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Java > Open Source Codes > org > jnp > interfaces > jnp > jnpURLContextFactory


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jnp.interfaces.jnp;
23
24 import java.util.Hashtable JavaDoc;
25 import javax.naming.*;
26 import javax.naming.spi.*;
27
28 import org.jnp.interfaces.NamingContext;
29
30 /** The URL context factory for jnp: style URLs.
31  *
32  * @see <related>
33  * @author oberg
34  * @author Scott_Stark@displayscape.com
35  * @version $Revision: 37459 $
36  */
37 public class jnpURLContextFactory
38    implements ObjectFactory
39 {
40    // Constants -----------------------------------------------------
41
42    // Attributes ----------------------------------------------------
43
44    // Static --------------------------------------------------------
45
46    // Constructors --------------------------------------------------
47
48    // Public --------------------------------------------------------
49
50    // ObjectFactory implementation ----------------------------------
51 public Object JavaDoc getObjectInstance(Object JavaDoc obj,
52                                 Name name,
53                                 Context nameCtx,
54                                 Hashtable JavaDoc environment)
55                          throws Exception JavaDoc
56    {
57       if (obj == null)
58       {
59           Context urlContext = new NamingContext(environment, name, null);
60           return urlContext;
61       }
62       else if (obj instanceof String JavaDoc)
63       {
64          String JavaDoc url = (String JavaDoc)obj;
65          Context ctx = new NamingContext(environment, name, null);
66          
67          Name n = ctx.getNameParser(name).parse(url.substring(url.indexOf(":")+1));
68          if (n.size() >= 3)
69          {
70             // Provider URL?
71 if (n.get(0).toString().equals("") &&
72                 n.get(1).toString().equals(""))
73             {
74                ctx.addToEnvironment(Context.PROVIDER_URL, n.get(2));
75             }
76          }
77          return ctx;
78       } else
79       {
80          return null;
81       }
82    }
83     
84    // Y overrides ---------------------------------------------------
85
86    // Package protected ---------------------------------------------
87
88    // Protected -----------------------------------------------------
89
90    // Private -------------------------------------------------------
91
92    // Inner classes -------------------------------------------------
93 }
94
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