org.hornetq.core.client.impl.ClientMessageImpl Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).
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/*
 * Copyright 2005-2014 Red Hat, Inc.
 * Red Hat licenses this file to you under the Apache License, version
 * 2.0 (the "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *    http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.  See the License for the specific language governing
 * permissions and limitations under the License.
 */
package org.hornetq.core.client.impl;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;

import org.hornetq.api.core.HornetQBuffer;
import org.hornetq.api.core.HornetQBuffers;
import org.hornetq.api.core.HornetQException;
import org.hornetq.api.core.Message;
import org.hornetq.api.core.SimpleString;
import org.hornetq.core.client.HornetQClientMessageBundle;
import org.hornetq.core.message.BodyEncoder;
import org.hornetq.core.message.impl.MessageImpl;

/**
 *
 * A ClientMessageImpl
 *
 * @author Tim Fox
 * @author Andy Taylor
 *
 */
public class ClientMessageImpl extends MessageImpl implements ClientMessageInternal
{
   // added this constant here so that the client package have no dependency on JMS
   public static final SimpleString REPLYTO_HEADER_NAME = new SimpleString("JMSReplyTo");

   private int deliveryCount;

   private ClientConsumerInternal consumer;

   private int flowControlSize = -1;

   /** Used on LargeMessages only */
   private InputStream bodyInputStream;

   /*
    * Constructor for when reading from remoting
    */
   public ClientMessageImpl()
   {
   }

   /*
    * Construct messages before sending
    */
   public ClientMessageImpl(final byte type,
                            final boolean durable,
                            final long expiration,
                            final long timestamp,
                            final byte priority,
                            final int initialMessageBufferSize)
   {
      super(type, durable, expiration, timestamp, priority, initialMessageBufferSize);
   }

   public boolean isServerMessage()
   {
      return false;
   }

   public void onReceipt(final ClientConsumerInternal consumer)
   {
      this.consumer = consumer;
   }

   public void setDeliveryCount(final int deliveryCount)
   {
      this.deliveryCount = deliveryCount;
   }

   public int getDeliveryCount()
   {
      return deliveryCount;
   }

   public void acknowledge() throws HornetQException
   {
      if (consumer != null)
      {
         consumer.acknowledge(this);
      }
   }

   public void individualAcknowledge() throws HornetQException
   {
      if (consumer != null)
      {
         consumer.individualAcknowledge(this);
      }
   }

   public int getFlowControlSize()
   {
      if (flowControlSize < 0)
      {
         throw new IllegalStateException("Flow Control hasn't been set");
      }
      return flowControlSize;
   }

   public void setFlowControlSize(final int flowControlSize)
   {
      this.flowControlSize = flowControlSize;
   }

   /**
    * @return the largeMessage
    */
   public boolean isLargeMessage()
   {
      return false;
   }

   public boolean isCompressed()
   {
      return properties.getBooleanProperty(Message.HDR_LARGE_COMPRESSED);
   }

   public int getBodySize()
   {
      return buffer.writerIndex() - buffer.readerIndex();
   }

   @Override
   public String toString()
   {
      return "ClientMessage[messageID=" + messageID + ", durable=" + durable + ", address=" + getAddress()  + ",userID=" + (getUserID() != null ? getUserID() : "null") + ",properties=" + properties.toString() + "]";
   }

   @Override
   public void saveToOutputStream(final OutputStream out) throws HornetQException
   {
      try
      {
         byte[] readBuffer = new byte[getBodySize()];
         getBodyBuffer().readBytes(readBuffer);
         out.write(readBuffer);
         out.flush();
      }
      catch (IOException e)
      {
         throw HornetQClientMessageBundle.BUNDLE.errorSavingBody(e);
      }
   }

   @Override
   public void setOutputStream(final OutputStream out) throws HornetQException
   {
      saveToOutputStream(out);
   }

   @Override
   public boolean waitOutputStreamCompletion(final long timeMilliseconds) throws HornetQException
   {
      return true;
   }

   @Override
   public void discardBody()
   {
   }

   /**
    * @return the bodyInputStream
    */
   public InputStream getBodyInputStream()
   {
      return bodyInputStream;
   }

   /**
    * @param bodyInputStream the bodyInputStream to set
    */
   public void setBodyInputStream(final InputStream bodyInputStream)
   {
      this.bodyInputStream = bodyInputStream;
   }

   @Override
   public BodyEncoder getBodyEncoder() throws HornetQException
   {
      return new DecodingContext();
   }

   private final class DecodingContext implements BodyEncoder
   {
      public DecodingContext()
      {
      }

      public void open()
      {
         getBodyBuffer().readerIndex(0);
      }

      public void close()
      {
      }

      public long getLargeBodySize()
      {
         if (isLargeMessage())
         {
            return getBodyBuffer().writerIndex();
         }
         else
         {
            return getBodyBuffer().writerIndex() - BODY_OFFSET;
         }
      }

      public int encode(final ByteBuffer bufferRead) throws HornetQException
      {
         HornetQBuffer buffer1 = HornetQBuffers.wrappedBuffer(bufferRead);
         return encode(buffer1, bufferRead.capacity());
      }

      public int encode(final HornetQBuffer bufferOut, final int size)
      {
         byte[] bytes = new byte[size];
         getWholeBuffer().readBytes(bytes);
         bufferOut.writeBytes(bytes, 0, size);
         return size;
      }
   }
}