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Java > Open Source Codes > com > caucho > ejb > EJBExceptionWrapper


1 /*
2  * Copyright (c) 1998-2006 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.ejb;
31
32 import javax.ejb.EJBException JavaDoc;
33
34 /**
35  * Wraps the actual exception with an EJB exception
36  */
37 public class EJBExceptionWrapper extends EJBException JavaDoc
38 {
39   private Throwable JavaDoc _rootCause;
40   
41   /**
42    * Null constructor for beans
43    */
44   public EJBExceptionWrapper()
45   {
46   }
47   /**
48    * Create a basic EJBExceptionWrapper with a message.
49    *
50    * @param msg the exception message.
51    */
52   public EJBExceptionWrapper(String JavaDoc msg)
53   {
54     super(msg);
55   }
56
57   /**
58    * Create a EJBExceptionWrapper wrapping a root exception.
59    *
60    * @param rootCause the underlying wrapped exception.
61    */
62   public EJBExceptionWrapper(Throwable JavaDoc rootCause)
63   {
64     super(rootCause.toString());
65
66     _rootCause = rootCause;
67     
68     initCause(rootCause);
69   }
70
71   /**
72    * Create a EJBExceptionWrapper wrapping a root exception.
73    *
74    * @param rootCause the underlying wrapped exception.
75    */
76   public EJBExceptionWrapper(String JavaDoc msg, Throwable JavaDoc rootCause)
77   {
78     super(msg);
79
80     _rootCause = rootCause;
81     
82     initCause(rootCause);
83   }
84
85   public Throwable JavaDoc getCause()
86   {
87     return _rootCause;
88   }
89
90   /**
91    * Creates an EJBException from a throwable.
92    */
93   public static EJBException JavaDoc create(Throwable JavaDoc rootCause)
94   {
95     if (rootCause instanceof EJBException JavaDoc)
96       return ((EJBException JavaDoc) rootCause);
97     else
98       return new EJBExceptionWrapper(rootCause);
99   }
100
101   /**
102    * Creates a runtime from a throwable.
103    */
104   public static RuntimeException JavaDoc createRuntime(Throwable JavaDoc rootCause)
105   {
106     if (rootCause instanceof RuntimeException JavaDoc)
107       return ((RuntimeException JavaDoc) rootCause);
108     else
109       return new EJBExceptionWrapper(rootCause);
110   }
111 }
112
113
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