Coverage Report - org.jaxen.saxpath.SAXPathException

Classes in this File Line Coverage Branch Coverage Complexity
SAXPathException
75% 
75% 
1.857

 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/saxpath/SAXPathException.java,v 1.12 2005/09/24 11:46:45 elharo Exp $
 3  
  * $Revision: 1.12 $
 4  
  * $Date: 2005/09/24 11:46:45 $
 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 1.12 2005/09/24 11:46:45 elharo Exp $
 60  
  */
 61  
 
 62  
 package org.jaxen.saxpath;
 63  
 
 64  
 import java.io.PrintStream;
 65  
 import java.io.PrintWriter;
 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  270
     private static double javaVersion = 1.4;
 75  
     
 76  
     static {
 77  
         try {
 78  270
             String versionString = System.getProperty("java.version");
 79  270
             versionString = versionString.substring(0, 3);
 80  270
             javaVersion = Double.valueOf(versionString).doubleValue();
 81  
         }
 82  0
         catch (Exception ex) {
 83  
             // The version string format changed so presumably it's
 84  
             // 1.4 or later.
 85  270
         }
 86  270
     }
 87  
     
 88  
     /** Create a new SAXPathException with a given message.
 89  
      *
 90  
      *  @param message the error message
 91  
      */
 92  
     public SAXPathException(String message)
 93  
     {
 94  738
         super( message );
 95  738
     }
 96  
 
 97  
     /** Create a new SAXPathException based on another exception
 98  
      *
 99  
      *  @param cause the error source
 100  
      */
 101  
     public SAXPathException(Throwable cause)
 102  
     {
 103  252
             super ( cause.getMessage() );
 104  252
             initCause(cause);
 105  252
     }
 106  
 
 107  
     /**
 108  
      * Create a new SAXPathException with the specified detail message
 109  
      * and root cause.
 110  
      * 
 111  
      * @param message the detail message
 112  
      * @param cause the cause of this exception
 113  
      */
 114  
     public SAXPathException(String message, Throwable cause) {
 115  6
         super( message );
 116  6
         initCause(cause);
 117  6
     }
 118  
     
 119  
     
 120  
     private Throwable cause;
 121  996
     private boolean causeSet = false;
 122  
 
 123  
     /**
 124  
      * Returns the exception that caused this exception.
 125  
      * This is necessary to implement Java 1.4 chained exception 
 126  
      * functionality in a Java 1.3-compatible way.
 127  
      * 
 128  
      * @return the exception that caused this exception
 129  
      */
 130  
     public Throwable getCause() {
 131  30
         return cause;
 132  
     }
 133  
     
 134  
 
 135  
     /**
 136  
      * Sets the exception that caused this exception.
 137  
      * This is necessary to implement Java 1.4 chained exception 
 138  
      * functionality in a Java 1.3-compatible way.
 139  
      * 
 140  
      * @param cause the exception wrapped in this runtime exception
 141  
      * 
 142  
      * @return this exception
 143  
      */
 144  
     public Throwable initCause(Throwable cause) {
 145  258
         if (causeSet) throw new IllegalStateException("Cause cannot be reset");
 146  258
         if (cause == this) throw new IllegalArgumentException("Exception cannot be its own cause");
 147  258
         causeSet = true;
 148  258
         this.cause = cause;
 149  258
         return this;
 150  
     }
 151  
 
 152  
     /** Print this exception's stack trace, followed by the
 153  
      *        source exception's trace, if any.
 154  
      *
 155  
      * @param s the stream on which to print the stack trace
 156  
      */
 157  
     public void printStackTrace ( PrintStream s )
 158  
     {
 159  0
             super.printStackTrace ( s );
 160  0
             if (javaVersion < 1.4 && getCause() != null) {
 161  0
                 s.print( "Caused by: " );
 162  0
                 getCause().printStackTrace( s );
 163  
             }
 164  0
     }
 165  
 
 166  
     /** Print this exception's stack trace, followed by the
 167  
      *        source exception's stack trace, if any.
 168  
      *
 169  
      * @param s the writer on which to print the stack trace
 170  
      */
 171  
     public void printStackTrace ( PrintWriter s )
 172  
     {
 173  12
             super.printStackTrace( s );
 174  12
             if (javaVersion < 1.4 && getCause() != null) {
 175  0
                 s.print( "Caused by: " );
 176  0
                 getCause().printStackTrace( s );
 177  
             }
 178  12
     }
 179  
 
 180  
 }