/*

  * Licensed to the Apache Software Foundation (ASF) under one or more

  * contributor license agreements.  See the NOTICE file distributed with

  * this work for additional information regarding copyright ownership.

  * The ASF licenses this file to You under the Apache License, Version 2.0

  * (the "License"); you may not use this file except in compliance with

  * the License.  You may obtain a copy of the License at

  *

  *      http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.apache.commons.i18n;

 import java.util.Locale;

 import java.util.ResourceBundle;

 /**

  * This class holds utility methods useful when working with i18n.

  * @author Mattias Jiderhamn

  */

 public class I18nUtils {

     static final String INTERNAL_MESSAGE_NOT_FOUND = "Internal I18n error: Message not found";

     static final String MESSAGE_NOT_FOUND = "messageNotFound";

     static final String NO_MESSAGE_ENTRIES_FOUND = "noMessageEntriesFound";

     static final String MESSAGE_ENTRY_NOT_FOUND = "messageEntryNotFound";

     static final String RESOURCE_BUNDLE_NOT_FOUND = "resourceBundleNotFound";

     public static final String MESSAGE_PARSING_ERROR = "messageParsingError";

     public static final ResourceBundle INTERNAL_MESSAGES = ResourceBundle.getBundle("i18n-messages", Locale.getDefault());

     private I18nUtils() {

     }

     public static Locale getParentLocale (Locale locale) {

         if(locale.getVariant().length() != 0)

           return new Locale(locale.getLanguage(), locale.getCountry());

         else if(locale.getCountry().length() != 0)

             return new Locale(locale.getLanguage());

         else // Locale with only language have no parent

             return null;

     }

 }