iotjava/iotrmi/Java/sample/CallBack_Skeleton.java

   1 package iotrmi.Java.sample;
   2
   3 import java.io.IOException;
   4 import java.util.Set;
   5 import java.util.Arrays;
   6 import iotrmi.Java.IoTRMIObject;
   7
   8 public class CallBack_Skeleton implements CallBackInterface {
   9
  10         private int objectId = 0;       // Default value is 0
  11         private final static String[] methodSignatures = {
  12
  13                 "intprintInt()",
  14                 "voidsetInt(int)"
  15         };
  16         private CallBackInterface cb;
  17         private IoTRMIObject rmiObj;
  18
  19
  20         /**
  21          * Constructors
  22          */
  23         public CallBack_Skeleton(CallBackInterface _cb, int _port) throws
  24                 ClassNotFoundException, InstantiationException,
  25                         IllegalAccessException, IOException {
  26
  27                 cb = _cb;
  28                 System.out.println("Creating CallBack_Skeleton and waiting!");
  29                 rmiObj = new IoTRMIObject(_port, methodSignatures);
  30                 ___waitRequestInvokeMethod();
  31         }
  32
  33
  34         public int printInt() {
  35                 return cb.printInt();
  36         }
  37
  38
  39         public int ___printInt() {
  40                 return printInt();
  41         }
  42
  43
  44         public void setInt(int _i) {
  45                 cb.setInt(_i);
  46         }
  47
  48
  49         public void ___setInt() {
  50                 Object[] paramObj = rmiObj.getMethodParams(new Class<?>[] { int.class },
  51                         new Class<?>[] { null }, new Class<?>[] { null });
  52                 setInt((int) paramObj[0]);
  53         }
  54
  55
  56         private void ___waitRequestInvokeMethod() throws IOException {
  57
  58                 // Loop continuously waiting for incoming bytes
  59                 while (true) {
  60
  61                         rmiObj.getMethodBytes();
  62                         int objId = rmiObj.getObjectId();
  63                         if (objId == objectId) {
  64                         // Multiplex based on object Id
  65                                 rmiObj.getMethodBytes();
  66                                 String methodSign = rmiObj.getSignature();
  67                                 Object[] paramObj = null;
  68                                 Object retObj = null;
  69                                 System.out.println("Method sign: " + methodSign);
  70
  71                                 if (methodSign.equals("intprintInt()")) {
  72                                         retObj = ___printInt();
  73                                 } else if (methodSign.equals("voidsetInt(int)")) {
  74                                         ___setInt();
  75                                 } else
  76                                         throw new Error("Signature not recognized!");
  77                                 System.out.println("Return object: " + retObj);
  78
  79                                 if (retObj != null) {
  80                                         rmiObj.sendReturnObj(retObj);
  81                                 }
  82                                 System.out.println("Servicing remote call for method: " + methodSign);
  83                         }
  84                 }
  85         }
  86
  87
  88         // Return method signatures
  89         public static String[] getMethodSignatures() {
  90
  91                 return methodSignatures;
  92         }
  93
  94
  95         public static void main(String[] args) throws Exception {
  96
  97                 int port = 5010;
  98                 CallBack cb = new CallBack(23);
  99                 CallBack_Skeleton cbSkel = new CallBack_Skeleton(cb, port);
 100                 //cbSkel.waitRequestInvokeMethod();
 101         }
 102 }