001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. 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 package org.apache.activemq.web; 018 019 import java.util.Enumeration; 020 import java.util.HashMap; 021 import java.util.Map; 022 023 import javax.jms.JMSException; 024 import javax.jms.MapMessage; 025 import javax.jms.Message; 026 import javax.jms.ObjectMessage; 027 import javax.jms.QueueBrowser; 028 import javax.jms.TextMessage; 029 030 /** 031 * Allow the user to browse a message on a queue by its ID 032 * 033 * @version $Revision: 754973 $ 034 */ 035 public class MessageQuery extends QueueBrowseQuery { 036 037 private String id; 038 private Message message; 039 040 public MessageQuery(BrokerFacade brokerFacade, SessionPool sessionPool) throws JMSException { 041 super(brokerFacade, sessionPool); 042 } 043 044 public String getId() { 045 return id; 046 } 047 048 public void setId(String id) { 049 this.id = id; 050 } 051 052 public void setMessage(Message message) { 053 this.message = message; 054 } 055 056 public Message getMessage() throws JMSException { 057 if (message == null) { 058 if (id != null) { 059 QueueBrowser tempBrowser=getBrowser(); 060 Enumeration iter = tempBrowser.getEnumeration(); 061 while (iter.hasMoreElements()) { 062 Message item = (Message) iter.nextElement(); 063 if (id.equals(item.getJMSMessageID())) { 064 message = item; 065 break; 066 } 067 } 068 tempBrowser.close(); 069 } 070 071 } 072 return message; 073 } 074 075 public Object getBody() throws JMSException { 076 Message message = getMessage(); 077 if (message instanceof TextMessage) { 078 return ((TextMessage) message).getText(); 079 } 080 if (message instanceof ObjectMessage) { 081 try { 082 return ((ObjectMessage) message).getObject(); 083 } catch (JMSException e) { 084 //message could not be parsed, make the reason available 085 return e; 086 } 087 } 088 if (message instanceof MapMessage) { 089 return createMapBody((MapMessage) message); 090 } 091 return null; 092 } 093 094 public Map<String, Object> getPropertiesMap() throws JMSException { 095 Map<String, Object> answer = new HashMap<String, Object>(); 096 Message aMessage = getMessage(); 097 Enumeration iter = aMessage.getPropertyNames(); 098 while (iter.hasMoreElements()) { 099 String name = (String) iter.nextElement(); 100 Object value = aMessage.getObjectProperty(name); 101 if (value != null) { 102 answer.put(name, value); 103 } 104 } 105 return answer; 106 } 107 108 protected Map<String, Object> createMapBody(MapMessage mapMessage) throws JMSException { 109 Map<String, Object> answer = new HashMap<String, Object>(); 110 Enumeration iter = mapMessage.getMapNames(); 111 while (iter.hasMoreElements()) { 112 String name = (String) iter.nextElement(); 113 Object value = mapMessage.getObject(name); 114 if (value != null) { 115 answer.put(name, value); 116 } 117 } 118 return answer; 119 } 120 }