KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > exolab > jms > net > socket > SocketManagedConnectionFactory


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 2004-2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42  *
43  * $Id: SocketManagedConnectionFactory.java,v 1.5 2005/04/19 12:20:52 tanderson Exp $
44  */
45 package org.exolab.jms.net.socket;
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.ConnectionRequestInfo;
52 import org.exolab.jms.net.connector.ManagedConnection;
53 import org.exolab.jms.net.connector.ManagedConnectionAcceptor;
54 import org.exolab.jms.net.connector.ManagedConnectionFactory;
55 import org.exolab.jms.net.connector.ResourceException;
56 import org.exolab.jms.net.uri.URI;
57 import org.exolab.jms.net.uri.URIHelper;
58
59
60 /**
61  * A factory for concrete {@link SocketManagedConnection} and {@link
62  * SocketManagedConnectionAcceptor} instances.
63  *
64  * @author <a HREF="mailto:tma@netspace.net.au">Tim Anderson</a>
65  * @version $Revision: 1.5 $ $Date: 2005/04/19 12:20:52 $
66  */
67 public abstract class SocketManagedConnectionFactory
68         implements ManagedConnectionFactory {
69
70     /**
71      * Returns a matched connection from the candidate set of connections.
72      *
73      * @param connections the candidate connections
74      * @param principal the security principal
75      * @param info the connection request info
76      * @return the first acceptable match, or <code>null</code> if none is
77      * found
78      * @throws ResourceException for any error
79      */
80     public ManagedConnection matchManagedConnections(List JavaDoc connections,
81                                                      Principal JavaDoc principal,
82                                                      ConnectionRequestInfo info)
83             throws ResourceException {
84         ManagedConnection result = null;
85
86         if (info instanceof SocketRequestInfo) {
87             SocketRequestInfo requestInfo = (SocketRequestInfo) info;
88             URI uri = URIHelper.convertHostToAddress(requestInfo.getURI());
89             URI altURI = requestInfo.getAlternativeURI();
90             if (altURI != null) {
91                 altURI = URIHelper.convertHostToAddress(altURI);
92             }
93
94             Iterator JavaDoc iterator = connections.iterator();
95             while (iterator.hasNext()) {
96                 SocketManagedConnection connection =
97                         (SocketManagedConnection) iterator.next();
98                 if (connection.hasPrincipal(principal)) {
99                     final URI remote = connection.getRemoteURI();
100                     final URI local = connection.getLocalURI();
101                     if (remote.equals(uri) || local.equals(uri)
102                        || remote.equals(altURI) || local.equals(altURI)) {
103                         result = connection;
104                         break;
105                     }
106                 }
107             }
108         }
109         return result;
110     }
111
112     /**
113      * Returns a matched connection acceptor from the candidate set of
114      * acceptors.
115      *
116      * @param acceptors the candidate connection acceptors
117      * @param info the connection request info
118      * @return the first acceptable match, or <code>null</code> if none is
119      * found
120      * @throws ResourceException for any error
121      */
122     public ManagedConnectionAcceptor matchManagedConnectionAcceptors(
123             List JavaDoc acceptors, ConnectionRequestInfo info)
124             throws ResourceException {
125         ManagedConnectionAcceptor result = null;
126
127         if (info instanceof SocketRequestInfo) {
128             Iterator JavaDoc iterator = acceptors.iterator();
129             while (iterator.hasNext()) {
130                 SocketManagedConnectionAcceptor acceptor =
131                         (SocketManagedConnectionAcceptor) iterator.next();
132                 if (info.equals(acceptor.getRequestInfo())) {
133                     result = acceptor;
134                     break;
135                 }
136             }
137         }
138         return result;
139     }
140 }
141
Popular Tags