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.transforms;
014
015import java.util.*;
016
017import org.apache.juneau.*;
018import org.apache.juneau.parser.*;
019import org.apache.juneau.transform.*;
020
021/**
022 * Transforms {@link Date Dates} to {@link Map Maps} of the format <tt>{value:long}</tt>.
023 */
024@SuppressWarnings("rawtypes")
025public class DateMapSwap extends PojoSwap<Date,Map> {
026
027   /**
028    * Converts the specified {@link Date} to a {@link Map}.
029    */
030   @Override /* PojoSwap */
031   public Map swap(BeanSession session, Date o) {
032      if (o == null)
033         return null;
034      ObjectMap m = new ObjectMap();
035      m.put("time", o.getTime());
036      return m;
037   }
038
039   /**
040    * Converts the specified {@link Map} to a {@link Date}.
041    */
042   @Override /* PojoSwap */
043   public Date unswap(BeanSession session, Map o, ClassMeta<?> hint) throws Exception {
044      Class<?> c = (hint == null ? java.util.Date.class : hint.getInnerClass());
045      long l = Long.parseLong(((Map<?,?>)o).get("time").toString());
046      if (c == java.util.Date.class)
047         return new java.util.Date(l);
048      if (c == java.sql.Date.class)
049         return new java.sql.Date(l);
050      if (c == java.sql.Time.class)
051         return new java.sql.Time(l);
052      if (c == java.sql.Timestamp.class)
053         return new java.sql.Timestamp(l);
054      throw new ParseException("DateMapSwap is unable to narrow object of type ''{0}''", c);
055   }
056}