Examples of net.jini.io.MarshalOutputStream

net.jini.io.MarshalOutputStream
An extension of ObjectOutputStream that implements the dynamic class loading semantics of Java(TM) Remote Method Invocation (Java RMI) argument and result marshalling (using {@link RMIClassLoader}). A MarshalOutputStream writes data that is intended to be written by a corresponding {@link MarshalInputStream}.
MarshalOutputStream implements the output side of the dynamic class loading semantics by overriding {@link ObjectOutputStream#annotateClass annotateClass} and {@link ObjectOutputStream#annotateProxyClass annotateProxyClass} toannotate class descriptors in the stream with codebase strings obtained using {@link RMIClassLoader#getClassAnnotation RMIClassLoader.getClassAnnotation}.
MarshalOutputStream writes class annotations to its own stream; a subclass may override the {@link #writeAnnotation writeAnnotation} method to write the class annotations to adifferent location.
MarshalOutputStream does not modify the stream protocol version of its instances' superclass state (see {@link ObjectOutputStream#useProtocolVersion ObjectOutputStream.useProtocolVersion}). @author Sun Microsystems, Inc. @since 2.0

            logger.log(Level.FINE,"");


            // Write transferObject to MarshalOutputStream
            ArrayList context = new ArrayList();
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            MarshalOutputStream output = 
                new MarshalOutputStream(baos,context);
            output.writeObject(transferObject);
            output.close();


            // Read transferObject from MarshalInputStream
            ByteArrayInputStream bios = 
                new ByteArrayInputStream(baos.toByteArray());
            MarshalInputStream input = new FakeMarshalInputStream(

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  /*
   * Serialize handler.
   */
  ByteArrayOutputStream bout = new ByteArrayOutputStream();
  MarshalOutputStream out =
      new MarshalOutputStream(bout, new HashSet());
  out.writeObject(aih);
  out.flush();
  byte[] bytes = bout.toByteArray();


  /*
   * Read in handler (should succeed).
   */
  MarshalInputStream in =
      new MarshalInputStream(new ByteArrayInputStream(bytes),
           ClassLoader.getSystemClassLoader(),
           false, null, new HashSet());
  ActivatableInvocationHandler aihRead =
      (ActivatableInvocationHandler) in.readObject();
  System.err.println("Test 1 passed: handler read successfully");


  /*
   * Set constraints on underlying proxy to make
   * them inconsistent with handler's constraints, then
   * serialize handler.
   */
  uproxy.setConstraints(new Constraints());
  bout.reset();
  out = new MarshalOutputStream(bout, new HashSet());
  out.writeObject(aih);
  out.flush();
  bytes = bout.toByteArray();


  /*
   * Read in handler (should fail with InvalidObjectException);
   */

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        outputHandler.handleOutput(id, desc, incarnation,
                 groupName,
                 child.getInputStream(),
                 child.getErrorStream());
        MarshalOutputStream out =
      new MarshalOutputStream(child.getOutputStream(),
            Collections.EMPTY_LIST);
        out.writeObject(id);
        ActivationGroupDesc gd = desc;
        if (gd.getClassName() == null) {
      MarshalledObject data = gd.getData();
      if (data == null) {
          data = groupData;
      }
      String loc = gd.getLocation();
      if (loc == null) {
          loc = groupLocation;
      }
      gd = new ActivationGroupDesc(
        "com.sun.jini.phoenix.ActivationGroupImpl",
        loc,
        data,
        gd.getPropertyOverrides(),
        gd.getCommandEnvironment());
        }
        out.writeObject(gd);
        out.writeLong(incarnation);
        out.flush();
        out.close();
        
    } catch (Exception e) {
        terminate();
        if (e instanceof ActivationException) {
      throw (ActivationException) e;

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  public void snapshot(OutputStream out) throws Exception {
      if (state == null) {
    state = new Activation();
      }
      MarshalOutputStream s =
    new MarshalOutputStream(out, Collections.EMPTY_LIST);
      s.writeObject(state);
      s.flush();
  }

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  }


  public void writeUpdate(OutputStream out, Object value)
      throws Exception
  {
      MarshalOutputStream s =
    new MarshalOutputStream(out, Collections.EMPTY_LIST);
      s.writeObject(value);
      s.flush();
  }

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  Class fooClass = RMIClassLoader.loadClass(codebase, className);
  Object toWrite = fooClass.newInstance();


  ByteArrayOutputStream bout = new ByteArrayOutputStream();
  MarshalOutputStream mout =
       new MarshalOutputStream(bout, Collections.EMPTY_LIST);
  mout.writeObject(toWrite);
  mout.flush();


  ByteArrayInputStream bin =
      new ByteArrayInputStream(bout.toByteArray());
  MarshalInputStream min =
      new MarshalInputStream(bin, defaultLoader, true, defaultLoader,

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  if (impl == null) {
      throw new NullPointerException();
  }
  OutputStream out = request.getResponseOutputStream();
  Collection unmodContext = Collections.unmodifiableCollection(context);
  return new MarshalOutputStream(out, unmodContext);
    }

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        // write integrity yes/no
        requestOutput.write(secondRequestByte);


        // wrap requestOutput stream in a MarshalOutputStream
        MarshalOutputStream marshalledRequest = new MarshalOutputStream(
            requestOutput, new ArrayList());


        // write method hash
        marshalledRequest.writeLong(methodHash);


        // write method args
        if (methodArgs != null) {
            for (int i = 0; i < methodArgs.length; i++) {
                Util.marshalValue(methodArgs[i],marshalledRequest);
            }
        }
        marshalledRequest.close();


        requestInput = new ByteArrayInputStream(requestOutput.toByteArray());
    }

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        // write status byte
        responseOutput.write(firstResponseByte);
 
        // wrap responseOutput stream in a MarshalOutputStream
        MarshalOutputStream marshalledResponse = new MarshalOutputStream(
            responseOutput, new ArrayList());
 
        // write returnValue to response stream
        Util.marshalValue(returnValue, marshalledResponse);


        marshalledResponse.close();
 
        responseInput = new ByteArrayInputStream(responseOutput.toByteArray());
    }

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