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Java > Open Source Codes > org > exolab > jms > client > JmsDestinationFactory


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 2001,2003 (C) Exoffice Technologies Inc. All Rights Reserved.
42  *
43  * $Id: JmsDestinationFactory.java,v 1.1 2004/11/26 01:50:40 tanderson Exp $
44  *
45  * Date Author Changes
46  * 06/14/2001 jima Created
47  */
48 package org.exolab.jms.client;
49
50
51 import java.util.Hashtable JavaDoc;
52
53 import javax.naming.Context JavaDoc;
54 import javax.naming.Name JavaDoc;
55 import javax.naming.Reference JavaDoc;
56 import javax.naming.StringRefAddr JavaDoc;
57 import javax.naming.spi.ObjectFactory JavaDoc;
58
59
60 /**
61  * This factory object implements the ObjectFactory interface and is used
62  * to resolve a reference to an administered destination. This is part
63  * of our JNDI support.
64  * <p>
65  * All {@link JmsDestination} objects support the java.naming.Referenceable
66  * interface and make explicit reference to this factory
67  *
68  * @version $Revision: 1.1 $ $Date: 2004/11/26 01:50:40 $
69  * @author <a HREF="mailto:jima@exoffice.com">Jim Alateras</a>
70  * @see JmsTopic
71  * @see JmsQueue
72  */
73 public class JmsDestinationFactory
74     implements ObjectFactory JavaDoc {
75
76     // implementation of ObjectFactory.getObjectInstance
77 public Object JavaDoc getObjectInstance(Object JavaDoc object, Name JavaDoc name, Context JavaDoc context,
78                                     Hashtable JavaDoc env) throws Exception JavaDoc {
79
80         Object JavaDoc result = null;
81
82         if (object instanceof Reference JavaDoc) {
83             Reference JavaDoc ref = (Reference JavaDoc) object;
84             String JavaDoc className = ref.getClassName();
85             StringRefAddr JavaDoc nameref = (StringRefAddr JavaDoc) ref.get("name");
86             StringRefAddr JavaDoc persistref = (StringRefAddr JavaDoc) ref.get("persistent");
87
88             if (nameref != null && persistref != null) {
89                 String JavaDoc destination = (String JavaDoc) nameref.getContent();
90                 String JavaDoc persist = (String JavaDoc) persistref.getContent();
91
92                 if (className.equals(JmsQueue.class.getName())) {
93                     JmsQueue queue = new JmsQueue(destination);
94                     queue.setPersistent(new Boolean JavaDoc(persist).booleanValue());
95                     result = queue;
96                 } else if (className.equals(JmsTopic.class.getName())) {
97                     JmsTopic topic = new JmsTopic(destination);
98                     topic.setPersistent(new Boolean JavaDoc(persist).booleanValue());
99                     result = topic;
100                 } else {
101                     throw new Exception JavaDoc(
102                         "This factory cannot create objects of type "
103                         + className);
104                 }
105             }
106         }
107
108         return result;
109     }
110 }
111
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