1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

   3  */
   4 /*
   5  * Licensed to the Apache Software Foundation (ASF) under one or more
   6  * contributor license agreements.  See the NOTICE file distributed with
   7  * this work for additional information regarding copyright ownership.
   8  * The ASF licenses this file to You under the Apache License, Version 2.0
   9  * (the "License"); you may not use this file except in compliance with
  10  * the License.  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.xpointer;
  22 
  23 import com.sun.org.apache.xerces.internal.util.MessageFormatter;
  24 import java.util.Locale;
  25 import java.util.MissingResourceException;
  26 import java.util.PropertyResourceBundle;
  27 import java.util.ResourceBundle;
  28 import jdk.xml.internal.SecuritySupport;
  29 
  30 /**
  31  * XPointerMessageFormatter provides error messages for the XPointer Framework
  32  * and element() Scheme Recommendations.
  33  *
  34  * @xerces.internal
  35  *
  36  * @LastModified: Sep 2017
  37  */
  38 final class XPointerMessageFormatter implements MessageFormatter {
  39 
  40     public static final String XPOINTER_DOMAIN = "http://www.w3.org/TR/XPTR";
  41 
  42     // private objects to cache the locale and resource bundle
  43     private Locale fLocale = null;
  44 
  45     private ResourceBundle fResourceBundle = null;
  46 
  47     /**
  48      * Formats a message with the specified arguments using the given locale
  49      * information.
  50      *
  51      * @param locale
  52      *            The locale of the message.
  53      * @param key
  54      *            The message key.
  55      * @param arguments
  56      *            The message replacement text arguments. The order of the
  57      *            arguments must match that of the placeholders in the actual
  58      *            message.
  59      *
  60      * @return Returns the formatted message.
  61      *
  62      * @throws MissingResourceException
  63      *             Thrown if the message with the specified key cannot be found.
  64      */
  65     public String formatMessage(Locale locale, String key, Object[] arguments)
  66             throws MissingResourceException {
  67 
  68         if (fResourceBundle == null || locale != fLocale) {
  69             if (locale != null) {
  70                 fResourceBundle = SecuritySupport.getResourceBundle(
  71                         "com.sun.org.apache.xerces.internal.impl.msg.XPointerMessages", locale);
  72                 // memorize the most-recent locale
  73                 fLocale = locale;
  74             }
  75             if (fResourceBundle == null)
  76                 fResourceBundle = SecuritySupport.getResourceBundle(
  77                         "com.sun.org.apache.xerces.internal.impl.msg.XPointerMessages");
  78         }
  79 
  80         String msg = fResourceBundle.getString(key);
  81         if (arguments != null) {
  82             try {
  83                 msg = java.text.MessageFormat.format(msg, arguments);
  84             } catch (Exception e) {
  85                 msg = fResourceBundle.getString("FormatFailed");
  86                 msg += " " + fResourceBundle.getString(key);
  87             }
  88         }
  89 
  90         if (msg == null) {
  91             msg = fResourceBundle.getString("BadMessageKey");
  92             throw new MissingResourceException(msg,
  93                     "com.sun.org.apache.xerces.internal.impl.msg.XPointerMessages", key);
  94         }
  95 
  96         return msg;
  97     }
  98 }
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