1 /***
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Exoffice Technologies. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Exoffice Technologies. Exolab is a registered
23 * trademark of Exoffice Technologies.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: StreamMessageHandler.java,v 1.2 2005/10/20 14:07:03 tanderson Exp $
44 */
45 package org.exolab.jms.tools.migration.proxy;
46
47 import java.sql.Connection;
48 import java.util.ArrayList;
49 import java.util.Iterator;
50 import java.util.List;
51 import javax.jms.JMSException;
52 import javax.jms.Message;
53 import javax.jms.MessageEOFException;
54 import javax.jms.StreamMessage;
55
56 import org.exolab.jms.message.StreamMessageImpl;
57 import org.exolab.jms.persistence.PersistenceException;
58
59
60 /***
61 * Handler for messages of type <code>javax.jms.StreamMessage</code>.
62 *
63 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
64 * @version $Revision: 1.2 $ $Date: 2005/10/20 14:07:03 $
65 */
66 class StreamMessageHandler extends AbstractMessageHandler {
67
68 /***
69 * Construct a new <code>StreamMessageHandler</code>.
70 *
71 * @param destinations the destination store
72 * @param connection the database connection
73 */
74 public StreamMessageHandler(DestinationStore destinations,
75 Connection connection) {
76 super(destinations, connection);
77 }
78
79 /***
80 * Returns the type of message that this handler supports.
81 *
82 * @return the type of message
83 */
84 protected String getType() {
85 return "StreamMessage";
86 }
87
88 /***
89 * Create a new message.
90 *
91 * @return a new message
92 * @throws JMSException for any JMS error
93 */
94 protected Message newMessage() throws JMSException {
95 return new StreamMessageImpl();
96 }
97
98 /***
99 * Populate the message body.
100 *
101 * @param body the message body
102 * @param message the message to populate
103 * @throws JMSException for any JMS error
104 * @throws PersistenceException for any persistence error
105 */
106 protected void setBody(Object body, Message message) throws JMSException,
107 PersistenceException {
108 if (body == null) {
109 throw new JMSException(
110 "Expected non-null body for StreamMessage "
111 + "with JMSMessageID=" + message.getJMSMessageID());
112 }
113 if (!(body instanceof List)) {
114 throw new JMSException(
115 "Expected List body for StreamMessage with JMSMessageID="
116 + message.getJMSMessageID()
117 + " but got type " + body.getClass().getName());
118 }
119 StreamMessage msg = (StreamMessage) message;
120 List list = (List) body;
121 for (Iterator i = list.iterator(); i.hasNext();) {
122 Object value = i.next();
123 msg.writeObject(value);
124 }
125 }
126
127 /***
128 * Returns the body of the message.
129 *
130 * @param message the message
131 * @return the body of the message
132 * @throws JMSException for any JMS error
133 */
134 protected Object getBody(Message message) throws JMSException {
135 StreamMessage msg = (StreamMessage) message;
136 msg.reset();
137 List result = new ArrayList();
138 while (true) {
139 try {
140 Object value = msg.readObject();
141 result.add(value);
142 } catch (MessageEOFException exception) {
143 break;
144 }
145 }
146 return result;
147 }
148
149 }