UnmarshallMBean


1   /*
2    * Copyright (c) 1998-2002 Caucho Technology -- all rights reserved
3    *
4    * This file is part of Resin(R) Open Source
5    *
6    * Each copy or derived work must preserve the copyright notice and this
7    * notice unmodified.
8    *
9    * Resin Open Source is free software; you can redistribute it and/or modify
10   * it under the terms of the GNU General Public License as published by
11   * the Free Software Foundation; either version 2 of the License, or
12   * (at your option) any later version.
13   *
14   * Resin Open Source is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17   * of NON-INFRINGEMENT.  See the GNU General Public License for more
18   * details.
19   *
20   * You should have received a copy of the GNU General Public License
21   * along with Resin Open Source; if not, write to the
22   *
23   *   Free Software Foundation, Inc.
24   *   59 Temple Place, Suite 330
25   *   Boston, MA 02111-1307  USA
26   *
27   * @author Scott Ferguson
28   */
29  
30  package com.caucho.jmx;
31  
32  import javax.management.ObjectName  ;
33  import java.lang.reflect.Method  ;
34  
35  /**
36   * Unmarshalls an mbean with a getObjectName()
37   */
38  class UnmarshallMBean extends Unmarshall {
39    private final Method   _method;
40  
41    protected UnmarshallMBean(Method   method)
42    {
43      _method = method;
44    }
45  
46    /**
47     * Unmarshalls into an open-model.
48     */
49    Object   unmarshall(Object   value)
50    {
51      if (value == null)
52        return value;
53  
54      try {
55        return (ObjectName  ) _method.invoke(value, (Object  []) null);
56      } catch (RuntimeException   e) {
57        throw e;
58      } catch (Exception   e) {
59        throw new RuntimeException  (e);
60      }
61    }
62  }
63
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