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: BytesMessageHandler.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 javax.jms.BytesMessage;
49 import javax.jms.JMSException;
50 import javax.jms.Message;
51
52 import org.exolab.jms.message.BytesMessageImpl;
53 import org.exolab.jms.persistence.PersistenceException;
54
55
56 /***
57 * Handler for messages of type <code>javax.jms.TextMessage</code>.
58 *
59 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
60 * @version $Revision: 1.2 $ $Date: 2005/10/20 14:07:03 $
61 */
62 class BytesMessageHandler extends AbstractMessageHandler {
63
64 /***
65 * Construct a new <code>BytesMessageHandle</code>.
66 *
67 * @param destinations the destination store
68 * @param connection the database connection
69 */
70 public BytesMessageHandler(DestinationStore destinations,
71 Connection connection) {
72 super(destinations, connection);
73 }
74
75 /***
76 * Returns the type of message that this handler supports.
77 *
78 * @return the type of message
79 */
80 protected String getType() {
81 return "BytesMessage";
82 }
83
84 /***
85 * Create a new message.
86 *
87 * @return a new message
88 * @throws JMSException for any JMS error
89 */
90 protected Message newMessage() throws JMSException {
91 return new BytesMessageImpl();
92 }
93
94 /***
95 * Populate the message body.
96 *
97 * @param body the message body
98 * @param message the message to populate
99 * @throws JMSException for any JMS error
100 * @throws PersistenceException for any persistence error
101 */
102 protected void setBody(Object body, Message message) throws JMSException,
103 PersistenceException {
104 if (body != null && !(body instanceof byte[])) {
105 throw new JMSException(
106 "Expected byte[] body for BytesMessage with JMSMessageID="
107 + message.getJMSMessageID()
108 + " but got type "
109 + body.getClass().getName());
110 }
111 BytesMessage bytes = (BytesMessage) message;
112 bytes.writeBytes((byte[]) body);
113 }
114
115 /***
116 * Returns the body of the message.
117 *
118 * @param message the message
119 * @return the body of the message
120 * @throws JMSException for any JMS error
121 */
122 protected Object getBody(Message message) throws JMSException {
123 BytesMessage bytes = (BytesMessage) message;
124 bytes.reset();
125 long length = bytes.getBodyLength();
126 if (length > Integer.MAX_VALUE) {
127 throw new JMSException("Can't handle BytesMessage, JMSMessageID="
128 + message.getJMSMessageID()
129 + ", length=" + length
130 + " - message too large ");
131 }
132 byte[] result = new byte[(int) length];
133 if (bytes.readBytes(result) != result.length) {
134 throw new JMSException("Failed to read BytesMessage");
135 }
136 return result;
137 }
138
139 }