SimpleWebappClassLoader


1   /**
2    * JOnAS: Java(TM) Open Application Server
3    * Copyright (C) 1999 Bull S.A.
4    * Contact: jonas-team@objectweb.org
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public
8    * License as published by the Free Software Foundation; either
9    * version 2.1 of the License, or any later version.
10   *
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   *
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19   * USA
20   *
21   * Initial developer(s): Guillaume SAUTHIER
22   * --------------------------------------------------------------------------
23   * $Id: SimpleWebappClassLoader.java,v 1.4 2004/04/19 13:49:09 sauthieg Exp $
24   * --------------------------------------------------------------------------
25   */
26  
27  package org.objectweb.jonas_lib.loader;
28  
29  import java.io.IOException  ;
30  import java.net.URL  ;
31  
32  /**
33   * ClassLoader specialized for WebApps. It add only the WEB-INF/wsdl/ directory
34   * of the war in the URL repository. Used because Catalina doesn't automatically
35   * add this resources in its own ClassLoader
36   *
37   * @author Guillaume Sauthier
38   */
39  public class SimpleWebappClassLoader extends AbsModuleClassLoader {
40  
41      /** WSDL directory in a Web module */
42      private static final String   WSDL_DIRECTORY = "WEB-INF/wsdl/";
43  
44      /**
45       * Create a new SimpleWebappClassLoader with default parent ClassLoader
46       *
47       * @param module an URL of Web file
48       *
49       * @throws IOException if creation fails
50       */
51      public SimpleWebappClassLoader(URL   module) throws IOException   {
52          super(new URL  [] {module});
53      }
54  
55      /**
56       * Create a new SimpleWebappClassLoader with specified parent ClassLoader
57       *
58       * @param module an URL of Web file
59       * @param parent the parent ClassLoader
60       *
61       * @throws IOException if creation fails
62       */
63      public SimpleWebappClassLoader(URL   module, ClassLoader   parent) throws IOException   {
64          super(new URL  [] {module}, parent);
65      }
66  
67      /**
68       * Add the WEB-INF/wsdl/ directory in the ClassLoader.
69       *
70       * @throws IOException if META-INF/wsdl and ejb-jar root directories cannot
71       *         be inserted in loader
72       */
73      protected void init() throws IOException   {
74          super.init();
75          addInRepository(WSDL_DIRECTORY);
76          addInRepository("");
77      }
78  }
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