Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SAXPathException |
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| 1.8571428571428572;1.857 |
1 | /* | |
2 | * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/saxpath/SAXPathException.java,v 1.14 2006/06/03 20:28:45 elharo Exp $ | |
3 | * $Revision: 1.14 $ | |
4 | * $Date: 2006/06/03 20:28:45 $ | |
5 | * | |
6 | * ==================================================================== | |
7 | * | |
8 | * Copyright 2000-2002 bob mcwhirter & James Strachan. | |
9 | * All rights reserved. | |
10 | * | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions are | |
14 | * met: | |
15 | * | |
16 | * * Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * | |
19 | * * Redistributions in binary form must reproduce the above copyright | |
20 | * notice, this list of conditions and the following disclaimer in the | |
21 | * documentation and/or other materials provided with the distribution. | |
22 | * | |
23 | * * Neither the name of the Jaxen Project nor the names of its | |
24 | * contributors may be used to endorse or promote products derived | |
25 | * from this software without specific prior written permission. | |
26 | * | |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
28 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
29 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
30 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | |
31 | * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
32 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
33 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
34 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
35 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
36 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
37 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
38 | * | |
39 | * ==================================================================== | |
40 | * This software consists of voluntary contributions made by many | |
41 | * individuals on behalf of the Jaxen Project and was originally | |
42 | * created by bob mcwhirter <bob@werken.com> and | |
43 | * James Strachan <jstrachan@apache.org>. For more information on the | |
44 | * Jaxen Project, please see <http://www.jaxen.org/>. | |
45 | * | |
46 | * $Id: SAXPathException.java,v 1.14 2006/06/03 20:28:45 elharo Exp $ | |
47 | */ | |
48 | ||
49 | package org.jaxen.saxpath; | |
50 | ||
51 | import java.io.PrintStream; | |
52 | import java.io.PrintWriter; | |
53 | ||
54 | /** Base of all SAXPath exceptions. | |
55 | * | |
56 | * @author bob mcwhirter (bob@werken.com) | |
57 | */ | |
58 | public class SAXPathException extends Exception | |
59 | { | |
60 | ||
61 | /** | |
62 | * | |
63 | */ | |
64 | private static final long serialVersionUID = 4826444568928720706L; | |
65 | ||
66 | 94 | private static double javaVersion = 1.4; |
67 | ||
68 | static { | |
69 | try { | |
70 | 94 | String versionString = System.getProperty("java.version"); |
71 | 94 | versionString = versionString.substring(0, 3); |
72 | 94 | javaVersion = Double.valueOf(versionString).doubleValue(); |
73 | } | |
74 | 0 | catch (Exception ex) { |
75 | // The version string format changed so presumably it's | |
76 | // 1.4 or later. | |
77 | 94 | } |
78 | 94 | } |
79 | ||
80 | /** Create a new SAXPathException with a given message. | |
81 | * | |
82 | * @param message the error message | |
83 | */ | |
84 | public SAXPathException(String message) | |
85 | { | |
86 | 258 | super( message ); |
87 | 258 | } |
88 | ||
89 | /** Create a new SAXPathException based on another exception | |
90 | * | |
91 | * @param cause the error source | |
92 | */ | |
93 | public SAXPathException(Throwable cause) | |
94 | { | |
95 | 92 | super ( cause.getMessage() ); |
96 | 92 | initCause(cause); |
97 | 92 | } |
98 | ||
99 | /** | |
100 | * Create a new SAXPathException with the specified detail message | |
101 | * and root cause. | |
102 | * | |
103 | * @param message the detail message | |
104 | * @param cause the cause of this exception | |
105 | */ | |
106 | public SAXPathException(String message, Throwable cause) { | |
107 | 2 | super( message ); |
108 | 2 | initCause(cause); |
109 | 2 | } |
110 | ||
111 | ||
112 | private Throwable cause; | |
113 | 352 | private boolean causeSet = false; |
114 | ||
115 | /** | |
116 | * Returns the exception that caused this exception. | |
117 | * This is necessary to implement Java 1.4 chained exception | |
118 | * functionality in a Java 1.3-compatible way. | |
119 | * | |
120 | * @return the exception that caused this exception | |
121 | */ | |
122 | public Throwable getCause() { | |
123 | 10 | return cause; |
124 | } | |
125 | ||
126 | ||
127 | /** | |
128 | * Sets the exception that caused this exception. | |
129 | * This is necessary to implement Java 1.4 chained exception | |
130 | * functionality in a Java 1.3-compatible way. | |
131 | * | |
132 | * @param cause the exception wrapped in this runtime exception | |
133 | * | |
134 | * @return this exception | |
135 | */ | |
136 | public Throwable initCause(Throwable cause) { | |
137 | 94 | if (causeSet) throw new IllegalStateException("Cause cannot be reset"); |
138 | 94 | if (cause == this) throw new IllegalArgumentException("Exception cannot be its own cause"); |
139 | 94 | causeSet = true; |
140 | 94 | this.cause = cause; |
141 | 94 | return this; |
142 | } | |
143 | ||
144 | /** Print this exception's stack trace, followed by the | |
145 | * source exception's trace, if any. | |
146 | * | |
147 | * @param s the stream on which to print the stack trace | |
148 | */ | |
149 | public void printStackTrace ( PrintStream s ) | |
150 | { | |
151 | 0 | super.printStackTrace ( s ); |
152 | 0 | if (javaVersion < 1.4 && getCause() != null) { |
153 | 0 | s.print( "Caused by: " ); |
154 | 0 | getCause().printStackTrace( s ); |
155 | } | |
156 | 0 | } |
157 | ||
158 | /** Print this exception's stack trace, followed by the | |
159 | * source exception's stack trace, if any. | |
160 | * | |
161 | * @param s the writer on which to print the stack trace | |
162 | */ | |
163 | public void printStackTrace ( PrintWriter s ) | |
164 | { | |
165 | 4 | super.printStackTrace( s ); |
166 | 4 | if (javaVersion < 1.4 && getCause() != null) { |
167 | 0 | s.print( "Caused by: " ); |
168 | 0 | getCause().printStackTrace( s ); |
169 | } | |
170 | 4 | } |
171 | ||
172 | } |