iotjava/iotrmi/Java/sample/TestClass_CBStub.java

   1 package iotrmi.Java.sample;
   2
   3 import java.io.IOException;
   4 import iotrmi.Java.IoTRMICall;
   5 import iotruntime.master.CommunicationHandler;
   6
   7 import java.util.Arrays;
   8 import java.util.List;
   9 import java.util.ArrayList;
  10
  11 import iotrmi.Java.IoTRMIObject;
  12
  13 public class TestClass_CBStub implements TestClassInterface {
  14
  15         /**
  16          * Class Properties
  17          */
  18         private IoTRMICall rmiCall;
  19         private String address;
  20         private int[] ports;
  21         private List<CallBackInterface> listCBObj;
  22         private IoTRMIObject rmiObj;
  23
  24         /**
  25          * Class Constants
  26          */
  27         private final static int NUM_CB_OBJ = 1;
  28         private int objectId = 0;       // Default value is 0
  29         private static int objIdCnt = 0; // Counter for callback object Ids
  30         private final static String[] methodSignatures = {
  31
  32                 "voidsetA(int)",
  33                 "voidsetB(float)",
  34                 "voidsetC(string)",
  35                 "sumArray(string[])",
  36                 "intsetAndGetA(int)",
  37                 "intsetACAndGetA(string,int)",
  38                 "intcallBack()",
  39                 "voidregisterCallBack(CallBackInterface)",
  40                 "voidregisterCallBack(CallBackInterface[])",
  41                 "registercallback"
  42         };
  43
  44         /**
  45          * Constructors
  46          */
  47         // Assign rmiCall from outside
  48         public TestClass_CBStub(IoTRMICall _rmiCall, int _objectId, String _address, int[] _ports) throws IOException {
  49
  50                 address = _address;
  51                 ports = _ports;
  52                 objectId = _objectId;
  53                 rmiCall = _rmiCall;
  54                 listCBObj = new ArrayList<CallBackInterface>();
  55                 init_CallBack();
  56         }
  57
  58
  59         /**
  60          * Instantiation of callback objects
  61          */
  62         public static int numCallbackObjects() {
  63
  64                 return NUM_CB_OBJ;      // Generated by the IoTCompiler
  65         }
  66
  67
  68         // Return method signatures
  69         public static String[] getMethodSignatures() {
  70
  71                 return methodSignatures;
  72         }
  73
  74
  75         // Initialize callback
  76         public void init_CallBack() {
  77
  78                 Thread thread = new Thread() {
  79                         public void run() {
  80                         try{
  81                                         String[] methodSignatures = CallBack_CBSkeleton.getMethodSignatures();
  82                                         rmiObj = new IoTRMIObject(ports[0], methodSignatures);
  83                                         Object retObj = null;
  84                                         while (true) {
  85                                                 byte[] method = rmiObj.getMethodBytes();
  86                                                 int objId = IoTRMIObject.getObjectId(method);
  87                                                 //CallBack_CBSkeleton skel = (CallBack_CBSkeleton) listCBObj.get(objId);
  88                                                 CallBackInterface cb = listCBObj.get(objId);
  89                                                 CallBack_CBSkeleton skel = null;
  90                                                 if (cb instanceof CallBack_CBSkeleton) { // in case we have multiple callback classes
  91                                                         skel = (CallBack_CBSkeleton) cb;
  92                                                 }
  93                                                 if (skel != null) {
  94                                                         rmiObj.setMethodBytes(method);
  95                                                         retObj = skel.invokeMethod(rmiObj);
  96                                                 }
  97                                                 if (retObj != null) {
  98                                                         rmiObj.sendReturnObj(retObj);
  99                                                 }
 100                                         }
 101                                 } catch (Exception ex){
 102                                         ex.printStackTrace();
 103                                         throw new Error("Error instantiating class CallBack_Skeleton!");
 104                         }
 105                     }
 106                 };
 107                 thread.start();
 108
 109                 String sign = "registercallback";
 110                 Class<?> retType = void.class;
 111                 // port, address, rev, and number of objects
 112                 Class<?>[] paramCls = new Class<?>[] { int.class, String.class, int.class };
 113                 Object[] paramObj = new Object[] { ports[0], address, 0 };
 114                 rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 115         }
 116
 117
 118         // Single callback handling
 119         public void registerCallback(CallBackInterface _cb) {
 120
 121                 Thread thread = new Thread() {
 122                         public void run() {
 123                     try{
 124                                         CallBack_Skeleton cbskel = new CallBack_Skeleton(_cb, ports[0]);
 125                                         cbskel.waitRequestInvokeMethod();
 126                                 } catch (Exception ex){
 127                                         ex.printStackTrace();
 128                                         throw new Error("Error instantiating class CallBack_Skeleton!");
 129                     }
 130                 }
 131             };
 132                 thread.start();
 133
 134                 String sign = "voidregisterCallBack(CallBackInterface)";
 135                 Class<?> retType = void.class;
 136                 // port, address, and rev
 137                 Class<?>[] paramCls = new Class<?>[] { int.class, String.class, int.class };
 138                 Object[] paramObj = new Object[] { ports[0], address, 0 };
 139                 rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 140         }
 141
 142
 143         public void registerCallback(CallBackInterface[] _cb) {
 144
 145                 try {
 146                         //for (int objId = 0; objId < _cb.length; objId++) {
 147                         for (CallBackInterface cb : _cb) {
 148                                 CallBack_CBSkeleton skel = new CallBack_CBSkeleton(cb, objIdCnt++);
 149                                 listCBObj.add(skel);
 150                         }
 151                 } catch (Exception ex){
 152                         ex.printStackTrace();
 153                         throw new Error("Class not found / instantiation / illegal access / IO error!");
 154                 }
 155
 156                 String sign = "voidregisterCallBack(CallBackInterface[])";
 157                 Class<?> retType = void.class;
 158                 // port, address, rev, and number of objects
 159                 Class<?>[] paramCls = new Class<?>[] { int.class };
 160                 Object[] paramObj = new Object[] { _cb.length };
 161                 rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 162         }
 163
 164
 165         public void setA(int _int) {
 166
 167                 String sign = "voidsetA(int)";
 168                 Class<?> retType = void.class;
 169                 Class<?>[] paramCls = new Class<?>[] { int.class };
 170                 Object[] paramObj = new Object[] { _int };
 171                 rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 172         }
 173
 174
 175         public void setB(float _float) {
 176
 177                 String sign = "voidsetB(float)";
 178                 Class<?> retType = void.class;
 179                 Class<?>[] paramCls = new Class<?>[] { float.class };
 180                 Object[] paramObj = new Object[] { _float };
 181                 rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 182         }
 183
 184
 185         public void setC(String _string) {
 186
 187                 String sign = "voidsetC(string)";
 188                 Class<?> retType = void.class;
 189                 Class<?>[] paramCls = new Class<?>[] { String.class };
 190                 Object[] paramObj = new Object[] { _string };
 191                 rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 192         }
 193
 194
 195         // Getters
 196         public String sumArray(String[] newA) {
 197
 198                 String sign = "sumArray(string[])";
 199                 Class<?> retType = String.class;
 200                 Class<?>[] paramCls = new Class<?>[] { String[].class };
 201                 Object[] paramObj = new Object[] { newA };
 202                 Object retObj = rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 203                 return (String)retObj;
 204         }
 205
 206
 207         public int setAndGetA(int newA) {
 208                 String sign = "intsetAndGetA(int)";
 209                 Class<?> retType = int.class;
 210                 Class<?>[] paramCls = new Class<?>[] { int.class };
 211                 Object[] paramObj = new Object[] { newA };
 212                 Object retObj = rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 213                 return (int)retObj;
 214         }
 215
 216
 217         public int setACAndGetA(String newC, int newA) {
 218
 219                 String sign = "intsetACAndGetA(string,int)";
 220                 Class<?> retType = int.class;
 221                 Class<?>[] paramCls = new Class<?>[] { String.class, int.class };
 222                 Object[] paramObj = new Object[] { newC, newA };
 223                 Object retObj = rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 224                 return (int)retObj;
 225         }
 226
 227
 228         public int callBack() {
 229
 230                 String sign = "intcallBack()";
 231                 Class<?> retType = int.class;
 232                 Class<?>[] paramCls = new Class<?>[] { };
 233                 Object[] paramObj = new Object[] { };
 234                 Object retObj = rmiCall.remoteCall(objectId, sign, retType, null, null, paramCls, paramObj);
 235                 return (int)retObj;
 236
 237         }
 238
 239
 240         public static void main(String[] args) throws Exception {
 241
 242                 CommunicationHandler comHan = new CommunicationHandler(true);
 243                 int numOfPorts = TestClass_Stub.numCallbackObjects();
 244                 int[] ports = comHan.getCallbackPorts(numOfPorts);
 245
 246                 int port = 5010;
 247                 String address = "localhost";
 248                 int rev = 0;
 249
 250                 System.out.println("Allocated ports: " + Arrays.toString(ports));
 251
 252                 TestClass_Stub tcstub = new TestClass_Stub(port, address, rev, ports);
 253                 System.out.println("Return value: " + tcstub.setAndGetA(123));
 254                 System.out.println("Return value: " + tcstub.setACAndGetA("string", 123));
 255                 System.out.println("Return value: " + tcstub.sumArray(new String[] { "123", "456", "987" }));
 256
 257                 CallBackInterface cb1 = new CallBack(23);
 258                 CallBackInterface cb2 = new CallBack(33);
 259                 CallBackInterface cb3 = new CallBack(43);
 260                 CallBackInterface[] cb = { cb1, cb2, cb3 };
 261                 tcstub.registerCallback(cb);
 262                 System.out.println("Return value from callback: " + tcstub.callBack());
 263                 CallBackInterface cb4 = new CallBack(10);
 264                 CallBackInterface cb5 = new CallBack(11);
 265                 CallBackInterface cb6 = new CallBack(12);
 266                 CallBackInterface[] cbt = { cb4, cb5, cb6 };
 267                 tcstub.registerCallback(cbt);
 268                 System.out.println("Return value from callback: " + tcstub.callBack());
 269         }
 270 }
 271
 272