Examples of java.rmi.server.ObjID

java.rmi.server.ObjID
An ObjID is used to identify a remote object exported to an RMI runtime. When a remote object is exported, it is assigned an object identifier either implicitly or explicitly, depending on the API used to export.
The {@link #ObjID()} constructor can be used to generate a uniqueobject identifier. Such an ObjID is unique over time with respect to the host it is generated on. The {@link #ObjID(int)} constructor can be used to create a"well-known" object identifier. The scope of a well-known ObjID depends on the RMI runtime it is exported to.
An ObjID instance contains an object number (of type long) and an address space identifier (of type {@link UID}). In a unique ObjID, the address space identifier is unique with respect to a given host over time. In a well-known ObjID, the address space identifier is equivalent to one returned by invoking the {@link UID#UID(short)}constructor with the value zero.
If the system property java.rmi.server.randomIDs is defined to equal the string "true" (case insensitive), then the {@link #ObjID()} constructor will use a cryptographicallystrong random number generator to choose the object number of the returned ObjID. @author Ann Wollrath @author Peter Jones @version 1.31, 06/02/23 @since JDK1.1

      if (type == TransportConstants.Call) {
        log.log (Level.FINEST, "Handling remote method call");
        ProxyInputStream objIn = new ProxyInputStream (in);


        //Read the call header
        ObjID objId = ObjID.read (objIn);
        log.log (Level.FINER, "Read object id of " + objId.toString ());
        int opNum = objIn.readInt ();
        log.log (Level.FINER, "Read op num of " + Integer.toString (opNum));
        long hash = objIn.readLong ();        
        log.log (Level.FINER, "Read hash code of " + Long.toString (hash, 16));


        if (objId.equals (REGISTRY_OID)) {
          if (opNum == REGISTRY_OP_BIND) {
            log.log (Level.FINE, "Handling call to Registry.bind()");
            processBindCall (objIn, out);
          }
          else if (opNum == REGISTRY_OP_LIST) {
            log.log (Level.FINE, "Handling call to Registry.list()");
            processListCall (objIn, out);
          }
          else if (opNum == REGISTRY_OP_LOOKUP) {
            log.log (Level.FINE, "Handling call to Registry.lookup()");
            processLookupCall (objIn, out);
          }
          else if (opNum == REGISTRY_OP_REBIND) {
            log.log (Level.FINE, "Handling call to Registry.rebind()");
            processRebindCall (objIn, out);
          }
          else if (opNum == REGISTRY_OP_UNBIND) {
            log.log (Level.FINE, "Handling call to Registry.unbind()");
            processUnbindCall (objIn, out);
          }
        }
        else if (objId.equals (DGC_OID)) {
          if (opNum == DGC_OP_CLEAN) {
            log.log (Level.FINE, "Handling call to DGC.clean()");
            processCleanCall (objIn, out);
          }
          else if (opNum == DGC_OP_DIRTY) {
            log.log (Level.FINE, "Handling call to DGC.dirty()");
            processDirtyCall (objIn, out);
          }
        }
        else if (objId.equals (ref.getObjID ())) {
          processCall (objIn, out, opNum, hash);
        }
      }
      else if (type == TransportConstants.Ping) {
        //Acknowledge the ping

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    log.entering ("com.sun.grid.jgrid.proxy.ComputeProxy", "writeJobToDisk");
    
    log.log (Level.FINEST, "Opening file for writing");
    File file = new File (jobPath + job.getJobId ());
    ObjectOutputStream oos = new ProxyOutputStream (new FileOutputStream (file));
    ObjID tempId = new ObjID (0);
    
    job.setFilename (file.getAbsolutePath ());
    ((ProxyOutputStream)oos).setAnnotation (annotation);
    
    log.log (Level.FINEST, "Writing job file");

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     */
    public ActivatableServerRef(ActivationID aid,
                                int port,
                                RMIClientSocketFactory csf,
                                RMIServerSocketFactory ssf) {
        super(port, csf, ssf, new ObjID());
        this.aid = aid;
    }

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     * Constructs UnicastServerRef listening on the port specified.
     *
     * @param port port where this UnicastServerRef will listen for connections
     */
    public UnicastServerRef(int port) {
        this(port, null, null, new ObjID());
    }

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     * @param ssf server-side socket factory for creating server sockets
     */
    public UnicastServerRef(int port,
                            RMIClientSocketFactory csf,
                            RMIServerSocketFactory ssf) {
        this(port, csf, ssf, new ObjID());
    }

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                // rmi.log.39=Creating Activation System on port {0}.
                rLog.log(commonDebugLevel, Messages.getString("rmi.log.39", //$NON-NLS-1$
                        port));


                UnicastServerRef usr = new UnicastServerRef(port, null,
                        null, new ObjID(RMIConstants.ACTIVATION_SYSTEM_ID));


                thisStub = ExportManager.exportObject(this, usr, false);
                // rmi.log.3A=stub's ref = {0}
                rLog.log(commonDebugLevel, Messages.getString("rmi.log.3A", //$NON-NLS-1$
                        ((RemoteObject) thisStub).getRef()));

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            // wait until RMI call msg is received from client or until client
            // closes the connection
            while (waitCallMsg() != -1) {
                RMIObjectInputStream oin = new RMIObjectInputStream(in);
                final ServerRemoteCall sCall = new ServerRemoteCall(this, oin);
                ObjID id = null;


                try {
                    id = ObjID.read(oin);
                } catch (IOException ioe) {
                    // rmi.74=Unable to read Object ID

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         * @return true if this RenewInfo already contained the given ref and
         *         false otherwise
         */
        boolean addToDirtySet(RemoteRefBase ref) {
            synchronized (tablesLock) {
                ObjID id = ref.getObjId();


                if (renewTable.containsKey(id)) {
                    return true;
                }
                renewTable.put(id, new PhantomRef(

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     */
    public RegistryService(ORB orb) throws RemoteException {
        if (orb == null) {
            throw new IllegalArgumentException("Argument 'orb' is null");
        }
        orb.exportObject(_registry, new ObjID(ObjID.REGISTRY_ID));
    }

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     * @param in the stream to read from. This is responsible for its closure.
     * @return the deserialized request
     * @throws IOException for any I/O error
     */
    public static Request read(ObjectInput in) throws IOException {
        ObjID objID = ObjID.read(in);
        long methodID = in.readLong();
        return new Request(null, objID, methodID, in);
    }

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