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Java > Open Source Codes > org > exolab > jms > net > vm > VMManagedConnectionFactory


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 2003-2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42  *
43  * $Id: VMManagedConnectionFactory.java,v 1.2 2005/04/17 14:01:31 tanderson Exp $
44  */
45 package org.exolab.jms.net.vm;
46
47 import java.security.Principal JavaDoc;
48 import java.util.Iterator JavaDoc;
49 import java.util.List JavaDoc;
50
51 import org.exolab.jms.net.connector.Authenticator;
52 import org.exolab.jms.net.connector.ConnectionFactory;
53 import org.exolab.jms.net.connector.ConnectionManager;
54 import org.exolab.jms.net.connector.ConnectionRequestInfo;
55 import org.exolab.jms.net.connector.ManagedConnection;
56 import org.exolab.jms.net.connector.ManagedConnectionAcceptor;
57 import org.exolab.jms.net.connector.ManagedConnectionFactory;
58 import org.exolab.jms.net.connector.ResourceException;
59 import org.exolab.jms.net.connector.URIRequestInfo;
60 import org.exolab.jms.net.uri.URI;
61
62
63 /**
64  * A factory for {@link VMConnectionFactory}, {@link VMManagedConnection} and
65  * {@link VMManagedConnectionAcceptor} instances.
66  *
67  * @author <a HREF="mailto:tma@netspace.net.au">Tim Anderson</a>
68  * @version $Revision: 1.2 $ $Date: 2005/04/17 14:01:31 $
69  */
70 public class VMManagedConnectionFactory implements ManagedConnectionFactory {
71
72     /**
73      * Creates a new connection factory.
74      *
75      * @param manager the connection manager
76      * @return a new connection factory
77      * @throws ResourceException if the factory cannot be created
78      */
79     public ConnectionFactory createConnectionFactory(ConnectionManager manager)
80             throws ResourceException {
81         return new VMConnectionFactory(this, manager);
82     }
83
84     /**
85      * Creates a new connection.
86      *
87      * @param principal the security principal
88      * @param info the connection request info
89      * @return a new connection
90      * @throws ResourceException if a connection cannot be established
91      */
92     public ManagedConnection createManagedConnection(Principal JavaDoc principal,
93                                                      ConnectionRequestInfo info)
94             throws ResourceException {
95         if (!(info instanceof URIRequestInfo)) {
96             throw new ResourceException("Argument 'info' must be of type "
97                                         + URIRequestInfo.class.getName());
98         }
99
100         return new VMManagedConnection(principal, (URIRequestInfo) info);
101     }
102
103     /**
104      * Creates an acceptor for connections.
105      *
106      * @param authenticator authenticates incoming connections
107      * @param info the connection request info
108      * @return a new connection acceptor
109      * @throws ResourceException if an acceptor cannot be created
110      */
111     public ManagedConnectionAcceptor createManagedConnectionAcceptor(
112             Authenticator authenticator, ConnectionRequestInfo info)
113             throws ResourceException {
114         if (!(info instanceof URIRequestInfo)) {
115             throw new ResourceException("Argument 'info' must be of type "
116                                         + URIRequestInfo.class.getName());
117         }
118         return new VMManagedConnectionAcceptor(authenticator,
119                                                (URIRequestInfo) info);
120     }
121
122     /**
123      * Returns a matched connection from the candidate set of connections.
124      *
125      * @param connections the candidate connections
126      * @param principal the security principal
127      * @param info the connection request info
128      * @return the first acceptable match, or <code>null</code> if none is
129      * found
130      * @throws ResourceException for any error
131      */
132     public ManagedConnection matchManagedConnections(List JavaDoc connections,
133                                                      Principal JavaDoc principal,
134                                                      ConnectionRequestInfo info)
135             throws ResourceException {
136         ManagedConnection result = null;
137
138         if (info instanceof URIRequestInfo) {
139             URIRequestInfo requestInfo = (URIRequestInfo) info;
140             URI uri = requestInfo.getURI();
141             Iterator JavaDoc iterator = connections.iterator();
142             while (iterator.hasNext()) {
143                 VMManagedConnection connection =
144                         (VMManagedConnection) iterator.next();
145                 if (connection.hasPrincipal(principal) &&
146                     uri.equals(connection.getRemoteURI())) {
147                     result = connection;
148                     break;
149                 }
150             }
151         }
152         return result;
153     }
154
155     /**
156      * Returns a matched connection acceptor from the candidate set of
157      * acceptors.
158      *
159      * @param acceptors the candidate connection acceptors
160      * @param info the connection request info
161      * @return the first acceptable match, or <code>null</code> if none is
162      * found
163      * @throws ResourceException for any error
164      */
165     public ManagedConnectionAcceptor matchManagedConnectionAcceptors(
166             List JavaDoc acceptors, ConnectionRequestInfo info)
167             throws ResourceException {
168         ManagedConnectionAcceptor result = null;
169
170         if (info instanceof URIRequestInfo) {
171             URIRequestInfo requestInfo = (URIRequestInfo) info;
172             URI uri = requestInfo.getURI();
173             Iterator JavaDoc iterator = acceptors.iterator();
174             while (iterator.hasNext()) {
175                 VMManagedConnectionAcceptor acceptor =
176                         (VMManagedConnectionAcceptor) iterator.next();
177                 if (uri.equals(acceptor.getURI())) {
178                     result = acceptor;
179                     break;
180                 }
181             }
182         }
183         return result;
184     }
185
186 }
187
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