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Java > Open Source Codes > com > sun > org > apache > xerces > internal > dom > DOMMessageFormatter


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 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.
31  *
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.
35  *
36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47  * SUCH DAMAGE.
48  * ====================================================================
49  *
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) 2001, International
53  * Business Machines, Inc., http://www.apache.org. For more
54  * information on the Apache Software Foundation, please see
55  * <http://www.apache.org/>.
56  */
57
58 package com.sun.org.apache.xerces.internal.dom;
59 import java.util.Locale JavaDoc;
60 import java.util.MissingResourceException JavaDoc;
61 import java.util.ResourceBundle JavaDoc;
62 import java.util.PropertyResourceBundle JavaDoc;
63
64 /**
65  * Used to format DOM error messages, using the system locale.
66  *
67  * @author Sandy Gao, IBM
68  * @version $Id: DOMMessageFormatter.java,v 1.6 2004/07/12 23:44:28 venu Exp $
69  */
70 public class DOMMessageFormatter {
71     public static final String JavaDoc DOM_DOMAIN = "http://www.w3.org/dom/DOMTR";
72     public static final String JavaDoc XML_DOMAIN = "http://www.w3.org/TR/1998/REC-xml-19980210";
73     public static final String JavaDoc SERIALIZER_DOMAIN = "http://apache.org/xml/serializer";
74     
75     private static ResourceBundle JavaDoc domResourceBundle = null;
76     private static ResourceBundle JavaDoc xmlResourceBundle = null;
77     private static ResourceBundle JavaDoc serResourceBundle = null;
78     private static Locale JavaDoc locale = null;
79     
80     
81     DOMMessageFormatter(){
82         locale = Locale.getDefault();
83     }
84     /**
85      * Formats a message with the specified arguments using the given
86      * locale information.
87      *
88      * @param domain domain from which error string is to come.
89      * @param key The message key.
90      * @param arguments The message replacement text arguments. The order
91      * of the arguments must match that of the placeholders
92      * in the actual message.
93      *
94      * @return the formatted message.
95      *
96      * @throws MissingResourceException Thrown if the message with the
97      * specified key cannot be found.
98      */
99     public static String JavaDoc formatMessage(String JavaDoc domain,
100     String JavaDoc key, Object JavaDoc[] arguments)
101     throws MissingResourceException JavaDoc {
102         ResourceBundle JavaDoc resourceBundle = getResourceBundle(domain);
103         if(resourceBundle == null){
104             init();
105             resourceBundle = getResourceBundle(domain);
106             if(resourceBundle == null)
107                 throw new MissingResourceException JavaDoc("Unknown domain" + domain, null, key);
108         }
109         // format message
110 String JavaDoc msg;
111         try {
112             msg = key + ": " + resourceBundle.getString(key);
113             if (arguments != null) {
114                 try {
115                     msg = java.text.MessageFormat.format(msg, arguments);
116                 }
117                 catch (Exception JavaDoc e) {
118                     msg = resourceBundle.getString("FormatFailed");
119                     msg += " " + resourceBundle.getString(key);
120                 }
121             }
122         } // error
123 catch (MissingResourceException JavaDoc e) {
124             msg = resourceBundle.getString("BadMessageKey");
125             throw new MissingResourceException JavaDoc(key, msg, key);
126         }
127         
128         // no message
129 if (msg == null) {
130             msg = key;
131             if (arguments.length > 0) {
132                 StringBuffer JavaDoc str = new StringBuffer JavaDoc(msg);
133                 str.append('?');
134                 for (int i = 0; i < arguments.length; i++) {
135                     if (i > 0) {
136                         str.append('&');
137                     }
138                     str.append(String.valueOf(arguments[i]));
139                 }
140             }
141         }
142         
143         return msg;
144     }
145     
146     static ResourceBundle JavaDoc getResourceBundle(String JavaDoc domain){
147         if(domain == DOM_DOMAIN || domain.equals(DOM_DOMAIN))
148             return domResourceBundle;
149         else if( domain == XML_DOMAIN || domain.equals(XML_DOMAIN))
150             return xmlResourceBundle;
151         else if(domain == SERIALIZER_DOMAIN || domain.equals(SERIALIZER_DOMAIN))
152             return serResourceBundle;
153         return null;
154     }
155     /**
156      * Initialize Message Formatter.
157      */
158     public static void init(){
159         if (locale != null) {
160             domResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.DOMMessages", locale);
161             serResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLSerializerMessages", locale);
162             xmlResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages", locale);
163         }else{
164             domResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.DOMMessages");
165             serResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLSerializerMessages");
166             xmlResourceBundle = PropertyResourceBundle.getBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages");
167         }
168     }
169     
170     /**
171      * setLocale to be used by the formatter.
172      * @param locale
173      */
174     public static void setLocale(Locale JavaDoc dlocale){
175         locale = dlocale;
176     }
177 }
178
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