iotjava/iotruntime/master/IoTMaster.java

   1 package iotruntime.master;
   2
   3 import iotruntime.*;
   4 import iotruntime.slave.IoTAddress;
   5 import iotruntime.slave.IoTDeviceAddress;
   6 import iotruntime.messages.*;
   7
   8 // ASM packages
   9 import org.objectweb.asm.ClassReader;
  10 import org.objectweb.asm.ClassWriter;
  11 import org.objectweb.asm.ClassVisitor;
  12
  13 // Java packages
  14 import java.io.*;
  15 import java.util.*;
  16 import java.io.BufferedReader;
  17 import java.io.InputStream;
  18 import java.io.InputStreamReader;
  19 import java.io.File;
  20 import java.io.FileInputStream;
  21 import java.io.FileOutputStream;
  22 import java.io.ObjectInputStream;
  23 import java.io.ObjectOutputStream;
  24 import java.io.IOException;
  25 import java.lang.ClassNotFoundException;
  26 import java.lang.Class;
  27 import java.lang.reflect.*;
  28 import java.net.Socket;
  29 import java.net.ServerSocket;
  30 import java.util.*;
  31 import static java.lang.Math.toIntExact;
  32
  33 /** Class IoTMaster is responsible to use ClassRuntimeInstrumenterMaster
  34  *  to instrument the controller/device bytecode and starts multiple
  35  *  IoTSlave running on different JVM's in a distributed fashion.
  36  *
  37  * @author      Rahmadi Trimananda <rahmadi.trimananda @ uci.edu>
  38  * @version     1.0
  39  * @since       2016-06-16
  40  */
  41 public class IoTMaster {
  42
  43         /**
  44          * IoTMaster class properties
  45          * <p>
  46          * CommunicationHandler maintains the data structure for hostnames and ports
  47          * LoadBalancer assigns a job onto a host based on certain metrics
  48          */
  49         private CommunicationHandler commHan;
  50         private LoadBalancer lbIoT;
  51         private RouterConfig routerConfig;
  52         private ObjectInitHandler objInitHand;
  53         private ObjectAddressInitHandler objAddInitHand;
  54         private String[] strObjectNames;
  55         private Map<String,ClassRuntimeInstrumenterMaster> mapClassNameToCrim;
  56         /**
  57          * These properties hold information of a certain object
  58          * at a certain time
  59          */
  60         private String strObjName;
  61         private String strObjClassName;
  62         private String strObjClassInterfaceName;
  63         private String strObjStubClsIntfaceName;
  64         private String strIoTMasterHostAdd;
  65         private String strIoTSlaveControllerHostAdd;
  66         private String strIoTSlaveObjectHostAdd;
  67         private Class[] arrFieldClasses;
  68         private Object[] arrFieldValues;
  69         private Socket filesocket;
  70
  71         // Constants that are to be extracted from config file
  72         private static String STR_MASTER_MAC_ADD;
  73         private static String STR_IOT_CODE_PATH;
  74         private static String STR_CONT_PATH;
  75         private static String STR_RUNTIME_DIR;
  76         private static String STR_CLS_PATH;
  77         private static String STR_RMI_PATH;
  78         private static String STR_RMI_HOSTNAME;
  79         private static String STR_LOG_FILE_PATH;
  80         private static String STR_SSH_USERNAME;
  81         private static String STR_ROUTER_ADD;
  82         private static String STR_MONITORING_HOST;
  83         private static String STR_ZB_GATEWAY_ADDRESS;
  84         private static String STR_ZB_GATEWAY_PORT;
  85         private static String STR_ZB_IOTMASTER_PORT;
  86         private static boolean BOOL_VERBOSE;
  87
  88         /**
  89          * IoTMaster class constants
  90          * <p>
  91          * Name constants - not to be configured by users
  92          */
  93         private static final String STR_IOT_MASTER_NAME = "IoTMaster";
  94         private static final String STR_CFG_FILE_EXT = ".config";
  95         private static final String STR_CLS_FILE_EXT = ".class";
  96         private static final String STR_JAR_FILE_EXT = ".jar";
  97         private static final String STR_ZIP_FILE_EXT = ".zip";
  98         private static final String STR_TCP_PROTOCOL = "tcp";
  99         private static final String STR_UDP_PROTOCOL = "udp";
 100         private static final String STR_TCPGW_PROTOCOL = "tcpgw";
 101         private static final String STR_NO_PROTOCOL = "nopro";
 102         private static final String STR_SELF_MAC_ADD = "00:00:00:00:00:00";
 103         private static final String STR_INTERFACE_CLS_CFG = "INTERFACE_CLASS";
 104         private static final String STR_INT_STUB_CLS_CFG = "INTERFACE_STUB_CLASS";
 105         private static final String STR_FILE_TRF_CFG = "ADDITIONAL_ZIP_FILE";
 106         private static final String STR_YES = "Yes";
 107         private static final String STR_NO = "No";
 108
 109         /**
 110          * Runtime class name constants - not to be configured by users
 111          */
 112         private static final String STR_REL_INSTRUMENTER_CLS = "iotruntime.master.RelationInstrumenter";
 113         private static final String STR_SET_INSTRUMENTER_CLS = "iotruntime.master.SetInstrumenter";
 114         private static final String STR_IOT_SLAVE_CLS = "iotruntime.slave.IoTSlave";
 115         private static final String STR_IOT_DEV_ADD_CLS = "IoTDeviceAddress";
 116         private static final String STR_IOT_ZB_ADD_CLS = "IoTZigbeeAddress";
 117         private static final String STR_IOT_ADD_CLS = "IoTAddress";
 118
 119         /**
 120          * Class constructor
 121          *
 122          */
 123         public IoTMaster(String[] argObjNms) {
 124
 125                 commHan = null;
 126                 lbIoT = null;
 127                 routerConfig = null;
 128                 objInitHand = null;
 129                 objAddInitHand = null;
 130                 strObjectNames = argObjNms;
 131                 strObjName = null;
 132                 strObjClassName = null;
 133                 strObjClassInterfaceName = null;
 134                 strObjStubClsIntfaceName = null;
 135                 strIoTMasterHostAdd = null;
 136                 strIoTSlaveControllerHostAdd = null;
 137                 strIoTSlaveObjectHostAdd = null;
 138                 arrFieldClasses = null;
 139                 arrFieldValues = null;
 140                 filesocket = null;
 141                 mapClassNameToCrim = null;
 142
 143                 STR_MASTER_MAC_ADD = null;
 144                 STR_IOT_CODE_PATH = null;
 145                 STR_CONT_PATH = null;
 146                 STR_RUNTIME_DIR = null;
 147                 STR_CLS_PATH = null;
 148                 STR_RMI_PATH = null;
 149                 STR_RMI_HOSTNAME = null;
 150                 STR_LOG_FILE_PATH = null;
 151                 STR_SSH_USERNAME = null;
 152                 STR_ROUTER_ADD = null;
 153                 STR_MONITORING_HOST = null;
 154                 STR_ZB_GATEWAY_ADDRESS = null;
 155                 STR_ZB_GATEWAY_PORT = null;
 156                 STR_ZB_IOTMASTER_PORT = null;
 157                 BOOL_VERBOSE = false;
 158         }
 159
 160         /**
 161          * A method to initialize CommunicationHandler, LoadBalancer, RouterConfig and ObjectInitHandler
 162          *
 163          * @return void
 164          */
 165         private void initLiveDataStructure() {
 166
 167                 commHan = new CommunicationHandler(BOOL_VERBOSE);
 168                 lbIoT = new LoadBalancer(BOOL_VERBOSE);
 169                 lbIoT.setupLoadBalancer();
 170                 routerConfig = new RouterConfig();
 171                 routerConfig.getAddressList(STR_ROUTER_ADD);
 172                 objInitHand = new ObjectInitHandler(BOOL_VERBOSE);
 173                 objAddInitHand = new ObjectAddressInitHandler(BOOL_VERBOSE);
 174                 mapClassNameToCrim = new HashMap<String,ClassRuntimeInstrumenterMaster>();
 175         }
 176
 177         /**
 178          * A method to initialize constants from config file
 179          *
 180          * @return void
 181          */
 182         private void parseIoTMasterConfigFile() {
 183                 // Parse configuration file
 184                 Properties prop = new Properties();
 185                 String strCfgFileName = STR_IOT_MASTER_NAME + STR_CFG_FILE_EXT;
 186                 File file = new File(strCfgFileName);
 187                 FileInputStream fis = null;
 188                 try {
 189                         fis = new FileInputStream(file);
 190                         prop.load(fis);
 191                         fis.close();
 192                 } catch (IOException ex) {
 193                         System.out.println("IoTMaster: Error reading config file: " + strCfgFileName);
 194                         ex.printStackTrace();
 195                 }
 196                 // Initialize constants from config file
 197                 STR_MASTER_MAC_ADD = prop.getProperty("MAC_ADDRESS");
 198                 STR_IOT_CODE_PATH = prop.getProperty("IOT_CODE_PATH");
 199                 STR_CONT_PATH = prop.getProperty("CONTROLLERS_CODE_PATH");
 200                 STR_RUNTIME_DIR = prop.getProperty("RUNTIME_DIR");
 201                 STR_CLS_PATH = prop.getProperty("CLASS_PATH");
 202                 STR_RMI_PATH = prop.getProperty("RMI_PATH");
 203                 STR_RMI_HOSTNAME = prop.getProperty("RMI_HOSTNAME");
 204                 STR_LOG_FILE_PATH = prop.getProperty("LOG_FILE_PATH");
 205                 STR_SSH_USERNAME = prop.getProperty("SSH_USERNAME");
 206                 STR_ROUTER_ADD = prop.getProperty("ROUTER_ADD");
 207                 STR_MONITORING_HOST = prop.getProperty("MONITORING_HOST");
 208                 STR_ZB_GATEWAY_ADDRESS = prop.getProperty("ZIGBEE_GATEWAY_ADDRESS");
 209                 STR_ZB_GATEWAY_PORT = prop.getProperty("ZIGBEE_GATEWAY_PORT");
 210                 STR_ZB_IOTMASTER_PORT = prop.getProperty("ZIGBEE_IOTMASTER_PORT");
 211                 if(prop.getProperty("VERBOSE").equals(STR_YES)) {
 212                         BOOL_VERBOSE = true;
 213                 }
 214
 215                 RuntimeOutput.print("IoTMaster: Extracting information from config file: " + strCfgFileName, BOOL_VERBOSE);
 216                 RuntimeOutput.print("STR_MASTER_MAC_ADD=" + STR_MASTER_MAC_ADD, BOOL_VERBOSE);
 217                 RuntimeOutput.print("STR_IOT_CODE_PATH=" + STR_IOT_CODE_PATH, BOOL_VERBOSE);
 218                 RuntimeOutput.print("STR_CONT_PATH=" + STR_CONT_PATH, BOOL_VERBOSE);
 219                 RuntimeOutput.print("STR_RUNTIME_DIR=" + STR_RUNTIME_DIR, BOOL_VERBOSE);
 220                 RuntimeOutput.print("STR_CLS_PATH=" + STR_CLS_PATH, BOOL_VERBOSE);
 221                 RuntimeOutput.print("STR_RMI_PATH=" + STR_RMI_PATH, BOOL_VERBOSE);
 222                 RuntimeOutput.print("STR_RMI_HOSTNAME=" + STR_RMI_HOSTNAME, BOOL_VERBOSE);
 223                 RuntimeOutput.print("STR_LOG_FILE_PATH=" + STR_LOG_FILE_PATH, BOOL_VERBOSE);
 224                 RuntimeOutput.print("STR_SSH_USERNAME=" + STR_SSH_USERNAME, BOOL_VERBOSE);
 225                 RuntimeOutput.print("STR_ROUTER_ADD=" + STR_ROUTER_ADD, BOOL_VERBOSE);
 226                 RuntimeOutput.print("STR_MONITORING_HOST=" + STR_MONITORING_HOST, BOOL_VERBOSE);
 227                 RuntimeOutput.print("STR_ZB_GATEWAY_ADDRESS=" + STR_ZB_GATEWAY_ADDRESS, BOOL_VERBOSE);
 228                 RuntimeOutput.print("STR_ZB_GATEWAY_PORT=" + STR_ZB_GATEWAY_PORT, BOOL_VERBOSE);
 229                 RuntimeOutput.print("STR_ZB_IOTMASTER_PORT=" + STR_ZB_IOTMASTER_PORT, BOOL_VERBOSE);
 230                 RuntimeOutput.print("BOOL_VERBOSE=" + BOOL_VERBOSE, BOOL_VERBOSE);
 231                 RuntimeOutput.print("IoTMaster: Information extracted successfully!", BOOL_VERBOSE);
 232         }
 233
 234         /**
 235          * A method to parse information from a config file
 236          *
 237          * @param       strCfgFileName  Config file name
 238          * @param       strCfgField             Config file field name
 239          * @return      String
 240          */
 241         private String parseConfigFile(String strCfgFileName, String strCfgField) {
 242                 // Parse configuration file
 243                 Properties prop = new Properties();
 244                 File file = new File(strCfgFileName);
 245                 FileInputStream fis = null;
 246                 try {
 247                         fis = new FileInputStream(file);
 248                         prop.load(fis);
 249                         fis.close();
 250                 } catch (IOException ex) {
 251                         System.out.println("IoTMaster: Error reading config file: " + strCfgFileName);
 252                         ex.printStackTrace();
 253                 }
 254                 System.out.println("IoTMaster: Reading " + strCfgField +
 255                         " from config file: " + strCfgFileName + " with value: " +
 256                         prop.getProperty(strCfgField, null));
 257                 // NULL is returned if the property isn't found
 258                 return prop.getProperty(strCfgField, null);
 259         }
 260
 261         /**
 262          * A method to send files from IoTMaster
 263          *
 264          * @param  filesocket File socket object
 265          * @param  sFileName  File name
 266          * @param  lFLength   File length
 267          * @return            void
 268          */
 269         private void sendFile(Socket filesocket, String sFileName, long lFLength) throws IOException {
 270
 271                 File file = new File(sFileName);
 272                 byte[] bytFile = new byte[toIntExact(lFLength)];
 273                 InputStream inFileStream = new FileInputStream(file);
 274
 275                 OutputStream outFileStream = filesocket.getOutputStream();
 276                 int iCount;
 277                 while ((iCount = inFileStream.read(bytFile)) > 0) {
 278                         outFileStream.write(bytFile, 0, iCount);
 279                 }
 280                 filesocket.close();
 281                 RuntimeOutput.print("IoTMaster: File sent!", BOOL_VERBOSE);
 282         }
 283
 284         /**
 285          * A method to create a thread
 286          *
 287          * @param  sSSHCmd    SSH command
 288          * @return            void
 289          */
 290         private void createThread(String sSSHCmd) throws IOException {
 291
 292                 // Start a new thread to start a new JVM
 293                 new Thread() {
 294                         Runtime runtime = Runtime.getRuntime();
 295                         Process process = runtime.exec(sSSHCmd);
 296                 }.start();
 297                 RuntimeOutput.print("Executing: " + sSSHCmd, BOOL_VERBOSE);
 298         }
 299
 300         /**
 301          * A method to send command from master and receive reply from slave
 302          *
 303          * @params  msgSend     Message object
 304          * @params  strPurpose  String that prints purpose message
 305          * @params  inStream    Input stream
 306          * @params  outStream   Output stream
 307          * @return  void
 308          */
 309         private void commMasterToSlave(Message msgSend, String strPurpose,
 310                 ObjectInputStream inStream, ObjectOutputStream outStream)
 311                         throws IOException, ClassNotFoundException {
 312
 313                 // Send message/command from master
 314                 outStream.writeObject(msgSend);
 315                 RuntimeOutput.print("IoTMaster: Send message: " + strPurpose, BOOL_VERBOSE);
 316
 317                 // Get reply from slave as acknowledgment
 318                 Message msgReply = (Message) inStream.readObject();
 319                 RuntimeOutput.print("IoTMaster: Reply message: " + msgReply.getMessage(), BOOL_VERBOSE);
 320         }
 321
 322         /**
 323          * A private method to instrument IoTSet device
 324          *
 325          * @params  strFieldIdentifier        String field name + object ID
 326          * @params  strFieldName              String field name
 327          * @params  strIoTSlaveObjectHostAdd  String slave host address
 328          * @params  inStream                  ObjectInputStream communication
 329          * @params  inStream                  ObjectOutputStream communication
 330          * @return  void
 331          */
 332         private void instrumentIoTSetDevice(String strFieldIdentifier, String strFieldName, String strIoTSlaveObjectHostAdd,
 333                 ObjectInputStream inStream, ObjectOutputStream outStream)
 334                         throws IOException, ClassNotFoundException, InterruptedException {
 335
 336                 // Get information from the set
 337                 List<Object[]> listObject = objAddInitHand.getFields(strFieldIdentifier);
 338                 // Create a new IoTSet
 339                 Message msgCrtIoTSet = new MessageCreateSetRelation(IoTCommCode.CREATE_NEW_IOTSET, strFieldName);
 340                 commMasterToSlave(msgCrtIoTSet, "Create new IoTSet for IoTDeviceAddress!", inStream, outStream);
 341                 int iRows = listObject.size();
 342                 RuntimeOutput.print("IoTMaster: Number of rows for IoTDeviceAddress: " + iRows, BOOL_VERBOSE);
 343                 // Transfer the address
 344                 for(int iRow=0; iRow<iRows; iRow++) {
 345                         arrFieldValues = listObject.get(iRow);
 346                         // Get device address - if 00:00:00:00:00:00 that means it needs the driver object address (self)
 347                         String strDeviceAddress = null;
 348                         if (arrFieldValues[0].equals(STR_SELF_MAC_ADD)) {
 349                                 strDeviceAddress = strIoTSlaveObjectHostAdd;
 350                         } else {
 351                                 strDeviceAddress = routerConfig.getIPFromMACAddress((String) arrFieldValues[0]);
 352                         }
 353                         int iDestDeviceDriverPort = (int) arrFieldValues[1];
 354                         String strProtocol = (String) arrFieldValues[2];
 355                         // Check for wildcard feature
 356                         boolean bSrcPortWildCard = false;
 357                         boolean bDstPortWildCard = false;
 358                         if (arrFieldValues.length > 3) {
 359                                 bSrcPortWildCard = (boolean) arrFieldValues[3];
 360                                 bDstPortWildCard = (boolean) arrFieldValues[4];
 361                         }
 362                         // Add the port connection into communication handler - if it's not assigned yet
 363                         if (commHan.getComPort(strDeviceAddress) == null) {
 364                                 commHan.addPortConnection(strIoTSlaveObjectHostAdd, strDeviceAddress);
 365                         }
 366                         // Send address one by one
 367                         Message msgGetIoTSetObj = new MessageGetDeviceObject(IoTCommCode.GET_DEVICE_IOTSET_OBJECT,
 368                                 strDeviceAddress, commHan.getComPort(strDeviceAddress), iDestDeviceDriverPort,
 369                                 bSrcPortWildCard, bDstPortWildCard);
 370                         commMasterToSlave(msgGetIoTSetObj, "Get IoTSet objects!", inStream, outStream);
 371                 }
 372                 // Reinitialize IoTSet on device object
 373                 commMasterToSlave(new MessageSimple(IoTCommCode.REINITIALIZE_IOTSET_FIELD),
 374                         "Reinitialize IoTSet fields!", inStream, outStream);
 375         }
 376
 377
 378         /**
 379          * A private method to instrument IoTSet Zigbee device
 380          *
 381          * @params  Map.Entry<String,Object>  Entry of map IoTSet instrumentation
 382          * @params  strFieldName              String field name
 383          * @params  strIoTSlaveObjectHostAdd  String slave host address
 384          * @params  inStream                  ObjectInputStream communication
 385          * @params  inStream                  ObjectOutputStream communication
 386          * @return  void
 387          */
 388         private void instrumentIoTSetZBDevice(Map.Entry<String,Object> map, String strFieldName, String strIoTSlaveObjectHostAdd,
 389                 ObjectInputStream inStream, ObjectOutputStream outStream)
 390                         throws IOException, ClassNotFoundException, InterruptedException {
 391
 392                 // Get information from the set
 393                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
 394                 // Create a new IoTSet
 395                 Message msgCrtIoTSet = new MessageCreateSetRelation(IoTCommCode.CREATE_NEW_IOTSET, strFieldName);
 396                 commMasterToSlave(msgCrtIoTSet, "Create new IoTSet for IoTZigbeeAddress!", inStream, outStream);
 397                 // Prepare ZigbeeConfig
 398                 String strZigbeeGWAddress = routerConfig.getIPFromMACAddress(STR_ZB_GATEWAY_ADDRESS);
 399                 int iZigbeeGWPort = Integer.parseInt(STR_ZB_GATEWAY_PORT);
 400                 int iZigbeeIoTMasterPort = Integer.parseInt(STR_ZB_IOTMASTER_PORT);
 401                 commHan.addDevicePort(iZigbeeIoTMasterPort);
 402                 ZigbeeConfig zbConfig = new ZigbeeConfig(strZigbeeGWAddress, iZigbeeGWPort, iZigbeeIoTMasterPort,
 403                         BOOL_VERBOSE);
 404                 // Add the port connection into communication handler - if it's not assigned yet
 405                 if (commHan.getComPort(strZigbeeGWAddress) == null) {
 406                         commHan.addPortConnection(strIoTSlaveObjectHostAdd, strZigbeeGWAddress);
 407                 }
 408                 int iRows = setInstrumenter.numberOfRows();
 409                 RuntimeOutput.print("IoTMaster: Number of rows for IoTZigbeeAddress: " + iRows, BOOL_VERBOSE);
 410                 // Transfer the address
 411                 for(int iRow=0; iRow<iRows; iRow++) {
 412                         arrFieldValues = setInstrumenter.fieldValues(iRow);
 413                         // Get device address
 414                         String strZBDevAddress = (String) arrFieldValues[0];
 415                         // Send policy to Zigbee gateway - TODO: Need to clear policy first?
 416                         zbConfig.setPolicy(strIoTSlaveObjectHostAdd, commHan.getComPort(strZigbeeGWAddress), strZBDevAddress);
 417                         // Send address one by one
 418                         Message msgGetIoTSetZBObj = new MessageGetSimpleDeviceObject(IoTCommCode.GET_ZB_DEV_IOTSET_OBJECT,
 419                                 strZBDevAddress);
 420                         commMasterToSlave(msgGetIoTSetZBObj, "Get IoTSet objects!", inStream, outStream);
 421                 }
 422                 zbConfig.closeConnection();
 423                 // Reinitialize IoTSet on device object
 424                 commMasterToSlave(new MessageSimple(IoTCommCode.REINITIALIZE_IOTSET_FIELD),
 425                                                                                         "Reinitialize IoTSet fields!", inStream, outStream);
 426         }
 427
 428
 429         /**
 430          * A private method to instrument IoTSet of addresses
 431          *
 432          * @params  strFieldIdentifier        String field name + object ID
 433          * @params  strFieldName              String field name
 434          * @params  inStream                  ObjectInputStream communication
 435          * @params  inStream                  ObjectOutputStream communication
 436          * @return  void
 437          */
 438         private void instrumentIoTSetAddress(String strFieldIdentifier, String strFieldName,
 439                 ObjectInputStream inStream, ObjectOutputStream outStream)
 440                         throws IOException, ClassNotFoundException, InterruptedException {
 441
 442                 // Get information from the set
 443                 List<Object[]> listObject = objAddInitHand.getFields(strFieldIdentifier);
 444                 // Create a new IoTSet
 445                 Message msgCrtIoTSet = new MessageCreateSetRelation(IoTCommCode.CREATE_NEW_IOTSET, strFieldName);
 446                 commMasterToSlave(msgCrtIoTSet, "Create new IoTSet for IoTAddress!", inStream, outStream);
 447                 int iRows = listObject.size();
 448                 RuntimeOutput.print("IoTMaster: Number of rows for IoTAddress: " + iRows, BOOL_VERBOSE);
 449                 // Transfer the address
 450                 for(int iRow=0; iRow<iRows; iRow++) {
 451                         arrFieldValues = listObject.get(iRow);
 452                         // Get device address
 453                         String strAddress = (String) arrFieldValues[0];
 454                         // Send address one by one
 455                         Message msgGetIoTSetAddObj = new MessageGetSimpleDeviceObject(IoTCommCode.GET_ADD_IOTSET_OBJECT,
 456                                 strAddress);
 457                         commMasterToSlave(msgGetIoTSetAddObj, "Get IoTSet objects!", inStream, outStream);
 458                 }
 459                 // Reinitialize IoTSet on device object
 460                 commMasterToSlave(new MessageSimple(IoTCommCode.REINITIALIZE_IOTSET_FIELD),
 461                                                                                         "Reinitialize IoTSet fields!", inStream, outStream);
 462         }
 463
 464
 465         /**
 466          * A private method to instrument an object on a specific machine and setting up policies
 467          *
 468          * @params  strFieldObjectID  String field object ID
 469          * @return  void
 470          */
 471         private void instrumentObject(String strFieldObjectID) throws IOException {
 472
 473                 // Extract the interface name for RMI
 474                 // e.g. ProximitySensorInterface, TempSensorInterface, etc.
 475
 476 String strObjCfgFile = STR_IOT_CODE_PATH + strObjClassName + "/" + strObjClassName + STR_CFG_FILE_EXT;
 477                 strObjClassInterfaceName = parseConfigFile(strObjCfgFile, STR_INTERFACE_CLS_CFG);
 478                 strObjStubClsIntfaceName = parseConfigFile(strObjCfgFile, STR_INT_STUB_CLS_CFG);
 479                 // Create an object name, e.g. ProximitySensorImplPS1
 480                 strObjName = strObjClassName + strFieldObjectID;
 481                 // Check first if host exists
 482                 if(commHan.objectExists(strObjName)) {
 483                         // If this object exists already ...
 484                         // Re-read IoTSlave object hostname for further reference
 485                         strIoTSlaveObjectHostAdd = commHan.getHostAddress(strObjName);
 486                         RuntimeOutput.print("IoTMaster: Object with name: " + strObjName + " has existed!", BOOL_VERBOSE);
 487                 } else {
 488                         // If this is a new object ... then create one
 489                         // Get host address for IoTSlave from LoadBalancer
 490                         //strIoTSlaveObjectHostAdd = lbIoT.selectHost();
 491                         strIoTSlaveObjectHostAdd = routerConfig.getIPFromMACAddress(lbIoT.selectHost());
 492                         if (strIoTSlaveControllerHostAdd == null)
 493                                 throw new Error("IoTMaster: Could not translate MAC to IP address! Please check the router's /tmp/dhcp.leases!");
 494                         RuntimeOutput.print("IoTMaster: Object name: " + strObjName, BOOL_VERBOSE);
 495                         // Add port connection and get port numbers
 496                         // Naming for objects ProximitySensor becomes ProximitySensor0, ProximitySensor1, etc.
 497                         commHan.addPortConnection(strIoTSlaveObjectHostAdd, strObjName);
 498                         commHan.addActiveControllerObject(strFieldObjectID, strObjName, strObjClassName, strObjClassInterfaceName,
 499                                 strObjStubClsIntfaceName, strIoTSlaveObjectHostAdd, arrFieldValues, arrFieldClasses);
 500                         // ROUTING POLICY: IoTMaster and device/controller object
 501                         // Master-slave communication
 502                         routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTMasterHostAdd,
 503                                 strIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL, commHan.getComPort(strObjName));
 504                         // ROUTING POLICY: Send the same routing policy to both the hosts
 505                         routerConfig.configureHostMainPolicies(strIoTMasterHostAdd, strIoTMasterHostAdd,
 506                                 strIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL, commHan.getComPort(strObjName));
 507                         routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTMasterHostAdd,
 508                                 strIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL, commHan.getComPort(strObjName));
 509                         // Need to accommodate callback functions here - open ports for TCP
 510                         routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveControllerHostAdd,
 511                                 strIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL);
 512                         routerConfig.configureHostMainPolicies(strIoTSlaveControllerHostAdd, strIoTSlaveControllerHostAdd,
 513                                 strIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL);
 514                         routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveControllerHostAdd,
 515                                 strIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL);
 516                         // Instrument the IoTSet declarations inside the class file
 517                         instrumentObjectIoTSet(strFieldObjectID);
 518                 }
 519                 // Send routing policy to router for controller object
 520                 // ROUTING POLICY: RMI communication - RMI registry and stub ports
 521                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveControllerHostAdd, strIoTSlaveObjectHostAdd,
 522                         STR_TCP_PROTOCOL, commHan.getRMIRegPort(strObjName));
 523                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveControllerHostAdd, strIoTSlaveObjectHostAdd,
 524                         STR_TCP_PROTOCOL, commHan.getRMIStubPort(strObjName));
 525                 // Send the same set of routing policies to compute nodes
 526                 routerConfig.configureHostMainPolicies(strIoTSlaveControllerHostAdd, strIoTSlaveControllerHostAdd, strIoTSlaveObjectHostAdd,
 527                         STR_TCP_PROTOCOL, commHan.getRMIRegPort(strObjName));
 528                 routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveControllerHostAdd, strIoTSlaveObjectHostAdd,
 529                         STR_TCP_PROTOCOL, commHan.getRMIRegPort(strObjName));
 530                 routerConfig.configureHostMainPolicies(strIoTSlaveControllerHostAdd, strIoTSlaveControllerHostAdd, strIoTSlaveObjectHostAdd,
 531                         STR_TCP_PROTOCOL, commHan.getRMIStubPort(strObjName));
 532                 routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveControllerHostAdd, strIoTSlaveObjectHostAdd,
 533                         STR_TCP_PROTOCOL, commHan.getRMIStubPort(strObjName));
 534         }
 535
 536         /**
 537          * A private method to set router policies for IoTDeviceAddress objects
 538          *
 539          * @params  strFieldIdentifier        String field name + object ID
 540          * @params  Map.Entry<String,Object>  Entry of map IoTSet instrumentation
 541          * @params  strIoTSlaveObjectHostAdd  String slave host address
 542          * @return  void
 543          */
 544         private void setRouterPolicyIoTSetDevice(String strFieldIdentifier, Map.Entry<String,Object> map,
 545                 String strIoTSlaveObjectHostAdd) {
 546
 547                 // Get information from the set
 548                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
 549                 int iRows = setInstrumenter.numberOfRows();
 550                 RuntimeOutput.print("IoTMaster: Number of rows for IoTDeviceAddress: " + iRows, BOOL_VERBOSE);
 551                 // Transfer the address
 552                 for(int iRow=0; iRow<iRows; iRow++) {
 553                         arrFieldValues = setInstrumenter.fieldValues(iRow);
 554                         objAddInitHand.addField(strFieldIdentifier, arrFieldValues);    // Save this for object instantiation
 555                         // Get device address - if 00:00:00:00:00:00 that means it needs the driver object address (self)
 556                         String strDeviceAddress = null;
 557                         if (arrFieldValues[0].equals(STR_SELF_MAC_ADD)) {
 558                                 strDeviceAddress = strIoTSlaveObjectHostAdd;
 559                         } else {
 560                                 strDeviceAddress = routerConfig.getIPFromMACAddress((String) arrFieldValues[0]);
 561                         }
 562                         int iDestDeviceDriverPort = (int) arrFieldValues[1];
 563                         String strProtocol = (String) arrFieldValues[2];
 564                         // Add the port connection into communication handler - if it's not assigned yet
 565                         if (commHan.getComPort(strDeviceAddress) == null) {
 566                                 commHan.addPortConnection(strIoTSlaveObjectHostAdd, strDeviceAddress);
 567                         }
 568                         // Send routing policy to router for device drivers and devices
 569                         // ROUTING POLICY: RMI communication - RMI registry and stub ports
 570                         if((iDestDeviceDriverPort == -1) && (!strProtocol.equals(STR_NO_PROTOCOL))) {
 571                                 // Port number -1 means that we don't set the policy strictly to port number level
 572                                 // "nopro" = no protocol specified for just TCP or just UDP (can be both used as well)
 573                                 // ROUTING POLICY: Device driver and device
 574                                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveObjectHostAdd, strDeviceAddress,
 575                                         strProtocol);
 576                                 // ROUTING POLICY: Send to the compute node where the device driver is
 577                                 routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveObjectHostAdd,
 578                                         strDeviceAddress, strProtocol);
 579                         } else if((iDestDeviceDriverPort == -1) && (strProtocol.equals(STR_NO_PROTOCOL))) {
 580                                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveObjectHostAdd, strDeviceAddress);
 581                                 routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveObjectHostAdd, strDeviceAddress);
 582                         } else if(strProtocol.equals(STR_TCPGW_PROTOCOL)) {
 583                                 // This is a TCP protocol that connects, e.g. a phone to our runtime system
 584                                 // that provides a gateway access (accessed through destination port number)
 585                                 commHan.addDevicePort(iDestDeviceDriverPort);
 586                                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveObjectHostAdd, strDeviceAddress,
 587                                         STR_TCP_PROTOCOL, iDestDeviceDriverPort);
 588                                 routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveObjectHostAdd, strDeviceAddress,
 589                                         STR_TCP_PROTOCOL, iDestDeviceDriverPort);
 590                                 routerConfig.configureRouterHTTPPolicies(STR_ROUTER_ADD, strIoTSlaveObjectHostAdd, strDeviceAddress);
 591                                 routerConfig.configureHostHTTPPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveObjectHostAdd, strDeviceAddress);
 592                         } else {
 593                                 // Other port numbers...
 594                                 commHan.addDevicePort(iDestDeviceDriverPort);
 595                                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTSlaveObjectHostAdd, strDeviceAddress,
 596                                         strProtocol, commHan.getComPort(strDeviceAddress), iDestDeviceDriverPort);
 597                                 routerConfig.configureHostMainPolicies(strIoTSlaveObjectHostAdd, strIoTSlaveObjectHostAdd, strDeviceAddress,
 598                                         strProtocol, commHan.getComPort(strDeviceAddress), iDestDeviceDriverPort);
 599                         }
 600                 }
 601         }
 602
 603         /**
 604          * A private method to set router policies for IoTAddress objects
 605          *
 606          * @params  strFieldIdentifier        String field name + object ID
 607          * @params  Map.Entry<String,Object>  Entry of map IoTSet instrumentation
 608          * @params  strHostAddress            String host address
 609          * @return  void
 610          */
 611         private void setRouterPolicyIoTSetAddress(String strFieldIdentifier, Map.Entry<String,Object> map,
 612                 String strHostAddress) {
 613
 614                 // Get information from the set
 615                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
 616                 int iRows = setInstrumenter.numberOfRows();
 617                 RuntimeOutput.print("IoTMaster: Number of rows for IoTAddress: " + iRows, BOOL_VERBOSE);
 618                 // Transfer the address
 619                 for(int iRow=0; iRow<iRows; iRow++) {
 620                         arrFieldValues = setInstrumenter.fieldValues(iRow);
 621                         objAddInitHand.addField(strFieldIdentifier, arrFieldValues);    // Save this for object instantiation
 622                         // Get device address
 623                         String strAddress = (String) arrFieldValues[0];
 624                         // Setting up router policies for HTTP/HTTPs
 625                         routerConfig.configureRouterHTTPPolicies(STR_ROUTER_ADD, strHostAddress, strAddress);
 626                         routerConfig.configureHostHTTPPolicies(strHostAddress, strHostAddress, strAddress);
 627                 }
 628         }
 629
 630         /**
 631          * A private method to instrument an object's IoTSet and IoTRelation field to up policies
 632          * <p>
 633          * Mostly the IoTSet fields would contain IoTDeviceAddress objects
 634          *
 635          * @params  strFieldObjectID  String field object ID
 636          * @return  void
 637          */
 638         private void instrumentObjectIoTSet(String strFieldObjectID) throws IOException {
 639
 640                 // If this is a new object ... then create one
 641                 // Instrument the class source code and look for IoTSet for device addresses
 642                 // e.g. @config private IoTSet<IoTDeviceAddress> lb_addresses;
 643                 String strObjectClassNamePath = STR_IOT_CODE_PATH + strObjClassName + "/" + strObjClassName + STR_CLS_FILE_EXT;
 644                 FileInputStream fis = new FileInputStream(strObjectClassNamePath);
 645                 ClassReader cr = new ClassReader(fis);
 646                 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
 647                 // We need Object ID to instrument IoTDeviceAddress
 648                 ClassRuntimeInstrumenterMaster crim = new ClassRuntimeInstrumenterMaster(cw, strFieldObjectID, BOOL_VERBOSE);
 649                 cr.accept(crim, 0);
 650                 fis.close();
 651                 RuntimeOutput.print("IoTMaster: Going to instrument for " + strObjClassName + " with objectID " +
 652                         strFieldObjectID, BOOL_VERBOSE);
 653                 // Get the object and the class names
 654                 // Build objects for IoTSet and IoTRelation fields in the device object classes
 655                 mapClassNameToCrim.put(strObjClassName + strFieldObjectID, crim);
 656                 HashMap<String,Object> hmObjectFieldObjects = crim.getFieldObjects();
 657                 for(Map.Entry<String,Object> map : hmObjectFieldObjects.entrySet()) {
 658                         RuntimeOutput.print("IoTMaster: Object name: " + map.getValue().getClass().getName(), BOOL_VERBOSE);
 659                         // Iterate over HashMap and choose between processing
 660                         String strFieldName = map.getKey();
 661                         String strClassName = map.getValue().getClass().getName();
 662                         String strFieldIdentifier = strFieldName + strFieldObjectID;
 663                         if(strClassName.equals(STR_SET_INSTRUMENTER_CLS)) {
 664                                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
 665                                 if(setInstrumenter.getObjTableName().equals(STR_IOT_DEV_ADD_CLS)) {
 666                                 // Instrument the normal IoTDeviceAddress
 667                                         setRouterPolicyIoTSetDevice(strFieldIdentifier, map, strIoTSlaveObjectHostAdd);
 668                                 } else if(setInstrumenter.getObjTableName().equals(STR_IOT_ADD_CLS)) {
 669                                 // Instrument the IoTAddress
 670                                         setRouterPolicyIoTSetAddress(strFieldIdentifier, map, strIoTSlaveObjectHostAdd);
 671                                 } else if(setInstrumenter.getObjTableName().equals(STR_IOT_ZB_ADD_CLS)) {
 672                                 // Instrument the IoTZigbeeAddress - special feature for Zigbee device support
 673                                         RuntimeOutput.print("IoTMaster: IoTZigbeeAddress found! No router policy is set here..",
 674                                                 BOOL_VERBOSE);
 675                                 } else {
 676                                         String strErrMsg = "IoTMaster: Device driver object" +
 677                                                                                 " can only have IoTSet<IoTAddress>, IoTSet<IoTDeviceAddress>," +
 678                                                                                 " or IoTSet<IoTZigbeeAddress>!";
 679                                         throw new Error(strErrMsg);
 680                                 }
 681                         } else {
 682                                 String strErrMsg = "IoTMaster: Device driver object can only have IoTSet for addresses!";
 683                                 throw new Error(strErrMsg);
 684                         }
 685                 }
 686         }
 687
 688
 689         /**
 690          * A private method to create an object on a specific machine
 691          *
 692          * @params  strObjName                                  String object name
 693          * @params  strObjClassName                     String object class name
 694          * @params  strObjClassInterfaceName    String object class interface name
 695          * @params  strIoTSlaveObjectHostAdd    String IoTSlave host address
 696          * @params  strFieldObjectID                    String field object ID
 697          * @params  arrFieldValues                              Array of field values
 698          * @params  arrFieldClasses                             Array of field classes
 699          * @return  void
 700          */
 701         private void createObject(String strObjName, String strObjClassName, String strObjClassInterfaceName, String strObjStubClsIntfaceName,
 702                 String strIoTSlaveObjectHostAdd, String strFieldObjectID, Object[] arrFieldValues, Class[] arrFieldClasses)
 703                 throws IOException, FileNotFoundException, ClassNotFoundException, InterruptedException {
 704
 705                 // PROFILING
 706                 long start = 0;
 707                 long result = 0;
 708
 709                 // PROFILING
 710                 start = System.currentTimeMillis();
 711
 712                 // Construct ssh command line
 713                 // e.g. ssh rtrimana@dw-2.eecs.uci.edu cd <path>;
 714                 //      java -cp $CLASSPATH:./*.jar
 715                 //           -Djava.rmi.server.codebase=file:./*.jar
 716                 //           iotruntime.IoTSlave dw-1.eecs.uci.edu 46151 23829 42874 &
 717                 // The In-Port for IoTMaster is the Out-Port for IoTSlave and vice versa
 718                 String strSSHCommand = STR_SSH_USERNAME + strIoTSlaveObjectHostAdd + " cd " + STR_RUNTIME_DIR + " sudo java " +
 719                         STR_CLS_PATH + " " + STR_RMI_PATH + " " + STR_RMI_HOSTNAME +
 720                         strIoTSlaveObjectHostAdd + " " + STR_IOT_SLAVE_CLS + " " + strIoTMasterHostAdd + " " +
 721                         commHan.getComPort(strObjName) + " " + commHan.getRMIRegPort(strObjName) + " " +
 722                         commHan.getRMIStubPort(strObjName) + " >& " + STR_LOG_FILE_PATH + strObjName + ".log &";
 723                 RuntimeOutput.print(strSSHCommand, BOOL_VERBOSE);
 724                 // Start a new thread to start a new JVM
 725                 createThread(strSSHCommand);
 726                 ServerSocket serverSocket = new ServerSocket(commHan.getComPort(strObjName));
 727                 Socket socket = serverSocket.accept();
 728                 ObjectInputStream inStream = new ObjectInputStream(socket.getInputStream());
 729                 ObjectOutputStream outStream = new ObjectOutputStream(socket.getOutputStream());
 730
 731                 // PROFILING
 732                 result = System.currentTimeMillis()-start;
 733                 System.out.println("\n\n ==> Time needed to start JVM for " + strObjName + ": " + result + "\n\n");
 734
 735                 // PROFILING
 736                 start = System.currentTimeMillis();
 737
 738                 // Create message to transfer file first
 739                 String sFileName = strObjClassName + STR_JAR_FILE_EXT;
 740                 String sPath = STR_IOT_CODE_PATH + strObjClassName + "/" + sFileName;
 741                 File file = new File(sPath);
 742                 commMasterToSlave(new MessageSendFile(IoTCommCode.TRANSFER_FILE, sFileName, file.length()),
 743                         "Sending file!", inStream, outStream);
 744                 // Send file - JAR file for object creation
 745                 sendFile(serverSocket.accept(), sPath, file.length());
 746                 Message msgReply = (Message) inStream.readObject();
 747                 RuntimeOutput.print("IoTMaster: Reply message: " + msgReply.getMessage(), BOOL_VERBOSE);
 748
 749                 // PROFILING
 750                 result = System.currentTimeMillis()-start;
 751                 System.out.println("\n\n ==> Time needed to send JAR file for " + strObjName + ": " + result + "\n\n");
 752
 753                 // PROFILING
 754                 start = System.currentTimeMillis();
 755
 756                 // Pack object information to create object on a IoTSlave
 757                 Message msgObjIoTSlave = new MessageCreateObject(IoTCommCode.CREATE_OBJECT, strIoTSlaveObjectHostAdd,
 758                         strObjClassName, strObjName, strObjClassInterfaceName, strObjStubClsIntfaceName, commHan.getRMIRegPort(strObjName),
 759                         commHan.getRMIStubPort(strObjName), arrFieldValues, arrFieldClasses);
 760                 // Send message
 761                 commMasterToSlave(msgObjIoTSlave, "Sending object information", inStream, outStream);
 762                 // Instrument the class source code and look for IoTSet for device addresses
 763                 // e.g. @config private IoTSet<IoTDeviceAddress> lb_addresses;
 764                 RuntimeOutput.print("IoTMaster: Instantiating for " + strObjClassName + " with objectID " +
 765                         strFieldObjectID, BOOL_VERBOSE);
 766                 // Get the object and the class names
 767                 // Build objects for IoTSet and IoTRelation fields in the device object classes
 768                 ClassRuntimeInstrumenterMaster crim = mapClassNameToCrim.get(strObjClassName + strFieldObjectID);
 769                 HashMap<String,Object> hmObjectFieldObjects = crim.getFieldObjects();
 770                 for(Map.Entry<String,Object> map : hmObjectFieldObjects.entrySet()) {
 771                         RuntimeOutput.print("IoTMaster: Object name: " + map.getValue().getClass().getName(), BOOL_VERBOSE);
 772                         // Iterate over HashMap and choose between processing
 773                         String strFieldName = map.getKey();
 774                         String strClassName = map.getValue().getClass().getName();
 775                         String strFieldIdentifier = strFieldName + strFieldObjectID;
 776                         if(strClassName.equals(STR_SET_INSTRUMENTER_CLS)) {
 777                                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
 778                                 if(setInstrumenter.getObjTableName().equals(STR_IOT_DEV_ADD_CLS)) {
 779                                 // Instrument the normal IoTDeviceAddress
 780                                         synchronized(this) {
 781                                                 instrumentIoTSetDevice(strFieldIdentifier, strFieldName, strIoTSlaveObjectHostAdd, inStream, outStream);
 782                                         }
 783                                 } else if(setInstrumenter.getObjTableName().equals(STR_IOT_ZB_ADD_CLS)) {
 784                                 // Instrument the IoTZigbeeAddress - special feature for Zigbee device support
 785                                         synchronized(this) {
 786                                                 instrumentIoTSetZBDevice(map, strFieldName, strIoTSlaveObjectHostAdd, inStream, outStream);
 787                                         }
 788                                 } else if(setInstrumenter.getObjTableName().equals(STR_IOT_ADD_CLS)) {
 789                                 // Instrument the IoTAddress
 790                                         synchronized(this) {
 791                                                 instrumentIoTSetAddress(strFieldIdentifier, strFieldName, inStream, outStream);
 792                                         }
 793                                 } else {
 794                                         String strErrMsg = "IoTMaster: Device driver object" +
 795                                                                                 " can only have IoTSet<IoTAddress>, IoTSet<IoTDeviceAddress>," +
 796                                                                                 " or IoTSet<IoTZigbeeAddress>!";
 797                                         throw new Error(strErrMsg);
 798                                 }
 799                         } else {
 800                                 String strErrMsg = "IoTMaster: Device driver object can only have IoTSet for addresses!";
 801                                 throw new Error(strErrMsg);
 802                         }
 803                 }
 804                 // End the session
 805                 // TODO: Change this later
 806                 outStream.writeObject(new MessageSimple(IoTCommCode.END_SESSION));
 807
 808                 // PROFILING
 809                 result = System.currentTimeMillis()-start;
 810                 System.out.println("\n\n ==> Time needed to create object " + strObjName + " and instrument IoTDeviceAddress: " + result + "\n\n");
 811
 812                 // Closing streams
 813                 outStream.close();
 814                 inStream.close();
 815                 socket.close();
 816                 serverSocket.close();
 817         }
 818
 819
 820         /**
 821          * A private method to create controller objects
 822          *
 823          * @return  void
 824          */
 825         private void createControllerObjects() throws InterruptedException {
 826
 827                 // Create a list of threads
 828                 List<Thread> threads = new ArrayList<Thread>();
 829                 // Get the list of active controller objects and loop it
 830                 List<String> listActiveControllerObject = commHan.getActiveControllerObjectList();
 831                 for(String strObjName : listActiveControllerObject) {
 832
 833                         ObjectCreationInfo objCrtInfo = commHan.getObjectCreationInfo(strObjName);
 834                         Thread objectThread = new Thread(new Runnable() {
 835                                 public void run() {
 836                                         synchronized(this) {
 837                                                 try {
 838                                                         createObject(strObjName, objCrtInfo.getObjectClassName(), objCrtInfo.getObjectClassInterfaceName(),
 839                                                                 objCrtInfo.getObjectStubClassInterfaceName(), objCrtInfo.getIoTSlaveObjectHostAdd(),
 840                                                                 commHan.getFieldObjectID(strObjName), commHan.getArrayFieldValues(strObjName),
 841                                                                 commHan.getArrayFieldClasses(strObjName));
 842                                                 } catch (IOException                    |
 843                                                                  ClassNotFoundException |
 844                                                                  InterruptedException ex) {
 845                                                         ex.printStackTrace();
 846                                                 }
 847                                         }
 848                                 }
 849                         });
 850                         threads.add(objectThread);
 851                         objectThread.start();
 852                 }
 853                 // Join all threads
 854                 for (Thread thread : threads) {
 855                         try {
 856                                 thread.join();
 857                         } catch (InterruptedException ex) {
 858                                 ex.printStackTrace();
 859                         }
 860                 }
 861         }
 862
 863
 864         /**
 865          * A private method to instrument IoTSet
 866          *
 867          * @params  Map.Entry<String,Object>  Entry of map IoTSet instrumentation
 868          * @params  strFieldName              String field name
 869          * @return  void
 870          */
 871         private void instrumentIoTSet(Map.Entry<String,Object> map, String strFieldName)
 872                 throws IOException, ClassNotFoundException, InterruptedException {
 873
 874                 // Get information from the set
 875                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
 876                 objInitHand.addField(strFieldName, IoTCommCode.CREATE_NEW_IOTSET);
 877
 878                 int iRows = setInstrumenter.numberOfRows();
 879                 for(int iRow=0; iRow<iRows; iRow++) {
 880                         // Get field classes and values
 881                         arrFieldClasses = setInstrumenter.fieldClasses(iRow);
 882                         arrFieldValues = setInstrumenter.fieldValues(iRow);
 883                         // Get object ID and class name
 884                         String strObjID = setInstrumenter.fieldObjectID(iRow);
 885                         strObjClassName = setInstrumenter.fieldEntryType(strObjID);
 886                         // Call the method to create an object
 887                         instrumentObject(strObjID);
 888                         objInitHand.addObjectIntoField(strFieldName, strIoTSlaveObjectHostAdd, strObjName,
 889                                 strObjClassName, strObjClassInterfaceName, strObjStubClsIntfaceName, commHan.getRMIRegPort(strObjName),
 890                                 commHan.getRMIStubPort(strObjName));
 891                 }
 892         }
 893
 894
 895         /**
 896          * A private method to instrument IoTRelation
 897          *
 898          * @params  Map.Entry<String,Object>  Entry of map IoTRelation instrumentation
 899          * @params  strFieldName              String field name
 900          * @return  void
 901          */
 902         private void instrumentIoTRelation(Map.Entry<String,Object> map, String strFieldName)
 903                 throws IOException, ClassNotFoundException, InterruptedException {
 904
 905                         // Get information from the set
 906                 RelationInstrumenter relationInstrumenter = (RelationInstrumenter) map.getValue();
 907                 int iRows = relationInstrumenter.numberOfRows();
 908                 objInitHand.addField(strFieldName, IoTCommCode.CREATE_NEW_IOTRELATION);
 909
 910                 for(int iRow=0; iRow<iRows; iRow++) {
 911                         // Operate on the first set first
 912                         arrFieldClasses = relationInstrumenter.firstFieldClasses(iRow);
 913                         arrFieldValues = relationInstrumenter.firstFieldValues(iRow);
 914                         String strObjID = relationInstrumenter.firstFieldObjectID(iRow);
 915                         strObjClassName = relationInstrumenter.firstEntryFieldType(strObjID);
 916                         // Call the method to create an object
 917                         instrumentObject(strObjID);
 918                         // Get the first object controller host address
 919                         String strFirstIoTSlaveObjectHostAdd = strIoTSlaveObjectHostAdd;
 920                         objInitHand.addObjectIntoField(strFieldName, strIoTSlaveObjectHostAdd, strObjName,
 921                                 strObjClassName, strObjClassInterfaceName, strObjStubClsIntfaceName,
 922                                 commHan.getRMIRegPort(strObjName), commHan.getRMIStubPort(strObjName));
 923                         // Operate on the second set
 924                         arrFieldClasses = relationInstrumenter.secondFieldClasses(iRow);
 925                         arrFieldValues = relationInstrumenter.secondFieldValues(iRow);
 926                         strObjID = relationInstrumenter.secondFieldObjectID(iRow);
 927                         strObjClassName = relationInstrumenter.secondEntryFieldType(strObjID);
 928                         // Call the method to create an object
 929                         instrumentObject(strObjID);
 930                         // Get the second object controller host address
 931                         String strSecondIoTSlaveObjectHostAdd = strIoTSlaveObjectHostAdd;
 932                         objInitHand.addSecondObjectIntoField(strFieldName, strIoTSlaveObjectHostAdd, strObjName,
 933                                 strObjClassName, strObjClassInterfaceName, strObjStubClsIntfaceName,
 934                                 commHan.getRMIRegPort(strObjName), commHan.getRMIStubPort(strObjName));
 935
 936                         // ROUTING POLICY: first and second controller objects in IoTRelation
 937                         routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strFirstIoTSlaveObjectHostAdd,
 938                                 strSecondIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL);
 939                         // ROUTING POLICY: Send the same routing policy to both the hosts
 940                         routerConfig.configureHostMainPolicies(strFirstIoTSlaveObjectHostAdd, strFirstIoTSlaveObjectHostAdd,
 941                                 strSecondIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL);
 942                         routerConfig.configureHostMainPolicies(strSecondIoTSlaveObjectHostAdd, strFirstIoTSlaveObjectHostAdd,
 943                                 strSecondIoTSlaveObjectHostAdd, STR_TCP_PROTOCOL);
 944                 }
 945         }
 946
 947         /**
 948          * A method to reinitialize IoTSet and IoTRelation in the code based on ObjectInitHandler information
 949          *
 950          * @params  inStream                  ObjectInputStream communication
 951          * @params  outStream                 ObjectOutputStream communication
 952          * @return      void
 953          */
 954         private void initializeSetsAndRelations(ObjectInputStream inStream, ObjectOutputStream outStream)
 955                 throws IOException, ClassNotFoundException {
 956                 // Get list of fields
 957                 List<String> strFields = objInitHand.getListOfFields();
 958                 // Iterate on HostAddress
 959                 for(String str : strFields) {
 960                         IoTCommCode iotcommMsg = objInitHand.getFieldMessage(str);
 961                         if (iotcommMsg == IoTCommCode.CREATE_NEW_IOTSET) {
 962                                 // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO CREATE IOTSET
 963                                 Message msgCrtIoTSet = new MessageCreateSetRelation(IoTCommCode.CREATE_NEW_IOTSET, str);
 964                                 commMasterToSlave(msgCrtIoTSet, "Create new IoTSet!", inStream, outStream);
 965                                 List<ObjectInitInfo> listObject = objInitHand.getListObjectInitInfo(str);
 966                                 for (ObjectInitInfo objInitInfo : listObject) {
 967                                         // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO FILL IN IOTSET
 968                                         commMasterToSlave(new MessageGetObject(IoTCommCode.GET_IOTSET_OBJECT, objInitInfo.getIoTSlaveObjectHostAdd(),
 969                                                 objInitInfo.getObjectName(), objInitInfo.getObjectClassName(), objInitInfo.getObjectClassInterfaceName(),
 970                                                 objInitInfo.getObjectStubClassInterfaceName(), objInitInfo.getRMIRegistryPort(), objInitInfo.getRMIStubPort()),
 971                                                 "Get IoTSet object!", inStream, outStream);
 972                                 }
 973                                 // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO REINITIALIZE IOTSET FIELD
 974                                 commMasterToSlave(new MessageSimple(IoTCommCode.REINITIALIZE_IOTSET_FIELD),
 975                                         "Renitialize IoTSet field!", inStream, outStream);
 976                         } else if (iotcommMsg == IoTCommCode.CREATE_NEW_IOTRELATION) {
 977                                 // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO CREATE IOTRELATION
 978                                 Message msgCrtIoTRel = new MessageCreateSetRelation(IoTCommCode.CREATE_NEW_IOTRELATION, str);
 979                                 commMasterToSlave(msgCrtIoTRel, "Create new IoTRelation!", inStream, outStream);
 980                                 List<ObjectInitInfo> listObject = objInitHand.getListObjectInitInfo(str);
 981                                 List<ObjectInitInfo> listSecondObject = objInitHand.getSecondObjectInitInfo(str);
 982                                 Iterator it = listSecondObject.iterator();
 983                                 for (ObjectInitInfo objInitInfo : listObject) {
 984                                         // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO FILL IN IOTRELATION (FIRST OBJECT)
 985                                         commMasterToSlave(new MessageGetObject(IoTCommCode.GET_IOTRELATION_FIRST_OBJECT,
 986                                                 objInitInfo.getIoTSlaveObjectHostAdd(), objInitInfo.getObjectName(), objInitInfo.getObjectClassName(),
 987                                                 objInitInfo.getObjectClassInterfaceName(), objInitInfo.getObjectStubClassInterfaceName(),
 988                                                 objInitInfo.getRMIRegistryPort(), objInitInfo.getRMIStubPort()),
 989                                                 "Get IoTRelation first object!", inStream, outStream);
 990                                         ObjectInitInfo objSecObj = (ObjectInitInfo) it.next();
 991                                         // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO FILL IN IOTRELATION (SECOND OBJECT)
 992                                         commMasterToSlave(new MessageGetObject(IoTCommCode.GET_IOTRELATION_SECOND_OBJECT,
 993                                                 objSecObj.getIoTSlaveObjectHostAdd(), objSecObj.getObjectName(), objSecObj.getObjectClassName(),
 994                                                 objSecObj.getObjectClassInterfaceName(), objInitInfo.getObjectStubClassInterfaceName(),
 995                                                 objSecObj.getRMIRegistryPort(), objSecObj.getRMIStubPort()),
 996                                                 "Get IoTRelation second object!", inStream, outStream);
 997                                 }
 998                                 // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO REINITIALIZE IOTRELATION FIELD
 999                                 commMasterToSlave(new MessageSimple(IoTCommCode.REINITIALIZE_IOTRELATION_FIELD),
1000                                         "Renitialize IoTRelation field!", inStream, outStream);
1001                         }
1002                 }
1003         }
1004
1005         /**
1006          * A method to set router basic policies at once
1007          *
1008          * @param       strRouter String router name
1009          * @return      void
1010          */
1011         private void setRouterBasicPolicies(String strRouter) {
1012
1013                 String strMonitorHost = routerConfig.getIPFromMACAddress(STR_MONITORING_HOST);
1014                 routerConfig.configureRouterICMPPolicies(strRouter, strMonitorHost);
1015                 routerConfig.configureRouterDHCPPolicies(strRouter);
1016                 routerConfig.configureRouterDNSPolicies(strRouter);
1017                 routerConfig.configureRouterSSHPolicies(strRouter, strMonitorHost);
1018                 routerConfig.configureRejectPolicies(strRouter);
1019         }
1020
1021         /**
1022          * A method to set host basic policies at once
1023          *
1024          * @param       strHost String host name
1025          * @return      void
1026          */
1027         private void setHostBasicPolicies(String strHost) {
1028
1029                 String strMonitorHost = routerConfig.getIPFromMACAddress(STR_MONITORING_HOST);
1030                 routerConfig.configureHostDHCPPolicies(strHost);
1031                 routerConfig.configureHostDNSPolicies(strHost);
1032                 if (strHost.equals(strMonitorHost)) {
1033                 // Check if this is the monitoring host
1034                         routerConfig.configureHostICMPPolicies(strHost);
1035                         routerConfig.configureHostSSHPolicies(strHost);
1036                 } else {
1037                         routerConfig.configureHostICMPPolicies(strHost, strMonitorHost);
1038                         routerConfig.configureHostSSHPolicies(strHost, strMonitorHost);
1039                 }
1040                 // Apply SQL allowance policies to master host
1041                 if (strHost.equals(strIoTMasterHostAdd)) {
1042                         routerConfig.configureHostSQLPolicies(strHost);
1043                 }
1044                 routerConfig.configureRejectPolicies(strHost);
1045         }
1046
1047         /**
1048          * A method to create a thread for policy deployment
1049          *
1050          * @param  strRouterAddress             String router address to configure
1051          * @param  setHostAddresses             Set of strings for host addresses to configure
1052          * @return                              void
1053          */
1054         private void createPolicyThreads(String strRouterAddress, Set<String> setHostAddresses) throws IOException {
1055
1056                 // Create a list of threads
1057                 List<Thread> threads = new ArrayList<Thread>();
1058                 // Start threads for hosts
1059                 for(String strAddress : setHostAddresses) {
1060                         Thread policyThread = new Thread(new Runnable() {
1061                                 public void run() {
1062                                         synchronized(this) {
1063                                                 routerConfig.sendHostPolicies(strAddress);
1064                                         }
1065                                 }
1066                         });
1067                         threads.add(policyThread);
1068                         policyThread.start();
1069                         RuntimeOutput.print("Deploying policies for: " + strAddress, BOOL_VERBOSE);
1070                 }
1071                 // A thread for router
1072                 Thread policyThread = new Thread(new Runnable() {
1073                         public void run() {
1074                                 synchronized(this) {
1075                                         routerConfig.sendRouterPolicies(strRouterAddress);
1076                                 }
1077                         }
1078                 });
1079                 threads.add(policyThread);
1080                 policyThread.start();
1081                 RuntimeOutput.print("Deploying policies on router: " + strRouterAddress, BOOL_VERBOSE);
1082                 // Join all threads
1083                 for (Thread thread : threads) {
1084                         try {
1085                                 thread.join();
1086                         } catch (InterruptedException ex) {
1087                                 ex.printStackTrace();
1088                         }
1089                 }
1090         }
1091
1092
1093         /**
1094          * A method to assign objects to multiple JVMs, including
1095          * the controller/device object that uses other objects
1096          * in IoTSet and IoTRelation
1097          *
1098          * @return       void
1099          */
1100         private void createObjects() {
1101
1102                 // PROFILING
1103                 long start = 0;
1104                 long result = 0;
1105
1106                 try {
1107                         // Extract hostname for this IoTMaster from MySQL DB
1108                         strIoTMasterHostAdd = routerConfig.getIPFromMACAddress(STR_MASTER_MAC_ADD);
1109                         // Loop as we can still find controller/device classes
1110                         for(int i=0; i<strObjectNames.length; i++) {
1111                                 // PROFILING
1112                                 start = System.currentTimeMillis();
1113
1114                                 // Assign a new list of PrintWriter objects
1115                                 routerConfig.renewPrintWriter();
1116                                 // Get controller names one by one
1117                                 String strObjControllerName = strObjectNames[i];
1118                                 // Use LoadBalancer to assign a host address
1119                                 //strIoTSlaveControllerHostAdd = lbIoT.selectHost();
1120                                 strIoTSlaveControllerHostAdd = routerConfig.getIPFromMACAddress(lbIoT.selectHost());
1121                                 if (strIoTSlaveControllerHostAdd == null)
1122                                         throw new Error("IoTMaster: Could not translate MAC to IP address! Please check the router's /tmp/dhcp.leases!");
1123                                 // == START INITIALIZING CONTROLLER/DEVICE IOTSLAVE ==
1124                                 // Add port connection and get port numbers
1125                                 // Naming for objects ProximitySensor becomes ProximitySensor0, ProximitySensor1, etc.
1126                                 commHan.addPortConnection(strIoTSlaveControllerHostAdd, strObjControllerName);
1127                                 // ROUTING POLICY: IoTMaster and main controller object
1128                                 routerConfig.configureRouterMainPolicies(STR_ROUTER_ADD, strIoTMasterHostAdd,
1129                                         strIoTSlaveControllerHostAdd, STR_TCP_PROTOCOL, commHan.getComPort(strObjControllerName));
1130                                 // ROUTING POLICY: Send the same routing policy to both the hosts
1131                                 routerConfig.configureHostMainPolicies(strIoTMasterHostAdd, strIoTMasterHostAdd,
1132                                         strIoTSlaveControllerHostAdd, STR_TCP_PROTOCOL, commHan.getComPort(strObjControllerName));
1133                                 routerConfig.configureHostMainPolicies(strIoTSlaveControllerHostAdd, strIoTMasterHostAdd,
1134                                         strIoTSlaveControllerHostAdd, STR_TCP_PROTOCOL, commHan.getComPort(strObjControllerName));
1135
1136                                 // Construct ssh command line and create a controller thread for e.g. AcmeProximity
1137                                 String strSSHCommand = STR_SSH_USERNAME + strIoTSlaveControllerHostAdd + " cd " +
1138                                         STR_RUNTIME_DIR + " sudo java " + STR_CLS_PATH + " " +
1139                                         STR_RMI_PATH + " " + STR_IOT_SLAVE_CLS + " " + strIoTMasterHostAdd + " " +
1140                                         commHan.getComPort(strObjControllerName) + " " +
1141                                         commHan.getRMIRegPort(strObjControllerName) + " " +
1142                                         commHan.getRMIStubPort(strObjControllerName) + " >& " +
1143                                         STR_LOG_FILE_PATH + strObjControllerName + ".log &";
1144                                 RuntimeOutput.print(strSSHCommand, BOOL_VERBOSE);
1145                                 createThread(strSSHCommand);
1146                                 // Wait for connection
1147                                 // Create a new socket for communication
1148                                 ServerSocket serverSocket = new ServerSocket(commHan.getComPort(strObjControllerName));
1149                                 Socket socket = serverSocket.accept();
1150                                 ObjectInputStream inStream = new ObjectInputStream(socket.getInputStream());
1151                                 ObjectOutputStream outStream = new ObjectOutputStream(socket.getOutputStream());
1152                                 RuntimeOutput.print("IoTMaster: Communication established!", BOOL_VERBOSE);
1153
1154                                 // PROFILING
1155                                 result = System.currentTimeMillis()-start;
1156                                 System.out.println("\n\n ==> From start until after SSH for main controller: " + result);
1157                                 // PROFILING
1158                                 start = System.currentTimeMillis();
1159
1160                                 // Send files for every controller class
1161                                 // e.g. AcmeProximity.jar and AcmeProximity.zip
1162                                 String strControllerClassName = strObjControllerName + STR_CLS_FILE_EXT;
1163                                 String strControllerClassNamePath = STR_CONT_PATH + strObjControllerName + "/" +
1164                                         strControllerClassName;
1165                                 // Send .jar file
1166                                 String strControllerJarName = strObjControllerName + STR_JAR_FILE_EXT;
1167                                 String strControllerJarNamePath = STR_CONT_PATH + strObjControllerName + "/" +
1168                                         strControllerJarName;
1169                                 File file = new File(strControllerJarNamePath);
1170                                 commMasterToSlave(new MessageSendFile(IoTCommCode.TRANSFER_FILE, strControllerJarName, file.length()),
1171                                         "Sending file!", inStream, outStream);
1172                                 // Send file - Class file for object creation
1173                                 sendFile(serverSocket.accept(), strControllerJarNamePath, file.length());
1174                                 Message msgReply = (Message) inStream.readObject();
1175                                 RuntimeOutput.print("IoTMaster: Reply message: " + msgReply.getMessage(), BOOL_VERBOSE);
1176                                 // Send .zip file if additional zip file is specified
1177                                 String strObjCfgFile = strObjControllerName + STR_CFG_FILE_EXT;
1178                                 String strObjCfgFilePath = STR_CONT_PATH + strObjControllerName + "/" + strObjCfgFile;
1179                                 String strAdditionalFile = parseConfigFile(strObjCfgFilePath, STR_FILE_TRF_CFG);
1180                                 if (strAdditionalFile.equals(STR_YES)) {
1181                                         String strControllerCmpName = strObjControllerName + STR_ZIP_FILE_EXT;
1182                                         String strControllerCmpNamePath = STR_CONT_PATH + strObjControllerName + "/" +
1183                                                 strControllerCmpName;
1184                                         file = new File(strControllerCmpNamePath);
1185                                         commMasterToSlave(new MessageSendFile(IoTCommCode.TRANSFER_FILE, strControllerCmpName, file.length()),
1186                                                 "Sending file!", inStream, outStream);
1187                                         // Send file - Class file for object creation
1188                                         sendFile(serverSocket.accept(), strControllerCmpNamePath, file.length());
1189                                         msgReply = (Message) inStream.readObject();
1190                                         RuntimeOutput.print("IoTMaster: Reply message: " + msgReply.getMessage(), BOOL_VERBOSE);
1191                                 }
1192                                 // Create main controller/device object
1193                                 commMasterToSlave(new MessageCreateMainObject(IoTCommCode.CREATE_MAIN_OBJECT, strObjControllerName),
1194                                         "Create main object!", inStream, outStream);
1195
1196                                 // PROFILING
1197                                 result = System.currentTimeMillis()-start;
1198                                 System.out.println("\n\n ==> From IoTSlave start until main controller object is created: " + result);
1199                                 System.out.println(" ==> Including file transfer times!\n\n");
1200                                 // PROFILING
1201                                 start = System.currentTimeMillis();
1202
1203                                 // == END INITIALIZING CONTROLLER/DEVICE IOTSLAVE ==
1204                                 // Instrumenting one file
1205                                 RuntimeOutput.print("IoTMaster: Opening class file: " + strControllerClassName, BOOL_VERBOSE);
1206                                 RuntimeOutput.print("IoTMaster: Class file path: " + strControllerClassNamePath, BOOL_VERBOSE);
1207                                 FileInputStream fis = new FileInputStream(strControllerClassNamePath);
1208                                 ClassReader cr = new ClassReader(fis);
1209                                 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
1210                                 ClassRuntimeInstrumenterMaster crim = new ClassRuntimeInstrumenterMaster(cw, null, BOOL_VERBOSE);
1211                                 cr.accept(crim, 0);
1212                                 fis.close();
1213                                 // Get the object and the class names
1214                                 // Build objects for IoTSet and IoTRelation fields in the controller/device classes
1215                                 HashMap<String,Object> hmControllerFieldObjects = crim.getFieldObjects();
1216                                 for(Map.Entry<String,Object> map : hmControllerFieldObjects.entrySet()) {
1217                                         RuntimeOutput.print("IoTMaster: Object name: " + map.getValue().getClass().getName(), BOOL_VERBOSE);
1218                                         // Iterate over HashMap and choose between processing
1219                                         // SetInstrumenter vs. RelationInstrumenter
1220                                         String strFieldName = map.getKey();
1221                                         String strClassName = map.getValue().getClass().getName();
1222                                         if(strClassName.equals(STR_SET_INSTRUMENTER_CLS)) {
1223                                                 SetInstrumenter setInstrumenter = (SetInstrumenter) map.getValue();
1224                                                 if(setInstrumenter.getObjTableName().equals(STR_IOT_DEV_ADD_CLS)) {
1225                                                         String strErrMsg = "IoTMaster: Controller object" +
1226                                                                 " cannot have IoTSet<IoTDeviceAddress>!";
1227                                                         throw new Error(strErrMsg);
1228                                                 } else if(setInstrumenter.getObjTableName().equals(STR_IOT_ZB_ADD_CLS)) {
1229                                                         String strErrMsg = "IoTMaster: Controller object" +
1230                                                                 " cannot have IoTSet<ZigbeeAddress>!";
1231                                                         throw new Error(strErrMsg);
1232                                                 } else if(setInstrumenter.getObjTableName().equals(STR_IOT_ADD_CLS)) {
1233                                                 // Instrument the IoTAddress
1234                                                         setRouterPolicyIoTSetAddress(strFieldName, map, strIoTSlaveControllerHostAdd);
1235                                                         instrumentIoTSetAddress(strFieldName, strFieldName, inStream, outStream);
1236                                                 } else {
1237                                                 // Any other cases
1238                                                         instrumentIoTSet(map, strFieldName);
1239                                                 }
1240                                         } else if (strClassName.equals(STR_REL_INSTRUMENTER_CLS)) {
1241                                                 instrumentIoTRelation(map, strFieldName);
1242                                         }
1243                                 }
1244                                 // PROFILING
1245                                 result = System.currentTimeMillis()-start;
1246                                 System.out.println("\n\n ==> Time needed to instrument device driver objects: " + result + "\n\n");
1247                                 System.out.println(" ==> #Objects: " + commHan.getActiveControllerObjectList().size() + "\n\n");
1248
1249                                 // PROFILING
1250                                 start = System.currentTimeMillis();
1251
1252                                 // ROUTING POLICY: Deploy basic policies if this is the last controller
1253                                 if (i == strObjectNames.length-1) {
1254                                         // ROUTING POLICY: implement basic policies to reject all other irrelevant traffics
1255                                         for(String s: commHan.getHosts()) {
1256                                                 setHostBasicPolicies(s);
1257                                         }
1258                                         // We retain all the basic policies for router,
1259                                         // but we delete the initial allowance policies for internal all TCP and UDP communications
1260                                         setRouterBasicPolicies(STR_ROUTER_ADD);
1261                                 }
1262                                 // Close access to policy files and deploy policies
1263                                 routerConfig.close();
1264                                 // Deploy the policy
1265                                 HashSet<String> setAddresses = new HashSet<String>(commHan.getHosts());
1266                                 setAddresses.add(strIoTMasterHostAdd);
1267                                 createPolicyThreads(STR_ROUTER_ADD, setAddresses);
1268
1269                                 // PROFILING
1270                                 result = System.currentTimeMillis()-start;
1271                                 System.out.println("\n\n ==> Time needed to send policy files and deploy them : " + result + "\n\n");
1272
1273                                 // PROFILING
1274                                 start = System.currentTimeMillis();
1275
1276                                 // Separating object creations and Set/Relation initializations
1277                                 createControllerObjects();
1278
1279                                 // PROFILING
1280                                 result = System.currentTimeMillis()-start;
1281                                 System.out.println("\n\n ==> Time needed to instantiate objects: " + result + "\n\n");
1282                                 // PROFILING
1283                                 start = System.currentTimeMillis();
1284
1285                                 // Sets and relations initializations
1286                                 initializeSetsAndRelations(inStream, outStream);
1287
1288                                 // PROFILING
1289                                 result = System.currentTimeMillis()-start;
1290                                 System.out.println("\n\n ==> Time needed to initialize sets and relations: " + result + "\n\n");
1291
1292                                 // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO EXECUTE INIT METHOD
1293                                 commMasterToSlave(new MessageSimple(IoTCommCode.INVOKE_INIT_METHOD),
1294                                         "Invoke init() method!", inStream, outStream);
1295                                 // == COMMUNICATION WITH IOTSLAVE CONTROLLER TO END PROCESS
1296                                 outStream.writeObject(new MessageSimple(IoTCommCode.END_SESSION));
1297                                 outStream.close();
1298                                 inStream.close();
1299                                 socket.close();
1300                                 serverSocket.close();
1301                                 commHan.printLists();
1302                                 lbIoT.printHostInfo();
1303                         }
1304
1305                 } catch (IOException          |
1306                                  InterruptedException |
1307                                  ClassNotFoundException ex) {
1308                         System.out.println("IoTMaster: Exception: "
1309                                 + ex.getMessage());
1310                         ex.printStackTrace();
1311                 }
1312         }
1313
1314         public static void main(String args[]) {
1315
1316                 // Detect the available controller/device classes
1317                 // Input args[] should be used to list the controllers/devices
1318                 // e.g. java IoTMaster AcmeProximity AcmeThermostat AcmeVentController
1319                 IoTMaster iotMaster = new IoTMaster(args);
1320                 // Read config file
1321                 iotMaster.parseIoTMasterConfigFile();
1322                 // Initialize CommunicationHandler, LoadBalancer, and RouterConfig
1323                 iotMaster.initLiveDataStructure();
1324                 // Create objects
1325                 iotMaster.createObjects();
1326         }
1327 }