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Java > Open Source Codes > org > exolab > jms > net > rmi > RMIManagedConnectionFactory


1 /**
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3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
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8  * copy of this document.
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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
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16  * products derived from this Software without prior written
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18  * please contact info@exolab.org.
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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.
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25  * 5. Due credit should be given to the Exolab Project
26  * (http://www.exolab.org/).
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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: RMIManagedConnectionFactory.java,v 1.3 2005/05/27 13:58:02 tanderson Exp $
44  */
45 package org.exolab.jms.net.rmi;
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.uri.URI;
60 import org.exolab.jms.net.uri.URIHelper;
61
62
63 /**
64  * A factory for {@link RMIConnectionFactory}, {@link RMIManagedConnection} and
65  * {@link RMIManagedConnectionAcceptor} instances.
66  *
67  * @author <a HREF="mailto:tma@netspace.net.au">Tim Anderson</a>
68  * @version $Revision: 1.3 $ $Date: 2005/05/27 13:58:02 $
69  */
70 public class RMIManagedConnectionFactory 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 RMIConnectionFactory(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 RMIRequestInfo)) {
96             throw new ResourceException("Argument 'info' must be of type "
97                                         + RMIRequestInfo.class.getName());
98         }
99         return new RMIManagedConnection(principal, (RMIRequestInfo) info);
100     }
101
102     /**
103      * Creates an acceptor for connections.
104      *
105      * @param authenticator authenticates incoming connections
106      * @param info the connection request info
107      * @return a new connection acceptor
108      * @throws ResourceException if an acceptor cannot be created
109      */
110     public ManagedConnectionAcceptor createManagedConnectionAcceptor(
111             Authenticator authenticator, ConnectionRequestInfo info)
112             throws ResourceException {
113
114         if (!(info instanceof RMIRequestInfo)) {
115             throw new ResourceException("Argument 'info' must be of type "
116                                         + RMIRequestInfo.class.getName());
117         }
118         RMIRequestInfo rmiInfo = (RMIRequestInfo) info;
119         return new RMIManagedConnectionAcceptor(authenticator, rmiInfo);
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 RMIRequestInfo) {
139             RMIRequestInfo requestInfo = (RMIRequestInfo) info;
140             URI uri = URIHelper.convertHostToAddress(requestInfo.getURI());
141
142             Iterator JavaDoc iterator = connections.iterator();
143             while (iterator.hasNext()) {
144                 RMIManagedConnection connection =
145                         (RMIManagedConnection) iterator.next();
146                 if (connection.hasPrincipal(principal)
147                         && uri.equals(connection.getRemoteURI())) {
148                     result = connection;
149                     break;
150                 }
151             }
152         }
153         return result;
154     }
155
156     /**
157      * Returns a matched connection acceptor from the candidate set of
158      * acceptors.
159      *
160      * @param acceptors the candidate connection acceptors
161      * @param info the connection request info
162      * @return the first acceptable match, or <code>null</code> if none is
163      * found
164      * @throws ResourceException for any error
165      */
166     public ManagedConnectionAcceptor matchManagedConnectionAcceptors(
167             List JavaDoc acceptors, ConnectionRequestInfo info)
168             throws ResourceException {
169         ManagedConnectionAcceptor result = null;
170
171         if (info instanceof RMIRequestInfo) {
172             RMIRequestInfo requestInfo = (RMIRequestInfo) info;
173             URI uri = URIHelper.convertHostToAddress(requestInfo.getURI());
174             Iterator JavaDoc iterator = acceptors.iterator();
175             while (iterator.hasNext()) {
176                 RMIManagedConnectionAcceptor acceptor =
177                         (RMIManagedConnectionAcceptor) iterator.next();
178                 if (uri.equals(acceptor.getURI())) {
179                     result = acceptor;
180                     break;
181                 }
182             }
183         }
184         return result;
185     }
186
187 }
188
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