org.apache.activemq.artemis.core.protocol.core.impl.wireformat.SessionReceiveMessage 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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/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.apache.activemq.artemis.core.protocol.core.impl.wireformat;

import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.core.message.impl.MessageInternal;
import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection;
import org.apache.activemq.artemis.utils.DataConstants;

public class SessionReceiveMessage extends MessagePacket
{
   // Constants -----------------------------------------------------

   // Attributes ----------------------------------------------------

   private long consumerID;

   private int deliveryCount;

   public SessionReceiveMessage(final long consumerID, final MessageInternal message, final int deliveryCount)
   {
      super(SESS_RECEIVE_MSG, message);

      this.consumerID = consumerID;

      this.deliveryCount = deliveryCount;
   }

   public SessionReceiveMessage(final MessageInternal message)
   {
      super(SESS_RECEIVE_MSG, message);
   }

   // Public --------------------------------------------------------

   public long getConsumerID()
   {
      return consumerID;
   }

   public int getDeliveryCount()
   {
      return deliveryCount;
   }

   @Override
   public ActiveMQBuffer encode(final RemotingConnection connection)
   {
      ActiveMQBuffer buffer = message.getEncodedBuffer();

      // Sanity check
      if (buffer.writerIndex() != message.getEndOfMessagePosition())
      {
         throw new IllegalStateException("Wrong encode position");
      }

      buffer.writeLong(consumerID);
      buffer.writeInt(deliveryCount);

      size = buffer.writerIndex();

      // Write standard headers

      int len = size - DataConstants.SIZE_INT;
      buffer.setInt(0, len);
      buffer.setByte(DataConstants.SIZE_INT, getType());
      buffer.setLong(DataConstants.SIZE_INT + DataConstants.SIZE_BYTE, channelID);

      // Position reader for reading by Netty
      buffer.setIndex(0, size);

      return buffer;
   }

   @Override
   public void decode(final ActiveMQBuffer buffer)
   {
      channelID = buffer.readLong();

      message.decodeFromBuffer(buffer);

      consumerID = buffer.readLong();

      deliveryCount = buffer.readInt();

      size = buffer.readerIndex();

      // Need to position buffer for reading

      buffer.setIndex(PACKET_HEADERS_SIZE + DataConstants.SIZE_INT, message.getEndOfBodyPosition());
   }

   @Override
   public int hashCode()
   {
      final int prime = 31;
      int result = super.hashCode();
      result = prime * result + (int)(consumerID ^ (consumerID >>> 32));
      result = prime * result + deliveryCount;
      return result;
   }

   @Override
   public boolean equals(Object obj)
   {
      if (this == obj)
         return true;
      if (!super.equals(obj))
         return false;
      if (!(obj instanceof SessionReceiveMessage))
         return false;
      SessionReceiveMessage other = (SessionReceiveMessage)obj;
      if (consumerID != other.consumerID)
         return false;
      if (deliveryCount != other.deliveryCount)
         return false;
      return true;
   }

}