CtxClassLoaderObjectInputStream


1   /**
2    * EasyBeans
3    * Copyright (C) 2006 Bull S.A.S.
4    * Contact: easybeans@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   * --------------------------------------------------------------------------
22   * $Id: CtxClassLoaderObjectInputStream.java 356 2006-04-18 16:26:38Z benoitf $
23   * --------------------------------------------------------------------------
24   */
25  
26  package org.objectweb.easybeans.util.marshalling;
27  
28  import java.io.IOException  ;
29  import java.io.InputStream  ;
30  import java.io.ObjectInputStream  ;
31  import java.io.ObjectStreamClass  ;
32  
33  /**
34   * Reader which set the context classloader when recreating the object.
35   * @author Florent Benoit
36   */
37  public class CtxClassLoaderObjectInputStream extends ObjectInputStream   {
38  
39      /**
40       * This inputstream reader needs an input stream for its constructor.
41       * @param inputStream input stream containing bytes
42       * @throws IOException if super class fails
43       */
44      public CtxClassLoaderObjectInputStream(final InputStream   inputStream) throws IOException   {
45          super(inputStream);
46      }
47  
48      /**
49       * Load the local class equivalent of the specified stream class
50       * description.
51       * @param   desc an instance of class <code>ObjectStreamClass</code>
52       * @return  a <code>Class</code> object corresponding to <code>desc</code>
53       * @throws  IOException any of the usual input/output exceptions
54       * @throws  ClassNotFoundException if class of a serialized object cannot
55       *      be found
56       */
57      @Override  
58      protected Class  <?> resolveClass(final ObjectStreamClass   desc)
59      throws IOException  , ClassNotFoundException   {
60          return Thread.currentThread().getContextClassLoader().loadClass(desc.getName());
61      }
62  }
63
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