MyFacesObjectInputStream


1   /*
2    * Copyright 2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.myfaces.util;
17  
18  import java.io.IOException  ;
19  import java.io.InputStream  ;
20  import java.io.ObjectInputStream  ;
21  import java.io.ObjectStreamClass  ;
22  
23  /**
24   * Tried to deploy v0.4.2 on JBoss 3.2.1 and had a classloading problem again.
25   * The problem seemed to be with JspInfo, line 98. We are using an
26   * ObjectInputStream Class, which then cannot find the classes to deserialize
27   * the input stream.  The solution appears to be to subclass ObjectInputStream
28   * (eg. CustomInputStream), and specify a different class-loading mechanism.
29   *
30   * @author Robert Gothan <robert@funkyjazz.net> (latest modification by $Author: matze $)
31   * @version $Revision: 1.9 $ $Date: 2004/10/13 11:51:01 $
32   */
33  public class MyFacesObjectInputStream
34      extends ObjectInputStream  
35  {
36      public MyFacesObjectInputStream(InputStream   in) throws IOException  
37      {
38          super(in);
39      }
40  
41      protected Class   resolveClass(ObjectStreamClass   desc)
42          throws ClassNotFoundException  , IOException  
43      {
44          try
45          {
46              return ClassUtils.classForName(desc.getName());
47          }
48          catch (ClassNotFoundException   e)
49          {
50              return super.resolveClass(desc);
51          }
52      }
53  }
54
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