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  package org.codehaus.activemq.spring;
19  
20  import org.apache.commons.logging.Log;
21  import org.apache.commons.logging.LogFactory;
22  import org.codehaus.activemq.service.Service;
23  import org.springframework.jms.core.JmsTemplate;
24  
25  import javax.jms.Connection;
26  import javax.jms.ConnectionFactory;
27  import javax.jms.Destination;
28  import javax.jms.JMSException;
29  import javax.jms.Message;
30  import javax.jms.MessageConsumer;
31  import javax.jms.MessageListener;
32  import javax.jms.Session;
33  
34  /***
35   * @author Mike Perham
36   * @version $Revision: 1.2 $
37   */
38  public class SpringConsumer implements Service, MessageListener {
39      private static final Log log = LogFactory.getLog(SpringConsumer.class);
40  
41      private JmsTemplate template;
42      private String myId = "foo";
43      private Destination destination;
44  
45      public void start() throws JMSException {
46          String selector = "next = '" + myId + "'";
47  
48          try {
49              ConnectionFactory factory = template.getConnectionFactory();
50              Connection connection = factory.createConnection();
51              connection.setClientID(myId);
52              connection.start();
53  
54              Session session = connection.createSession(true, Session.CLIENT_ACKNOWLEDGE);
55              MessageConsumer consumer = session.createConsumer(destination, selector, false);
56              consumer.setMessageListener(this);
57          }
58          catch (JMSException ex) {
59              log.error("", ex.getLinkedException());
60              throw ex;
61          }
62      }
63  
64  
65      public void stop() throws JMSException {
66      }
67  
68      public void onMessage(Message message) {
69          System.out.println("Received message: " + message);
70          try {
71              message.acknowledge();
72          }
73          catch (JMSException e) {
74              log.error("Failed to acknowledge: " + e, e);
75          }
76      }
77  
78      // Properties
79      //-------------------------------------------------------------------------
80      public Destination getDestination() {
81          return destination;
82      }
83  
84      public void setDestination(Destination destination) {
85          this.destination = destination;
86      }
87  
88      public String getMyId() {
89          return myId;
90      }
91  
92      public void setMyId(String myId) {
93          this.myId = myId;
94      }
95  
96      public JmsTemplate getTemplate() {
97          return template;
98      }
99  
100     public void setTemplate(JmsTemplate template) {
101         this.template = template;
102     }
103 }