1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * @LastModified: Sep 2017
   4  */
   5 /*
   6  * Licensed to the Apache Software Foundation (ASF) under one or more
   7  * contributor license agreements.  See the NOTICE file distributed with
   8  * this work for additional information regarding copyright ownership.
   9  * The ASF licenses this file to You under the Apache License, Version 2.0
  10  * (the "License"); you may not use this file except in compliance with
  11  * the License.  You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  */
  21 
  22 package com.sun.org.apache.xerces.internal.impl.msg;
  23 
  24 import com.sun.org.apache.xerces.internal.util.MessageFormatter;
  25 import java.util.Locale;
  26 import java.util.MissingResourceException;
  27 import java.util.ResourceBundle;
  28 import jdk.xml.internal.SecuritySupport;
  29 
  30 /**
  31  * XMLMessageFormatter provides error messages for the XML 1.0 Recommendation and for
  32  * the Namespaces Recommendation
  33  *
  34  * @xerces.internal
  35  *
  36  * @author Eric Ye, IBM
  37  *

  38  */
  39 public class XMLMessageFormatter implements MessageFormatter {
  40     /**
  41      * The domain of messages concerning the XML 1.0 specification.
  42      */
  43     public static final String XML_DOMAIN = "http://www.w3.org/TR/1998/REC-xml-19980210";
  44     public static final String XMLNS_DOMAIN = "http://www.w3.org/TR/1999/REC-xml-names-19990114";
  45 
  46     // private objects to cache the locale and resource bundle
  47     private Locale fLocale = null;
  48     private ResourceBundle fResourceBundle = null;
  49 
  50     //
  51     // MessageFormatter methods
  52     //
  53 
  54     /**
  55      * Formats a message with the specified arguments using the given
  56      * locale information.
  57      *
  58      * @param locale    The locale of the message.
  59      * @param key       The message key.
  60      * @param arguments The message replacement text arguments. The order
  61      *                  of the arguments must match that of the placeholders
  62      *                  in the actual message.
  63      *
  64      * @return Returns the formatted message.
  65      *
  66      * @throws MissingResourceException Thrown if the message with the
  67      *                                  specified key cannot be found.
  68      */
  69     public String formatMessage(Locale locale, String key, Object[] arguments)
  70         throws MissingResourceException {
  71 
  72         if (fResourceBundle == null || locale != fLocale) {
  73             if (locale != null) {
  74                 fResourceBundle = SecuritySupport.getResourceBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages", locale);
  75                 // memorize the most-recent locale
  76                 fLocale = locale;
  77             }
  78             if (fResourceBundle == null)
  79                 fResourceBundle = SecuritySupport.getResourceBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLMessages");
  80         }
  81 
  82         // format message
  83         String msg;
  84         try {
  85             msg = fResourceBundle.getString(key);
  86             if (arguments != null) {
  87                 try {
  88                     msg = java.text.MessageFormat.format(msg, arguments);
  89                 }
  90                 catch (Exception e) {
  91                     msg = fResourceBundle.getString("FormatFailed");
  92                     msg += " " + fResourceBundle.getString(key);
  93                 }
  94             }
  95         }
  96 
  97         // error
  98         catch (MissingResourceException e) {
  99             msg = fResourceBundle.getString("BadMessageKey");
 100             throw new MissingResourceException(key, msg, key);
 101         }
 102 
 103         // no message
 104         if (msg == null) {
 105             msg = key;
 106             if (arguments.length > 0) {
 107                 StringBuffer str = new StringBuffer(msg);
 108                 str.append('?');
 109                 for (int i = 0; i < arguments.length; i++) {
 110                     if (i > 0) {
 111                         str.append('&');
 112                     }
 113                     str.append(String.valueOf(arguments[i]));
 114                 }
 115             }
 116         }
 117 
 118         return msg;
 119     }
 120 
 121 }
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