1 /*
2 The contents of this file are subject to the Mozilla Public License Version 1.1
3 (the "License"); you may not use this file except in compliance with the License.
4 You may obtain a copy of the License at http://www.mozilla.org/MPL/
5 Software distributed under the License is distributed on an "AS IS" basis,
6 WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
7 specific language governing rights and limitations under the License.
8
9 The Original Code is "JMSQueueAdapter.java". Description:
10 "An implementation of JMSDestination that uses an underlying Queue."
11
12 The Initial Developer of the Original Code is University Health Network. Copyright (C)
13 2004. All Rights Reserved.
14
15 Contributor(s): ______________________________________.
16
17 Alternatively, the contents of this file may be used under the terms of the
18 GNU General Public License (the "GPL"), in which case the provisions of the GPL are
19 applicable instead of those above. If you wish to allow use of your version of this
20 file only under the terms of the GPL and not to allow others to use your version
21 of this file under the MPL, indicate your decision by deleting the provisions above
22 and replace them with the notice and other provisions required by the GPL License.
23 If you do not delete the provisions above, a recipient may use your version of
24 this file under either the MPL or the GPL.
25 */
26
27 package ca.uhn.hl7v2.protocol.impl;
28
29 import javax.jms.Connection;
30 import javax.jms.JMSException;
31 import javax.jms.Message;
32 import javax.jms.Queue;
33 import javax.jms.QueueConnection;
34 import javax.jms.QueueReceiver;
35 import javax.jms.QueueSender;
36 import javax.jms.QueueSession;
37 import javax.jms.Session;
38 import javax.jms.TextMessage;
39
40 import ca.uhn.hl7v2.protocol.JMSDestination;
41
42 /**
43 * An implementation of <code>JMSDestination</code> that uses an underlying
44 * Queue.
45 *
46 * @author <a href="mailto:bryan.tripp@uhn.on.ca">Bryan Tripp</a>
47 * @version $Revision: 1.1 $ updated on $Date: 2007-02-19 02:24:26 $ by $Author: jamesagnew $
48 */
49 public class JMSQueueAdapter implements JMSDestination {
50
51 private QueueSession mySendingSession;
52 private QueueSession myReceivingSession;
53 private QueueSender mySender;
54 private QueueReceiver myReceiver;
55 private final QueueConnection myConnection;
56 private final Queue myQueue;
57 private boolean myIsConnected;
58
59 /**
60 * @param theConnection
61 * @param theDestination
62 */
63 public JMSQueueAdapter(QueueConnection theConnection, Queue theDestination) {
64 myConnection = theConnection;
65 myQueue = theDestination;
66 }
67
68 /**
69 * @see ca.uhn.hl7v2.protocol.JMSDestination#getName()
70 */
71 public String getName() throws JMSException {
72 return myQueue.getQueueName();
73 }
74
75 /**
76 * @see ca.uhn.hl7v2.protocol.JMSDestination#createMessage()
77 */
78 public TextMessage createMessage() throws JMSException {
79 return mySendingSession.createTextMessage();
80 }
81
82 /**
83 * @see ca.uhn.hl7v2.protocol.JMSDestination#connect()
84 */
85 public void connect() throws JMSException {
86 boolean transacted = false;
87 int ackMode = Session.AUTO_ACKNOWLEDGE;
88
89 disconnect();
90
91 mySendingSession = myConnection.createQueueSession(transacted, ackMode);
92 mySender = mySendingSession.createSender(myQueue);
93
94 myReceivingSession = myConnection.createQueueSession(transacted, ackMode);
95 myReceiver = myReceivingSession.createReceiver(myQueue);
96
97 myIsConnected = true;
98 }
99
100 /**
101 * @see ca.uhn.hl7v2.protocol.JMSDestination#disconnect()
102 */
103 public void disconnect() throws JMSException {
104 myIsConnected = false;
105 if (mySendingSession != null) {
106 mySendingSession.close();
107 }
108 if (myReceivingSession != null) {
109 myReceivingSession.close();
110 }
111 }
112
113 /**
114 * @see ca.uhn.hl7v2.protocol.JMSDestination#send(javax.jms.Message)
115 */
116 public void send(Message theMessage) throws JMSException {
117 mySender.send(theMessage);
118 }
119
120 /**
121 * @see ca.uhn.hl7v2.protocol.JMSDestination#receive()
122 */
123 public Message receive() throws JMSException {
124 return myReceiver.receive();
125 }
126
127 /**
128 * @see ca.uhn.hl7v2.protocol.JMSDestination#isConnected()
129 */
130 public boolean isConnected() {
131 return myIsConnected;
132 }
133
134 /**
135 * @see ca.uhn.hl7v2.protocol.JMSDestination#getConnection()
136 */
137 public Connection getConnection() {
138 return myConnection;
139 }
140
141 }