JndiTypeStrategy


1   /*
2    * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3    *
4    * This file is part of Resin(R) Open Source
5    *
6    * Each copy or derived work must preserve the copyright notice and this
7    * notice unmodified.
8    *
9    * Resin Open Source is free software; you can redistribute it and/or modify
10   * it under the terms of the GNU General Public License as published by
11   * the Free Software Foundation; either version 2 of the License, or
12   * (at your option) any later version.
13   *
14   * Resin Open Source is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17   * of NON-INFRINGEMENT.  See the GNU General Public License for more
18   * details.
19   *
20   * You should have received a copy of the GNU General Public License
21   * along with Resin Open Source; if not, write to the
22   *   Free SoftwareFoundation, Inc.
23   *   59 Temple Place, Suite 330
24   *   Boston, MA 02111-1307  USA
25   *
26   * @author Scott Ferguson
27   */
28  
29  package com.caucho.config.types;
30  
31  import com.caucho.config.NodeBuilder;
32  import com.caucho.config.TypeStrategy;
33  
34  import org.w3c.dom.Node  ;
35  
36  import javax.naming.InitialContext  ;
37  
38  /**
39   * JNDI lookup.
40   */
41  public class JndiTypeStrategy extends TypeStrategy  {
42    /**
43     * Returns the type's configured value
44     *
45     * @param builder the context builder
46     * @param node the configuration node
47     * @param parent
48     */
49    public Object   configure(NodeBuilder builder, Node   node, Object   parent)
50      throws Exception  
51    {
52      Object   jndiObject = builder.configureObject(node, parent);
53  
54      if (! (jndiObject instanceof String  ))
55        return jndiObject;
56  
57      String   jndiPath = (String  ) jndiObject;
58      
59      if (jndiPath.startsWith("java:comp/"))
60        return new InitialContext  ().lookup(jndiPath);
61      else
62        return new InitialContext  ().lookup("java:comp/env/" + jndiPath);
63    }
64  }
65
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