1 /*
   2  * reserved comment block
   3  * DO NOT REMOVE OR ALTER!
   4  */
   5 /*
   6  * Copyright 1999-2004 The Apache Software Foundation.
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20 
  21 package com.sun.org.apache.xerces.internal.impl.msg;
  22 
  23 import java.util.Locale;
  24 import java.util.MissingResourceException;
  25 import java.util.ResourceBundle;
  26 import java.util.PropertyResourceBundle;
  27 
  28 import com.sun.org.apache.xerces.internal.util.MessageFormatter;
  29 import com.sun.org.apache.xerces.internal.utils.SecuritySupport;
  30 
  31 /**
  32  * XMLMessageFormatter provides error messages for the XML 1.0 Recommendation and for
  33  * the Namespaces Recommendation
  34  *
  35  * @xerces.internal
  36  *
  37  * @author Eric Ye, IBM
  38  *
  39  */
  40 public class XMLMessageFormatter_ja implements MessageFormatter {
  41     /**
  42      * The domain of messages concerning the XML 1.0 specification.
  43      */
  44     public static final String XML_DOMAIN = "http://www.w3.org/TR/1998/REC-xml-19980210";
  45     public static final String XMLNS_DOMAIN = "http://www.w3.org/TR/1999/REC-xml-names-19990114";
  46 
  47     // private objects to cache the locale and resource bundle
  48     private Locale fLocale = null;
  49     private ResourceBundle fResourceBundle = null;
  50 
  51     //
  52     // MessageFormatter methods
  53     //
  54 
  55     /**
  56      * Formats a message with the specified arguments using the given
  57      * locale information.
  58      *
  59      * @param locale    The locale of the message.
  60      * @param key       The message key.
  61      * @param arguments The message replacement text arguments. The order
  62      *                  of the arguments must match that of the placeholders
  63      *                  in the actual message.
  64      *
  65      * @return Returns the formatted message.
  66      *
  67      * @throws MissingResourceException Thrown if the message with the
  68      *                                  specified key cannot be found.
  69      */
  70     public String formatMessage(Locale locale, String key, Object[] arguments)
  71         throws MissingResourceException {
  72 
  73         if (fResourceBundle == null || locale != fLocale) {
  74             if (locale != null) {
  75                 fResourceBundle = SecuritySupport.getResourceBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages", locale);
  76                 // memorize the most-recent locale
  77                 fLocale = locale;
  78             }
  79             if (fResourceBundle == null)
  80                 fResourceBundle = SecuritySupport.getResourceBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages");
  81         }
  82 
  83         // format message
  84         String msg;
  85         try {
  86             msg = fResourceBundle.getString(key);
  87             if (arguments != null) {
  88                 try {
  89                     msg = java.text.MessageFormat.format(msg, arguments);
  90                 }
  91                 catch (Exception e) {
  92                     msg = fResourceBundle.getString("FormatFailed");
  93                     msg += " " + fResourceBundle.getString(key);
  94                 }
  95             }
  96         }
  97 
  98         // error
  99         catch (MissingResourceException e) {
 100             msg = fResourceBundle.getString("BadMessageKey");
 101             throw new MissingResourceException(key, msg, key);
 102         }
 103 
 104         // no message
 105         if (msg == null) {
 106             msg = key;
 107             if (arguments.length > 0) {
 108                 StringBuffer str = new StringBuffer(msg);
 109                 str.append('?');
 110                 for (int i = 0; i < arguments.length; i++) {
 111                     if (i > 0) {
 112                         str.append('&');
 113                     }
 114                     str.append(String.valueOf(arguments[i]));
 115                 }
 116             }
 117         }
 118 
 119         return msg;
 120     }
 121 
 122 }