[hornetq-commits] JBoss hornetq SVN: r8388 - branches/20-optimisation/src/main/org/hornetq/core/remoting/impl/wireformat.

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Author: timfox
Date: 2009-11-23 18:28:33 -0500 (Mon, 23 Nov 2009)
New Revision: 8388

Added:
   branches/20-optimisation/src/main/org/hornetq/core/remoting/impl/wireformat/MessagePacket.java
Log:
optimisation

Added: branches/20-optimisation/src/main/org/hornetq/core/remoting/impl/wireformat/MessagePacket.java
===================================================================
--- branches/20-optimisation/src/main/org/hornetq/core/remoting/impl/wireformat/MessagePacket.java	                        (rev 0)
+++ branches/20-optimisation/src/main/org/hornetq/core/remoting/impl/wireformat/MessagePacket.java	2009-11-23 23:28:33 UTC (rev 8388)
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2009 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.remoting.impl.wireformat;
+
+import org.hornetq.core.buffers.HornetQBuffer;
+import org.hornetq.core.message.Message;
+import org.hornetq.core.remoting.RemotingConnection;
+import org.hornetq.utils.DataConstants;
+
+/**
+ * A MessagePacket
+ *
+ * @author tim
+ *
+ *
+ */
+public abstract class MessagePacket extends PacketImpl
+{
+   protected Message message;
+      
+   public MessagePacket(final byte type, final Message message)
+   {
+      super(type);
+      
+      this.message = message;
+   }
+   
+   public Message getMessage()
+   {
+      return message;
+   }
+   
+   @Override
+   public HornetQBuffer encode(final RemotingConnection connection)
+   {
+      HornetQBuffer buffer = message.encodeToBuffer();
+      
+      buffer.setIndex(0, message.getEndOfMessagePosition());
+      
+      encodeExtraData(buffer);
+      
+      size = buffer.writerIndex();
+                       
+      //Write standard headers
+      
+      int len = size - DataConstants.SIZE_INT;
+      buffer.setInt(0, len);
+      buffer.setByte(DataConstants.SIZE_INT, type);
+      buffer.setLong(DataConstants.SIZE_INT + DataConstants.SIZE_BYTE, channelID);
+      
+      //Position reader for reading by Netty
+      buffer.readerIndex(0);
+      
+      return buffer;
+   }
+   
+   @Override
+   public void decodeRest(HornetQBuffer buffer)
+   {
+      //Buffer comes in after having read standard headers and positioned at Beginning of body part
+      
+      message.decodeFromBuffer(buffer);
+      
+      decodeExtraData(buffer);      
+   }
+   
+   protected abstract void encodeExtraData(HornetQBuffer buffer);
+   
+   protected abstract void decodeExtraData(HornetQBuffer buffer);
+}