1 /*** 2 * 3 * Copyright 2004 Protique Ltd 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 **/ 18 19 package org.codehaus.activemq.message; 20 21 import org.codehaus.activemq.util.JMSExceptionHelper; 22 23 import javax.jms.JMSException; 24 import java.io.Externalizable; 25 import java.io.IOException; 26 import java.io.ObjectInput; 27 import java.io.ObjectOutput; 28 29 /*** 30 * A helper class for using Packet instances with object serialization 31 * 32 * @version $Revision: 1.4 $ 33 */ 34 public class PacketFacade implements Externalizable { 35 36 private static final WireFormat wireFormat = new DefaultWireFormat(); 37 38 private transient Packet packet; 39 40 public PacketFacade() { 41 } 42 43 public PacketFacade(Packet packet) { 44 this.packet = packet; 45 } 46 47 public Packet getPacket() { 48 return packet; 49 } 50 51 public void writeExternal(ObjectOutput out) throws IOException { 52 try { 53 wireFormat.writePacket(packet, out); 54 } 55 catch (JMSException e) { 56 throw JMSExceptionHelper.newIOException(e); 57 } 58 } 59 60 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { 61 int type = in.readByte(); 62 packet = wireFormat.readPacket(type, in); 63 } 64 }