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1   /*
2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/FunctionCallException.java,v 1.5 2003/06/09 18:33:32 proyal Exp $
3    * $Revision: 1.5 $
4    * $Date: 2003/06/09 18:33:32 $
5    *
6    * ====================================================================
7    *
8    * Copyright (C) 2000-2002 bob mcwhirter & James Strachan.
9    * All rights reserved.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions
13   * are met:
14   * 
15   * 1. Redistributions of source code must retain the above copyright
16   *    notice, this list of conditions, and the following disclaimer.
17   *
18   * 2. Redistributions in binary form must reproduce the above copyright
19   *    notice, this list of conditions, and the disclaimer that follows 
20   *    these conditions in the documentation and/or other materials 
21   *    provided with the distribution.
22   *
23   * 3. The name "Jaxen" must not be used to endorse or promote products
24   *    derived from this software without prior written permission.  For
25   *    written permission, please contact license@jaxen.org.
26   * 
27   * 4. Products derived from this software may not be called "Jaxen", nor
28   *    may "Jaxen" appear in their name, without prior written permission
29   *    from the Jaxen Project Management (pm@jaxen.org).
30   * 
31   * In addition, we request (but do not require) that you include in the 
32   * end-user documentation provided with the redistribution and/or in the 
33   * software itself an acknowledgement equivalent to the following:
34   *     "This product includes software developed by the
35   *      Jaxen Project (http://www.jaxen.org/)."
36   * Alternatively, the acknowledgment may be graphical using the logos 
37   * available at http://www.jaxen.org/
38   *
39   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42   * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50   * SUCH DAMAGE.
51   *
52   * ====================================================================
53   * This software consists of voluntary contributions made by many 
54   * individuals on behalf of the Jaxen Project and was originally 
55   * created by bob mcwhirter <bob@werken.com> and 
56   * James Strachan <jstrachan@apache.org>.  For more information on the 
57   * Jaxen Project, please see <http://www.jaxen.org/>.
58   * 
59   * $Id: FunctionCallException.java,v 1.5 2003/06/09 18:33:32 proyal Exp $
60   */
61  
62  
63  package org.jaxen;
64  
65  import java.io.PrintStream;
66  import java.io.PrintWriter;
67  
68  /*** <code>FunctionCallException</code> is thrown if an exception
69   * occurs during the evaluation of a function.
70   * This exception may include a root exception, such as if the 
71   * real exception was failure to load an XML document via the
72   * document() function call.
73   *
74   * @author bob mcwhirter (bob @ werken.com)
75   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
76   */
77  public class FunctionCallException extends JaxenException
78  {
79      private Throwable nestedException;
80  
81      public FunctionCallException(String message) {
82          super( message );
83      }
84  
85      public FunctionCallException(Throwable nestedException) {
86          super( nestedException.getMessage() );
87          this.nestedException = nestedException;
88      }
89  
90      public FunctionCallException(String message, Exception nestedException) {
91          super( message );
92          this.nestedException = nestedException;
93      }
94  
95      public void printStackTrace( PrintStream s ) {
96          super.printStackTrace( s );
97          if ( nestedException != null ) 
98          {
99              s.println( "Root cause:" );
100             nestedException.printStackTrace( s );
101         }
102     }
103     
104     public void printStackTrace( PrintWriter w ) {
105         super.printStackTrace( w );
106         if ( nestedException != null ) 
107         {
108             w.println( "Root cause:" );
109             nestedException.printStackTrace( w );
110         }
111     }
112     
113     public void printStackTrace() {
114         super.printStackTrace();
115         if ( nestedException != null ) 
116         {
117             System.out.println( "Root cause:" );
118             nestedException.printStackTrace();
119         }
120     }
121     
122     public Throwable fillInStackTrace() {
123         if ( nestedException == null ) {
124             return super.fillInStackTrace(); 
125         } else {
126             return nestedException.fillInStackTrace();
127         }
128     }
129     
130     // Properties
131     //-------------------------------------------------------------------------    
132     public Throwable getNestedException() {
133         return nestedException;
134     }
135 }