Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
JaxenRuntimeException |
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| 2.0;2 |
1 | package org.jaxen; |
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2 | ||
3 | import java.io.PrintStream; |
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4 | import java.io.PrintWriter; |
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5 | ||
6 | /* |
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7 | * $Header: $ |
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8 | * $Revision: $ |
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9 | * $Date: $ |
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10 | * |
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11 | * ==================================================================== |
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12 | * |
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13 | * Copyright (C) 2000-2005 bob mcwhirter & James Strachan. |
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14 | * All rights reserved. |
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15 | * |
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16 | * Redistribution and use in source and binary forms, with or without |
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17 | * modification, are permitted provided that the following conditions |
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18 | * are met: |
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19 | * |
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20 | * 1. Redistributions of source code must retain the above copyright |
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21 | * notice, this list of conditions, and the following disclaimer. |
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22 | * |
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23 | * 2. Redistributions in binary form must reproduce the above copyright |
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24 | * notice, this list of conditions, and the disclaimer that follows |
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25 | * these conditions in the documentation and/or other materials |
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26 | * provided with the distribution. |
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27 | * |
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28 | * 3. The name "Jaxen" must not be used to endorse or promote products |
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29 | * derived from this software without prior written permission. For |
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30 | * written permission, please contact license@jaxen.org. |
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31 | * |
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32 | * 4. Products derived from this software may not be called "Jaxen", nor |
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33 | * may "Jaxen" appear in their name, without prior written permission |
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34 | * from the Jaxen Project Management (pm@jaxen.org). |
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35 | * |
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36 | * In addition, we request (but do not require) that you include in the |
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37 | * end-user documentation provided with the redistribution and/or in the |
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38 | * software itself an acknowledgement equivalent to the following: |
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39 | * "This product includes software developed by the |
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40 | * Jaxen Project <http://www.jaxen.org/>." |
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41 | * Alternatively, the acknowledgment may be graphical using the logos |
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42 | * available at http://www.jaxen.org/ |
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43 | * |
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44 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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45 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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46 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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47 | * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT |
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48 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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49 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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50 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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51 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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52 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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53 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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54 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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55 | * SUCH DAMAGE. |
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56 | * |
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57 | * ==================================================================== |
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58 | * This software consists of voluntary contributions made by many |
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59 | * individuals on behalf of the Jaxen Project and was originally |
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60 | * created by bob mcwhirter <bob@werken.com> and |
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61 | * James Strachan <jstrachan@apache.org>. For more information on the |
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62 | * Jaxen Project, please see <http://www.jaxen.org/>. |
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63 | * |
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64 | * $Id: $ |
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65 | */ |
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66 | ||
67 | /** |
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68 | * This class exists to wrap Jaxen exceptions that otherwise wouldn't be propagated |
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69 | * up through the axis iterators. |
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70 | */ |
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71 | public class JaxenRuntimeException extends RuntimeException |
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72 | { |
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73 | private Throwable cause; |
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74 | 18 | private boolean causeSet = false; |
75 | ||
76 | /** |
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77 | * Create a new JaxenRuntimeException. |
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78 | * |
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79 | * @param cause the nested exception that's wrapped |
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80 | * inside this exception |
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81 | */ |
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82 | public JaxenRuntimeException(Throwable cause) |
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83 | { |
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84 | 12 | super(cause.getMessage()); |
85 | 12 | initCause(cause); |
86 | 12 | } |
87 | ||
88 | /** |
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89 | * Create a new JaxenRuntimeException. |
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90 | * |
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91 | * @param message the detail message |
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92 | */ |
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93 | public JaxenRuntimeException(String message) { |
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94 | 6 | super(message); |
95 | 6 | } |
96 | ||
97 | /** |
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98 | * Returns the exception that caused this exception. |
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99 | * This is necessary to implement Java 1.4 chained exception |
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100 | * functionality in a Java 1.3-compatible way. |
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101 | * |
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102 | * @return the exception that caused this exception |
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103 | */ |
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104 | public Throwable getCause() { |
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105 | 12 | return cause; |
106 | } |
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107 | ||
108 | ||
109 | /** |
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110 | * Sets the exception that caused this exception. |
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111 | * This is necessary to implement Java 1.4 chained exception |
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112 | * functionality in a Java 1.3-compatible way. |
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113 | * |
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114 | * @param cause the exception wrapped in this runtime exception |
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115 | * |
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116 | * @return this exception |
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117 | */ |
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118 | public Throwable initCause(Throwable cause) { |
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119 | 12 | if (causeSet) throw new IllegalStateException("Cause cannot be reset"); |
120 | 12 | if (cause == this) throw new IllegalArgumentException("Exception cannot be its own cause"); |
121 | 12 | causeSet = true; |
122 | 12 | this.cause = cause; |
123 | 12 | return this; |
124 | } |
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125 | ||
126 | /** Print this exception's stack trace, followed by the |
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127 | * source exception's trace, if any. |
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128 | * |
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129 | * @param s the stream on which to print the stack trace |
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130 | */ |
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131 | public void printStackTrace ( PrintStream s ) |
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132 | { |
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133 | 0 | super.printStackTrace ( s ); |
134 | 0 | if (JaxenException.javaVersion < 1.4 && getCause() != null) { |
135 | 0 | s.print( "Caused by: " ); |
136 | 0 | getCause().printStackTrace( s ); |
137 | } |
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138 | 0 | } |
139 | ||
140 | /** Print this exception's stack trace, followed by the |
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141 | * source exception's stack trace, if any. |
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142 | * |
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143 | * @param s the writer on which to print the stack trace |
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144 | */ |
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145 | public void printStackTrace ( PrintWriter s ) |
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146 | { |
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147 | 6 | super.printStackTrace( s ); |
148 | 6 | if (JaxenException.javaVersion < 1.4 && getCause() != null) { |
149 | 0 | s.print( "Caused by: " ); |
150 | 0 | getCause().printStackTrace( s ); |
151 | } |
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152 | 6 | } |
153 | ||
154 | } |