001 /** 002 * 003 * Copyright 2004 Hiram Chirino 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 package org.activemq.message; 019 020 import java.io.IOException; 021 import java.io.Serializable; 022 023 import javax.jms.JMSException; 024 025 import org.activemq.util.SerializationHelper; 026 027 /** 028 * A receipt that also carries a response object. 029 */ 030 public class ResponseReceipt extends Receipt { 031 032 private Serializable result; 033 private byte[] resultBytes; 034 035 /** 036 * @see org.activemq.message.Receipt#getPacketType() 037 */ 038 public int getPacketType() { 039 return RESPONSE_RECEIPT_INFO; 040 } 041 042 /** 043 * @Transient 044 * 045 * @return Returns the result. 046 */ 047 public Serializable getResult() throws JMSException { 048 if (result == null) { 049 if (resultBytes == null) { 050 return null; 051 } 052 try { 053 result = (Serializable) SerializationHelper.readObject(resultBytes); 054 } 055 catch (Exception e) { 056 throw ((JMSException) new JMSException("Invalid network mesage received.").initCause(e)); 057 } 058 } 059 return result; 060 } 061 062 /** 063 * @param result The result to set. 064 */ 065 public void setResult(Serializable result) { 066 this.result = result; 067 this.resultBytes = null; 068 } 069 070 /** 071 * @param data 072 */ 073 public void setResultBytes(byte[] resultBytes) { 074 this.resultBytes = resultBytes; 075 this.result = null; 076 } 077 078 /** 079 * @return Returns the resultBytes. 080 */ 081 public byte[] getResultBytes() throws IOException { 082 if (resultBytes == null) { 083 if (result == null) { 084 return null; 085 } 086 resultBytes = SerializationHelper.writeObject(result); 087 } 088 return resultBytes; 089 } 090 091 public String toString() { 092 return super.toString() + " ResponseReceipt{ " + 093 "result = " + result + 094 ", resultBytes = " + resultBytes + 095 " }"; 096 } 097 }