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Java > Open Source Codes > com > sun > org > apache > xerces > internal > impl > dv > DatatypeException


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2001, 2002 The Apache Software Foundation. All rights
6  * reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. The end-user documentation included with the redistribution,
21  * if any, must include the following acknowledgment:
22  * "This product includes software developed by the
23  * Apache Software Foundation (http://www.apache.org/)."
24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
26  *
27  * 4. The names "Xerces" and "Apache Software Foundation" must
28  * not be used to endorse or promote products derived from this
29  * software without prior written permission. For written
30  * permission, please contact apache@apache.org.
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32  * 5. Products derived from this software may not be called "Apache",
33  * nor may "Apache" appear in their name, without prior written
34  * permission of the Apache Software Foundation.
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36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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47  * SUCH DAMAGE.
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50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 1999, International
53  * Business Machines, Inc., http://www.apache.org. For more
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56  */

57
58 package com.sun.org.apache.xerces.internal.impl.dv;
59
60 import java.util.ResourceBundle JavaDoc;
61 import java.util.PropertyResourceBundle JavaDoc;
62 import java.util.MissingResourceException JavaDoc;
63
64 /**
65  * Base class for datatype exceptions. For DTD types, the exception can be
66  * created from an error message. For Schema types, it needs an error code
67  * (as defined in Appendix C of the structure spec), plus an array of arguents,
68  * for error message substitution.
69  *
70  * @author Sandy Gao, IBM
71  *
72  * @version $Id: DatatypeException.java,v 1.4 2002/07/30 22:10:18 sandygao Exp $
73  */

74 public class DatatypeException extends Exception JavaDoc {
75
76     // used to store error code and error substitution arguments
77
protected String JavaDoc key;
78     protected Object JavaDoc[] args;
79
80     /**
81      * Create a new datatype exception by providing an error code and a list
82      * of error message substitution arguments.
83      *
84      * @param key error code
85      * @param args error arguments
86      */

87     public DatatypeException(String JavaDoc key, Object JavaDoc[] args) {
88         super(key);
89         this.key = key;
90         this.args = args;
91     }
92
93     /**
94      * Return the error code
95      *
96      * @return error code
97      */

98     public String JavaDoc getKey() {
99         return key;
100     }
101
102     /**
103      * Return the list of error arguments
104      *
105      * @return error arguments
106      */

107     public Object JavaDoc[] getArgs() {
108         return args;
109     }
110     
111     /**
112      * Overrides this method to get the formatted&localized error message.
113      *
114      * REVISIT: the system locale is used to load the property file.
115      * do we want to allow the appilcation to specify a
116      * different locale?
117      */

118     public String JavaDoc getMessage() {
119         ResourceBundle JavaDoc resourceBundle = null;
120         resourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLSchemaMessages");
121         if (resourceBundle == null)
122             throw new MissingResourceException JavaDoc("Property file not found!", "com.sun.org.apache.xerces.internal.impl.msg.XMLSchemaMessages", key);
123
124         String JavaDoc msg = resourceBundle.getString(key);
125         if (msg == null) {
126             msg = resourceBundle.getString("BadMessageKey");
127             throw new MissingResourceException JavaDoc(msg, "com.sun.org.apache.xerces.internal.impl.msg.XMLSchemaMessages", key);
128         }
129
130         if (args != null) {
131             try {
132                 msg = java.text.MessageFormat.format(msg, args);
133             } catch (Exception JavaDoc e) {
134                 msg = resourceBundle.getString("FormatFailed");
135                 msg += " " + resourceBundle.getString(key);
136             }
137         }
138
139         return msg;
140     }
141 }
142
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