001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.swaps;
014
015import java.util.*;
016
017import org.apache.juneau.*;
018import org.apache.juneau.swap.*;
019
020/**
021 * Transforms {@link Locale} objects to and from language tag {@link String Strings}.
022 *
023 * <h5 class='section'>See Also:</h5><ul>
024 *    <li class='link'><a class="doclink" href="../../../../index.html#jm.Swaps">Swaps</a>
025 * </ul>
026 */
027public class LocaleSwap extends StringSwap<Locale> {
028
029   @Override /* ObjectSwap */
030   public String swap(BeanSession session, Locale o) throws Exception {
031      return o == null ? null : o.toLanguageTag();
032   }
033
034   @Override /* ObjectSwap */
035   public Locale unswap(BeanSession session, String o, ClassMeta<?> hint) throws Exception {
036      return o == null ? null : Locale.forLanguageTag(o);
037   }
038}