DoWithContextClassLoader


1   /*
2    *  SSL-Explorer
3    *
4    *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
5    *
6    *  This program is free software; you can redistribute it and/or
7    *  modify it under the terms of the GNU General Public License
8    *  as published by the Free Software Foundation; either version 2 of
9    *  the License, or (at your option) any later version.
10   *  This program is distributed in the hope that it will be useful,
11   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   *  GNU General Public License for more details.
14   *
15   *  You should have received a copy of the GNU General Public
16   *  License along with this program; if not, write to the Free Software
17   *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18   */
19              
20  package com.sslexplorer.core;
21  
22  
23  public abstract class DoWithContextClassLoader extends Thread   {
24      
25      private Object   value;
26      private Exception   exception;
27      
28      public DoWithContextClassLoader(ClassLoader   classLoader)  {
29          super("DoWithContextClassLoader-" + classLoader.getClass().getName());
30          setContextClassLoader(classLoader);
31      }   
32      
33      public Object   doWith() throws Exception   {
34          start();
35          join();
36          if(exception != null) {
37              throw exception;
38          }
39          return value;
40      }
41      
42      public void run() {
43          try {
44              value = doRun();
45          }
46          catch(Exception   e) {
47              exception = e;
48          }
49          catch(Throwable   t) {
50              t.printStackTrace();
51          }
52      }
53      
54      public abstract Object   doRun() throws Exception  ;
55  }
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