1 /* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5 /* 6 * Copyright 2001, 2002,2004 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.xs; 22 23 import com.sun.org.apache.xerces.internal.util.MessageFormatter; 24 import com.sun.org.apache.xerces.internal.utils.SecuritySupport; 25 import java.util.Locale; 26 import java.util.MissingResourceException; 27 import java.util.ResourceBundle; 28 29 30 /** 31 * SchemaMessageProvider implements an XMLMessageProvider that 32 * provides localizable error messages for the W3C XML Schema Language 33 * 34 * @xerces.internal 35 * 36 * @author Elena Litani, IBM 37 */ 38 public class XSMessageFormatter implements MessageFormatter { 39 /** 40 * The domain of messages concerning the XML Schema: Structures specification. 41 */ 42 public static final String SCHEMA_DOMAIN = "http://www.w3.org/TR/xml-schema-1"; 43 44 45 // private objects to cache the locale and resource bundle 46 private Locale fLocale = null; 47 private ResourceBundle fResourceBundle = null; 48 49 /** 50 * Formats a message with the specified arguments using the given 51 * locale information. 52 * 53 * @param locale The locale of the message. 54 * @param key The message key. 55 * @param arguments The message replacement text arguments. The order 56 * of the arguments must match that of the placeholders 57 * in the actual message. 58 * 59 * @return Returns the formatted message. 60 * 61 * @throws MissingResourceException Thrown if the message with the 62 * specified key cannot be found. 63 */ 64 public String formatMessage(Locale locale, String key, Object[] arguments) 65 throws MissingResourceException { 66 67 if (fResourceBundle == null || locale != fLocale) { 68 if (locale != null) { 69 fResourceBundle = SecuritySupport.getResourceBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLSchemaMessages", locale); 70 // memorize the most-recent locale 71 fLocale = locale; 72 } 73 if (fResourceBundle == null) 74 fResourceBundle = SecuritySupport.getResourceBundle("com.sun.org.apache.xerces.internal.impl.msg.XMLSchemaMessages"); 75 } 76 77 String msg = fResourceBundle.getString(key); 78 if (arguments != null) { 79 try { 80 msg = java.text.MessageFormat.format(msg, arguments); 81 } catch (Exception e) { 82 msg = fResourceBundle.getString("FormatFailed"); 83 msg += " " + fResourceBundle.getString(key); 84 } 85 } 86 87 if (msg == null) { 88 msg = fResourceBundle.getString("BadMessageKey"); 89 throw new MissingResourceException(msg, "com.sun.org.apache.xerces.internal.impl.msg.SchemaMessages", key); 90 } 91 92 return msg; 93 } 94 }