Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
JMSTopicAdapter |
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| 1.2;1.2 |
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 "JMSTopicAdapter.java". Description: | |
10 | "An implementation of JMSDestination that uses an underlying Topic." | |
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.Session; | |
33 | import javax.jms.TextMessage; | |
34 | import javax.jms.Topic; | |
35 | import javax.jms.TopicConnection; | |
36 | import javax.jms.TopicPublisher; | |
37 | import javax.jms.TopicSession; | |
38 | import javax.jms.TopicSubscriber; | |
39 | ||
40 | import ca.uhn.hl7v2.protocol.JMSDestination; | |
41 | ||
42 | /** | |
43 | * An implementation of <code>JMSDestination</code> that uses an underlying | |
44 | * Topic. | |
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 JMSTopicAdapter implements JMSDestination { | |
50 | ||
51 | private TopicSession mySendingSession; | |
52 | private TopicSession myReceivingSession; | |
53 | private TopicPublisher myPublisher; | |
54 | private TopicSubscriber mySubscriber; | |
55 | private TopicConnection myConnection; | |
56 | private Topic myTopic; | |
57 | private boolean myIsConnected; | |
58 | ||
59 | /** | |
60 | * @param theConnection the connection over which messages are written and read | |
61 | * @param theDestination the destination to/from which messages are written/read | |
62 | */ | |
63 | 0 | public JMSTopicAdapter(TopicConnection theConnection, Topic theDestination) { |
64 | 0 | myConnection = theConnection; |
65 | 0 | myTopic = theDestination; |
66 | 0 | } |
67 | ||
68 | /** | |
69 | * @param theConnection the connection over which messages are written and read | |
70 | * @param theDestination the destination to/from which messages are written/read | |
71 | * @param theMessageSelector a JMS message selector which restricts the inbound | |
72 | * messages that are received (see JMS docs) | |
73 | */ | |
74 | 0 | public JMSTopicAdapter(TopicConnection theConnection, Topic theDestination, String theMessageSelector) { |
75 | 0 | myConnection = theConnection; |
76 | 0 | myTopic = theDestination; |
77 | 0 | } |
78 | ||
79 | /** | |
80 | * @see ca.uhn.hl7v2.protocol.JMSDestination#getName() | |
81 | */ | |
82 | public String getName() throws JMSException { | |
83 | 0 | return myTopic.getTopicName(); |
84 | } | |
85 | ||
86 | /** | |
87 | * @see ca.uhn.hl7v2.protocol.JMSDestination#createMessage() | |
88 | */ | |
89 | public TextMessage createMessage() throws JMSException { | |
90 | 0 | return mySendingSession.createTextMessage(); |
91 | } | |
92 | ||
93 | /** | |
94 | * @see ca.uhn.hl7v2.protocol.JMSDestination#connect() | |
95 | */ | |
96 | public void connect() throws JMSException { | |
97 | 0 | boolean transacted = false; |
98 | 0 | int ackMode = Session.AUTO_ACKNOWLEDGE; |
99 | ||
100 | 0 | disconnect(); |
101 | ||
102 | 0 | mySendingSession = myConnection.createTopicSession(transacted, ackMode); |
103 | 0 | myPublisher = mySendingSession.createPublisher(myTopic); |
104 | ||
105 | 0 | myReceivingSession = myConnection.createTopicSession(transacted, ackMode); |
106 | 0 | mySubscriber = myReceivingSession.createSubscriber(myTopic); |
107 | ||
108 | 0 | myIsConnected = true; |
109 | 0 | } |
110 | ||
111 | /** | |
112 | * @see ca.uhn.hl7v2.protocol.JMSDestination#disconnect() | |
113 | */ | |
114 | public void disconnect() throws JMSException { | |
115 | 0 | myIsConnected = false; |
116 | ||
117 | 0 | if (mySendingSession != null) { |
118 | 0 | mySendingSession.close(); |
119 | } | |
120 | 0 | if (myReceivingSession != null) { |
121 | 0 | myReceivingSession.close(); |
122 | } | |
123 | 0 | } |
124 | ||
125 | /** | |
126 | * @see ca.uhn.hl7v2.protocol.JMSDestination#isConnected() | |
127 | */ | |
128 | public boolean isConnected() { | |
129 | 0 | return myIsConnected; |
130 | } | |
131 | ||
132 | /** | |
133 | * @see ca.uhn.hl7v2.protocol.JMSDestination#send(javax.jms.Message) | |
134 | */ | |
135 | public void send(Message theMessage) throws JMSException { | |
136 | 0 | myPublisher.publish(theMessage); |
137 | 0 | } |
138 | ||
139 | /** | |
140 | * @see ca.uhn.hl7v2.protocol.JMSDestination#receive() | |
141 | */ | |
142 | public Message receive() throws JMSException { | |
143 | 0 | return mySubscriber.receive(); |
144 | } | |
145 | ||
146 | /** | |
147 | * @see ca.uhn.hl7v2.protocol.JMSDestination#getConnection() | |
148 | */ | |
149 | public Connection getConnection() { | |
150 | 0 | return myConnection; |
151 | } | |
152 | ||
153 | } |