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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.osgi.boot.internal.jsp;
20  
21  import java.net.URL;
22  
23  /**
24   * Add a classloader to the
25   * org.apache.jasper.compiler.TldLocatableURLClassloader. Hopefuly not
26   * necessary: still experimenting.
27   * 
28   * @see TldLocatableURLClassloader
29   */
30  public class TldLocatableURLClassloaderWithInsertedJettyClassloader extends TldLocatableURLClassloader
31  {
32  
33      private ClassLoader _internalClassLoader;
34  
35      /**
36       * 
37       * @param osgiClassLoaderParent
38       *            The parent classloader
39       * @param internalClassLoader
40       *            The classloader that will be at the same level than the
41       *            jarsWithTldsInside
42       * @param jarsWithTldsInside
43       *            jars that are scanned for tld files.
44       */
45      public TldLocatableURLClassloaderWithInsertedJettyClassloader(ClassLoader osgiClassLoaderParent, ClassLoader internalClassLoader, URL[] jarsWithTldsInside)
46      {
47          super(osgiClassLoaderParent,jarsWithTldsInside);
48          _internalClassLoader = internalClassLoader;
49      }
50  
51      protected Class<?> findClass(String name) throws ClassNotFoundException
52      {
53          try
54          {
55              return super.findClass(name);
56          }
57          catch (ClassNotFoundException cne)
58          {
59              if (_internalClassLoader != null)
60              {
61                  return _internalClassLoader.loadClass(name);
62              }
63              else
64              {
65                  throw cne;
66              }
67          }
68      }
69  }