1 /*
   2  * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 package javax.xml.stream;
  28 
  29 /**
  30  * An error class for reporting factory configuration errors.
  31  *
  32  * @version 1.0
  33  * @author Copyright (c) 2009 by Oracle Corporation. All Rights Reserved.
  34  * @since 1.6
  35  */
  36 public class FactoryConfigurationError extends Error {
  37     private static final long serialVersionUID = -2994412584589975744L;
  38 
  39   Exception nested;
  40 
  41   /**
  42    * Default constructor
  43    */
  44   public FactoryConfigurationError(){}
  45 
  46   /**
  47    * Construct an exception with a nested inner exception
  48    *
  49    * @param e the exception to nest
  50    */
  51   public FactoryConfigurationError(java.lang.Exception e){
  52     nested = e;
  53   }
  54 
  55   /**
  56    * Construct an exception with a nested inner exception
  57    * and a message
  58    *
  59    * @param e the exception to nest
  60    * @param msg the message to report
  61    */
  62   public FactoryConfigurationError(java.lang.Exception e, java.lang.String msg){
  63     super(msg);
  64     nested = e;
  65   }
  66 
  67   /**
  68    * Construct an exception with a nested inner exception
  69    * and a message
  70    *
  71    * @param msg the message to report
  72    * @param e the exception to nest
  73    */
  74   public FactoryConfigurationError(java.lang.String msg, java.lang.Exception e){
  75     super(msg);
  76     nested = e;
  77   }
  78 
  79   /**
  80    * Construct an exception with associated message
  81    *
  82    * @param msg the message to report
  83    */
  84   public FactoryConfigurationError(java.lang.String msg) {
  85     super(msg);
  86   }
  87 
  88   /**
  89    * Return the nested exception (if any)
  90    *
  91    * @return the nested exception or null
  92    */
  93   public Exception getException() {
  94     return nested;
  95   }
  96     /**
  97      * use the exception chaining mechanism of JDK1.4
  98     */
  99     @Override
 100     public Throwable getCause() {
 101         return nested;
 102     }
 103 
 104   /**
 105    * Report the message associated with this error
 106    *
 107    * @return the string value of the message
 108    */
 109   public String getMessage() {
 110     String msg = super.getMessage();
 111     if(msg != null)
 112       return msg;
 113     if(nested != null){
 114       msg = nested.getMessage();
 115       if(msg == null)
 116         msg = nested.getClass().toString();
 117     }
 118     return msg;
 119   }
 120 
 121 
 122 
 123 }