1
22
23 package com.liferay.portlet.messageboards.service.jms;
24
25 import com.liferay.portal.kernel.util.MethodInvoker;
26 import com.liferay.portal.kernel.util.MethodWrapper;
27
28 import javax.jms.Message;
29 import javax.jms.MessageListener;
30 import javax.jms.ObjectMessage;
31 import javax.jms.Queue;
32 import javax.jms.QueueConnection;
33 import javax.jms.QueueConnectionFactory;
34 import javax.jms.QueueReceiver;
35 import javax.jms.QueueSession;
36 import javax.jms.Session;
37
38 import org.apache.commons.logging.Log;
39 import org.apache.commons.logging.LogFactory;
40
41
47 public class IndexConsumer implements MessageListener {
48
49 public void consume() {
50 try {
51 QueueConnectionFactory qcf = IndexQCFUtil.getQCF();
52 QueueConnection con = qcf.createQueueConnection();
53
54 QueueSession session = con.createQueueSession(
55 false, Session.AUTO_ACKNOWLEDGE);
56 Queue queue = (Queue)IndexQueueUtil.getQueue();
57
58 QueueReceiver subscriber = session.createReceiver(queue);
59
60 subscriber.setMessageListener(this);
61
62 con.start();
63 }
64 catch (Exception e) {
65 _log.error(e, e);
66 }
67 }
68
69 public void onMessage(Message msg) {
70 try {
71 ObjectMessage objMsg = (ObjectMessage)msg;
72
73 MethodWrapper methodWrapper = (MethodWrapper)objMsg.getObject();
74
75 _onMessage(methodWrapper);
76 }
77 catch (Exception e) {
78 _log.error(e, e);
79 }
80 }
81
82 private void _onMessage(MethodWrapper methodWrapper) throws Exception {
83 MethodInvoker.invoke(methodWrapper);
84 }
85
86 private static Log _log = LogFactory.getLog(IndexConsumer.class);
87
88 }