Examples of org.jboss.util.stream.MarshalledValueOutputStream

org.jboss.util.stream.MarshalledValueOutputStream
An ObjectOutputStream subclass used by the MarshalledValue class to ensure the classes and proxies are loaded using the thread context class loader. Currently this does not do anything as neither class or proxy annotations are used. @author Scott.Stark@jboss.org @version $Revision: 37406 $

        }


        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        // write a marker to stream to distinguish from null value stream
        baos.write(SERIALIZABLE_VALUE);
        MarshalledValueOutputStream mvos = new MarshalledValueOutputStream(baos);
        mvos.writeObject(obj);
        mvos.flush();
        return baos.toByteArray();
    }

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                Object state = provider.getCurrentState();
                try {
                    if (provider instanceof StateTransferStreamProvider) {
                        ((StateTransferStreamProvider) provider).getCurrentState(ostream);
                    } else {
                        MarshalledValueOutputStream mvos = new MarshalledValueOutputStream(ostream);
                        toClose = mvos;
                        mvos.writeObject(state);
                    }
                } catch (Exception ex) {
                    CoreGroupCommunicationService.this.log.error("getState failed for service " + serviceName, ex);
                } finally {
                    if (toClose != null) {

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            CoreGroupCommunicationService.this.log.debug("getState called for service " + serviceName);


            StateTransferProvider provider = stateProviders.get(serviceName);
            if (provider != null) {
                MarshalledValueOutputStream mvos = null;
                Object state = provider.getCurrentState();
                try {
                    ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
                    mvos = new MarshalledValueOutputStream(baos);
                    mvos.writeObject(state);
                    mvos.flush();
                    mvos.close();
                    return baos.toByteArray();
                } catch (Exception ex) {
                    CoreGroupCommunicationService.this.log.error("getState failed for service " + serviceName, ex);
                } finally {
                    if (mvos != null) {
                        try {
                            mvos.close();
                        } catch (IOException ignored) {
                            log.debug("Caught exception closing stream used for marshalling state", ignored);
                        }
                    }
                }

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    *         (or null), and element 1 is the persistent state (or null).
    */
   private byte[] generateState(Fqn fqn, long timeout, boolean force) throws Throwable
   {


      MarshalledValueOutputStream out = null;
      byte[] result = null;
      try
      {
         ExposedByteArrayOutputStream baos = new ExposedByteArrayOutputStream(16 * 1024);
         out = new MarshalledValueOutputStream(baos);
         try
         {
            stateTransferManager.getState(out, fqn, timeout, force, false);
         }
         catch (RegionEmptyException ree)

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   {
   }


   public byte[] getState()
   {
      MarshalledValueOutputStream out = null;
      byte[] result;
      ExposedByteArrayOutputStream baos = new ExposedByteArrayOutputStream(16 * 1024);
      try
      {
         out = new MarshalledValueOutputStream(baos);


         stateTransferManager.getState(out, Fqn.ROOT, configuration.getStateRetrievalTimeout(), true, true);
      }
      catch (Throwable t)
      {

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   }


   public byte[] getState(String state_id)
   {
      if (trace) log.trace("Getting state for state id " + state_id);
      MarshalledValueOutputStream out = null;
      String sourceRoot = state_id;
      byte[] result;


      boolean hasDifferentSourceAndIntegrationRoots = state_id.indexOf(DefaultStateTransferManager.PARTIAL_STATE_DELIMITER) > 0;
      if (hasDifferentSourceAndIntegrationRoots)
      {
         sourceRoot = state_id.split(DefaultStateTransferManager.PARTIAL_STATE_DELIMITER)[0];
      }


      ExposedByteArrayOutputStream baos = new ExposedByteArrayOutputStream(16 * 1024);
      try
      {
         out = new MarshalledValueOutputStream(baos);


         stateTransferManager.getState(out, Fqn.fromString(sourceRoot),
               configuration.getStateRetrievalTimeout(), true, true);
      }
      catch (Throwable t)

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      return result;
   }


   public void getState(OutputStream ostream)
   {
      MarshalledValueOutputStream out = null;
      try
      {
         out = new MarshalledValueOutputStream(ostream);
         stateTransferManager.getState(out, Fqn.ROOT, configuration.getStateRetrievalTimeout(), true, true);
      }
      catch (Throwable t)
      {
         stateProducingFailed(t);

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   public void getState(String state_id, OutputStream ostream)
   {
      if (trace) log.trace("Getting state for state id " + state_id);
      String sourceRoot = state_id;
      MarshalledValueOutputStream out = null;
      boolean hasDifferentSourceAndIntegrationRoots = state_id.indexOf(DefaultStateTransferManager.PARTIAL_STATE_DELIMITER) > 0;
      if (hasDifferentSourceAndIntegrationRoots)
      {
         sourceRoot = state_id.split(DefaultStateTransferManager.PARTIAL_STATE_DELIMITER)[0];
      }
      try
      {
         out = new MarshalledValueOutputStream(ostream);
         stateTransferManager.getState(out, Fqn.fromString(sourceRoot), configuration.getStateRetrievalTimeout(), true, true);
      }
      catch (Throwable t)
      {
         stateProducingFailed(t);

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      CacheLoader loader = cache.getCacheLoaderManager().getCacheLoader();
      loader.remove(X);
      cache.put(X, "key1", "value1");
      Thread.sleep(1000);
      ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
      MarshalledValueOutputStream os = new MarshalledValueOutputStream(baos);
      loader.loadEntireState(os);
      cache.getMarshaller().objectToObjectStream(DefaultStateTransferManager.STREAMING_DELIMITER_NODE, os);
      //os.close();
      assertTrue(baos.size() > 0);
      loader.remove(X);

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      /* One FQN only. */
      doPutTests(FQN);
      doRemoveTests(FQN);


      ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
      MarshalledValueOutputStream os = new MarshalledValueOutputStream(baos);
      loader.loadEntireState(os);
      os.close();


      /* Add three FQNs, middle FQN last. */
      Fqn k1 = Fqn.fromString("/key1");
      Fqn k2 = Fqn.fromString("/key2");
      Fqn k3 = Fqn.fromString("/key3");


      doPutTests(k1);
      doPutTests(k3);
      doPutTests(k2);
      assertEquals(4, loader.get(k1).size());
      assertEquals(4, loader.get(k2).size());
      assertEquals(4, loader.get(k3).size());


      /* Remove middle FQN first, then the others. */
      doRemoveTests(k2);
      doRemoveTests(k3);
      doRemoveTests(k1);
      assertEquals(null, loader.get(k1));
      assertEquals(null, loader.get(k2));
      assertEquals(null, loader.get(k3));


      baos = new ByteArrayOutputStream(1024);
      os = new MarshalledValueOutputStream(baos);
      loader.loadEntireState(os);
      os.close();


      stopLoader();
   }

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