001 /** 002 * 003 * Copyright 2004 Protique Ltd 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 **/ 018 019 package org.activemq.io.impl; 020 import java.io.DataOutput; 021 import java.io.IOException; 022 import org.activemq.message.Packet; 023 import org.activemq.message.WireFormatInfo; 024 025 /** 026 * Writes a ConsumerInfo object to a Stream 027 */ 028 public class WireFormatInfoWriter extends AbstractPacketWriter { 029 030 031 /** 032 * Return the type of Packet 033 * 034 * @return integer representation of the type of Packet 035 */ 036 public int getPacketType() { 037 return Packet.WIRE_FORMAT_INFO; 038 } 039 040 /** 041 * Write a Packet instance to data output stream 042 * 043 * @param packet the instance to be seralized 044 * @param dataOut the output stream 045 * @throws IOException thrown if an error occurs 046 */ 047 public void writePacket(Packet packet, DataOutput dataOut) throws IOException { 048 dataOut.write(WireFormatInfo.MAGIC); 049 super.writePacket(packet, dataOut); 050 WireFormatInfo info = (WireFormatInfo) packet; 051 dataOut.writeInt(info.getVersion()); 052 } 053 }