and find struct declarations for (int i = 0; i < methParams.size(); i++) { String paramType = methPrmTypes.get(i); - if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object - if (isArray(methPrmTypes.get(i), methParams.get(i))) - print(getSimpleIdentifier(methParams.get(i)) + ".length"); - else if (isList(methPrmTypes.get(i), methParams.get(i))) - print(getSimpleIdentifier(methParams.get(i)) + ".size()"); - else - print("new Integer(1)"); - } else - print(getSimpleIdentifier(methParams.get(i))); - if (i != methParams.size() - 1) - print(", "); - } - println(" };"); - // Check if this is "void" - if (retType.equals("void")) { - println("rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);"); - } else { // We do have a return value - // Check if the return value NONPRIMITIVES - if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) { - String[] retGenValType = getTypeOfGeneric(retType); - println("Class retGenValType = " + retGenValType[0] + ".class;"); - println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, retGenValType, paramCls, paramObj);"); - println("return (" + retType + ")retObj;"); - } else { - println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);"); - println("return (" + retType + ")retObj;"); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + // Check if this is enum type + int methodNumId = intDecl.getMethodNumId(method); + String helperMethod = methodNumId + "struct" + i; + println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";"); + println("Class[] paramClsStruct" + i + " = new Class[] { int.class };"); + if (isArray(param)) { // An array + println("Object[] paramObjStruct" + i + " = new Object[] { " + getSimpleArrayType(param) + ".length };"); + } else if (isList(paramType)) { // A list + println("Object[] paramObjStruct" + i + " = new Object[] { " + getSimpleArrayType(param) + ".size() };"); + } else { // Just one element + println("Object[] paramObjStruct" + i + " = new Object[] { new Integer(1) };"); + } + println("rmiComm.remoteCall(objectId, methodIdStruct" + i + + ", paramClsStruct" + i + ", paramObjStruct" + i + ");\n"); } } } /** - * HELPER: writeMethodJavaStub() writes the method of the stub class + * HELPER: isStructPresent() checks presence of struct */ - private void writeMethodJavaStub(Collection methods, InterfaceDecl intDecl, Set callbackClasses) { - - for (String method : methods) { - - List methParams = intDecl.getMethodParams(method); - List methPrmTypes = intDecl.getMethodParamTypes(method); - print("public " + intDecl.getMethodType(method) + " " + - intDecl.getMethodId(method) + "("); - boolean isCallbackMethod = false; - String callbackType = null; - for (int i = 0; i < methParams.size(); i++) { + private boolean isStructPresent(List methParams, List methPrmTypes) { - String paramType = methPrmTypes.get(i); - if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) - paramType = getTypeOfGeneric(paramType)[0]; - // Check if this has callback object - if (callbackClasses != null) { - if (callbackClasses.contains(paramType)) { - isCallbackMethod = true; - callbackType = paramType; - // Even if there're 2 callback arguments, we expect them to be of the same interface - } - } - print(methPrmTypes.get(i) + " " + methParams.get(i)); - // Check if this is the last element (don't print a comma) - if (i != methParams.size() - 1) { - print(", "); - } - } - println(") {"); - // Now, write the body of stub! - if (isCallbackMethod) - writeCallbackMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method, callbackType); - else - writeStdMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method); - println("}\n"); - // Write the init callback helper method - if (isCallbackMethod) - writeInitCallbackJavaStub(callbackType, intDecl); + // Iterate and find enum declarations + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) + return true; } + return false; } /** - * generateJavaStubClasses() generate stubs based on the methods list in Java + * HELPER: writeLengthStructParamClassJavaStub() writes lengths of parameters */ - public void generateJavaStubClasses() throws IOException { - - // Create a new directory - String path = createDirectories(dir, subdir); - for (String intface : mapIntfacePTH.keySet()) { - - Map> mapNewIntMethods = mapInt2NewInts.get(intface); - for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + private void writeLengthStructParamClassJavaStub(List methParams, List methPrmTypes) { - // Open a new file to write into - String newIntface = intMeth.getKey(); - String newStubClass = newIntface + "_Stub"; - FileWriter fw = new FileWriter(path + "/" + newStubClass + ".java"); - pw = new PrintWriter(new BufferedWriter(fw)); - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - // Pass in set of methods and get import classes - Set methods = intMeth.getValue(); - Set importClasses = getImportClasses(methods, intDecl); - List stdImportClasses = getStandardJavaImportClasses(); - List allImportClasses = getAllImportClasses(stdImportClasses, importClasses); - printImportStatements(allImportClasses); println(""); - // Find out if there are callback objects - Set callbackClasses = getCallbackClasses(methods, intDecl); - boolean callbackExist = !callbackClasses.isEmpty(); - // Write class header - println("public class " + newStubClass + " implements " + newIntface + " {\n"); - // Write properties - writePropertiesJavaStub(intface, newIntface, callbackExist, callbackClasses); - // Write constructor - writeConstructorJavaStub(newStubClass, callbackExist, callbackClasses); - // Write methods - writeMethodJavaStub(intMeth.getValue(), intDecl, callbackClasses); - println("}"); - pw.close(); - System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".java..."); + // Iterate and find struct declarations - count number of params + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int members = getNumOfMembers(simpleType); + if (isArray(param)) { // An array + String structLen = getSimpleArrayType(param) + ".length"; + print(members + "*" + structLen); + } else if (isList(paramType)) { // A list + String structLen = getSimpleArrayType(param) + ".size()"; + print(members + "*" + structLen); + } else + print(Integer.toString(members)); + } else + print("1"); + if (i != methParams.size() - 1) { + print("+"); } } } /** - * HELPER: writePropertiesJavaCallbackStub() writes the properties of the callback stub class + * HELPER: writeStructMembersJavaStub() writes parameters of struct */ - private void writePropertiesJavaCallbackStub(String intface, String newIntface, boolean callbackExist, Set callbackClasses) { - - println("private IoTRMICall rmiCall;"); - // Get the object Id - println("private static int objectId = 0;"); - if (callbackExist) { - // We assume that each class only has one callback interface for now - Iterator it = callbackClasses.iterator(); - String callbackType = (String) it.next(); - println("// Callback properties"); - println("private IoTRMIObject rmiObj;"); - println("List<" + callbackType + "> listCallbackObj;"); - println("private static int objIdCnt = 0;"); + private void writeStructMembersJavaStub(String simpleType, String paramType, String param) { + + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArray(param)) { // An array + println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".length; i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("paramObj[pos++] = " + getSimpleIdentifier(param) + "[i]."); + print(getSimpleIdentifier(members.get(i))); + println(";"); + } + println("}"); + } else if (isList(paramType)) { // A list + println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("paramObj[pos++] = " + getSimpleIdentifier(param) + ".get(i)."); + print(getSimpleIdentifier(members.get(i))); + println(";"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("paramObj[pos++] = " + getSimpleIdentifier(param) + "."); + print(getSimpleIdentifier(members.get(i))); + println(";"); + } } - println("\n"); } /** - * HELPER: writeConstructorJavaCallbackStub() writes the constructor of the callback stub class + * HELPER: writeStructParamClassJavaStub() writes parameters if struct is present */ - private void writeConstructorJavaCallbackStub(String intface, boolean callbackExist, Set callbackClasses) { - - println("public " + intface + "(IoTRMICall _rmiCall, int _objectId) throws Exception {"); - println("objectId = _objectId;"); - println("rmiCall = _rmiCall;"); - if (callbackExist) { - Iterator it = callbackClasses.iterator(); - String callbackType = (String) it.next(); - println("listCallbackObj = new ArrayList<" + callbackType + ">();"); - println("___initCallBack();"); + private void writeStructParamClassJavaStub(List methParams, List methPrmTypes, Set callbackType) { + + print("int paramLen = "); + writeLengthStructParamClassJavaStub(methParams, methPrmTypes); + println(";"); + println("Object[] paramObj = new Object[paramLen];"); + println("Class[] paramCls = new Class[paramLen];"); + println("int pos = 0;"); + // Iterate again over the parameters + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + writeStructMembersJavaStub(simpleType, paramType, param); + } else if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + println("paramCls[pos] = int[].class;"); + println("paramObj[pos++] = objIdSent" + i + ";"); + } else { + String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("paramObj[pos++] = "); + print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i)); + println(";"); + } } - println("}\n"); + } /** - * generateJavaCallbackStubClasses() generate callback stubs based on the methods list in Java - *

- * Callback stubs gets the IoTRMICall objects from outside of the class as contructor input - * because all these stubs are populated by the class that takes in this object as a callback - * object. In such a class, we only use one socket, hence one IoTRMICall, for all callback objects. + * HELPER: writeStructRetMembersJavaStub() writes parameters of struct for return statement */ - public void generateJavaCallbackStubClasses() throws IOException { - - // Create a new directory - String path = createDirectories(dir, subdir); + private void writeStructRetMembersJavaStub(String simpleType, String retType) { + + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArrayOrList(retType, retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + } + if (isArray(retType)) { // An array + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + print("structRet[i]." + getSimpleIdentifier(members.get(i))); + println(" = (" + getSimpleType(getEnumType(prmType)) + ") retActualObj[retObjPos++];"); + } + println("}"); + } else if (isList(retType)) { // A list + println(simpleType + " structRetMem = new " + simpleType + "();"); + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + print("structRetMem." + getSimpleIdentifier(members.get(i))); + println(" = (" + getSimpleType(getEnumType(prmType)) + ") retActualObj[retObjPos++];"); + } + println("structRet.add(structRetMem);"); + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + print("structRet." + getSimpleIdentifier(members.get(i))); + println(" = (" + getSimpleType(getEnumType(prmType)) + ") retActualObj[retObjPos++];"); + } + } + println("return structRet;"); + } + + + /** + * HELPER: writeStructReturnJavaStub() writes parameters if struct is present for return statement + */ + private void writeStructReturnJavaStub(String simpleType, String retType, String method, InterfaceDecl intDecl) { + + // Handle the returned struct size + writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, null);"); + // Minimum retLen is 1 if this is a single struct object + println("int retLen = (int) retObj;"); + int numMem = getNumOfMembers(simpleType); + println("Class[] retCls = new Class[" + numMem + "*retLen];"); + println("Class[] retClsVal = new Class[" + numMem + "*retLen];"); + println("int retPos = 0;"); + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArrayOrList(retType, retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + println("retClsVal[retPos++] = null;"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + println("retClsVal[retPos++] = null;"); + } + } + //println("Object[] retActualObj = rmiComm.getStructObjects(retCls, retClsVal);"); + // Handle the actual returned struct + writeWaitForReturnValueJava(method, intDecl, "Object[] retActualObj = rmiComm.getStructObjects(retCls, retClsVal);"); + if (isArray(retType)) { // An array + println(simpleType + "[] structRet = new " + simpleType + "[retLen];"); + println("for(int i = 0; i < retLen; i++) {"); + println("structRet[i] = new " + simpleType + "();"); + println("}"); + } else if (isList(retType)) { // A list + println("List<" + simpleType + "> structRet = new ArrayList<" + simpleType + ">();"); + } else + println(simpleType + " structRet = new " + simpleType + "();"); + println("int retObjPos = 0;"); + writeStructRetMembersJavaStub(simpleType, retType); + } + + + /** + * HELPER: writeWaitForReturnValueJava() writes the synchronization part for return values + */ + private void writeWaitForReturnValueJava(String method, InterfaceDecl intDecl, String getReturnValue) { + + println("// Waiting for return value"); + int methodNumId = intDecl.getMethodNumId(method); + println("while (!retValueReceived" + methodNumId + ".get());"); + println(getReturnValue); + println("retValueReceived" + methodNumId + ".set(false);"); + println("rmiComm.setGetReturnBytes();\n"); + } + + + /** + * HELPER: writeStdMethodBodyJavaStub() writes the standard method body in the stub class + */ + private void writeStdMethodBodyJavaStub(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, Set callbackType) { + + checkAndWriteStructSetupJavaStub(methParams, methPrmTypes, intDecl, method); + println("int methodId = " + intDecl.getMethodNumId(method) + ";"); + String retType = intDecl.getMethodType(method); + println("Class retType = " + getSimpleType(getStructType(getEnumType(retType))) + ".class;"); + checkAndWriteEnumTypeJavaStub(methParams, methPrmTypes); + // Generate array of parameter types + if (isStructPresent(methParams, methPrmTypes)) { + writeStructParamClassJavaStub(methParams, methPrmTypes, callbackType); + } else { + print("Class[] paramCls = new Class[] { "); + for (int i = 0; i < methParams.size(); i++) { + String prmType = methPrmTypes.get(i); + if (checkCallbackType(prmType, callbackType)) { // Check if this has callback object + print("int[].class"); + } else { // Generate normal classes if it's not a callback object + String paramType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); + print(getSimpleType(getEnumType(paramType)) + ".class"); + } + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(" };"); + // Generate array of parameter objects + print("Object[] paramObj = new Object[] { "); + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + print("objIdSent" + i); + } else + print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i)); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(" };"); + } + // Send method call first and wait for return value separately + println("rmiComm.remoteCall(objectId, methodId, paramCls, paramObj);"); + // Check if this is "void" + if (!retType.equals("void")) { // We do have a return value + // Generate array of parameter types + if (isStructClass(getGenericType(getSimpleArrayType(retType)))) { + writeStructReturnJavaStub(getGenericType(getSimpleArrayType(retType)), retType, method, intDecl); + } else { + // This is an enum type + if (getParamCategory(getGenericType(getSimpleArrayType(retType))) == ParamCategory.ENUM) { + //println("Object retObj = rmiCall.remoteCall(objectId, methodId, retType, null, paramCls, paramObj);"); + checkAndWriteEnumRetTypeJavaStub(retType, method, intDecl); + } else if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) { + // Check if the return value NONPRIMITIVES + String retGenValType = getGenericType(retType); + println("Class retGenValType = " + retGenValType + ".class;"); + writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, retGenValType);"); + println("return (" + retType + ")retObj;"); + } else { + writeWaitForReturnValueJava(method, intDecl, "Object retObj = rmiComm.getReturnValue(retType, null);"); + println("return (" + retType + ")retObj;"); + } + } + } + } + + + /** + * HELPER: returnGenericCallbackType() returns the callback type + */ + private String returnGenericCallbackType(String paramType) { + + if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) + return getGenericType(paramType); + else + return paramType; + } + + + /** + * HELPER: checkCallbackType() checks the callback type + */ + private boolean checkCallbackType(String paramType, Set callbackType) { + + String prmType = returnGenericCallbackType(paramType); + if (callbackType == null) // If there is no callbackType it means not a callback method + return false; + else { + for (String type : callbackType) { + if (type.equals(prmType)) + return true; // Check callbackType one by one + } + return false; + } + } + + + /** + * HELPER: checkCallbackType() checks the callback type + */ + private boolean checkCallbackType(String paramType, String callbackType) { + + String prmType = returnGenericCallbackType(paramType); + if (callbackType == null) // If there is no callbackType it means not a callback method + return false; + else + return callbackType.equals(prmType); + } + + + /** + * HELPER: writeCallbackInstantiationMethodBodyJavaStub() writes the callback object instantiation in the method of the stub class + */ + private void writeCallbackInstantiationMethodBodyJavaStub(String paramIdent, String callbackType, int counter, boolean isMultipleCallbacks) { + + println("if (!IoTRMIUtil.mapSkel.containsKey(" + paramIdent + ")) {"); + println("int newObjIdSent = rmiComm.getObjectIdCounter();"); + if (isMultipleCallbacks) + println("objIdSent" + counter + "[cnt" + counter + "++] = newObjIdSent;"); + else + println("objIdSent" + counter + "[0] = newObjIdSent;"); + println("rmiComm.decrementObjectIdCounter();"); + println(callbackType + "_Skeleton skel" + counter + " = new " + callbackType + "_Skeleton(" + paramIdent + ", rmiComm, newObjIdSent);"); + println("IoTRMIUtil.mapSkel.put(" + paramIdent + ", skel" + counter + ");"); + println("IoTRMIUtil.mapSkelId.put(" + paramIdent + ", newObjIdSent);"); + println("Thread thread = new Thread() {"); + println("public void run() {"); + println("try {"); + println("skel" + counter + ".___waitRequestInvokeMethod();"); + println("} catch (Exception ex) {"); + println("ex.printStackTrace();"); + println("throw new Error(\"Exception when trying to run ___waitRequestInvokeMethod() for " + + callbackType + "_Skeleton!\");"); + println("}"); + println("}"); + println("};"); + println("thread.start();"); + println("while(!skel" + counter + ".didAlreadyInitWaitInvoke());"); + println("}"); + println("else"); + println("{"); + println("int newObjIdSent = IoTRMIUtil.mapSkelId.get(" + paramIdent + ");"); + if (isMultipleCallbacks) + println("objIdSent" + counter + "[cnt" + counter + "++] = newObjIdSent;"); + else + println("objIdSent" + counter + "[0] = newObjIdSent;"); + println("}"); + } + + + /** + * HELPER: writeCallbackMethodBodyJavaStub() writes the callback method of the stub class + */ + private void writeCallbackMethodBodyJavaStub(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, Set callbackType) { + + // Determine callback object counter type (List vs. single variable) + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + print("int[] objIdSent" + i + " = "); + String param = methParams.get(i); + if (isArray(methParams.get(i))) + println("new int[" + getSimpleIdentifier(methParams.get(i)) + ".length];"); + else if (isList(methPrmTypes.get(i))) + println("new int[" + getSimpleIdentifier(methParams.get(i)) + ".size()];"); + else + println("new int[1];"); + } + } + println("try {"); + // Check if this is single object, array, or list of objects + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + String param = methParams.get(i); + if (isArrayOrList(paramType, param)) { // Generate loop + println("int cnt" + i + " = 0;"); + println("for (" + getGenericType(paramType) + " cb : " + getSimpleIdentifier(param) + ") {"); + writeCallbackInstantiationMethodBodyJavaStub("cb", returnGenericCallbackType(paramType), i, true); + } else + writeCallbackInstantiationMethodBodyJavaStub(getSimpleIdentifier(param), returnGenericCallbackType(paramType), i, false); + if (isArrayOrList(paramType, param)) + println("}"); + } + } + print("}"); + println(" catch (Exception ex) {"); + println("ex.printStackTrace();"); + println("throw new Error(\"Exception when generating skeleton objects!\");"); + println("}\n"); + } + + + /** + * HELPER: writeMethodJavaStub() writes the methods of the stub class + */ + private void writeMethodJavaStub(Collection methods, InterfaceDecl intDecl, Set callbackClasses, String newStubClass) { + + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + print("public " + intDecl.getMethodType(method) + " " + + intDecl.getMethodId(method) + "("); + boolean isCallbackMethod = false; + //String callbackType = null; + Set callbackType = new HashSet(); + for (int i = 0; i < methParams.size(); i++) { + + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + // Check if this has callback object + if (callbackClasses.contains(paramType)) { + isCallbackMethod = true; + //callbackType = paramType; + callbackType.add(paramType); + // Even if there're 2 callback arguments, we expect them to be of the same interface + } + print(methPrmTypes.get(i) + " " + methParams.get(i)); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(") {"); + // Now, write the body of stub! + if (isCallbackMethod) + writeCallbackMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method, callbackType); + //else + writeStdMethodBodyJavaStub(intDecl, methParams, methPrmTypes, method, callbackType); + println("}\n"); + } + } + + + /** + * HELPER: getStubInterface() gets stub interface name based on original interface + */ + public String getStubInterface(String intface) { + + return mapInt2NewIntName.get(intface); + } + + + /** + * generateJavaStubClasses() generate stubs based on the methods list in Java + */ + public void generateJavaStubClasses() throws IOException { + + // Create a new directory + String path = createDirectories(dir, subdir); for (String intface : mapIntfacePTH.keySet()) { Map> mapNewIntMethods = mapInt2NewInts.get(intface); @@ -725,7 +1118,7 @@ public class IoTCompiler { // Open a new file to write into String newIntface = intMeth.getKey(); - String newStubClass = newIntface + "_CallbackStub"; + String newStubClass = newIntface + "_Stub"; FileWriter fw = new FileWriter(path + "/" + newStubClass + ".java"); pw = new PrintWriter(new BufferedWriter(fw)); DeclarationHandler decHandler = mapIntDeclHand.get(intface); @@ -734,7 +1127,7 @@ public class IoTCompiler { Set methods = intMeth.getValue(); Set importClasses = getImportClasses(methods, intDecl); List stdImportClasses = getStandardJavaImportClasses(); - List allImportClasses = getAllImportClasses(stdImportClasses, importClasses); + List allImportClasses = getAllLibClasses(stdImportClasses, importClasses); printImportStatements(allImportClasses); println(""); // Find out if there are callback objects Set callbackClasses = getCallbackClasses(methods, intDecl); @@ -742,15 +1135,16 @@ public class IoTCompiler { // Write class header println("public class " + newStubClass + " implements " + newIntface + " {\n"); // Write properties - writePropertiesJavaCallbackStub(intface, newIntface, callbackExist, callbackClasses); + writePropertiesJavaStub(intface, intMeth.getValue(), intDecl); // Write constructor - writeConstructorJavaCallbackStub(newStubClass, callbackExist, callbackClasses); + writeConstructorJavaStub(intface, newStubClass, intMeth.getValue(), intDecl); + // Write callback constructor (used if this stub is treated as a callback stub) + writeCallbackConstructorJavaStub(intface, newStubClass, intMeth.getValue(), intDecl); // Write methods - // TODO: perhaps need to generate callback for callback - writeMethodJavaStub(intMeth.getValue(), intDecl, callbackClasses); + writeMethodJavaStub(intMeth.getValue(), intDecl, callbackClasses, newStubClass); println("}"); pw.close(); - System.out.println("IoTCompiler: Generated callback stub class " + newStubClass + ".java..."); + System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".java..."); } } } @@ -759,38 +1153,103 @@ public class IoTCompiler { /** * HELPER: writePropertiesJavaSkeleton() writes the properties of the skeleton class */ - private void writePropertiesJavaSkeleton(String intface, boolean callbackExist) { + private void writePropertiesJavaSkeleton(String intface, InterfaceDecl intDecl) { println("private " + intface + " mainObj;"); - //println("private int ports;"); - println("private IoTRMIObject rmiObj;\n"); - // Callback - if (callbackExist) { - println("private static int objIdCnt = 0;"); - println("private IoTRMICall rmiCall;"); - } - // Keep track of object Ids of all stubs registered to this interface - Map> mapNewIntMethods = mapInt2NewInts.get(intface); - for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { - String newIntface = intMeth.getKey(); - int newObjectId = mapNewIntfaceObjId.get(newIntface); - println("private final static int object" + newObjectId + "Id = " + - newObjectId + ";\t//" + newIntface); - } + //println("private int objectId = 0;"); + Integer objId = mapIntfaceObjId.get(intface); + println("private int objectId = " + objId + ";"); + println("// Communications and synchronizations"); + println("private IoTRMIComm rmiComm;"); + println("private AtomicBoolean didAlreadyInitWaitInvoke;"); + println("private AtomicBoolean methodReceived;"); + println("private byte[] methodBytes = null;"); + println("// Permissions"); + writePropertiesJavaPermission(intface, intDecl); println("\n"); } + /** + * HELPER: writeStructPermissionJavaSkeleton() writes permission for struct helper + */ + private void writeStructPermissionJavaSkeleton(Collection methods, InterfaceDecl intDecl, String intface) { + + // Use this set to handle two same methodIds + for (String method : methods) { + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + String helperMethod = methodNumId + "struct" + i; + int methodHelperNumId = intDecl.getHelperMethodNumId(helperMethod); + // Iterate over interfaces to give permissions to + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + println("set" + newObjectId + "Allowed.add(" + methodHelperNumId + ");"); + } + } + } + } + } + + /** * HELPER: writeConstructorJavaSkeleton() writes the constructor of the skeleton class */ - private void writeConstructorJavaSkeleton(String newSkelClass, String intface) { + private void writeConstructorJavaSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl, + Collection methods, boolean callbackExist) { - println("public " + newSkelClass + "(" + intface + " _mainObj, int _port) throws Exception {"); + println("public " + newSkelClass + "(" + intface + " _mainObj, int _portSend, int _portRecv) throws Exception {"); println("mainObj = _mainObj;"); - println("rmiObj = new IoTRMIObject(_port);"); - //println("set0Allowed = Arrays.asList(object0Permission);"); + println("rmiComm = new IoTRMICommServer(_portSend, _portRecv);"); + // Generate permission control initialization + writeConstructorJavaPermission(intface); + writeStructPermissionJavaSkeleton(methods, intDecl, intface); + println("IoTRMIUtil.mapSkel.put(_mainObj, this);"); + println("IoTRMIUtil.mapSkelId.put(_mainObj, objectId);"); + println("didAlreadyInitWaitInvoke = new AtomicBoolean(false);"); + println("methodReceived = new AtomicBoolean(false);"); + println("rmiComm.registerSkeleton(objectId, methodReceived);"); + println("Thread thread1 = new Thread() {"); + println("public void run() {"); + println("try {"); println("___waitRequestInvokeMethod();"); + println("}"); + println("catch (Exception ex)"); + println("{"); + println("ex.printStackTrace();"); + println("}"); + println("}"); + println("};"); + println("thread1.start();"); + println("}\n"); + } + + + /** + * HELPER: writeCallbackConstructorJavaSkeleton() writes the constructor of the skeleton class + */ + private void writeCallbackConstructorJavaSkeleton(String newSkelClass, String intface, InterfaceDecl intDecl, + Collection methods, boolean callbackExist) { + + println("public " + newSkelClass + "(" + intface + " _mainObj, IoTRMIComm _rmiComm, int _objectId) throws Exception {"); + println("mainObj = _mainObj;"); + println("rmiComm = _rmiComm;"); + println("objectId = _objectId;"); + // Generate permission control initialization + writeConstructorJavaPermission(intface); + writeStructPermissionJavaSkeleton(methods, intDecl, intface); + println("didAlreadyInitWaitInvoke = new AtomicBoolean(false);"); + println("methodReceived = new AtomicBoolean(false);"); + println("rmiComm.registerSkeleton(objectId, methodReceived);"); println("}\n"); } @@ -816,23 +1275,10 @@ public class IoTCompiler { } - /** - * HELPER: writeInitCallbackJavaSkeleton() writes the init callback method for skeleton class - */ - private void writeInitCallbackJavaSkeleton() { - - println("public void ___regCB() throws IOException {"); - println("Object[] paramObj = rmiObj.getMethodParams(new Class[] { int.class, String.class, int.class },"); - println("\tnew Class[] { null, null, null });"); - println("rmiCall = new IoTRMICall((int) paramObj[0], (String) paramObj[1], (int) paramObj[2]);"); - println("}\n"); - } - - /** * HELPER: writeMethodJavaSkeleton() writes the method of the skeleton class */ - private void writeMethodJavaSkeleton(Collection methods, InterfaceDecl intDecl, Set callbackClasses) { + private void writeMethodJavaSkeleton(Collection methods, InterfaceDecl intDecl) { for (String method : methods) { @@ -840,18 +1286,10 @@ public class IoTCompiler { List methPrmTypes = intDecl.getMethodParamTypes(method); String methodId = intDecl.getMethodId(method); print("public " + intDecl.getMethodType(method) + " " + methodId + "("); - boolean isCallbackMethod = false; - String callbackType = null; for (int i = 0; i < methParams.size(); i++) { String origParamType = methPrmTypes.get(i); - String paramType = checkAndGetParamClass(origParamType, false); - if (callbackClasses != null) { // Check if this has callback object - if (callbackClasses.contains(origParamType)) { - isCallbackMethod = true; - callbackType = origParamType; - } - } + String paramType = checkAndGetParamClass(origParamType); print(paramType + " " + methParams.get(i)); // Check if this is the last element (don't print a comma) if (i != methParams.size() - 1) { @@ -862,127 +1300,410 @@ public class IoTCompiler { // Now, write the body of skeleton! writeStdMethodBodyJavaSkeleton(methParams, methodId, intDecl.getMethodType(method)); println("}\n"); - if (isCallbackMethod) - writeInitCallbackJavaSkeleton(); } } /** - * HELPER: writeCallbackStubGeneration() writes the callback stub generation part + * HELPER: writeCallbackInstantiationJavaStubGeneration() writes the instantiation of callback stubs + */ + private void writeCallbackInstantiationJavaStubGeneration(String exchParamType, int counter) { + + println(exchParamType + " newStub" + counter + " = null;"); + println("if(!IoTRMIUtil.mapStub.containsKey(objIdRecv" + counter + ")) {"); + println("newStub" + counter + " = new " + exchParamType + "_Stub(rmiComm, objIdRecv" + counter + ");"); + println("IoTRMIUtil.mapStub.put(objIdRecv" + counter + ", newStub" + counter + ");"); + println("rmiComm.setObjectIdCounter(objIdRecv" + counter + ");"); + println("rmiComm.decrementObjectIdCounter();"); + println("}"); + println("else {"); + println("newStub" + counter + " = (" + exchParamType + "_Stub) IoTRMIUtil.mapStub.get(objIdRecv" + counter + ");"); + println("}"); + } + + + /** + * HELPER: writeCallbackJavaStubGeneration() writes the callback stub generation part */ - private Map writeCallbackStubGeneration(List methParams, List methPrmTypes, String callbackType) { + private Map writeCallbackJavaStubGeneration(List methParams, List methPrmTypes, + Set callbackType, boolean isStructMethod) { Map mapStubParam = new HashMap(); + String offsetPfx = ""; + if (isStructMethod) + offsetPfx = "offset"; // Iterate over callback objects for (int i = 0; i < methParams.size(); i++) { String paramType = methPrmTypes.get(i); String param = methParams.get(i); - //if (callbackType.equals(paramType)) { if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object - println("try {"); - String exchParamType = checkAndGetParamClass(paramType, false); + String exchParamType = checkAndGetParamClass(getGenericType(paramType)); // Print array if this is array or list if this is a list of callback objects - if (isArray(paramType, param)) { - println("int numStubs" + i + " = (int) paramObj[" + i + "];"); + println("int[] stubIdArray" + i + " = (int[]) paramObj[" + offsetPfx + i + "];"); + if (isArray(param)) { + println("int numStubs" + i + " = stubIdArray" + i + ".length;"); println(exchParamType + "[] stub" + i + " = new " + exchParamType + "[numStubs" + i + "];"); - } else if (isList(paramType, param)) { - println("int numStubs" + i + " = (int) paramObj[" + i + "];"); + } else if (isList(paramType)) { + println("int numStubs" + i + " = stubIdArray" + i + ".length;"); println("List<" + exchParamType + "> stub" + i + " = new ArrayList<" + exchParamType + ">();"); } else { - println(exchParamType + " stub" + i + " = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);"); - println("objIdCnt++;"); + println("int objIdRecv" + i + " = stubIdArray" + i + "[0];"); + writeCallbackInstantiationJavaStubGeneration(exchParamType, i); } } // Generate a loop if needed if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object - String exchParamType = checkAndGetParamClass(paramType, false); - if (isArray(paramType, param)) { - println("for (int objId = 0; objId < numStubs" + i + "; objId++) {"); - println("stub" + i + "[objId] = new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt);"); - println("objIdCnt++;"); + String exchParamType = checkAndGetParamClass(getGenericType(paramType)); + if (isArray(param)) { + println("for (int i = 0; i < numStubs" + i + "; i++) {"); + println("int objIdRecv" + i + " = stubIdArray" + i + "[i];"); + writeCallbackInstantiationJavaStubGeneration(exchParamType, i); + println("stub" + i + "[i] = newStub" + i + ";"); println("}"); - } else if (isList(paramType, param)) { - println("for (int objId = 0; objId < numStubs" + i + "; objId++) {"); - println("stub" + i + ".add(new " + exchParamType + "_CallbackStub(rmiCall, objIdCnt));"); - println("objIdCnt++;"); + } else if (isList(paramType)) { + println("for (int i = 0; i < numStubs" + i + "; i++) {"); + println("int objIdRecv" + i + " = stubIdArray" + i + "[i];"); + writeCallbackInstantiationJavaStubGeneration(exchParamType, i); + println("stub" + i + ".add(newStub" + i + ");"); println("}"); - } + } else + println(exchParamType + " stub" + i + " = newStub" + i + ";"); + mapStubParam.put(i, "stub" + i); // List of all stub parameters } - mapStubParam.put(i, "stub" + i); // List of all stub parameters } return mapStubParam; } /** - * HELPER: writeStdMethodHelperBodyJavaSkeleton() writes the standard method body helper in the skeleton class + * HELPER: checkAndWriteEnumTypeJavaSkeleton() writes the enum type (convert from enum to int) */ - private void writeStdMethodHelperBodyJavaSkeleton(InterfaceDecl intDecl, List methParams, - List methPrmTypes, String method, Set callbackClasses) { - // Generate array of parameter objects - boolean isCallbackMethod = false; - String callbackType = null; - print("Object[] paramObj = rmiObj.getMethodParams(new Class[] { "); + private void checkAndWriteEnumTypeJavaSkeleton(List methParams, List methPrmTypes, boolean isStructMethod) { + + String offsetPfx = ""; + if (isStructMethod) + offsetPfx = "offset"; + // Iterate and find enum declarations + boolean printed = false; for (int i = 0; i < methParams.size(); i++) { String paramType = methPrmTypes.get(i); - if (getParamCategory(paramType) == ParamCategory.NONPRIMITIVES) - paramType = getTypeOfGeneric(paramType)[0]; - if (callbackClasses != null) { - if (callbackClasses.contains(paramType)) { - isCallbackMethod = true; - callbackType = paramType; - print("int.class"); - } else { - String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); - print(getSimpleType(prmType) + ".class"); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isEnumClass(simpleType)) { + // Check if this is enum type + println("int paramInt" + i + "[] = (int[]) paramObj[" + offsetPfx + i + "];"); + if (!printed) { + println(simpleType + "[] enumVals = " + simpleType + ".values();"); + printed = true; + } + if (isArray(param)) { // An array + println("int len" + i + " = paramInt" + i + ".length;"); + println(simpleType + "[] paramEnum" + i + " = new " + simpleType + "[len" + i + "];"); + println("for (int i = 0; i < len" + i + "; i++) {"); + println("paramEnum" + i + "[i] = enumVals[paramInt" + i + "[i]];"); + println("}"); + } else if (isList(paramType)) { // A list + println("int len" + i + " = paramInt" + i + ".length;"); + println("List<" + simpleType + "> paramEnum" + i + " = new ArrayList<" + simpleType + ">();"); + println("for (int i = 0; i < len" + i + "; i++) {"); + println("paramEnum" + i + ".add(enumVals[paramInt" + i + "[i]]);"); + println("}"); + } else { // Just one element + println(simpleType + " paramEnum" + i + " = enumVals[paramInt" + i + "[0]];"); } - } else { // Generate normal classes if it's not a callback object - String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); - print(getSimpleType(prmType) + ".class"); } - if (i != methParams.size() - 1) - print(", "); } - println(" }, "); - // Generate generic class if it's a generic type.. null otherwise - print("new Class[] { "); + } + + + /** + * HELPER: checkAndWriteEnumRetTypeJavaSkeleton() writes the enum return type (convert from enum to int) + */ + private void checkAndWriteEnumRetTypeJavaSkeleton(String retType, String methodId) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(getGenericType(retType)); + // Take the inner type of generic + if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(retType); + if (isEnumClass(pureType)) { + // Check if this is enum type + // Enum decoder + if (isArray(retType)) { // An array + print(pureType + "[] retEnum = " + methodId + "("); + } else if (isList(retType)) { // A list + print("List<" + pureType + "> retEnum = " + methodId + "("); + } else { // Just one element + print(pureType + " retEnum = " + methodId + "("); + } + } + } + + + /** + * HELPER: checkAndWriteEnumRetConvJavaSkeleton() writes the enum return type (convert from enum to int) + */ + private void checkAndWriteEnumRetConvJavaSkeleton(String retType) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(getGenericType(retType)); + // Take the inner type of generic + if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(retType); + if (isEnumClass(pureType)) { + // Check if this is enum type + if (isArray(retType)) { // An array + println("int retLen = retEnum.length;"); + println("int[] retEnumVal = new int[retLen];"); + println("for (int i = 0; i < retLen; i++) {"); + println("retEnumVal[i] = retEnum[i].ordinal();"); + println("}"); + } else if (isList(retType)) { // A list + println("int retLen = retEnum.size();"); + println("int[] retEnumVal = new int[retLen];"); + println("for (int i = 0; i < retLen; i++) {"); + println("retEnumVal[i] = retEnum.get(i).ordinal();"); + println("}"); + } else { // Just one element + println("int[] retEnumVal = new int[1];"); + println("retEnumVal[0] = retEnum.ordinal();"); + } + println("Object retObj = retEnumVal;"); + } + } + + + /** + * HELPER: writeLengthStructParamClassSkeleton() writes lengths of params + */ + private void writeLengthStructParamClassSkeleton(List methParams, List methPrmTypes, + String method, InterfaceDecl intDecl) { + + // Iterate and find struct declarations - count number of params for (int i = 0; i < methParams.size(); i++) { - String prmType = methPrmTypes.get(i); - if (getParamCategory(prmType) == ParamCategory.NONPRIMITIVES) - print(getTypeOfGeneric(prmType)[0] + ".class"); - else - print("null"); - if (i != methParams.size() - 1) - print(", "); + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int members = getNumOfMembers(simpleType); + print(Integer.toString(members) + "*"); + int methodNumId = intDecl.getMethodNumId(method); + print("struct" + methodNumId + "Size" + i); + } else + print("1"); + if (i != methParams.size() - 1) { + print("+"); + } + } + } + + + /** + * HELPER: writeStructMembersJavaSkeleton() writes member parameters of struct + */ + private void writeStructMembersJavaSkeleton(String simpleType, String paramType, + String param, String method, InterfaceDecl intDecl, int iVar) { + + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArrayOrList(paramType, param)) { // An array or list + int methodNumId = intDecl.getMethodNumId(method); + String counter = "struct" + methodNumId + "Size" + iVar; + println("for(int i = 0; i < " + counter + "; i++) {"); + } + if (isArrayOrList(paramType, param)) { // An array or list + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + println("paramClsGen[pos++] = null;"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + println("paramClsGen[pos++] = null;"); + } + } + } + + + /** + * HELPER: writeStructMembersInitJavaSkeleton() writes member parameters initialization of struct + */ + private void writeStructMembersInitJavaSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method) { + + println("int objPos = 0;"); + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + String counter = "struct" + methodNumId + "Size" + i; + // Declaration + if (isArray(param)) { // An array + println(simpleType + "[] paramStruct" + i + " = new " + simpleType + "[" + counter + "];"); + println("for(int i = 0; i < " + counter + "; i++) {"); + println("paramStruct" + i + "[i] = new " + simpleType + "();"); + println("}"); + } else if (isList(paramType)) { // A list + println("List<" + simpleType + "> paramStruct" + i + " = new ArrayList<" + simpleType + ">();"); + } else + println(simpleType + " paramStruct" + i + " = new " + simpleType + "();"); + // Initialize members + StructDecl structDecl = getStructDecl(simpleType); + List members = structDecl.getMembers(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + if (isArrayOrList(paramType, param)) { // An array or list + println("for(int i = 0; i < " + counter + "; i++) {"); + } + if (isArray(param)) { // An array + for (int j = 0; j < members.size(); j++) { + String prmType = checkAndGetArray(memTypes.get(j), members.get(j)); + print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j))); + println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];"); + } + println("}"); + } else if (isList(paramType)) { // A list + println(simpleType + " paramStructMem = new " + simpleType + "();"); + for (int j = 0; j < members.size(); j++) { + String prmType = checkAndGetArray(memTypes.get(j), members.get(j)); + print("paramStructMem." + getSimpleIdentifier(members.get(j))); + println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];"); + } + println("paramStruct" + i + ".add(paramStructMem);"); + println("}"); + } else { // Just one struct element + for (int j = 0; j < members.size(); j++) { + String prmType = checkAndGetArray(memTypes.get(j), members.get(j)); + print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j))); + println(" = (" + getSimpleType(getEnumType(prmType)) + ") paramObj[objPos++];"); + } + } + } else { + // Take offsets of parameters + println("int offset" + i +" = objPos++;"); + } + } + } + + + /** + * HELPER: writeStructReturnJavaSkeleton() writes struct for return statement + */ + private void writeStructReturnJavaSkeleton(String simpleType, String retType) { + + // Minimum retLen is 1 if this is a single struct object + if (isArray(retType)) + println("int retLen = retStruct.length;"); + else if (isList(retType)) + println("int retLen = retStruct.size();"); + else // Just single struct object + println("int retLen = 1;"); + println("Object retLenObj = retLen;"); + println("rmiComm.sendReturnObj(retLenObj, localMethodBytes);"); + int numMem = getNumOfMembers(simpleType); + println("Class[] retCls = new Class[" + numMem + "*retLen];"); + println("Object[] retObj = new Object[" + numMem + "*retLen];"); + println("int retPos = 0;"); + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArray(retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("retObj[retPos++] = retStruct[i]."); + print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i)); + println(";"); + } + println("}"); + } else if (isList(retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("retObj[retPos++] = retStruct.get(i)."); + print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i)); + println(";"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + println("retCls[retPos] = " + getSimpleType(getEnumType(prmType)) + ".class;"); + print("retObj[retPos++] = retStruct."); + print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i)); + println(";"); + } } - println(" });"); + + } + + + /** + * HELPER: writeMethodHelperReturnJavaSkeleton() writes return statement part in skeleton + */ + private void writeMethodHelperReturnJavaSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, boolean isCallbackMethod, Set callbackType, + boolean isStructMethod) { + + checkAndWriteEnumTypeJavaSkeleton(methParams, methPrmTypes, isStructMethod); Map mapStubParam = null; - if (isCallbackMethod) - mapStubParam = writeCallbackStubGeneration(methParams, methPrmTypes, callbackType); + if (isCallbackMethod) { + println("try {"); + mapStubParam = writeCallbackJavaStubGeneration(methParams, methPrmTypes, callbackType, isStructMethod); + } // Check if this is "void" String retType = intDecl.getMethodType(method); if (retType.equals("void")) { print(intDecl.getMethodId(method) + "("); + } else if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { // Enum type + checkAndWriteEnumRetTypeJavaSkeleton(retType, intDecl.getMethodId(method)); + } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) { // Struct type + print(retType + " retStruct = " + intDecl.getMethodId(method) + "("); } else { // We do have a return value print("Object retObj = " + intDecl.getMethodId(method) + "("); } for (int i = 0; i < methParams.size(); i++) { - if (isCallbackMethod) { + String paramType = methPrmTypes.get(i); + if (isCallbackMethod && checkCallbackType(paramType, callbackType)) { print(mapStubParam.get(i)); // Get the callback parameter + } else if (isEnumClass(getGenericType(paramType))) { // Enum class + print(getEnumParam(paramType, methParams.get(i), i)); + } else if (isStructClass(getGenericType(paramType))) { + print("paramStruct" + i); } else { - String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); - print("(" + prmType + ") paramObj[" + i + "]"); + String prmType = checkAndGetArray(paramType, methParams.get(i)); + if (isStructMethod) + print("(" + prmType + ") paramObj[offset" + i + "]"); + else + print("(" + prmType + ") paramObj[" + i + "]"); } if (i != methParams.size() - 1) print(", "); } println(");"); - if (!retType.equals("void")) - println("rmiObj.sendReturnObj(retObj);"); + if (!retType.equals("void")) { + if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { // Enum type + checkAndWriteEnumRetConvJavaSkeleton(retType); + println("rmiComm.sendReturnObj(retObj, localMethodBytes);"); + } else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) { // Struct type + writeStructReturnJavaSkeleton(getSimpleArrayType(getGenericType(retType)), retType); + println("rmiComm.sendReturnObj(retCls, retObj, localMethodBytes);"); + } else + println("rmiComm.sendReturnObj(retObj, localMethodBytes);"); + } if (isCallbackMethod) { // Catch exception if this is callback - println("} catch(Exception ex) {"); + print("}"); + println(" catch(Exception ex) {"); println("ex.printStackTrace();"); println("throw new Error(\"Exception from callback object instantiation!\");"); println("}"); @@ -990,6 +1711,106 @@ public class IoTCompiler { } + /** + * HELPER: writeMethodHelperStructJavaSkeleton() writes the struct in skeleton + */ + private void writeMethodHelperStructJavaSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, Set callbackClasses) { + + // Generate array of parameter objects + boolean isCallbackMethod = false; + //String callbackType = null; + Set callbackType = new HashSet(); + println("byte[] localMethodBytes = methodBytes;"); + println("rmiComm.setGetMethodBytes();"); + print("int paramLen = "); + writeLengthStructParamClassSkeleton(methParams, methPrmTypes, method, intDecl); + println(";"); + println("Class[] paramCls = new Class[paramLen];"); + println("Class[] paramClsGen = new Class[paramLen];"); + println("int pos = 0;"); + // Iterate again over the parameters + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + writeStructMembersJavaSkeleton(simpleType, paramType, param, method, intDecl, i); + } else { + String prmType = returnGenericCallbackType(methPrmTypes.get(i)); + if (callbackClasses.contains(prmType)) { + isCallbackMethod = true; + //callbackType = prmType; + callbackType.add(prmType); + println("paramCls[pos] = int[].class;"); + println("paramClsGen[pos++] = null;"); + } else { // Generate normal classes if it's not a callback object + String paramTypeOth = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); + println("paramCls[pos] = " + getSimpleType(getEnumType(paramTypeOth)) + ".class;"); + print("paramClsGen[pos++] = "); + String prmTypeOth = methPrmTypes.get(i); + if (getParamCategory(prmTypeOth) == ParamCategory.NONPRIMITIVES) + println(getTypeOfGeneric(prmType)[0] + ".class;"); + else + println("null;"); + } + } + } + println("Object[] paramObj = rmiComm.getMethodParams(paramCls, paramClsGen, localMethodBytes);"); + writeStructMembersInitJavaSkeleton(intDecl, methParams, methPrmTypes, method); + // Write the return value part + writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, true); + } + + + /** + * HELPER: writeStdMethodHelperBodyJavaSkeleton() writes the standard method body helper in the skeleton class + */ + private void writeStdMethodHelperBodyJavaSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, Set callbackClasses) { + + // Generate array of parameter objects + boolean isCallbackMethod = false; + //String callbackType = null; + Set callbackType = new HashSet(); + println("byte[] localMethodBytes = methodBytes;"); + println("rmiComm.setGetMethodBytes();"); + print("Object[] paramObj = rmiComm.getMethodParams(new Class[] { "); + for (int i = 0; i < methParams.size(); i++) { + + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (callbackClasses.contains(paramType)) { + isCallbackMethod = true; + //callbackType = paramType; + callbackType.add(paramType); + print("int[].class"); + } else { // Generate normal classes if it's not a callback object + String prmType = checkAndGetArray(methPrmTypes.get(i), methParams.get(i)); + print(getSimpleType(getEnumType(prmType)) + ".class"); + } + if (i != methParams.size() - 1) + print(", "); + } + //println(" }, "); + // Generate generic class if it's a generic type.. null otherwise + print(" }, new Class[] { "); + for (int i = 0; i < methParams.size(); i++) { + String prmType = methPrmTypes.get(i); + if ((getParamCategory(prmType) == ParamCategory.NONPRIMITIVES) && + !isEnumClass(getGenericType(prmType)) && + !callbackClasses.contains(getGenericType(prmType))) + print(getGenericType(prmType) + ".class"); + else + print("null"); + if (i != methParams.size() - 1) + print(", "); + } + println(" }, localMethodBytes);"); + // Write the return value part + writeMethodHelperReturnJavaSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, callbackType, false); + } + + /** * HELPER: writeMethodHelperJavaSkeleton() writes the method helper of the skeleton class */ @@ -1001,848 +1822,2341 @@ public class IoTCompiler { List methParams = intDecl.getMethodParams(method); List methPrmTypes = intDecl.getMethodParamTypes(method); - String methodId = intDecl.getMethodId(method); - print("public void ___"); - String helperMethod = methodId; - if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + intDecl.getMethodNumId(method); - else - uniqueMethodIds.add(methodId); - // Check if this is "void" - String retType = intDecl.getMethodType(method); - if (retType.equals("void")) - println(helperMethod + "() {"); - else - println(helperMethod + "() throws IOException {"); - // Now, write the helper body of skeleton! - writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses); - println("}\n"); + if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently + String methodId = intDecl.getMethodId(method); + print("public void ___"); + String helperMethod = methodId; + if (uniqueMethodIds.contains(methodId)) + helperMethod = helperMethod + intDecl.getMethodNumId(method); + else + uniqueMethodIds.add(methodId); + String retType = intDecl.getMethodType(method); + print(helperMethod + "("); + boolean begin = true; + for (int i = 0; i < methParams.size(); i++) { // Print size variables + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + if (!begin) // Generate comma for not the beginning variable + print(", "); + else + begin = false; + int methodNumId = intDecl.getMethodNumId(method); + print("int struct" + methodNumId + "Size" + i); + } + } + // Check if this is "void" + if (retType.equals("void")) + println(") {"); + else + println(") throws IOException {"); + writeMethodHelperStructJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses); + println("}\n"); + } else { + String methodId = intDecl.getMethodId(method); + print("public void ___"); + String helperMethod = methodId; + if (uniqueMethodIds.contains(methodId)) + helperMethod = helperMethod + intDecl.getMethodNumId(method); + else + uniqueMethodIds.add(methodId); + // Check if this is "void" + String retType = intDecl.getMethodType(method); + if (retType.equals("void")) + println(helperMethod + "() {"); + else + println(helperMethod + "() throws IOException {"); + // Now, write the helper body of skeleton! + writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses); + println("}\n"); + } } + // Write method helper for structs + writeMethodHelperStructSetupJavaSkeleton(methods, intDecl); } /** - * HELPER: writeJavaWaitRequestInvokeMethod() writes the main loop of the skeleton class + * HELPER: writeMethodHelperStructSetupJavaSkeleton() writes the method helper of struct setup in skeleton class */ - private void writeJavaWaitRequestInvokeMethod(Collection methods, InterfaceDecl intDecl, boolean callbackExist) { + private void writeMethodHelperStructSetupJavaSkeleton(Collection methods, + InterfaceDecl intDecl) { // Use this set to handle two same methodIds - Set uniqueMethodIds = new HashSet(); - println("private void ___waitRequestInvokeMethod() throws IOException {"); - // Write variables here if we have callbacks or enums or structs - println("while (true) {"); - println("rmiObj.getMethodBytes();"); - println("int _objectId = rmiObj.getObjectId();"); - println("int methodId = rmiObj.getMethodId();"); - // TODO: code the permission check here! - println("switch (methodId) {"); - // Print methods and method Ids for (String method : methods) { - String methodId = intDecl.getMethodId(method); - int methodNumId = intDecl.getMethodNumId(method); - print("case " + methodNumId + ": ___"); - String helperMethod = methodId; - if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + methodNumId; - else - uniqueMethodIds.add(methodId); - println(helperMethod + "(); break;"); - } - String method = "___initCallBack()"; - // Print case -9999 (callback handler) if callback exists - if (callbackExist) { - int methodId = intDecl.getHelperMethodNumId(method); - println("case " + methodId + ": ___regCB(); break;"); + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("public int ___"); + String helperMethod = methodNumId + "struct" + i; + println(helperMethod + "() {"); + // Now, write the helper body of skeleton! + println("byte[] localMethodBytes = methodBytes;"); + println("rmiComm.setGetMethodBytes();"); + println("Object[] paramObj = rmiComm.getMethodParams(new Class[] { int.class }, new Class[] { null }, localMethodBytes);"); + println("return (int) paramObj[0];"); + println("}\n"); + } + } } - println("default: "); - println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");"); - println("}"); - println("}"); - println("}\n"); } /** - * generateJavaSkeletonClass() generate skeletons based on the methods list in Java + * HELPER: writeMethodHelperStructSetupJavaCallbackSkeleton() writes the method helper of struct setup in callback skeleton class */ - public void generateJavaSkeletonClass() throws IOException { + private void writeMethodHelperStructSetupJavaCallbackSkeleton(Collection methods, + InterfaceDecl intDecl) { - // Create a new directory - String path = createDirectories(dir, subdir); - for (String intface : mapIntfacePTH.keySet()) { - // Open a new file to write into - String newSkelClass = intface + "_Skeleton"; - FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java"); - pw = new PrintWriter(new BufferedWriter(fw)); - // Pass in set of methods and get import classes - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - List methods = intDecl.getMethods(); - Set importClasses = getImportClasses(methods, intDecl); - List stdImportClasses = getStandardJavaImportClasses(); - List allImportClasses = getAllImportClasses(stdImportClasses, importClasses); - printImportStatements(allImportClasses); - // Find out if there are callback objects - Set callbackClasses = getCallbackClasses(methods, intDecl); - boolean callbackExist = !callbackClasses.isEmpty(); - // Write class header - println(""); - println("public class " + newSkelClass + " implements " + intface + " {\n"); - // Write properties - writePropertiesJavaSkeleton(intface, callbackExist); - // Write constructor - writeConstructorJavaSkeleton(newSkelClass, intface); - // Write methods - writeMethodJavaSkeleton(methods, intDecl, callbackClasses); - // Write method helper - writeMethodHelperJavaSkeleton(methods, intDecl, callbackClasses); - // Write waitRequestInvokeMethod() - main loop - writeJavaWaitRequestInvokeMethod(methods, intDecl, callbackExist); - println("}"); - pw.close(); - System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".java..."); + // Use this set to handle two same methodIds + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("public int ___"); + String helperMethod = methodNumId + "struct" + i; + println(helperMethod + "(IoTRMIObject rmiObj) {"); + // Now, write the helper body of skeleton! + println("Object[] paramObj = rmiComm.getMethodParams(new Class[] { int.class }, new Class[] { null });"); + println("return (int) paramObj[0];"); + println("}\n"); + } + } } } /** - * HELPER: writePropertiesJavaCallbackSkeleton() writes the properties of the callback skeleton class + * HELPER: writeCountVarStructSkeleton() writes counter variable of struct for skeleton */ - private void writePropertiesJavaCallbackSkeleton(String intface, boolean callbackExist) { + private void writeCountVarStructSkeleton(Collection methods, InterfaceDecl intDecl) { - println("private " + intface + " mainObj;"); - // For callback skeletons, this is its own object Id - println("private static int objectId = 0;"); - // Callback - if (callbackExist) { - println("private static int objIdCnt = 0;"); - println("private IoTRMICall rmiCall;"); + // Use this set to handle two same methodIds + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + println("int struct" + methodNumId + "Size" + i + " = 0;"); + } + } } - println("\n"); } - + /** - * HELPER: writeConstructorJavaCallbackSkeleton() writes the constructor of the skeleton class + * HELPER: writeInputCountVarStructJavaSkeleton() writes input counter variable of struct for skeleton */ - private void writeConstructorJavaCallbackSkeleton(String newSkelClass, String intface) { + private boolean writeInputCountVarStructJavaSkeleton(String method, InterfaceDecl intDecl) { - println("public " + newSkelClass + "(" + intface + " _mainObj, int _objectId) throws Exception {"); - println("mainObj = _mainObj;"); - println("objectId = _objectId;"); - println("}\n"); + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + boolean structExist = false; + boolean begin = true; + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + structExist = true; + if (!begin) + print(", "); + else + begin = false; + int methodNumId = intDecl.getMethodNumId(method); + print("struct" + methodNumId + "Size" + i + "Final"); + } + } + return structExist; } - + /** - * HELPER: writeMethodHelperJavaCallbackSkeleton() writes the method helper of the callback skeleton class + * HELPER: writeInputCountVarStructCplusSkeleton() writes input counter variable of struct for skeleton */ - private void writeMethodHelperJavaCallbackSkeleton(Collection methods, InterfaceDecl intDecl, Set callbackClasses) { - - // Use this set to handle two same methodIds - Set uniqueMethodIds = new HashSet(); - for (String method : methods) { + private boolean writeInputCountVarStructCplusSkeleton(String method, InterfaceDecl intDecl) { - List methParams = intDecl.getMethodParams(method); - List methPrmTypes = intDecl.getMethodParamTypes(method); + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + boolean structExist = false; + boolean begin = true; + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + structExist = true; + if (!begin) + print(", "); + else + begin = false; + int methodNumId = intDecl.getMethodNumId(method); + print("struct" + methodNumId + "Size" + i); + } + } + return structExist; + } + + + /** + * HELPER: writeMethodCallStructJavaSkeleton() writes method call for wait invoke in skeleton + */ + private void writeMethodCallStructJavaSkeleton(Collection methods, InterfaceDecl intDecl) { + + // Use this set to handle two same methodIds + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("case "); + String helperMethod = methodNumId + "struct" + i; + String tempVar = "struct" + methodNumId + "Size" + i; + print(intDecl.getHelperMethodNumId(helperMethod) + ": "); + print(tempVar + " = ___"); + println(helperMethod + "(); break;"); + } + } + } + } + + + /** + * HELPER: writeMethodCallStructCplusSkeleton() writes method call for wait invoke in skeleton + */ + private void writeMethodCallStructCplusSkeleton(Collection methods, InterfaceDecl intDecl) { + + // Use this set to handle two same methodIds + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("case "); + String helperMethod = methodNumId + "struct" + i; + String tempVar = "struct" + methodNumId + "Size" + i; + print(intDecl.getHelperMethodNumId(helperMethod) + ": "); + print(tempVar + " = ___"); + println(helperMethod + "(skel); break;"); + } + } + } + } + + + /** + * HELPER: writeMethodCallStructCallbackSkeleton() writes method call for wait invoke in skeleton + */ + private void writeMethodCallStructCallbackSkeleton(Collection methods, InterfaceDecl intDecl) { + + // Use this set to handle two same methodIds + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("case "); + String helperMethod = methodNumId + "struct" + i; + String tempVar = "struct" + methodNumId + "Size" + i; + print(intDecl.getHelperMethodNumId(helperMethod) + ": "); + print(tempVar + " = ___"); + println(helperMethod + "(rmiObj); break;"); + } + } + } + } + + + /** + * HELPER: writeJavaMethodPermission() writes permission checks in skeleton + */ + private void writeJavaMethodPermission(String intface) { + + // Get all the different stubs + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + println("if (_objectId == objectId) {"); + println("if (!set" + newObjectId + "Allowed.contains(methodId)) {"); + println("throw new Error(\"Object with object Id: \" + _objectId + \" is not allowed to access method: \" + methodId);"); + println("}"); + println("}"); + println("else {"); + println("continue;"); + println("}"); + } + } + + + /** + * HELPER: writeFinalInputCountVarStructSkeleton() writes the final version of input counter variable of struct for skeleton + */ + private boolean writeFinalInputCountVarStructSkeleton(String method, InterfaceDecl intDecl) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + boolean structExist = false; + boolean begin = true; + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + structExist = true; + int methodNumId = intDecl.getMethodNumId(method); + println("final int struct" + methodNumId + "Size" + i + + "Final = struct" + methodNumId + "Size" + i + ";"); + } + } + return structExist; + } + + + /** + * HELPER: writeJavaWaitRequestInvokeMethod() writes the main loop of the skeleton class + */ + private void writeJavaWaitRequestInvokeMethod(Collection methods, InterfaceDecl intDecl, String intface) { + + // Use this set to handle two same methodIds + Set uniqueMethodIds = new HashSet(); + println("public void ___waitRequestInvokeMethod() throws IOException {"); + // Write variables here if we have callbacks or enums or structs + writeCountVarStructSkeleton(methods, intDecl); + println("didAlreadyInitWaitInvoke.compareAndSet(false, true);"); + println("while (true) {"); + println("if (!methodReceived.get()) {"); + println("continue;"); + println("}"); + println("methodBytes = rmiComm.getMethodBytes();"); + println("methodReceived.set(false);"); + println("int _objectId = IoTRMIComm.getObjectId(methodBytes);"); + println("int methodId = IoTRMIComm.getMethodId(methodBytes);"); + // Generate permission check + writeJavaMethodPermission(intface); + println("switch (methodId) {"); + // Print methods and method Ids + for (String method : methods) { String methodId = intDecl.getMethodId(method); - print("public void ___"); + int methodNumId = intDecl.getMethodNumId(method); + println("case " + methodNumId + ":"); + // Check for stuct counters + writeFinalInputCountVarStructSkeleton(method, intDecl); + println("new Thread() {"); + println("public void run() {"); + println("try {"); + print("___"); String helperMethod = methodId; if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + intDecl.getMethodNumId(method); + helperMethod = helperMethod + methodNumId; else uniqueMethodIds.add(methodId); - // Check if this is "void" - String retType = intDecl.getMethodType(method); - if (retType.equals("void")) - println(helperMethod + "(IoTRMIObject rmiObj) {"); - else - println(helperMethod + "(IoTRMIObject rmiObj) throws IOException {"); - // Now, write the helper body of skeleton! - writeStdMethodHelperBodyJavaSkeleton(intDecl, methParams, methPrmTypes, method, callbackClasses); - println("}\n"); + print(helperMethod + "("); + writeInputCountVarStructJavaSkeleton(method, intDecl); + println(");"); + println("}"); + println("catch (Exception ex) {"); + println("ex.printStackTrace();"); + println("}"); + println("}"); + println("}.start();"); + println("break;"); + } + String method = "___initCallBack()"; + writeMethodCallStructJavaSkeleton(methods, intDecl); + println("default: "); + println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");"); + println("}"); + println("}"); + println("}\n"); + } + + + /** + * HELPER: writeReturnDidAlreadyInitWaitInvoke() writes the function to return didAlreadyInitWaitInvoke + */ + private void writeReturnDidAlreadyInitWaitInvoke() { + + println("public boolean didAlreadyInitWaitInvoke() {"); + println("return didAlreadyInitWaitInvoke.get();"); + println("}\n"); + } + + + /** + * generateJavaSkeletonClass() generate skeletons based on the methods list in Java + */ + public void generateJavaSkeletonClass() throws IOException { + + // Create a new directory + String path = createDirectories(dir, subdir); + for (String intface : mapIntfacePTH.keySet()) { + // Open a new file to write into + String newSkelClass = intface + "_Skeleton"; + FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java"); + pw = new PrintWriter(new BufferedWriter(fw)); + // Pass in set of methods and get import classes + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); + List methods = intDecl.getMethods(); + Set importClasses = getImportClasses(methods, intDecl); + List stdImportClasses = getStandardJavaImportClasses(); + List allImportClasses = getAllLibClasses(stdImportClasses, importClasses); + printImportStatements(allImportClasses); + // Find out if there are callback objects + Set callbackClasses = getCallbackClasses(methods, intDecl); + boolean callbackExist = !callbackClasses.isEmpty(); + // Write class header + println(""); + println("public class " + newSkelClass + " implements " + intface + " {\n"); + // Write properties + writePropertiesJavaSkeleton(intface, intDecl); + // Write constructor + writeConstructorJavaSkeleton(newSkelClass, intface, intDecl, methods, callbackExist); + // Write constructor that is called when this object is a callback object + writeCallbackConstructorJavaSkeleton(newSkelClass, intface, intDecl, methods, callbackExist); + // Write function to return didAlreadyInitWaitInvoke + writeReturnDidAlreadyInitWaitInvoke(); + // Write methods + writeMethodJavaSkeleton(methods, intDecl); + // Write method helper + writeMethodHelperJavaSkeleton(methods, intDecl, callbackClasses); + // Write waitRequestInvokeMethod() - main loop + writeJavaWaitRequestInvokeMethod(methods, intDecl, intface); + println("}"); + pw.close(); + System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".java..."); + } + } + + +/*================================================================================ + * + * C++ generation + * + *================================================================================/ + + /** + * HELPER: writeMethodCplusLocalInterface() writes the method of the local interface + */ + private void writeMethodCplusLocalInterface(Collection methods, InterfaceDecl intDecl) { + + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " + + intDecl.getMethodId(method) + "("); + for (int i = 0; i < methParams.size(); i++) { + // Check for params with driver class types and exchange it + // with its remote interface + String paramType = checkAndGetParamClass(methPrmTypes.get(i)); + paramType = checkAndGetCplusType(paramType); + // Check for arrays - translate into vector in C++ + String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i)); + print(paramComplete); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(") = 0;"); + } + } + + + /** + * HELPER: writeMethodCplusInterface() writes the method of the interface + */ + private void writeMethodCplusInterface(Collection methods, InterfaceDecl intDecl) { + + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " + + intDecl.getMethodId(method) + "("); + for (int i = 0; i < methParams.size(); i++) { + // Check for params with driver class types and exchange it + // with its remote interface + String paramType = methPrmTypes.get(i); + paramType = checkAndGetCplusType(paramType); + // Check for arrays - translate into vector in C++ + String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i)); + print(paramComplete); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(") = 0;"); + } + } + + + /** + * HELPER: generateEnumCplus() writes the enumeration declaration + */ + public void generateEnumCplus() throws IOException { + + // Create a new directory + createDirectory(dir); + for (String intface : mapIntfacePTH.keySet()) { + // Get the right StructDecl + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface); + Set enumTypes = enumDecl.getEnumDeclarations(); + // Iterate over enum declarations + for (String enType : enumTypes) { + // Open a new file to write into + FileWriter fw = new FileWriter(dir + "/" + enType + ".hpp"); + pw = new PrintWriter(new BufferedWriter(fw)); + // Write file headers + println("#ifndef _" + enType.toUpperCase() + "_HPP__"); + println("#define _" + enType.toUpperCase() + "_HPP__"); + println("enum " + enType + " {"); + List enumMembers = enumDecl.getMembers(enType); + for (int i = 0; i < enumMembers.size(); i++) { + + String member = enumMembers.get(i); + print(member); + // Check if this is the last element (don't print a comma) + if (i != enumMembers.size() - 1) + println(","); + else + println(""); + } + println("};\n"); + println("#endif"); + pw.close(); + System.out.println("IoTCompiler: Generated enum " + enType + ".hpp..."); + } + } + } + + + /** + * HELPER: generateStructCplus() writes the struct declaration + */ + public void generateStructCplus() throws IOException { + + // Create a new directory + createDirectory(dir); + for (String intface : mapIntfacePTH.keySet()) { + // Get the right StructDecl + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); + List structTypes = structDecl.getStructTypes(); + // Iterate over enum declarations + for (String stType : structTypes) { + // Open a new file to write into + FileWriter fw = new FileWriter(dir + "/" + stType + ".hpp"); + pw = new PrintWriter(new BufferedWriter(fw)); + // Write file headers + println("#ifndef _" + stType.toUpperCase() + "_HPP__"); + println("#define _" + stType.toUpperCase() + "_HPP__"); + println("using namespace std;"); + println("struct " + stType + " {"); + List structMemberTypes = structDecl.getMemberTypes(stType); + List structMembers = structDecl.getMembers(stType); + for (int i = 0; i < structMembers.size(); i++) { + + String memberType = structMemberTypes.get(i); + String member = structMembers.get(i); + String structTypeC = checkAndGetCplusType(memberType); + String structComplete = checkAndGetCplusArray(structTypeC, member); + println(structComplete + ";"); + } + println("};\n"); + println("#endif"); + pw.close(); + System.out.println("IoTCompiler: Generated struct " + stType + ".hpp..."); + } } } /** - * HELPER: writeJavaCallbackWaitRequestInvokeMethod() writes the main loop of the skeleton class + * generateCplusLocalInterfaces() writes the local interfaces and provides type-checking. + *

+ * It needs to rewrite and exchange USERDEFINED types in input parameters of stub + * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording. + * The local interface has to be the input parameter for the stub and the stub + * interface has to be the input parameter for the local class. + */ + public void generateCplusLocalInterfaces() throws IOException { + + // Create a new directory + createDirectory(dir); + for (String intface : mapIntfacePTH.keySet()) { + // Open a new file to write into + FileWriter fw = new FileWriter(dir + "/" + intface + ".hpp"); + pw = new PrintWriter(new BufferedWriter(fw)); + // Write file headers + println("#ifndef _" + intface.toUpperCase() + "_HPP__"); + println("#define _" + intface.toUpperCase() + "_HPP__"); + println("#include "); + // Pass in set of methods and get include classes + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); + List methods = intDecl.getMethods(); + Set includeClasses = getIncludeClasses(methods, intDecl, intface, true); + printIncludeStatements(includeClasses); println(""); + println("using namespace std;\n"); + Set callbackClasses = getCallbackClasses(methods, intDecl); + if (!intface.equals(mainClass)) // Forward declare if not main class + writeMethodCplusInterfaceForwardDecl(methods, intDecl, callbackClasses, true); + println("class " + intface); println("{"); + println("public:"); + // Write methods + writeMethodCplusLocalInterface(methods, intDecl); + println("};"); + println("#endif"); + pw.close(); + System.out.println("IoTCompiler: Generated local interface " + intface + ".hpp..."); + } + } + + + /** + * HELPER: writeMethodCplusInterfaceForwardDecl() writes the forward declaration of the interface + */ + private void writeMethodCplusInterfaceForwardDecl(Collection methods, InterfaceDecl intDecl, Set callbackClasses, boolean needNewIntface) { + + Set isDefined = new HashSet(); + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + for (int i = 0; i < methParams.size(); i++) { + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + // Check if this has callback object + if (callbackClasses.contains(paramType)) { + if (!isDefined.contains(paramType)) { + if (needNewIntface) + println("class " + getStubInterface(paramType) + ";\n"); + else + println("class " + paramType + ";\n"); + isDefined.add(paramType); + } + } + } + } + } + + + /** + * generateCPlusInterfaces() generate stub interfaces based on the methods list in C++ + *

+ * For C++ we use virtual classe as interface + */ + public void generateCPlusInterfaces() throws IOException { + + // Create a new directory + String path = createDirectories(dir, subdir); + for (String intface : mapIntfacePTH.keySet()) { + + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + + // Open a new file to write into + String newIntface = intMeth.getKey(); + FileWriter fw = new FileWriter(path + "/" + newIntface + ".hpp"); + pw = new PrintWriter(new BufferedWriter(fw)); + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); + // Write file headers + println("#ifndef _" + newIntface.toUpperCase() + "_HPP__"); + println("#define _" + newIntface.toUpperCase() + "_HPP__"); + println("#include "); + updateIntfaceObjIdMap(intface, newIntface); + // Pass in set of methods and get import classes + Set methods = intMeth.getValue(); + Set includeClasses = getIncludeClasses(methods, intDecl, intface, false); + printIncludeStatements(includeClasses); println(""); + println("using namespace std;\n"); + Set callbackClasses = getCallbackClasses(methods, intDecl); + writeMethodCplusInterfaceForwardDecl(methods, intDecl, callbackClasses, false); + println("class " + newIntface); + println("{"); + println("public:"); + // Write methods + writeMethodCplusInterface(methods, intDecl); + println("};"); + println("#endif"); + pw.close(); + System.out.println("IoTCompiler: Generated interface " + newIntface + ".hpp..."); + } + } + } + + + /** + * HELPER: writeMethodDeclCplusStub() writes the method declarations of the stub + */ + private void writeMethodDeclCplusStub(Collection methods, InterfaceDecl intDecl) { + + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " + + intDecl.getMethodId(method) + "("); + for (int i = 0; i < methParams.size(); i++) { + + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + String methPrmType = checkAndGetCplusType(methPrmTypes.get(i)); + String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); + print(methParamComplete); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(");"); + } + } + + + /** + * HELPER: writeMethodCplusStub() writes the methods of the stub + */ + private void writeMethodCplusStub(Collection methods, InterfaceDecl intDecl, Set callbackClasses, String newStubClass) { + + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Print the mutex lock first + int methodNumId = intDecl.getMethodNumId(method); + String mutexVar = "mtx" + newStubClass + "MethodExec" + methodNumId; + println("mutex " + mutexVar + ";"); + print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " + newStubClass + "::" + + intDecl.getMethodId(method) + "("); + boolean isCallbackMethod = false; + Set callbackType = new HashSet(); + for (int i = 0; i < methParams.size(); i++) { + + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + // Check if this has callback object + if (callbackClasses.contains(paramType)) { + isCallbackMethod = true; + //callbackType = paramType; + callbackType.add(paramType); + // Even if there're 2 callback arguments, we expect them to be of the same interface + } + String methPrmType = checkAndGetCplusType(methPrmTypes.get(i)); + String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); + print(methParamComplete); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(") { "); + println("lock_guard guard(" + mutexVar + ");"); + if (isCallbackMethod) + writeCallbackMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackType); + writeStdMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method, callbackType, isCallbackMethod); + println("}\n"); + + } + } + + + /** + * HELPER: writeCallbackInstantiationMethodBodyCplusStub() writes the callback object instantiation in the method of the stub class + */ + private void writeCallbackInstantiationMethodBodyCplusStub(String paramIdent, String callbackType, int counter) { + + println("auto it" + counter + " = IoTRMIUtil::mapSkel->find(" + paramIdent + ");"); + println("if (it" + counter + " == IoTRMIUtil::mapSkel->end()) {"); + println("int newObjIdSent = rmiComm->getObjectIdCounter();"); + println("objIdSent" + counter + ".push_back(newObjIdSent);"); + println("rmiComm->decrementObjectIdCounter();"); + println(callbackType + "_Skeleton* skel" + counter + " = new " + callbackType + "_Skeleton(" + paramIdent + ", rmiComm, newObjIdSent);"); + println("IoTRMIUtil::mapSkel->insert(make_pair(" + paramIdent + ", skel" + counter + "));"); + println("IoTRMIUtil::mapSkelId->insert(make_pair(" + paramIdent + ", newObjIdSent));"); + println("thread th" + counter + " (&" + callbackType + "_Skeleton::___waitRequestInvokeMethod, std::ref(skel" + counter + + "), std::ref(skel" + counter +"));"); + println("th" + counter + ".detach();"); + println("while(!skel" + counter + "->didInitWaitInvoke());"); + println("}"); + println("else"); + println("{"); + println("auto itId = IoTRMIUtil::mapSkelId->find(" + paramIdent + ");"); + println("objIdSent" + counter + ".push_back(itId->second);"); + println("}"); + } + + + /** + * HELPER: writeCallbackMethodBodyCplusStub() writes the callback method of the stub class + */ + private void writeCallbackMethodBodyCplusStub(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, Set callbackType) { + + // Check if this is single object, array, or list of objects + boolean isArrayOrList = false; + String callbackParam = null; + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + println("vector objIdSent" + i + ";"); + String param = methParams.get(i); + if (isArrayOrList(paramType, param)) { // Generate loop + println("for (" + getGenericType(paramType) + "* cb : " + getSimpleIdentifier(param) + ") {"); + writeCallbackInstantiationMethodBodyCplusStub("cb", returnGenericCallbackType(paramType), i); + isArrayOrList = true; + callbackParam = getSimpleIdentifier(param); + } else { + writeCallbackInstantiationMethodBodyCplusStub(getSimpleIdentifier(param), returnGenericCallbackType(paramType), i); + } + if (isArrayOrList) + println("}"); + println("vector ___paramCB" + i + " = objIdSent" + i + ";"); + } + } + } + + + /** + * HELPER: checkAndWriteEnumTypeCplusStub() writes the enum type (convert from enum to int) + */ + private void checkAndWriteEnumTypeCplusStub(List methParams, List methPrmTypes) { + + // Iterate and find enum declarations + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + if (isEnumClass(getGenericType(paramType))) { + // Check if this is enum type + if (isArrayOrList(paramType, param)) { // An array or vector + println("int len" + i + " = " + getSimpleIdentifier(param) + ".size();"); + println("vector paramEnum" + i + "(len" + i + ");"); + println("for (int i = 0; i < len" + i + "; i++) {"); + println("paramEnum" + i + "[i] = (int) " + getSimpleIdentifier(param) + "[i];"); + println("}"); + } else { // Just one element + println("vector paramEnum" + i + "(1);"); + println("paramEnum" + i + "[0] = (int) " + param + ";"); + } + } + } + } + + + /** + * HELPER: checkAndWriteEnumRetTypeCplusStub() writes the enum return type (convert from enum to int) + */ + private void checkAndWriteEnumRetTypeCplusStub(String retType, String method, InterfaceDecl intDecl) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(getGenericType(retType)); + // Take the inner type of generic + if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(retType); + if (isEnumClass(pureType)) { + // Check if this is enum type + println("vector retEnumInt;"); + println("void* retObj = &retEnumInt;"); + println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);"); + writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getReturnValue(retType, retObj);"); + if (isArrayOrList(retType, retType)) { // An array or vector + println("int retLen = retEnumInt.size();"); + println("vector<" + pureType + "> retVal(retLen);"); + println("for (int i = 0; i < retLen; i++) {"); + println("retVal[i] = (" + pureType + ") retEnumInt[i];"); + println("}"); + } else { // Just one element + println(pureType + " retVal = (" + pureType + ") retEnumInt[0];"); + } + println("return retVal;"); + } + } + + + /** + * HELPER: checkAndWriteStructSetupCplusStub() writes the struct type setup + */ + private void checkAndWriteStructSetupCplusStub(List methParams, List methPrmTypes, + InterfaceDecl intDecl, String method) { + + // Iterate and find struct declarations + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + // Check if this is enum type + println("int numParam" + i + " = 1;"); + int methodNumId = intDecl.getMethodNumId(method); + String helperMethod = methodNumId + "struct" + i; + println("int methodIdStruct" + i + " = " + intDecl.getHelperMethodNumId(helperMethod) + ";"); + //println("string retTypeStruct" + i + " = \"void\";"); + println("string paramClsStruct" + i + "[] = { \"int\" };"); + print("int structLen" + i + " = "); + if (isArrayOrList(paramType, param)) { // An array + println(getSimpleArrayType(param) + ".size();"); + } else { // Just one element + println("1;"); + } + println("void* paramObjStruct" + i + "[] = { &structLen" + i + " };"); + //println("void* retStructLen" + i + " = NULL;"); + println("rmiComm->remoteCall(objectId, methodIdStruct" + i + + ", paramClsStruct" + i + ", paramObjStruct" + i + + ", numParam" + i + ");\n"); + } + } + } + + + /** + * HELPER: writeLengthStructParamClassCplusStub() writes lengths of params + */ + private void writeLengthStructParamClassCplusStub(List methParams, List methPrmTypes) { + + // Iterate and find struct declarations - count number of params + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int members = getNumOfMembers(simpleType); + if (isArrayOrList(paramType, param)) { // An array or list + String structLen = getSimpleIdentifier(param) + ".size()"; + print(members + "*" + structLen); + } else + print(Integer.toString(members)); + } else + print("1"); + if (i != methParams.size() - 1) { + print("+"); + } + } + } + + + /** + * HELPER: writeStructMembersCplusStub() writes member parameters of struct + */ + private void writeStructMembersCplusStub(String simpleType, String paramType, String param) { + + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArrayOrList(paramType, param)) { // An array or list + println("for(int i = 0; i < " + getSimpleIdentifier(param) + ".size(); i++) {"); + } + if (isArrayOrList(paramType, param)) { // An array or list + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("paramCls[pos] = \"" + prmTypeC + "\";"); + print("paramObj[pos++] = &" + getSimpleIdentifier(param) + "[i]."); + print(getSimpleIdentifier(members.get(i))); + println(";"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("paramCls[pos] = \"" + prmTypeC + "\";"); + print("paramObj[pos++] = &" + param + "."); + print(getSimpleIdentifier(members.get(i))); + println(";"); + } + } + } + + + /** + * HELPER: writeStructParamClassCplusStub() writes member parameters of struct + */ + private void writeStructParamClassCplusStub(List methParams, List methPrmTypes, Set callbackType) { + + print("int numParam = "); + writeLengthStructParamClassCplusStub(methParams, methPrmTypes); + println(";"); + println("void* paramObj[numParam];"); + println("string paramCls[numParam];"); + println("int pos = 0;"); + // Iterate again over the parameters + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + writeStructMembersCplusStub(simpleType, paramType, param); + } else if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + println("paramCls[pos] = \"int\";"); + println("paramObj[pos++] = &___paramCB" + i + ";"); + } else { + String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i)); + println("paramCls[pos] = \"" + prmTypeC + "\";"); + print("paramObj[pos++] = &"); + print(getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i)); + println(";"); + } + } + + } + + + /** + * HELPER: writeStructRetMembersCplusStub() writes member parameters of struct for return statement + */ + private void writeStructRetMembersCplusStub(String simpleType, String retType) { + + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArrayOrList(retType, retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + } + if (isArrayOrList(retType, retType)) { // An array or list + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + print("structRet[i]." + getSimpleIdentifier(members.get(i))); + println(" = retParam" + i + "[i];"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmType = checkAndGetArray(memTypes.get(i), members.get(i)); + print("structRet." + getSimpleIdentifier(members.get(i))); + println(" = retParam" + i + ";"); + } + } + println("return structRet;"); + } + + + /** + * HELPER: writeStructReturnCplusStub() writes member parameters of struct for return statement + */ + private void writeStructReturnCplusStub(String simpleType, String retType, String method, InterfaceDecl intDecl) { + + // Minimum retLen is 1 if this is a single struct object + println("int retLen = 0;"); + println("void* retLenObj = { &retLen };"); + // Handle the returned struct!!! + println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);"); + writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getReturnValue(retType, retLenObj);"); + int numMem = getNumOfMembers(simpleType); + println("int numRet = " + numMem + "*retLen;"); + println("string retCls[numRet];"); + println("void* retObj[numRet];"); + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + // Set up variables + if (isArrayOrList(retType, retType)) { // An array or list + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusType(memTypes.get(i)); + String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i)); + println(getSimpleType(getEnumType(prmType)) + " retParam" + i + "[retLen];"); + } + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusType(memTypes.get(i)); + String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i)); + println(getSimpleType(getEnumType(prmType)) + " retParam" + i + ";"); + } + } + println("int retPos = 0;"); + // Get the struct declaration for this struct and generate initialization code + if (isArrayOrList(retType, retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("retCls[retPos] = \"" + prmTypeC + "\";"); + println("retObj[retPos++] = &retParam" + i + "[i];"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("retCls[retPos] = \"" + prmTypeC + "\";"); + println("retObj[retPos++] = &retParam" + i + ";"); + } + } + //println("rmiComm->getStructObjects(retCls, numRet, retObj);"); + writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getStructObjects(retCls, numRet, retObj);"); + if (isArrayOrList(retType, retType)) { // An array or list + println("vector<" + simpleType + "> structRet(retLen);"); + } else + println(simpleType + " structRet;"); + writeStructRetMembersCplusStub(simpleType, retType); + } + + + /** + * HELPER: writeWaitForReturnValueCplus() writes the synchronization part for return values + */ + private void writeWaitForReturnValueCplus(String method, InterfaceDecl intDecl, String getReturnValue) { + + println("// Waiting for return value"); + int methodNumId = intDecl.getMethodNumId(method); + println("while (!retValueReceived" + methodNumId + ");"); + println(getReturnValue); + println("retValueReceived" + methodNumId + " = false;"); + println("didGetReturnBytes.exchange(true);\n"); + } + + + /** + * HELPER: writeStdMethodBodyCplusStub() writes the standard method body in the stub class + */ + private void writeStdMethodBodyCplusStub(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, Set callbackType, boolean isCallbackMethod) { + + checkAndWriteStructSetupCplusStub(methParams, methPrmTypes, intDecl, method); + println("int methodId = " + intDecl.getMethodNumId(method) + ";"); + String retType = intDecl.getMethodType(method); + println("string retType = \"" + checkAndGetCplusRetClsType(getStructType(getEnumType(retType))) + "\";"); + checkAndWriteEnumTypeCplusStub(methParams, methPrmTypes); + // Generate array of parameter types + if (isStructPresent(methParams, methPrmTypes)) { + writeStructParamClassCplusStub(methParams, methPrmTypes, callbackType); + } else { + println("int numParam = " + methParams.size() + ";"); + print("string paramCls[] = { "); + for (int i = 0; i < methParams.size(); i++) { + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (checkCallbackType(paramType, callbackType)) { + print("\"int*\""); + } else { + String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i)); + print("\"" + paramTypeC + "\""); + } + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(" };"); + // Generate array of parameter objects + print("void* paramObj[] = { "); + for (int i = 0; i < methParams.size(); i++) { + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (checkCallbackType(paramType, callbackType)) // Check if this has callback object + print("&___paramCB" + i); + else + print("&" + getEnumParam(methPrmTypes.get(i), getSimpleIdentifier(methParams.get(i)), i)); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } + } + println(" };"); + } + // Check if this is "void" + if (retType.equals("void")) { + println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);"); + } else { // We do have a return value + // Generate array of parameter types + if (isStructClass(getGenericType(getSimpleArrayType(retType)))) { + writeStructReturnCplusStub(getGenericType(getSimpleArrayType(retType)), retType, method, intDecl); + } else { + // Check if the return value NONPRIMITIVES + if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) { + checkAndWriteEnumRetTypeCplusStub(retType, method, intDecl); + } else { + //if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) + if (isArrayOrList(retType,retType)) + println(checkAndGetCplusType(retType) + " retVal;"); + else { + println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";"); + } + println("void* retObj = &retVal;"); + println("rmiComm->remoteCall(objectId, methodId, paramCls, paramObj, numParam);"); + writeWaitForReturnValueCplus(method, intDecl, "rmiComm->getReturnValue(retType, retObj);"); + println("return retVal;"); + } + } + } + } + + + /** + * HELPER: writePropertiesCplusPermission() writes the properties of the stub class + */ + private void writePropertiesCplusPermission(String intface) { + + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + println("static set set" + newObjectId + "Allowed;"); + } + } + + /** + * HELPER: writePropertiesCplusStub() writes the properties of the stub class + */ + private void writePropertiesCplusStub(String intface, String newIntface, boolean callbackExist, + Set callbackClasses, Set methods, InterfaceDecl intDecl) { + + println("IoTRMIComm *rmiComm;"); + // Get the object Id + Integer objId = mapIntfaceObjId.get(intface); + println("int objectId = " + objId + ";"); + println("// Synchronization variables"); + for (String method : methods) { + // Generate AtomicBooleans for methods that have return values + String returnType = intDecl.getMethodType(method); + int methodNumId = intDecl.getMethodNumId(method); + if (!returnType.equals("void")) { + println("bool retValueReceived" + methodNumId + " = false;"); + } + } + println("\n"); + } + + + /** + * HELPER: writeConstructorCplusStub() writes the constructor of the stub class + */ + private void writeConstructorCplusStub(String newStubClass, boolean callbackExist, + Set callbackClasses, Set methods, InterfaceDecl intDecl) { + + println(newStubClass + "::" + newStubClass + + "(int _portSend, int _portRecv, const char* _skeletonAddress, int _rev, bool* _bResult) {"); + println("rmiComm = new IoTRMICommClient(_portSend, _portRecv, _skeletonAddress, _rev, _bResult);"); + // Register the AtomicBoolean variables + for (String method : methods) { + // Generate AtomicBooleans for methods that have return values + String returnType = intDecl.getMethodType(method); + int methodNumId = intDecl.getMethodNumId(method); + if (!returnType.equals("void")) { + println("rmiComm->registerStub(objectId, " + methodNumId + ", &retValueReceived" + methodNumId + ");"); + } + } + println("IoTRMIUtil::mapStub->insert(make_pair(objectId, this));"); + println("}\n"); + } + + + /** + * HELPER: writeCallbackConstructorCplusStub() writes the callback constructor of the stub class + */ + private void writeCallbackConstructorCplusStub(String newStubClass, boolean callbackExist, + Set callbackClasses, Set methods, InterfaceDecl intDecl) { + + println(newStubClass + "::" + newStubClass + "(IoTRMIComm* _rmiComm, int _objectId) {"); + println("rmiComm = _rmiComm;"); + println("objectId = _objectId;"); + // Register the AtomicBoolean variables + for (String method : methods) { + // Generate AtomicBooleans for methods that have return values + String returnType = intDecl.getMethodType(method); + int methodNumId = intDecl.getMethodNumId(method); + if (!returnType.equals("void")) { + println("rmiComm->registerStub(objectId, " + methodNumId + ", &retValueReceived" + methodNumId + ");"); + } + } + println("}\n"); + } + + + /** + * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class + */ + private void writeDeconstructorCplusStub(String newStubClass, boolean callbackExist, Set callbackClasses) { + + println(newStubClass + "::~" + newStubClass + "() {"); + println("if (rmiComm != NULL) {"); + println("delete rmiComm;"); + println("rmiComm = NULL;"); + println("}"); + println("}"); + println(""); + } + + + /** + * generateCPlusStubClassesHpp() generate stubs based on the methods list in C++ (.hpp file) + */ + public void generateCPlusStubClassesHpp() throws IOException { + + // Create a new directory + String path = createDirectories(dir, subdir); + for (String intface : mapIntfacePTH.keySet()) { + + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + // Open a new file to write into + String newIntface = intMeth.getKey(); + String newStubClass = newIntface + "_Stub"; + FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp"); + pw = new PrintWriter(new BufferedWriter(fw)); + // Write file headers + println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__"); + println("#define _" + newStubClass.toUpperCase() + "_HPP__"); + println("#include "); + // Find out if there are callback objects + Set methods = intMeth.getValue(); + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); + Set callbackClasses = getCallbackClasses(methods, intDecl); + boolean callbackExist = !callbackClasses.isEmpty(); + println("#include "); + println("#include "); + List stdIncludeClasses = getStandardCplusIncludeClasses(); + printIncludeStatements(stdIncludeClasses); println(""); + println("#include \"" + newIntface + ".hpp\""); println(""); + println("using namespace std;"); println(""); + println("class " + newStubClass + " : public " + newIntface); println("{"); + println("private:\n"); + writePropertiesCplusStub(intface, newIntface, callbackExist, callbackClasses, methods, intDecl); + println("public:\n"); + // Add default constructor and destructor + println(newStubClass + "();"); + // Declarations + println(newStubClass + "(int _portSend, int _portRecv, const char* _skeletonAddress, int _rev, bool* _bResult);"); + println(newStubClass + "(IoTRMIComm* _rmiComm, int _objectId);"); + println("~" + newStubClass + "();"); + // Write methods + writeMethodDeclCplusStub(methods, intDecl); + print("}"); println(";"); + println("#endif"); + pw.close(); + System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".hpp..."); + } + } + } + + + /** + * writeStubExternalCFunctions() generate external functions for .so file + */ + public void writeStubExternalCFunctions(String newStubClass) throws IOException { + + println("extern \"C\" void* create" + newStubClass + "(void** params) {"); + println("// Args: int _portSend, int _portRecv, const char* _skeletonAddress, int _rev, bool* _bResult"); + println("return new " + newStubClass + "(*((int*) params[0]), *((int*) params[1]), ((string*) params[2])->c_str(), " + + "*((int*) params[3]), (bool*) params[4]);"); + println("}\n"); + println("extern \"C\" void destroy" + newStubClass + "(void* t) {"); + println(newStubClass + "* obj = (" + newStubClass + "*) t;"); + println("delete obj;"); + println("}\n"); + println("extern \"C\" void init" + newStubClass + "(void* t) {"); + //println(newStubClass + "* obj = (" + newStubClass + "*) t;"); + //println("obj->init();"); + //println("while(true);"); + println("}\n"); + } + + + /** + * generateCPlusStubClassesCpp() generate stubs based on the methods list in C++ (.cpp file) + */ + public void generateCPlusStubClassesCpp() throws IOException { + + // Create a new directory + String path = createDirectories(dir, subdir); + for (String intface : mapIntfacePTH.keySet()) { + + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + // Open a new file to write into + String newIntface = intMeth.getKey(); + String newStubClass = newIntface + "_Stub"; + FileWriter fw = new FileWriter(path + "/" + newStubClass + ".cpp"); + pw = new PrintWriter(new BufferedWriter(fw)); + // Write file headers + println("#include "); + // Find out if there are callback objects + Set methods = intMeth.getValue(); + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); + Set callbackClasses = getCallbackClasses(methods, intDecl); + boolean callbackExist = !callbackClasses.isEmpty(); + println("#include \"" + newStubClass + ".hpp\""); println(""); + for(String str: callbackClasses) { + if (intface.equals(mainClass)) + println("#include \"" + str + "_Skeleton.cpp\"\n"); + else + println("#include \"" + str + "_Skeleton.hpp\"\n"); + } + println("using namespace std;"); println(""); + // Add default constructor and destructor + //println(newStubClass + "() { }"); println(""); + writeConstructorCplusStub(newStubClass, callbackExist, callbackClasses, methods, intDecl); + writeCallbackConstructorCplusStub(newStubClass, callbackExist, callbackClasses, methods, intDecl); + writeDeconstructorCplusStub(newStubClass, callbackExist, callbackClasses); + // Write methods + writeMethodCplusStub(methods, intDecl, callbackClasses, newStubClass); + // Write external functions for .so file + writeStubExternalCFunctions(newStubClass); + // TODO: Remove this later + if (intface.equals(mainClass)) { + println("int main() {"); + println("return 0;"); + println("}"); + } + pw.close(); + System.out.println("IoTCompiler: Generated stub class " + newStubClass + ".cpp..."); + } + } + } + + + /** + * HELPER: writePropertiesCplusSkeleton() writes the properties of the skeleton class + */ + private void writePropertiesCplusSkeleton(String intface, boolean callbackExist, Set callbackClasses) { + + println(intface + " *mainObj;"); + println("IoTRMIComm *rmiComm;"); + println("char* methodBytes;"); + println("int methodLen;"); + Integer objId = mapIntfaceObjId.get(intface); + println("int objectId = " + objId + ";"); + // Keep track of object Ids of all stubs registered to this interface + writePropertiesCplusPermission(intface); + println("// Synchronization variables"); + println("bool methodReceived = false;"); + println("bool didAlreadyInitWaitInvoke = false;"); + println("\n"); + } + + + /** + * HELPER: writeObjectIdCountInitializationCplus() writes the initialization of objIdCnt variable + */ + private void writeObjectIdCountInitializationCplus(String newSkelClass, boolean callbackExist) { + + if (callbackExist) + println("int " + newSkelClass + "::objIdCnt = 0;"); + } + + + /** + * HELPER: writePermissionInitializationCplus() writes the initialization of permission set + */ + private void writePermissionInitializationCplus(String intface, String newSkelClass, InterfaceDecl intDecl) { + + // Keep track of object Ids of all stubs registered to this interface + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + print("set " + newSkelClass + "::set" + newObjectId + "Allowed { "); + Set methodIds = intMeth.getValue(); + int i = 0; + for (String methodId : methodIds) { + int methodNumId = intDecl.getMethodNumId(methodId); + print(Integer.toString(methodNumId)); + // Check if this is the last element (don't print a comma) + if (i != methodIds.size() - 1) { + print(", "); + } + i++; + } + println(" };"); + } + } + + + /** + * HELPER: writeStructPermissionCplusSkeleton() writes permission for struct helper + */ + private void writeStructPermissionCplusSkeleton(Collection methods, InterfaceDecl intDecl, String intface) { + + // Use this set to handle two same methodIds + for (String method : methods) { + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + String helperMethod = methodNumId + "struct" + i; + int helperMethodNumId = intDecl.getHelperMethodNumId(helperMethod); + // Iterate over interfaces to give permissions to + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + println("set" + newObjectId + "Allowed.insert(" + helperMethodNumId + ");"); + } + } + } + } + } + + + /** + * HELPER: writeConstructorCplusSkeleton() writes the constructor of the skeleton class + */ + private void writeConstructorCplusSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection methods) { + + println(newSkelClass + "::" + newSkelClass + "(" + intface + " *_mainObj, int _portSend, int _portRecv) {"); + println("bool _bResult = false;"); + println("mainObj = _mainObj;"); + println("rmiComm = new IoTRMICommServer(_portSend, _portRecv, &_bResult);"); + println("IoTRMIUtil::mapSkel->insert(make_pair(_mainObj, this));"); + println("IoTRMIUtil::mapSkelId->insert(make_pair(_mainObj, objectId));"); + println("rmiComm->registerSkeleton(objectId, &methodReceived);"); + writeStructPermissionCplusSkeleton(methods, intDecl, intface); + println("thread th1 (&" + newSkelClass + "::___waitRequestInvokeMethod, this, this);"); + println("th1.join();"); + println("}\n"); + } + + + /** + * HELPER: writeCallbackConstructorCplusSkeleton() writes the callback constructor of the skeleton class */ - private void writeJavaCallbackWaitRequestInvokeMethod(Collection methods, InterfaceDecl intDecl, boolean callbackExist) { + private void writeCallbackConstructorCplusSkeleton(String newSkelClass, String intface, boolean callbackExist, InterfaceDecl intDecl, Collection methods) { - // Use this set to handle two same methodIds - Set uniqueMethodIds = new HashSet(); - println("public void invokeMethod(IoTRMIObject rmiObj) throws IOException {"); - // Write variables here if we have callbacks or enums or structs - println("int methodId = rmiObj.getMethodId();"); - // TODO: code the permission check here! - println("switch (methodId) {"); - // Print methods and method Ids - for (String method : methods) { - String methodId = intDecl.getMethodId(method); - int methodNumId = intDecl.getMethodNumId(method); - print("case " + methodNumId + ": ___"); - String helperMethod = methodId; - if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + methodNumId; - else - uniqueMethodIds.add(methodId); - println(helperMethod + "(rmiObj); break;"); - } - String method = "___initCallBack()"; - // Print case -9999 (callback handler) if callback exists - if (callbackExist) { - int methodId = intDecl.getHelperMethodNumId(method); - println("case " + methodId + ": ___regCB(); break;"); - } - println("default: "); - println("throw new Error(\"Method Id \" + methodId + \" not recognized!\");"); - println("}"); + println(newSkelClass + "::" + newSkelClass + "(" + intface + " *_mainObj, IoTRMIComm *_rmiComm, int _objectId) {"); + println("bool _bResult = false;"); + println("mainObj = _mainObj;"); + println("rmiComm = _rmiComm;"); + println("objectId = _objectId;"); + println("rmiComm->registerSkeleton(objectId, &methodReceived);"); + writeStructPermissionCplusSkeleton(methods, intDecl, intface); println("}\n"); } /** - * generateJavaCallbackSkeletonClass() generate callback skeletons based on the methods list in Java + * HELPER: writeDeconstructorCplusSkeleton() writes the deconstructor of the skeleton class */ - public void generateJavaCallbackSkeletonClass() throws IOException { + private void writeDeconstructorCplusSkeleton(String newSkelClass, boolean callbackExist, Set callbackClasses) { - // Create a new directory - String path = createDirectories(dir, subdir); - for (String intface : mapIntfacePTH.keySet()) { - // Open a new file to write into - String newSkelClass = intface + "_CallbackSkeleton"; - FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".java"); - pw = new PrintWriter(new BufferedWriter(fw)); - // Pass in set of methods and get import classes - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - List methods = intDecl.getMethods(); - Set importClasses = getImportClasses(methods, intDecl); - List stdImportClasses = getStandardJavaImportClasses(); - List allImportClasses = getAllImportClasses(stdImportClasses, importClasses); - printImportStatements(allImportClasses); - // Find out if there are callback objects - Set callbackClasses = getCallbackClasses(methods, intDecl); - boolean callbackExist = !callbackClasses.isEmpty(); - // Write class header - println(""); - println("public class " + newSkelClass + " implements " + intface + " {\n"); - // Write properties - writePropertiesJavaCallbackSkeleton(intface, callbackExist); - // Write constructor - writeConstructorJavaCallbackSkeleton(newSkelClass, intface); - // Write methods - writeMethodJavaSkeleton(methods, intDecl, callbackClasses); - // Write method helper - writeMethodHelperJavaCallbackSkeleton(methods, intDecl, callbackClasses); - // Write waitRequestInvokeMethod() - main loop - writeJavaCallbackWaitRequestInvokeMethod(methods, intDecl, callbackExist); - println("}"); - pw.close(); - System.out.println("IoTCompiler: Generated callback skeleton class " + newSkelClass + ".java..."); + println(newSkelClass + "::~" + newSkelClass + "() {"); + println("if (rmiComm != NULL) {"); + println("delete rmiComm;"); + println("rmiComm = NULL;"); + println("}"); + println("}"); + println(""); + } + + + /** + * HELPER: writeStdMethodBodyCplusSkeleton() writes the standard method body in the skeleton class + */ + private void writeStdMethodBodyCplusSkeleton(List methParams, String methodId, String methodType) { + + if (methodType.equals("void")) + print("mainObj->" + methodId + "("); + else + print("return mainObj->" + methodId + "("); + for (int i = 0; i < methParams.size(); i++) { + + print(getSimpleIdentifier(methParams.get(i))); + // Check if this is the last element (don't print a comma) + if (i != methParams.size() - 1) { + print(", "); + } } + println(");"); } /** - * HELPER: writeMethodCplusInterface() writes the method of the interface + * HELPER: writeMethodDeclCplusSkeleton() writes the method declaration of the skeleton class */ - private void writeMethodCplusInterface(Collection methods, InterfaceDecl intDecl) { + private void writeMethodDeclCplusSkeleton(Collection methods, InterfaceDecl intDecl, + Set callbackClasses) { for (String method : methods) { List methParams = intDecl.getMethodParams(method); List methPrmTypes = intDecl.getMethodParamTypes(method); - print("virtual " + checkAndGetCplusType(intDecl.getMethodType(method)) + " " + - intDecl.getMethodId(method) + "("); + String methodId = intDecl.getMethodId(method); + String methodType = checkAndGetCplusType(intDecl.getMethodType(method)); + print(methodType + " " + methodId + "("); + boolean isCallbackMethod = false; + String callbackType = null; for (int i = 0; i < methParams.size(); i++) { - // Check for params with driver class types and exchange it - // with its remote interface - //String paramType = checkAndGetParamClass(methPrmTypes.get(i), true); - String paramType = methPrmTypes.get(i); - paramType = checkAndGetCplusType(paramType); - // Check for arrays - translate into vector in C++ - String paramComplete = checkAndGetCplusArray(paramType, methParams.get(i)); - print(paramComplete); + + String origParamType = methPrmTypes.get(i); + if (callbackClasses.contains(origParamType)) { // Check if this has callback object + isCallbackMethod = true; + callbackType = origParamType; + } + String paramType = checkAndGetParamClass(methPrmTypes.get(i)); + String methPrmType = checkAndGetCplusType(paramType); + String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); + print(methParamComplete); // Check if this is the last element (don't print a comma) if (i != methParams.size() - 1) { print(", "); } } - println(") = 0;"); + println(");"); } } /** - * HELPER: writeEnumCplus() writes the enumeration declaration + * HELPER: writeMethodCplusSkeleton() writes the method of the skeleton class */ - private void writeEnumCplus(EnumDecl enumDecl) { + private void writeMethodCplusSkeleton(Collection methods, InterfaceDecl intDecl, String newSkelClass) { - Set enumTypes = enumDecl.getEnumDeclarations(); - // Iterate over enum declarations - for (String enType : enumTypes) { + for (String method : methods) { - println("enum " + enType + " {"); - List enumMembers = enumDecl.getMembers(enType); - for (int i = 0; i < enumMembers.size(); i++) { + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + String methodId = intDecl.getMethodId(method); + String methodType = checkAndGetCplusType(intDecl.getMethodType(method)); + print(methodType + " " + newSkelClass + "::" + methodId + "("); + for (int i = 0; i < methParams.size(); i++) { - String member = enumMembers.get(i); - print(member); + String origParamType = methPrmTypes.get(i); + String paramType = checkAndGetParamClass(methPrmTypes.get(i)); + String methPrmType = checkAndGetCplusType(paramType); + String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); + print(methParamComplete); // Check if this is the last element (don't print a comma) - if (i != enumMembers.size() - 1) - println(","); - else - println(""); + if (i != methParams.size() - 1) { + print(", "); + } } - println("};\n"); + println(") {"); + // Now, write the body of skeleton! + writeStdMethodBodyCplusSkeleton(methParams, methodId, intDecl.getMethodType(method)); + println("}\n"); } } /** - * HELPER: writeStructCplus() writes the struct declaration + * HELPER: writeCallbackCplusNumStubs() writes the numStubs variable */ - private void writeStructCplus(StructDecl structDecl) { + private void writeCallbackCplusNumStubs(List methParams, List methPrmTypes, Set callbackType) { - List structTypes = structDecl.getStructTypes(); - // Iterate over enum declarations - for (String stType : structTypes) { + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + //if (callbackType.equals(paramType)) { + if (checkCallbackType(paramType, callbackType)) // Check if this has callback object + //println("int numStubs" + i + " = 0;"); + println("vector numStubIdArray" + i + ";"); + } + } - println("struct " + stType + " {"); - List structMemberTypes = structDecl.getMemberTypes(stType); - List structMembers = structDecl.getMembers(stType); - for (int i = 0; i < structMembers.size(); i++) { - String memberType = structMemberTypes.get(i); - String member = structMembers.get(i); - String structTypeC = checkAndGetCplusType(memberType); - String structComplete = checkAndGetCplusArray(structTypeC, member); - println(structComplete + ";"); - } - println("};\n"); - } + /** + * HELPER: writeCallbackInstantiationCplusStubGeneration() writes the instantiation of callback stubs + */ + private void writeCallbackInstantiationCplusStubGeneration(String exchParamType, int counter) { + + println(exchParamType + "* newStub" + counter + " = NULL;"); + println("auto it" + counter + " = IoTRMIUtil::mapStub->find(objIdRecv" + counter + ");"); + println("if (it" + counter + " == IoTRMIUtil::mapStub->end()) {"); + println("newStub" + counter + " = new " + exchParamType + "_Stub(rmiComm, objIdRecv" + counter + ");"); + println("IoTRMIUtil::mapStub->insert(make_pair(objIdRecv" + counter + ", newStub" + counter + "));"); + println("rmiComm->setObjectIdCounter(objIdRecv" + counter + ");"); + println("rmiComm->decrementObjectIdCounter();"); + println("}"); + println("else {"); + println("newStub" + counter + " = (" + exchParamType + "_Stub*) it" + counter + "->second;"); + println("}"); } /** - * generateCplusLocalInterfaces() writes the local interfaces and provides type-checking. - *

- * It needs to rewrite and exchange USERDEFINED types in input parameters of stub - * and original interfaces, e.g. exchange Camera and CameraWithVideoAndRecording. - * The local interface has to be the input parameter for the stub and the stub - * interface has to be the input parameter for the local class. + * HELPER: writeCallbackCplusStubGeneration() writes the callback stub generation part */ - public void generateCplusLocalInterfaces() throws IOException { + private void writeCallbackCplusStubGeneration(List methParams, List methPrmTypes, Set callbackType) { - // Create a new directory - createDirectory(dir); - for (String intface : mapIntfacePTH.keySet()) { - // Open a new file to write into - FileWriter fw = new FileWriter(dir + "/" + intface + ".hpp"); - pw = new PrintWriter(new BufferedWriter(fw)); - // Write file headers - println("#ifndef _" + intface.toUpperCase() + "_HPP__"); - println("#define _" + intface.toUpperCase() + "_HPP__"); - println("#include "); - // Pass in set of methods and get include classes - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - List methods = intDecl.getMethods(); - Set includeClasses = getIncludeClasses(methods, intDecl); - printIncludeStatements(includeClasses); println(""); - println("using namespace std;\n"); - // Write enum if any... - EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface); - writeEnumCplus(enumDecl); - // Write struct if any... - StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); - writeStructCplus(structDecl); - println("class " + intface); println("{"); - println("public:"); - // Write methods - writeMethodCplusInterface(methods, intDecl); - println("};"); - println("#endif"); - pw.close(); - System.out.println("IoTCompiler: Generated local interface " + intface + ".hpp..."); + // Iterate over callback objects + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + // Generate a loop if needed + if (checkCallbackType(paramType, callbackType)) { // Check if this has callback object + String exchParamType = checkAndGetParamClass(getGenericType(paramType)); + if (isArrayOrList(paramType, param)) { + println("vector<" + exchParamType + "*> stub" + i + ";"); + println("for (int i = 0; i < numStubIdArray" + i + ".size(); i++) {"); + println("int objIdRecv" + i + " = numStubIdArray" + i + "[i];"); + writeCallbackInstantiationCplusStubGeneration(exchParamType, i); + println("stub" + i + ".push_back(newStub" + i + ");"); + println("}"); + } else { + println("int objIdRecv" + i + " = numStubIdArray" + i + "[0];"); + writeCallbackInstantiationCplusStubGeneration(exchParamType, i); + println(exchParamType + "* stub" + i + " = newStub" + i + ";"); + } + } } } /** - * generateCPlusInterfaces() generate stub interfaces based on the methods list in C++ - *

- * For C++ we use virtual classe as interface + * HELPER: checkAndWriteEnumTypeCplusSkeleton() writes the enum type (convert from enum to int) */ - public void generateCPlusInterfaces() throws IOException { - - // Create a new directory - String path = createDirectories(dir, subdir); - for (String intface : mapIntfacePTH.keySet()) { - - Map> mapNewIntMethods = mapInt2NewInts.get(intface); - for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + private void checkAndWriteEnumTypeCplusSkeleton(List methParams, List methPrmTypes) { - // Open a new file to write into - String newIntface = intMeth.getKey(); - FileWriter fw = new FileWriter(path + "/" + newIntface + ".hpp"); - pw = new PrintWriter(new BufferedWriter(fw)); - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - // Write file headers - println("#ifndef _" + newIntface.toUpperCase() + "_HPP__"); - println("#define _" + newIntface.toUpperCase() + "_HPP__"); - println("#include "); - // Pass in set of methods and get import classes - Set includeClasses = getIncludeClasses(intMeth.getValue(), intDecl); - List stdIncludeClasses = getStandardCplusIncludeClasses(); - List allIncludeClasses = getAllImportClasses(stdIncludeClasses, includeClasses); - printIncludeStatements(allIncludeClasses); println(""); - println("using namespace std;\n"); - println("class " + newIntface); - println("{"); - println("public:"); - // Write methods - writeMethodCplusInterface(intMeth.getValue(), intDecl); - println("};"); - println("#endif"); - pw.close(); - System.out.println("IoTCompiler: Generated interface " + newIntface + ".hpp..."); + // Iterate and find enum declarations + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isEnumClass(simpleType)) { + // Check if this is enum type + if (isArrayOrList(paramType, param)) { // An array + println("int len" + i + " = paramEnumInt" + i + ".size();"); + println("vector<" + simpleType + "> paramEnum" + i + "(len" + i + ");"); + println("for (int i=0; i < len" + i + "; i++) {"); + println("paramEnum" + i + "[i] = (" + simpleType + ") paramEnumInt" + i + "[i];"); + println("}"); + } else { // Just one element + println(simpleType + " paramEnum" + i + ";"); + println("paramEnum" + i + " = (" + simpleType + ") paramEnumInt" + i + "[0];"); + } } } } /** - * HELPER: writeMethodCplusStub() writes the method of the stub + * HELPER: checkAndWriteEnumRetTypeCplusSkeleton() writes the enum return type (convert from enum to int) */ - private void writeMethodCplusStub(Collection methods, InterfaceDecl intDecl) { + private void checkAndWriteEnumRetTypeCplusSkeleton(String retType) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(getGenericType(retType)); + // Take the inner type of generic + if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(retType); + if (isEnumClass(pureType)) { + // Check if this is enum type + // Enum decoder + if (isArrayOrList(retType, retType)) { // An array + println("int retLen = retEnum.size();"); + println("vector retEnumInt(retLen);"); + println("for (int i=0; i < retLen; i++) {"); + println("retEnumInt[i] = (int) retEnum[i];"); + println("}"); + } else { // Just one element + println("vector retEnumInt(1);"); + println("retEnumInt[0] = (int) retEnum;"); + } + } + } - for (String method : methods) { - List methParams = intDecl.getMethodParams(method); - List methPrmTypes = intDecl.getMethodParamTypes(method); - print(checkAndGetCplusType(intDecl.getMethodType(method)) + " " + - intDecl.getMethodId(method) + "("); - for (int i = 0; i < methParams.size(); i++) { + /** + * HELPER: writeMethodInputParameters() writes the parameter variables for C++ skeleton + */ + private void writeMethodInputParameters(List methParams, List methPrmTypes, + Set callbackClasses, String methodId) { - //String paramType = checkAndGetParamClass(methPrmTypes.get(i), true); - String paramType = methPrmTypes.get(i); - String methPrmType = checkAndGetCplusType(paramType); - String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); - print(methParamComplete); - // Check if this is the last element (don't print a comma) - if (i != methParams.size() - 1) { - print(", "); - } + print(methodId + "("); + for (int i = 0; i < methParams.size(); i++) { + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (callbackClasses.contains(paramType)) + print("stub" + i); + else if (isEnumClass(getGenericType(paramType))) // Check if this is enum type + print("paramEnum" + i); + else if (isStructClass(getGenericType(paramType))) // Struct type + print("paramStruct" + i); + else + print(getSimpleIdentifier(methParams.get(i))); + if (i != methParams.size() - 1) { + print(", "); } - println(") { "); - writeStdMethodBodyCplusStub(intDecl, methParams, methPrmTypes, method); - println("}\n"); } + println(");"); } /** - * HELPER: writeStdMethodBodyCplusStub() writes the standard method body in the stub class + * HELPER: writeMethodHelperReturnCplusSkeleton() writes the return statement part in skeleton */ - private void writeStdMethodBodyCplusStub(InterfaceDecl intDecl, List methParams, - List methPrmTypes, String method) { + private void writeMethodHelperReturnCplusSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, boolean isCallbackMethod, Set callbackType, + String methodId, Set callbackClasses) { - println("int numParam = " + methParams.size() + ";"); - println("int methodId = " + intDecl.getMethodNumId(method) + ";"); + println("rmiComm->getMethodParams(paramCls, numParam, paramObj, localMethodBytes);"); + if (isCallbackMethod) + writeCallbackCplusStubGeneration(methParams, methPrmTypes, callbackType); + checkAndWriteEnumTypeCplusSkeleton(methParams, methPrmTypes); + writeStructMembersInitCplusSkeleton(intDecl, methParams, methPrmTypes, method); + // Check if this is "void" String retType = intDecl.getMethodType(method); - String retTypeC = checkAndGetCplusType(retType); - println("string retType = \"" + checkAndGetCplusArrayType(retTypeC) + "\";"); + // Check if this is "void" + if (retType.equals("void")) { + writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId); + } else { // We do have a return value + if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type + print(checkAndGetCplusType(retType) + " retEnum = "); + else if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type + print(checkAndGetCplusType(retType) + " retStruct = "); + else + print(checkAndGetCplusType(retType) + " retVal = "); + writeMethodInputParameters(methParams, methPrmTypes, callbackClasses, methodId); + checkAndWriteEnumRetTypeCplusSkeleton(retType); + if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type + writeStructReturnCplusSkeleton(getSimpleArrayType(getGenericType(retType)), retType); + if (isEnumClass(getSimpleArrayType(getGenericType(retType)))) // Enum type + println("void* retObj = &retEnumInt;"); + else + if (!isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type + println("void* retObj = &retVal;"); + String retTypeC = checkAndGetCplusType(retType); + if (isStructClass(getSimpleArrayType(getGenericType(retType)))) // Struct type + println("rmiComm->sendReturnObj(retObj, retCls, numRetObj, localMethodBytes);"); + else + println("rmiComm->sendReturnObj(retObj, \"" + checkAndGetCplusRetClsType(getEnumType(retType)) + "\", localMethodBytes);"); + } + } + + + /** + * HELPER: writeStdMethodHelperBodyCplusSkeleton() writes the standard method body helper in the skeleton class + */ + private void writeStdMethodHelperBodyCplusSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, String methodId, Set callbackClasses) { + // Generate array of parameter types + boolean isCallbackMethod = false; + //String callbackType = null; + Set callbackType = new HashSet(); print("string paramCls[] = { "); for (int i = 0; i < methParams.size(); i++) { - String paramTypeC = checkAndGetCplusType(methPrmTypes.get(i)); - String paramType = checkAndGetCplusArrayType(paramTypeC, methParams.get(i)); - print("\"" + paramType + "\""); - // Check if this is the last element (don't print a comma) + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (callbackClasses.contains(paramType)) { + isCallbackMethod = true; + //callbackType = paramType; + callbackType.add(paramType); + print("\"int*\""); + } else { // Generate normal classes if it's not a callback object + String paramTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i)); + print("\"" + paramTypeC + "\""); + } if (i != methParams.size() - 1) { print(", "); } } println(" };"); + println("int numParam = " + methParams.size() + ";"); + if (isCallbackMethod) + writeCallbackCplusNumStubs(methParams, methPrmTypes, callbackType); + // Generate parameters + for (int i = 0; i < methParams.size(); i++) { + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (!callbackClasses.contains(paramType)) { + String methParamType = methPrmTypes.get(i); + if (isEnumClass(getSimpleArrayType(getGenericType(methParamType)))) { + // Check if this is enum type + println("vector paramEnumInt" + i + ";"); + } else { + String methPrmType = checkAndGetCplusType(methParamType); + String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); + println(methParamComplete + ";"); + } + } + } // Generate array of parameter objects print("void* paramObj[] = { "); for (int i = 0; i < methParams.size(); i++) { - print("&" + checkAndGetCplusType(getSimpleIdentifier(methParams.get(i)))); - // Check if this is the last element (don't print a comma) + String paramType = returnGenericCallbackType(methPrmTypes.get(i)); + if (callbackClasses.contains(paramType)) + print("&numStubIdArray" + i); + else if (isEnumClass(getGenericType(paramType))) // Check if this is enum type + print("¶mEnumInt" + i); + else + print("&" + getSimpleIdentifier(methParams.get(i))); if (i != methParams.size() - 1) { print(", "); } } println(" };"); - // Check if this is "void" - if (retType.equals("void")) { - println("void* retObj = NULL;"); - println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);"); - } else { // We do have a return value - if (getParamCategory(retType) == ParamCategory.NONPRIMITIVES) - println(checkAndGetCplusType(retType) + " retVal;"); - else - println(checkAndGetCplusType(retType) + " retVal = " + generateCplusInitializer(retType) + ";"); - println("void* retObj = &retVal;"); - println("rmiCall->remoteCall(objectId, methodId, retType, paramCls, paramObj, numParam, retObj);"); - println("return retVal;"); - } - } - - - /** - * HELPER: writePropertiesCplusStub() writes the properties of the stub class - */ - private void writePropertiesCplusStub(String intface, String newIntface) { - - println("IoTRMICall *rmiCall;"); - //println("IoTRMIObject\t\t\t*rmiObj;"); - println("string address;"); - println("vector ports;\n"); - // Get the object Id - Integer objId = mapIntfaceObjId.get(intface); - println("const static int objectId = " + objId + ";"); - mapNewIntfaceObjId.put(newIntface, objId); - mapIntfaceObjId.put(intface, objId++); - println("\n"); + // Write the return value part + writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, + callbackType, methodId, callbackClasses); } /** - * HELPER: writeConstructorCplusStub() writes the constructor of the stub class - */ - private void writeConstructorCplusStub(String newStubClass) { - - println(newStubClass + - "(int _port, const char* _address, int _rev, bool* _bResult, vector _ports) {"); - println("address = _address;"); - println("ports = _ports;"); - println("rmiCall = new IoTRMICall(_port, _address, _rev, _bResult);"); - println("}\n"); - } - - - /** - * HELPER: writeDeconstructorCplusStub() writes the deconstructor of the stub class - */ - private void writeDeconstructorCplusStub(String newStubClass) { - - println("~" + newStubClass + "() {"); - println("if (rmiCall != NULL) {"); - println("delete rmiCall;"); - println("rmiCall = NULL;"); - println("}"); - println("}"); - println(""); - // Check if this is callback!!! and print "delete rmiObj and vecCBObj" - } - - - /** - * generateCPlusStubClasses() generate stubs based on the methods list in C++ + * HELPER: writeStructMembersCplusSkeleton() writes member parameters of struct */ - public void generateCPlusStubClasses() throws IOException { - - // Create a new directory - String path = createDirectories(dir, subdir); - for (String intface : mapIntfacePTH.keySet()) { - - Map> mapNewIntMethods = mapInt2NewInts.get(intface); - for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { - // Open a new file to write into - String newIntface = intMeth.getKey(); - String newStubClass = newIntface + "_Stub"; - FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp"); - pw = new PrintWriter(new BufferedWriter(fw)); - // Write file headers - println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__"); - println("#define _" + newStubClass.toUpperCase() + "_HPP__"); - println("#include "); - println("#include \"" + newIntface + ".hpp\""); println(""); - println("using namespace std;"); println(""); - println("class " + newStubClass + " : public " + newIntface); println("{"); - println("private:\n"); - writePropertiesCplusStub(intface, newIntface); - println("public:\n"); - // Add default constructor and destructor - println(newStubClass + "() { }"); println(""); - writeConstructorCplusStub(newStubClass); - writeDeconstructorCplusStub(newStubClass); - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - // Write methods - writeMethodCplusStub(intMeth.getValue(), intDecl); - print("}"); println(";"); - println("#endif"); - pw.close(); - System.out.println("IoTCompiler: Generated stub class " + newIntface + ".hpp..."); + private void writeStructMembersCplusSkeleton(String simpleType, String paramType, + String param, String method, InterfaceDecl intDecl, int iVar) { + + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + int methodNumId = intDecl.getMethodNumId(method); + String counter = "struct" + methodNumId + "Size" + iVar; + // Set up variables + if (isArrayOrList(paramType, param)) { // An array or list + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusType(memTypes.get(i)); + String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i)); + println(getSimpleType(getEnumType(prmType)) + " param" + iVar + i + "[" + counter + "];"); + } + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusType(memTypes.get(i)); + String prmType = checkAndGetCplusArrayType(prmTypeC, members.get(i)); + println(getSimpleType(getEnumType(prmType)) + " param" + iVar + i + ";"); + } + } + if (isArrayOrList(paramType, param)) { // An array or list + println("for(int i = 0; i < " + counter + "; i++) {"); + } + if (isArrayOrList(paramType, param)) { // An array or list + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("paramCls[pos] = \"" + prmTypeC + "\";"); + println("paramObj[pos++] = ¶m" + iVar + i + "[i];"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("paramCls[pos] = \"" + prmTypeC + "\";"); + println("paramObj[pos++] = ¶m" + iVar + i + ";"); } } } /** - * HELPER: writePropertiesCplusCallbackStub() writes the properties of the stub class + * HELPER: writeStructMembersInitCplusSkeleton() writes member parameters initialization of struct */ - private void writePropertiesCplusCallbackStub(String intface, String newIntface) { + private void writeStructMembersInitCplusSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method) { - println("IoTRMICall *rmiCall;"); - // Get the object Id - println("static int objectId;"); - println("\n"); + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + String counter = "struct" + methodNumId + "Size" + i; + // Declaration + if (isArrayOrList(paramType, param)) { // An array or list + println("vector<" + simpleType + "> paramStruct" + i + "(" + counter + ");"); + } else + println(simpleType + " paramStruct" + i + ";"); + // Initialize members + StructDecl structDecl = getStructDecl(simpleType); + List members = structDecl.getMembers(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + if (isArrayOrList(paramType, param)) { // An array or list + println("for(int i = 0; i < " + counter + "; i++) {"); + for (int j = 0; j < members.size(); j++) { + print("paramStruct" + i + "[i]." + getSimpleIdentifier(members.get(j))); + println(" = param" + i + j + "[i];"); + } + println("}"); + } else { // Just one struct element + for (int j = 0; j < members.size(); j++) { + print("paramStruct" + i + "." + getSimpleIdentifier(members.get(j))); + println(" = param" + i + j + ";"); + } + } + } + } } /** - * HELPER: writeConstructorCplusCallbackStub() writes the constructor of the stub class + * HELPER: writeStructReturnCplusSkeleton() writes parameters of struct for return statement */ - private void writeConstructorCplusCallbackStub(String newStubClass) { + private void writeStructReturnCplusSkeleton(String simpleType, String retType) { + + // Minimum retLen is 1 if this is a single struct object + if (isArrayOrList(retType, retType)) + println("int retLen = retStruct.size();"); + else // Just single struct object + println("int retLen = 1;"); + println("void* retLenObj = &retLen;"); + println("rmiComm->sendReturnObj(retLenObj, \"int\", localMethodBytes);"); + int numMem = getNumOfMembers(simpleType); + println("int numRetObj = " + numMem + "*retLen;"); + println("string retCls[numRetObj];"); + println("void* retObj[numRetObj];"); + println("int retPos = 0;"); + // Get the struct declaration for this struct and generate initialization code + StructDecl structDecl = getStructDecl(simpleType); + List memTypes = structDecl.getMemberTypes(simpleType); + List members = structDecl.getMembers(simpleType); + if (isArrayOrList(retType, retType)) { // An array or list + println("for(int i = 0; i < retLen; i++) {"); + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("retCls[retPos] = \"" + prmTypeC + "\";"); + print("retObj[retPos++] = &retStruct[i]."); + print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i)); + println(";"); + } + println("}"); + } else { // Just one struct element + for (int i = 0; i < members.size(); i++) { + String prmTypeC = checkAndGetCplusArgClsType(memTypes.get(i), members.get(i)); + println("retCls[retPos] = \"" + prmTypeC + "\";"); + print("retObj[retPos++] = &retStruct."); + print(getEnumParam(memTypes.get(i), getSimpleIdentifier(members.get(i)), i)); + println(";"); + } + } - println(newStubClass + "(IoTRMICall* _rmiCall, int _objectId) {"); - println("objectId = _objectId;"); - println("rmiCall = _rmiCall;"); - println("}\n"); } /** - * generateCPlusCallbackStubClasses() generate callback stubs based on the methods list in C++ + * HELPER: writeMethodHelperStructCplusSkeleton() writes the struct in skeleton */ - public void generateCPlusCallbackStubClasses() throws IOException { - - // Create a new directory - String path = createDirectories(dir, subdir); - for (String intface : mapIntfacePTH.keySet()) { + private void writeMethodHelperStructCplusSkeleton(InterfaceDecl intDecl, List methParams, + List methPrmTypes, String method, String methodId, Set callbackClasses) { - Map> mapNewIntMethods = mapInt2NewInts.get(intface); - for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { - // Open a new file to write into - String newIntface = intMeth.getKey(); - String newStubClass = newIntface + "_CallbackStub"; - FileWriter fw = new FileWriter(path + "/" + newStubClass + ".hpp"); - pw = new PrintWriter(new BufferedWriter(fw)); - // Write file headers - println("#ifndef _" + newStubClass.toUpperCase() + "_HPP__"); - println("#define _" + newStubClass.toUpperCase() + "_HPP__"); - println("#include "); - println("#include \"" + newIntface + ".hpp\""); println(""); - println("using namespace std;"); println(""); - println("class " + newStubClass + " : public " + newIntface); println("{"); - println("private:\n"); - writePropertiesCplusCallbackStub(intface, newIntface); - println("public:\n"); - // Add default constructor and destructor - println(newStubClass + "() { }"); println(""); - writeConstructorCplusCallbackStub(newStubClass); - writeDeconstructorCplusStub(newStubClass); - DeclarationHandler decHandler = mapIntDeclHand.get(intface); - InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); - // Write methods - writeMethodCplusStub(intMeth.getValue(), intDecl); - print("}"); println(";"); - println("#endif"); - pw.close(); - System.out.println("IoTCompiler: Generated callback stub class " + newIntface + ".hpp..."); + // Generate array of parameter objects + boolean isCallbackMethod = false; + Set callbackType = new HashSet(); + print("int numParam = "); + writeLengthStructParamClassSkeleton(methParams, methPrmTypes, method, intDecl); + println(";"); + println("string paramCls[numParam];"); + println("void* paramObj[numParam];"); + println("int pos = 0;"); + // Iterate again over the parameters + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + writeStructMembersCplusSkeleton(simpleType, paramType, param, method, intDecl, i); + } else { + String prmType = returnGenericCallbackType(methPrmTypes.get(i)); + if (callbackClasses.contains(prmType)) { + isCallbackMethod = true; + //callbackType = prmType; + callbackType.add(prmType); + //println("int numStubs" + i + " = 0;"); + println("vector numStubIdArray" + i + ";"); + println("paramCls[pos] = \"int*\";"); + println("paramObj[pos++] = &numStubIdArray" + i + ";"); + } else { // Generate normal classes if it's not a callback object + String paramTypeC = checkAndGetCplusType(methPrmTypes.get(i)); + if (isEnumClass(getGenericType(paramTypeC))) { // Check if this is enum type + println("vector paramEnumInt" + i + ";"); + } else { + String methParamComplete = checkAndGetCplusArray(paramTypeC, methParams.get(i)); + println(methParamComplete + ";"); + } + String prmTypeC = checkAndGetCplusArgClsType(methPrmTypes.get(i), methParams.get(i)); + println("paramCls[pos] = \"" + prmTypeC + "\";"); + if (isEnumClass(getGenericType(paramType))) // Check if this is enum type + println("paramObj[pos++] = ¶mEnumInt" + i + ";"); + else + println("paramObj[pos++] = &" + getSimpleIdentifier(methParams.get(i)) + ";"); + } } } + // Write the return value part + writeMethodHelperReturnCplusSkeleton(intDecl, methParams, methPrmTypes, method, isCallbackMethod, + callbackType, methodId, callbackClasses); } /** - * HELPER: writePropertiesCplusSkeleton() writes the properties of the skeleton class + * HELPER: writeMethodHelperDeclCplusSkeleton() writes the method helper declarations of the skeleton class */ - private void writePropertiesCplusSkeleton(String intface) { + private void writeMethodHelperDeclCplusSkeleton(Collection methods, InterfaceDecl intDecl, String newSkelClass) { - println(intface + " *mainObj;"); - //println("private int ports;"); - //println("private IoTRMICall rmiCall;"); - println("IoTRMIObject *rmiObj;\n"); - // Keep track of object Ids of all stubs registered to this interface - Map> mapNewIntMethods = mapInt2NewInts.get(intface); - for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { - String newIntface = intMeth.getKey(); - int newObjectId = mapNewIntfaceObjId.get(newIntface); -// println("const static int object" + newObjectId + "Id = " + -// newObjectId + ";\t//" + newIntface); + // Use this set to handle two same methodIds + Set uniqueMethodIds = new HashSet(); + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently + String methodId = intDecl.getMethodId(method); + print("void ___"); + String helperMethod = methodId; + if (uniqueMethodIds.contains(methodId)) + helperMethod = helperMethod + intDecl.getMethodNumId(method); + else + uniqueMethodIds.add(methodId); + String retType = intDecl.getMethodType(method); + print(helperMethod + "("); + boolean begin = true; + for (int i = 0; i < methParams.size(); i++) { // Print size variables + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + if (!begin) // Generate comma for not the beginning variable + print(", "); + else + begin = false; + int methodNumId = intDecl.getMethodNumId(method); + print("int struct" + methodNumId + "Size" + i); + } + } + println(", " + newSkelClass + "* skel);"); + } else { + String methodId = intDecl.getMethodId(method); + print("void ___"); + String helperMethod = methodId; + if (uniqueMethodIds.contains(methodId)) + helperMethod = helperMethod + intDecl.getMethodNumId(method); + else + uniqueMethodIds.add(methodId); + // Check if this is "void" + String retType = intDecl.getMethodType(method); + println(helperMethod + "(" + newSkelClass + "* skel);"); + } } - // TODO: CALLBACKS! - // TODO: code the set of allowed functions here - println("\n"); + // Write method helper for structs + writeMethodHelperStructDeclSetupCplusSkeleton(methods, intDecl, newSkelClass); } /** - * HELPER: writeConstructorCplusSkeleton() writes the constructor of the skeleton class + * HELPER: writeMethodHelperStructDeclSetupCplusSkeleton() writes the struct method helper declaration in skeleton class */ - private void writeConstructorCplusSkeleton(String newSkelClass, String intface) { - - println(newSkelClass + "(" + intface + " *_mainObj, int _port) {"); - println("bool _bResult = false;"); - println("mainObj = _mainObj;"); - println("rmiObj = new IoTRMIObject(_port, &_bResult);"); - //println("set0Allowed = Arrays.asList(object0Permission);"); - //println("___waitRequestInvokeMethod();"); - println("}\n"); - } + private void writeMethodHelperStructDeclSetupCplusSkeleton(Collection methods, + InterfaceDecl intDecl, String newSkelClass) { + // Use this set to handle two same methodIds + for (String method : methods) { - /** - * HELPER: writeDeconstructorCplusSkeleton() writes the deconstructor of the skeleton class - */ - private void writeDeconstructorCplusSkeleton(String newSkelClass) { - - println("~" + newSkelClass + "() {"); - println("if (rmiObj != NULL) {"); - println("delete rmiObj;"); - println("rmiObj = NULL;"); - println("}"); - println("}"); - println(""); - // Check if this is callback!!! and print "delete rmiObj and vecCBObj" + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("int ___"); + String helperMethod = methodNumId + "struct" + i; + println(helperMethod + "(" + newSkelClass + "* skel);"); + } + } + } } /** - * HELPER: writeStdMethodBodyCplusSkeleton() writes the standard method body in the skeleton class + * HELPER: writeMethodBytesCopy() writes the methodBytes copy part in C++ skeleton */ - private void writeStdMethodBodyCplusSkeleton(List methParams, String methodId, String methodType) { - - if (methodType.equals("void")) - print("mainObj->" + methodId + "("); - else - print("return mainObj->" + methodId + "("); - for (int i = 0; i < methParams.size(); i++) { + private void writeMethodBytesCopy() { - print(getSimpleIdentifier(methParams.get(i))); - // Check if this is the last element (don't print a comma) - if (i != methParams.size() - 1) { - print(", "); - } - } - println(");"); + println("char* localMethodBytes = new char[methodLen];"); + println("memcpy(localMethodBytes, skel->methodBytes, methodLen);"); + println("didGetMethodBytes.exchange(true);"); } /** - * HELPER: writeMethodCplusSkeleton() writes the method of the skeleton class + * HELPER: writeMethodHelperCplusSkeleton() writes the method helper of the skeleton class */ - private void writeMethodCplusSkeleton(Collection methods, InterfaceDecl intDecl) { + private void writeMethodHelperCplusSkeleton(Collection methods, InterfaceDecl intDecl, + Set callbackClasses, String newSkelClass) { + // Use this set to handle two same methodIds + Set uniqueMethodIds = new HashSet(); for (String method : methods) { List methParams = intDecl.getMethodParams(method); List methPrmTypes = intDecl.getMethodParamTypes(method); - String methodId = intDecl.getMethodId(method); - String methodType = checkAndGetCplusType(intDecl.getMethodType(method)); - print(methodType + " " + methodId + "("); - for (int i = 0; i < methParams.size(); i++) { - - String paramType = checkAndGetParamClass(methPrmTypes.get(i), true); - String methPrmType = checkAndGetCplusType(paramType); - String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); - print(methParamComplete); - // Check if this is the last element (don't print a comma) - if (i != methParams.size() - 1) { - print(", "); + if (isStructPresent(methParams, methPrmTypes)) { // Treat struct differently + String methodId = intDecl.getMethodId(method); + print("void " + newSkelClass + "::___"); + String helperMethod = methodId; + if (uniqueMethodIds.contains(methodId)) + helperMethod = helperMethod + intDecl.getMethodNumId(method); + else + uniqueMethodIds.add(methodId); + String retType = intDecl.getMethodType(method); + print(helperMethod + "("); + boolean begin = true; + for (int i = 0; i < methParams.size(); i++) { // Print size variables + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + if (!begin) // Generate comma for not the beginning variable + print(", "); + else + begin = false; + int methodNumId = intDecl.getMethodNumId(method); + print("int struct" + methodNumId + "Size" + i); + } } + println(", " + newSkelClass + "* skel) {"); + writeMethodBytesCopy(); + writeMethodHelperStructCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses); + println("delete[] localMethodBytes;"); + println("}\n"); + } else { + String methodId = intDecl.getMethodId(method); + print("void " + newSkelClass + "::___"); + String helperMethod = methodId; + if (uniqueMethodIds.contains(methodId)) + helperMethod = helperMethod + intDecl.getMethodNumId(method); + else + uniqueMethodIds.add(methodId); + // Check if this is "void" + String retType = intDecl.getMethodType(method); + println(helperMethod + "(" + newSkelClass + "* skel) {"); + writeMethodBytesCopy(); + // Now, write the helper body of skeleton! + writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId, callbackClasses); + println("delete[] localMethodBytes;"); + println("}\n"); } - println(") {"); - // Now, write the body of skeleton! - writeStdMethodBodyCplusSkeleton(methParams, methodId, intDecl.getMethodType(method)); - println("}\n"); } + // Write method helper for structs + writeMethodHelperStructSetupCplusSkeleton(methods, intDecl, newSkelClass); } /** - * HELPER: writeStdMethodHelperBodyCplusSkeleton() writes the standard method body helper in the skeleton class + * HELPER: writeMethodHelperStructSetupCplusSkeleton() writes the method helper of struct in skeleton class */ - private void writeStdMethodHelperBodyCplusSkeleton(InterfaceDecl intDecl, List methParams, - List methPrmTypes, String method, String methodId) { + private void writeMethodHelperStructSetupCplusSkeleton(Collection methods, + InterfaceDecl intDecl, String newSkelClass) { - // Generate array of parameter types - print("string paramCls[] = { "); - for (int i = 0; i < methParams.size(); i++) { - String paramTypeC = checkAndGetCplusType(methPrmTypes.get(i)); - String paramType = checkAndGetCplusArrayType(paramTypeC, methParams.get(i)); - print("\"" + paramType + "\""); - if (i != methParams.size() - 1) { - print(", "); - } - } - println(" };"); - println("int numParam = " + methParams.size() + ";"); - // Generate parameters - for (int i = 0; i < methParams.size(); i++) { - String methPrmType = checkAndGetCplusType(methPrmTypes.get(i)); - String methParamComplete = checkAndGetCplusArray(methPrmType, methParams.get(i)); - println(methParamComplete + ";"); - } - // Generate array of parameter objects - print("void* paramObj[] = { "); - for (int i = 0; i < methParams.size(); i++) { - print("&" + getSimpleIdentifier(methParams.get(i))); - if (i != methParams.size() - 1) { - print(", "); - } - } - println(" };"); - println("rmiObj->getMethodParams(paramCls, numParam, paramObj);"); - String retType = intDecl.getMethodType(method); - // Check if this is "void" - if (retType.equals("void")) { - print(methodId + "("); - for (int i = 0; i < methParams.size(); i++) { - print(getSimpleIdentifier(methParams.get(i))); - if (i != methParams.size() - 1) { - print(", "); - } - } - println(");"); - } else { // We do have a return value - print(checkAndGetCplusType(retType) + " retVal = " + methodId + "("); + // Use this set to handle two same methodIds + for (String method : methods) { + + List methParams = intDecl.getMethodParams(method); + List methPrmTypes = intDecl.getMethodParamTypes(method); + // Check for params with structs for (int i = 0; i < methParams.size(); i++) { - print(getSimpleIdentifier(methParams.get(i))); - if (i != methParams.size() - 1) { - print(", "); + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("int " + newSkelClass + "::___"); + String helperMethod = methodNumId + "struct" + i; + println(helperMethod + "(" + newSkelClass + "* skel) {"); + // Now, write the helper body of skeleton! + writeMethodBytesCopy(); + println("string paramCls[] = { \"int\" };"); + println("int numParam = 1;"); + println("int param0 = 0;"); + println("void* paramObj[] = { ¶m0 };"); + println("rmiComm->getMethodParams(paramCls, numParam, paramObj, localMethodBytes);"); + println("return param0;"); + println("delete[] localMethodBytes;"); + println("}\n"); } } - println(");"); - println("void* retObj = &retVal;"); - String retTypeC = checkAndGetCplusType(retType); - println("rmiObj->sendReturnObj(retObj, \"" + checkAndGetCplusArrayType(retTypeC) + "\");"); } } /** - * HELPER: writeMethodHelperCplusSkeleton() writes the method helper of the skeleton class + * HELPER: writeMethodHelperStructSetupCplusCallbackSkeleton() writes the method helper of struct in skeleton class */ - private void writeMethodHelperCplusSkeleton(Collection methods, InterfaceDecl intDecl) { + private void writeMethodHelperStructSetupCplusCallbackSkeleton(Collection methods, + InterfaceDecl intDecl) { // Use this set to handle two same methodIds - Set uniqueMethodIds = new HashSet(); for (String method : methods) { List methParams = intDecl.getMethodParams(method); List methPrmTypes = intDecl.getMethodParamTypes(method); - String methodId = intDecl.getMethodId(method); - print("void ___"); - String helperMethod = methodId; - if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + intDecl.getMethodNumId(method); - else - uniqueMethodIds.add(methodId); - // Check if this is "void" - String retType = intDecl.getMethodType(method); - println(helperMethod + "() {"); - // Now, write the helper body of skeleton! - writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId); - println("}\n"); + // Check for params with structs + for (int i = 0; i < methParams.size(); i++) { + String paramType = methPrmTypes.get(i); + String param = methParams.get(i); + String simpleType = getGenericType(paramType); + if (isStructClass(simpleType)) { + int methodNumId = intDecl.getMethodNumId(method); + print("int ___"); + String helperMethod = methodNumId + "struct" + i; + println(helperMethod + "(IoTRMIObject* rmiObj) {"); + // Now, write the helper body of skeleton! + println("string paramCls[] = { \"int\" };"); + println("int numParam = 1;"); + println("int param0 = 0;"); + println("void* paramObj[] = { ¶m0 };"); + println("rmiComm->getMethodParams(paramCls, numParam, paramObj, localMethodBytes);"); + println("return param0;"); + println("}\n"); + } + } + } + } + + + /** + * HELPER: writeCplusMethodPermission() writes permission checks in skeleton + */ + private void writeCplusMethodPermission(String intface) { + + // Get all the different stubs + Map> mapNewIntMethods = mapInt2NewInts.get(intface); + for (Map.Entry> intMeth : mapNewIntMethods.entrySet()) { + String newIntface = intMeth.getKey(); + int newObjectId = getNewIntfaceObjectId(newIntface); + println("if (_objectId == objectId) {"); + println("if (set" + newObjectId + "Allowed.find(methodId) == set" + newObjectId + "Allowed.end()) {"); + println("cerr << \"Object with object Id: \" << _objectId << \" is not allowed to access method: \" << methodId << endl;"); + println("return;"); + println("}"); + println("}"); + println("else {"); + println("continue;"); + println("}"); } } @@ -1850,33 +4164,50 @@ public class IoTCompiler { /** * HELPER: writeCplusWaitRequestInvokeMethod() writes the main loop of the skeleton class */ - private void writeCplusWaitRequestInvokeMethod(Collection methods, InterfaceDecl intDecl) { + private void writeCplusWaitRequestInvokeMethod(Collection methods, InterfaceDecl intDecl, + boolean callbackExist, String intface, String newSkelClass) { // Use this set to handle two same methodIds Set uniqueMethodIds = new HashSet(); - println("void ___waitRequestInvokeMethod() {"); + println("void " + newSkelClass + "::___waitRequestInvokeMethod(" + newSkelClass + "* skel) {"); // Write variables here if we have callbacks or enums or structs + writeCountVarStructSkeleton(methods, intDecl); + println("skel->didAlreadyInitWaitInvoke = true;"); println("while (true) {"); - println("rmiObj->getMethodBytes();"); - println("int _objectId = rmiObj->getObjectId();"); - println("int methodId = rmiObj->getMethodId();"); - // TODO: code the permission check here! + println("if (!methodReceived) {"); + println("continue;"); + println("}"); + println("skel->methodBytes = skel->rmiComm->getMethodBytes();"); + println("skel->methodLen = skel->rmiComm->getMethodLength();"); + println("methodReceived = false;"); + println("int _objectId = skel->rmiComm->getObjectId(skel->methodBytes);"); + println("int methodId = skel->rmiComm->getMethodId(skel->methodBytes);"); + // Generate permission check + writeCplusMethodPermission(intface); println("switch (methodId) {"); // Print methods and method Ids for (String method : methods) { String methodId = intDecl.getMethodId(method); int methodNumId = intDecl.getMethodNumId(method); - print("case " + methodNumId + ": ___"); + println("case " + methodNumId + ": {"); + print("thread th" + methodNumId + " (&" + newSkelClass + "::___"); String helperMethod = methodId; if (uniqueMethodIds.contains(methodId)) helperMethod = helperMethod + methodNumId; else uniqueMethodIds.add(methodId); - println(helperMethod + "(); break;"); + print(helperMethod + ", std::ref(skel), "); + boolean structExists = writeInputCountVarStructCplusSkeleton(method, intDecl); + if (structExists) + print(", "); + println("skel);"); + println("th" + methodNumId + ".detach(); break;"); + println("}"); } + writeMethodCallStructCplusSkeleton(methods, intDecl); println("default: "); println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;"); - println("throw exception();"); + println("return;"); println("}"); println("}"); println("}\n"); @@ -1884,9 +4215,9 @@ public class IoTCompiler { /** - * generateCplusSkeletonClass() generate skeletons based on the methods list in C++ + * generateCplusSkeletonClassHpp() generate skeletons based on the methods list in C++ (.hpp file) */ - public void generateCplusSkeletonClass() throws IOException { + public void generateCplusSkeletonClassHpp() throws IOException { // Create a new directory String path = createDirectories(dir, subdir); @@ -1904,167 +4235,124 @@ public class IoTCompiler { DeclarationHandler decHandler = mapIntDeclHand.get(intface); InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); List methods = intDecl.getMethods(); - Set includeClasses = getIncludeClasses(methods, intDecl); List stdIncludeClasses = getStandardCplusIncludeClasses(); - List allIncludeClasses = getAllImportClasses(stdIncludeClasses, includeClasses); - printIncludeStatements(allIncludeClasses); println(""); + printIncludeStatements(stdIncludeClasses); println(""); println("using namespace std;\n"); + // Find out if there are callback objects + Set callbackClasses = getCallbackClasses(methods, intDecl); + boolean callbackExist = !callbackClasses.isEmpty(); // Write class header println("class " + newSkelClass + " : public " + intface); println("{"); println("private:\n"); // Write properties - writePropertiesCplusSkeleton(intface); + writePropertiesCplusSkeleton(intface, callbackExist, callbackClasses); println("public:\n"); - // Write constructor - writeConstructorCplusSkeleton(newSkelClass, intface); + // Write constructors + println(newSkelClass + "();"); + println(newSkelClass + "(" + intface + "*_mainObj, int _portSend, int _portRecv);"); + println(newSkelClass + "(" + intface + "*_mainObj, IoTRMIComm *rmiComm, int _objectId);"); // Write deconstructor - writeDeconstructorCplusSkeleton(newSkelClass); - // Write methods - writeMethodCplusSkeleton(methods, intDecl); - // Write method helper - writeMethodHelperCplusSkeleton(methods, intDecl); - // Write waitRequestInvokeMethod() - main loop - writeCplusWaitRequestInvokeMethod(methods, intDecl); + println("~" + newSkelClass + "();"); + // Write method declarations + println("bool didInitWaitInvoke();"); + writeMethodDeclCplusSkeleton(methods, intDecl, callbackClasses); + // Write method helper declarations + writeMethodHelperDeclCplusSkeleton(methods, intDecl, newSkelClass); + // Write waitRequestInvokeMethod() declaration - main loop + println("void ___waitRequestInvokeMethod(" + newSkelClass + "* skel);"); println("};"); + writePermissionInitializationCplus(intface, newSkelClass, intDecl); println("#endif"); pw.close(); System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".hpp..."); } } - - /** - * HELPER: writePropertiesCplusCallbackSkeleton() writes the properties of the callback skeleton class - */ - private void writePropertiesCplusCallbackSkeleton(String intface) { - - println(intface + " *mainObj;"); - //println("IoTRMIObject *rmiObj;\n"); - // Keep track of object Ids of all stubs registered to this interface - println("static int objectId;"); - println("\n"); - } - - /** - * HELPER: writeConstructorCplusCallbackSkeleton() writes the constructor of the skeleton class + * HELPER: writeReturnDidAlreadyInitWaitInvoke() writes the function to return didAlreadyInitWaitInvoke */ - private void writeConstructorCplusCallbackSkeleton(String newSkelClass, String intface) { + private void writeReturnDidAlreadyInitWaitInvoke(String newSkelClass) { - println(newSkelClass + "(" + intface + " *_mainObj, int _objectId) {"); - println("mainObj = _mainObj;"); - println("objectId = _objectId;"); + println("bool " + newSkelClass + "::didInitWaitInvoke() {"); + println("return didAlreadyInitWaitInvoke;"); println("}\n"); } /** - * HELPER: writeMethodHelperCplusCallbackSkeleton() writes the method helper of the callback skeleton class - */ - private void writeMethodHelperCplusCallbackSkeleton(Collection methods, InterfaceDecl intDecl) { - - // Use this set to handle two same methodIds - Set uniqueMethodIds = new HashSet(); - for (String method : methods) { - - List methParams = intDecl.getMethodParams(method); - List methPrmTypes = intDecl.getMethodParamTypes(method); - String methodId = intDecl.getMethodId(method); - print("void ___"); - String helperMethod = methodId; - if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + intDecl.getMethodNumId(method); - else - uniqueMethodIds.add(methodId); - // Check if this is "void" - String retType = intDecl.getMethodType(method); - println(helperMethod + "(IoTRMIObject* rmiObj) {"); - // Now, write the helper body of skeleton! - writeStdMethodHelperBodyCplusSkeleton(intDecl, methParams, methPrmTypes, method, methodId); - println("}\n"); - } - } - - - /** - * HELPER: writeCplusCallbackWaitRequestInvokeMethod() writes the main loop of the skeleton class + * writeSkelExternalCFunctions() generate external functions for .so file */ - private void writeCplusCallbackWaitRequestInvokeMethod(Collection methods, InterfaceDecl intDecl) { + public void writeSkelExternalCFunctions(String newSkelClass, String intface) throws IOException { - // Use this set to handle two same methodIds - Set uniqueMethodIds = new HashSet(); - println("void invokeMethod(IoTRMIObject* rmiObj) {"); - // Write variables here if we have callbacks or enums or structs - println("int methodId = rmiObj->getMethodId();"); - // TODO: code the permission check here! - println("switch (methodId) {"); - // Print methods and method Ids - for (String method : methods) { - String methodId = intDecl.getMethodId(method); - int methodNumId = intDecl.getMethodNumId(method); - print("case " + methodNumId + ": ___"); - String helperMethod = methodId; - if (uniqueMethodIds.contains(methodId)) - helperMethod = helperMethod + methodNumId; - else - uniqueMethodIds.add(methodId); - println(helperMethod + "(rmiObj); break;"); - } - println("default: "); - println("cerr << \"Method Id \" << methodId << \" not recognized!\" << endl;"); - println("throw exception();"); - println("}"); + println("extern \"C\" void* create" + newSkelClass + "(void** params) {"); + println("// Args: *_mainObj, int _portSend, int _portRecv"); + println("return new " + newSkelClass + "((" + intface + "*) params[0], *((int*) params[1]), *((int*) params[2]));"); + println("}\n"); + println("extern \"C\" void destroy" + newSkelClass + "(void* t) {"); + println(newSkelClass + "* obj = (" + newSkelClass + "*) t;"); + println("delete obj;"); + println("}\n"); + println("extern \"C\" void init" + newSkelClass + "(void* t) {"); + //println(newSkelClass + "* obj = (" + newSkelClass + "*) t;"); + //println("obj->init();"); + //println("while(true);"); println("}\n"); } - /** - * generateCplusCallbackSkeletonClass() generate callback skeletons based on the methods list in C++ + * generateCplusSkeletonClassCpp() generate skeletons based on the methods list in C++ (.cpp file) */ - public void generateCplusCallbackSkeletonClass() throws IOException { + public void generateCplusSkeletonClassCpp() throws IOException { // Create a new directory String path = createDirectories(dir, subdir); for (String intface : mapIntfacePTH.keySet()) { // Open a new file to write into - String newSkelClass = intface + "_CallbackSkeleton"; - FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".hpp"); + String newSkelClass = intface + "_Skeleton"; + FileWriter fw = new FileWriter(path + "/" + newSkelClass + ".cpp"); pw = new PrintWriter(new BufferedWriter(fw)); // Write file headers - println("#ifndef _" + newSkelClass.toUpperCase() + "_HPP__"); - println("#define _" + newSkelClass.toUpperCase() + "_HPP__"); println("#include "); - println("#include \"" + intface + ".hpp\"\n"); + println("#include \"" + newSkelClass + ".hpp\"\n"); // Pass in set of methods and get import classes DeclarationHandler decHandler = mapIntDeclHand.get(intface); InterfaceDecl intDecl = (InterfaceDecl) decHandler.getInterfaceDecl(intface); List methods = intDecl.getMethods(); - Set includeClasses = getIncludeClasses(methods, intDecl); - List stdIncludeClasses = getStandardCplusIncludeClasses(); - List allIncludeClasses = getAllImportClasses(stdIncludeClasses, includeClasses); - printIncludeStatements(allIncludeClasses); println(""); + // Find out if there are callback objects + Set callbackClasses = getCallbackClasses(methods, intDecl); + boolean callbackExist = !callbackClasses.isEmpty(); + for(String str: callbackClasses) { + if (intface.equals(mainClass)) + println("#include \"" + getStubInterface(str) + "_Stub.cpp\"\n"); + else + println("#include \"" + getStubInterface(str) + "_Stub.hpp\"\n"); + } println("using namespace std;\n"); - // Write class header - println("class " + newSkelClass + " : public " + intface); println("{"); - println("private:\n"); - // Write properties - writePropertiesCplusCallbackSkeleton(intface); - println("public:\n"); // Write constructor - writeConstructorCplusCallbackSkeleton(newSkelClass, intface); + writeConstructorCplusSkeleton(newSkelClass, intface, callbackExist, intDecl, methods); + // Write callback constructor + writeCallbackConstructorCplusSkeleton(newSkelClass, intface, callbackExist, intDecl, methods); // Write deconstructor - //writeDeconstructorCplusSkeleton(newSkelClass); + writeDeconstructorCplusSkeleton(newSkelClass, callbackExist, callbackClasses); + // Write didInitWaitInvoke() to return bool + writeReturnDidAlreadyInitWaitInvoke(newSkelClass); // Write methods - writeMethodCplusSkeleton(methods, intDecl); + writeMethodCplusSkeleton(methods, intDecl, newSkelClass); // Write method helper - writeMethodHelperCplusCallbackSkeleton(methods, intDecl); + writeMethodHelperCplusSkeleton(methods, intDecl, callbackClasses, newSkelClass); // Write waitRequestInvokeMethod() - main loop - writeCplusCallbackWaitRequestInvokeMethod(methods, intDecl); - println("};"); - println("#endif"); + writeCplusWaitRequestInvokeMethod(methods, intDecl, callbackExist, intface, newSkelClass); + // Write external functions for .so file + writeSkelExternalCFunctions(newSkelClass, intface); + // TODO: Remove this later + if (intface.equals(mainClass)) { + println("int main() {"); + println("return 0;"); + println("}"); + } pw.close(); - System.out.println("IoTCompiler: Generated callback skeleton class " + newSkelClass + ".hpp..."); + System.out.println("IoTCompiler: Generated skeleton class " + newSkelClass + ".cpp..."); } } @@ -2099,35 +4387,6 @@ public class IoTCompiler { } - /** - * generateReturnStmt() generate return statement based on methType - */ - public String generateReturnStmt(String methType) { - - // Generate dummy returns for now - if (methType.equals("short")|| - methType.equals("int") || - methType.equals("long") || - methType.equals("float")|| - methType.equals("double")) { - - return "1"; - } else if ( methType.equals("String")) { - - return "\"a\""; - } else if ( methType.equals("char") || - methType.equals("byte")) { - - return "\'a\'"; - } else if ( methType.equals("boolean")) { - - return "true"; - } else { - return "null"; - } - } - - /** * setDirectory() sets a new directory for stub files */ @@ -2173,7 +4432,7 @@ public class IoTCompiler { pn = (ParseNode) parse.parse().value; } catch (Exception e) { e.printStackTrace(); - throw new Error("IoTCompiler: ERROR parsing policy file or wrong command line option: " + file); + throw new Error("IoTCompiler: ERROR parsing policy file or wrong command line option: " + file + "\n"); } return pn; @@ -2181,7 +4440,7 @@ public class IoTCompiler { /**================ - * Helper functions + * Basic helper functions **================ */ boolean newline=true; @@ -2204,16 +4463,22 @@ public class IoTCompiler { /** * This function converts Java to C++ type for compilation */ - private String convertType(String jType) { + private String convertType(String type) { - return mapPrimitives.get(jType); + if (mapPrimitives.containsKey(type)) + return mapPrimitives.get(type); + else + return type; } + /** + * A collection of methods with print-to-file functionality + */ private void println(String str) { if (newline) { int tab = tablevel; - if (str.equals("}")) + if (str.contains("}") && !str.contains("{")) tab--; for(int i=0; i for Set, #include for Map + // e.g. #include for Set private String getNonPrimitiveCplusClass(String paramNonPrimitives) { return mapNonPrimitivesCplus.get(paramNonPrimitives); @@ -2321,6 +4607,18 @@ public class IoTCompiler { } + // Generate a set of standard classes for import statements + private List getStandardJavaIntfaceImportClasses() { + + List importClasses = new ArrayList(); + // Add the standard list first + importClasses.add("java.util.List"); + importClasses.add("java.util.ArrayList"); + + return importClasses; + } + + // Generate a set of standard classes for import statements private List getStandardJavaImportClasses() { @@ -2329,8 +4627,14 @@ public class IoTCompiler { importClasses.add("java.io.IOException"); importClasses.add("java.util.List"); importClasses.add("java.util.ArrayList"); - importClasses.add("iotrmi.Java.IoTRMICall"); - importClasses.add("iotrmi.Java.IoTRMIObject"); + importClasses.add("java.util.Arrays"); + importClasses.add("java.util.Map"); + importClasses.add("java.util.HashMap"); + importClasses.add("java.util.concurrent.atomic.AtomicBoolean"); + importClasses.add("iotrmi.Java.IoTRMIComm"); + importClasses.add("iotrmi.Java.IoTRMICommClient"); + importClasses.add("iotrmi.Java.IoTRMICommServer"); + importClasses.add("iotrmi.Java.IoTRMIUtil"); return importClasses; } @@ -2342,25 +4646,28 @@ public class IoTCompiler { List importClasses = new ArrayList(); // Add the standard list first importClasses.add(""); - importClasses.add("\"IoTRMICall.hpp\""); - importClasses.add("\"IoTRMIObject.hpp\""); + importClasses.add(""); + //importClasses.add("\"IoTRMICall.hpp\""); + //importClasses.add("\"IoTRMIObject.hpp\""); + importClasses.add("\"IoTRMIComm.hpp\""); + importClasses.add("\"IoTRMICommClient.hpp\""); + importClasses.add("\"IoTRMICommServer.hpp\""); return importClasses; } - // Generate a set of standard classes for import statements - private List getAllImportClasses(Collection stdImportClasses, Collection importClasses) { + // Combine all classes for import statements + private List getAllLibClasses(Collection stdLibClasses, Collection libClasses) { - List allImportClasses = new ArrayList(stdImportClasses); + List allLibClasses = new ArrayList(stdLibClasses); // Iterate over the list of import classes - for (String str : importClasses) { - if (!stdImportClasses.contains(str)) { - stdImportClasses.add(str); + for (String str : libClasses) { + if (!allLibClasses.contains(str)) { + allLibClasses.add(str); } } - - return allImportClasses; + return allLibClasses; } @@ -2383,8 +4690,148 @@ public class IoTCompiler { } + // Handle and return the correct enum declaration + // In Java, if we declare enum in Camera interface, then it becomes "Camera." + private String getEnumParamDecl(String type, InterfaceDecl intDecl) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(type); + // Take the inner type of generic + if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) + pureType = getTypeOfGeneric(type)[0]; + if (isEnumClass(pureType)) { + String enumType = intDecl.getInterface() + "." + type; + return enumType; + } else + return type; + } + + + // Handle and return the correct type + private String getEnumParam(String type, String param, int i) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(type); + // Take the inner type of generic + if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) + pureType = getTypeOfGeneric(type)[0]; + if (isEnumClass(pureType)) { + String enumParam = "paramEnum" + i; + return enumParam; + } else + return param; + } + + + // Handle and return the correct enum declaration translate into int[] + private String getEnumType(String type) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(type); + // Take the inner type of generic + if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(type); + if (isEnumClass(pureType)) { + String enumType = "int[]"; + return enumType; + } else + return type; + } + + // Handle and return the correct enum declaration translate into int* for C + private String getEnumCplusClsType(String type) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(type); + // Take the inner type of generic + if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(type); + if (isEnumClass(pureType)) { + String enumType = "int*"; + return enumType; + } else + return type; + } + + + // Handle and return the correct struct declaration + private String getStructType(String type) { + + // Strips off array "[]" for return type + String pureType = getSimpleArrayType(type); + // Take the inner type of generic + if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) + pureType = getGenericType(type); + if (isStructClass(pureType)) { + String structType = "int"; + return structType; + } else + return type; + } + + + // Check if this an enum declaration + private boolean isEnumClass(String type) { + + // Just iterate over the set of interfaces + for (String intface : mapIntfacePTH.keySet()) { + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + EnumDecl enumDecl = (EnumDecl) decHandler.getEnumDecl(intface); + Set setEnumDecl = enumDecl.getEnumDeclarations(); + if (setEnumDecl.contains(type)) + return true; + } + return false; + } + + + // Check if this an struct declaration + private boolean isStructClass(String type) { + + // Just iterate over the set of interfaces + for (String intface : mapIntfacePTH.keySet()) { + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); + List listStructDecl = structDecl.getStructTypes(); + if (listStructDecl.contains(type)) + return true; + } + return false; + } + + + // Return a struct declaration + private StructDecl getStructDecl(String type) { + + // Just iterate over the set of interfaces + for (String intface : mapIntfacePTH.keySet()) { + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); + List listStructDecl = structDecl.getStructTypes(); + if (listStructDecl.contains(type)) + return structDecl; + } + return null; + } + + + // Return number of members (-1 if not found) + private int getNumOfMembers(String type) { + + // Just iterate over the set of interfaces + for (String intface : mapIntfacePTH.keySet()) { + DeclarationHandler decHandler = mapIntDeclHand.get(intface); + StructDecl structDecl = (StructDecl) decHandler.getStructDecl(intface); + List listStructDecl = structDecl.getStructTypes(); + if (listStructDecl.contains(type)) + return structDecl.getNumOfMembers(type); + } + return -1; + } + + // Generate a set of classes for include statements - private Set getIncludeClasses(Collection methods, InterfaceDecl intDecl) { + private Set getIncludeClasses(Collection methods, InterfaceDecl intDecl, String intface, boolean needExchange) { Set includeClasses = new HashSet(); for (String method : methods) { @@ -2393,13 +4840,30 @@ public class IoTCompiler { List methParams = intDecl.getMethodParams(method); for (int i = 0; i < methPrmTypes.size(); i++) { + String genericType = getGenericType(methPrmTypes.get(i)); String simpleType = getSimpleType(methPrmTypes.get(i)); String param = methParams.get(i); if (getParamCategory(simpleType) == ParamCategory.NONPRIMITIVES) { includeClasses.add("<" + getNonPrimitiveCplusClass(simpleType) + ">"); - } else if (getParamCategory(simpleType) == ParamCategory.USERDEFINED) { - includeClasses.add("\"" + exchangeParamType(simpleType) + ".hpp\""); - } else if (param.contains("[]")) { + //} else if (getParamCategory(simpleType) == ParamCategory.USERDEFINED) { + } + if (getParamCategory(getSimpleArrayType(genericType)) == ParamCategory.USERDEFINED) { + // For original interface, we need it exchanged... not for stub interfaces + if (needExchange) { + //includeClasses.add("\"" + exchangeParamType(simpleType) + ".hpp\""); + includeClasses.add("\"" + exchangeParamType(getSimpleArrayType(genericType)) + ".hpp\""); + } else { + //includeClasses.add("\"" + simpleType + ".hpp\""); + includeClasses.add("\"" + getSimpleArrayType(genericType) + ".hpp\""); + } + } + if (getParamCategory(getSimpleArrayType(genericType)) == ParamCategory.ENUM) { + includeClasses.add("\"" + genericType + ".hpp\""); + } + if (getParamCategory(getSimpleArrayType(genericType)) == ParamCategory.STRUCT) { + includeClasses.add("\"" + genericType + ".hpp\""); + } + if (param.contains("[]")) { // Check if this is array for C++; translate into vector includeClasses.add(""); } @@ -2435,6 +4899,7 @@ public class IoTCompiler { } + // Print import statements into file private void printImportStatements(Collection importClasses) { for(String cls : importClasses) { @@ -2443,6 +4908,7 @@ public class IoTCompiler { } + // Print include statements into file private void printIncludeStatements(Collection includeClasses) { for(String cls : includeClasses) { @@ -2462,6 +4928,30 @@ public class IoTCompiler { } + // Gets generic type inside "<" and ">" + private String getGenericType(String type) { + + // Handle <, >, and , for 2-type generic/template + if (getParamCategory(type) == ParamCategory.NONPRIMITIVES) { + String[] substr = type.split("<")[1].split(">")[0].split(","); + return substr[0]; + } else + return type; + } + + + // This helper function strips off array declaration, e.g. int[] becomes int + private String getSimpleArrayType(String type) { + + // Handle [ for array declaration + String substr = type; + if (type.contains("[]")) { + substr = type.split("\\[\\]")[0]; + } + return substr; + } + + // This helper function strips off array declaration, e.g. D[] becomes D private String getSimpleIdentifier(String ident) { @@ -2474,6 +4964,7 @@ public class IoTCompiler { } + // Checks and gets type in C++ private String checkAndGetCplusType(String paramType) { if (getParamCategory(paramType) == ParamCategory.PRIMITIVES) { @@ -2484,17 +4975,22 @@ public class IoTCompiler { if (paramType.contains("<") && paramType.contains(">")) { String genericClass = getSimpleType(paramType); - String[] genericType = getTypeOfGeneric(paramType); + String genericType = getGenericType(paramType); String cplusTemplate = null; - if (genericType.length == 1) // Generic/template with one type - cplusTemplate = getNonPrimitiveCplusClass(genericClass) + - "<" + convertType(genericType[0]) + ">"; - else // Generic/template with two types - cplusTemplate = getNonPrimitiveCplusClass(genericClass) + - "<" + convertType(genericType[0]) + "," + convertType(genericType[1]) + ">"; + cplusTemplate = getNonPrimitiveCplusClass(genericClass); + if(getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED) { + cplusTemplate = cplusTemplate + "<" + genericType + "*>"; + } else { + cplusTemplate = cplusTemplate + "<" + convertType(genericType) + ">"; + } return cplusTemplate; } else return getNonPrimitiveCplusClass(paramType); + } else if(paramType.contains("[]")) { // Array type (used for return type only) + String cArray = "vector<" + convertType(getSimpleArrayType(paramType)) + ">"; + return cArray; + } else if(getParamCategory(paramType) == ParamCategory.USERDEFINED) { + return paramType + "*"; } else // Just return it as is if it's not non-primitives return paramType; @@ -2558,6 +5054,52 @@ public class IoTCompiler { } + // Return the class type for class resolution (for return value) + // - Check and return C++ array class, e.g. int A[] into int* + // - Check and return C++ vector class, e.g. List A into vector + private String checkAndGetCplusRetClsType(String paramType) { + + String paramTypeRet = null; + // Check for array declaration + if (paramType.contains("[]")) { + String type = paramType.split("\\[\\]")[0]; + paramTypeRet = getSimpleArrayType(type) + "*"; + } else if (paramType.contains("<") && paramType.contains(">")) { + // Just return it as is if it's not an array + String type = paramType.split("<")[1].split(">")[0]; + paramTypeRet = "vector<" + getGenericType(type) + ">"; + } else + paramTypeRet = paramType; + + return paramTypeRet; + } + + + // Return the class type for class resolution (for method arguments) + // - Check and return C++ array class, e.g. int A[] into int* + // - Check and return C++ vector class, e.g. List A into vector + private String checkAndGetCplusArgClsType(String paramType, String param) { + + String paramTypeRet = getEnumCplusClsType(paramType); + if (!paramTypeRet.equals(paramType)) + // Just return if it is an enum type + // Type will still be the same if it's not an enum type + return paramTypeRet; + + // Check for array declaration + if (param.contains("[]")) { + paramTypeRet = getSimpleArrayType(paramType) + "*"; + } else if (paramType.contains("<") && paramType.contains(">")) { + // Just return it as is if it's not an array + String type = paramType.split("<")[1].split(">")[0]; + paramTypeRet = "vector<" + getGenericType(type) + ">"; + } else + paramTypeRet = paramType; + + return paramTypeRet; + } + + // Detect array declaration, e.g. int A[], // then generate type "int[]" private String checkAndGetArray(String paramType, String param) { @@ -2578,17 +5120,18 @@ public class IoTCompiler { private boolean isArrayOrList(String paramType, String param) { // Check for array declaration - if (isArray(paramType, param)) + if (isArray(param)) return true; - else if (isList(paramType, param)) + else if (isList(paramType)) return true; else return false; } - // Is array or list? - private boolean isArray(String paramType, String param) { + // Is array? + // For return type we use retType as input parameter + private boolean isArray(String param) { // Check for array declaration if (param.contains("[]")) @@ -2598,8 +5141,8 @@ public class IoTCompiler { } - // Is array or list? - private boolean isList(String paramType, String param) { + // Is list? + private boolean isList(String paramType) { // Check for array declaration if (paramType.contains("List")) @@ -2610,15 +5153,14 @@ public class IoTCompiler { // Get the right type for a callback object - private String checkAndGetParamClass(String paramType, boolean needPtr) { + private String checkAndGetParamClass(String paramType) { // Check if this is generics if(getParamCategory(paramType) == ParamCategory.USERDEFINED) { - // If true then return with pointer (C++) - if (needPtr) - return exchangeParamType(paramType) + "*"; - else // Java, so no pointer needed - return exchangeParamType(paramType); + return exchangeParamType(paramType); + } else if (isList(paramType) && + (getParamCategory(getGenericType(paramType)) == ParamCategory.USERDEFINED)) { + return "List<" + exchangeParamType(getGenericType(paramType)) + ">"; } else return paramType; } @@ -2642,7 +5184,7 @@ public class IoTCompiler { } else { throw new Error("IoTCompiler: Ambiguous stub interfaces: " + setExchInt.toString() + ". Only one new interface can be declared if the object " + intface + - " needs to be passed in as an input parameter!"); + " needs to be passed in as an input parameter!\n"); } } else { // NULL value - this means policy files missing @@ -2651,7 +5193,7 @@ public class IoTCompiler { " If this is an array please type the brackets after the variable name," + " e.g. \"String str[]\", not \"String[] str\"." + " If this is a Collections (Java) / STL (C++) type, this compiler only" + - " supports List/ArrayList (Java) or list (C++)."); + " supports List/ArrayList (Java) or list (C++).\n"); } } @@ -2688,45 +5230,49 @@ public class IoTCompiler { // Generate everything if we don't see "-java" or "-cplus" if (i == args.length) { + comp.generateEnumJava(); + comp.generateStructJava(); comp.generateJavaLocalInterfaces(); comp.generateJavaInterfaces(); comp.generateJavaStubClasses(); - comp.generateJavaCallbackStubClasses(); comp.generateJavaSkeletonClass(); - comp.generateJavaCallbackSkeletonClass(); + comp.generateEnumCplus(); + comp.generateStructCplus(); comp.generateCplusLocalInterfaces(); comp.generateCPlusInterfaces(); - comp.generateCPlusStubClasses(); - comp.generateCPlusCallbackStubClasses(); - comp.generateCplusSkeletonClass(); - comp.generateCplusCallbackSkeletonClass(); + comp.generateCPlusStubClassesHpp(); + comp.generateCPlusStubClassesCpp(); + comp.generateCplusSkeletonClassHpp(); + comp.generateCplusSkeletonClassCpp(); } else { // Check other options while(i < args.length) { // Error checking if (!args[i].equals("-java") && !args[i].equals("-cplus")) { - throw new Error("IoTCompiler: ERROR - unrecognized command line option: " + args[i]); + throw new Error("IoTCompiler: ERROR - unrecognized command line option: " + args[i] + "\n"); } else { if (i + 1 < args.length) { comp.setDirectory(args[i+1]); } else - throw new Error("IoTCompiler: ERROR - please provide after option: " + args[i]); + throw new Error("IoTCompiler: ERROR - please provide after option: " + args[i] + "\n"); if (args[i].equals("-java")) { + comp.generateEnumJava(); + comp.generateStructJava(); comp.generateJavaLocalInterfaces(); comp.generateJavaInterfaces(); comp.generateJavaStubClasses(); - comp.generateJavaCallbackStubClasses(); comp.generateJavaSkeletonClass(); - comp.generateJavaCallbackSkeletonClass(); } else { + comp.generateEnumCplus(); + comp.generateStructCplus(); comp.generateCplusLocalInterfaces(); comp.generateCPlusInterfaces(); - comp.generateCPlusStubClasses(); - comp.generateCPlusCallbackStubClasses(); - comp.generateCplusSkeletonClass(); - comp.generateCplusCallbackSkeletonClass(); + comp.generateCPlusStubClassesHpp(); + comp.generateCPlusStubClassesCpp(); + comp.generateCplusSkeletonClassHpp(); + comp.generateCplusSkeletonClassCpp(); } } i = i + 2; @@ -2735,11 +5281,9 @@ public class IoTCompiler { } else { // Need to at least have exactly 2 parameters, i.e. main policy file and requires file IoTCompiler.printUsage(); - throw new Error("IoTCompiler: At least two arguments (main and requires policy files) have to be provided!"); + throw new Error("IoTCompiler: At least two arguments (main and requires policy files) have to be provided!\n"); } } } - -