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1   /*
2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/saxpath/SAXPathException.java,v 1.3 2005/04/09 13:53:33 elharo Exp $
3    * $Revision: 1.3 $
4    * $Date: 2005/04/09 13:53:33 $
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: SAXPathException.java,v 1.3 2005/04/09 13:53:33 elharo Exp $
60   */
61  
62  
63  
64  
65  package org.jaxen.saxpath;
66  
67  /*** Base of all SAXPath exceptions.
68   *
69   *  @author bob mcwhirter (bob@werken.com)
70   */
71  public class SAXPathException extends Exception
72  {
73  
74      /*** The source exception, if any */
75      private Throwable cause;
76  
77      /*** Construct with a given message.
78       *
79       *  @param msg the error message
80       */
81      public SAXPathException(String msg)
82      {
83          super( msg );
84      }
85  
86      /*** Construct based on another exception
87       *
88       *  @param src the error source
89       */
90      public SAXPathException(Throwable src)
91      {
92  	super ( src.getMessage() );
93  	cause = src;
94      }
95  
96      /*** If this exception was originally caused by another exception,
97       *  return it; otherwise, return <code>null</code>.
98       */
99      public Throwable getCause()
100     {
101 	return cause;
102     }
103 
104     /*** Overridden to print this exception's stack, followed by the
105      *	source exception's, if any.
106      */
107     public void printStackTrace ()
108     {
109 	printStackTrace ( System.err );
110     }
111 
112     /*** Overridden to print this exception's stack, followed by the
113      *	source exception's, if any.
114      */
115     public void printStackTrace ( java.io.PrintStream s )
116     {
117 	super.printStackTrace ( s );
118 	if (cause != null) {
119 	    s.println ( "root case:" );
120 	    cause.printStackTrace ( s );
121 	}
122     }
123 
124     /*** Overridden to print this exception's stack, followed by the
125      *	source exception's, if any.
126      */
127     public void printStackTrace (java.io.PrintWriter s)
128     {
129 	super.printStackTrace ( s );
130 	if (cause != null) {
131 	    s.println ( "root case:" );
132 	    cause.printStackTrace ( s );
133 	}
134     }
135 
136 }