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.transform.*;
019
020/**
021 * Transforms {@link Enumeration Enumerations} to {@code List<Object>} objects.
022 *
023 * <p>
024 * This is a one-way transform, since {@code Enumerations} cannot be reconstituted.
025 */
026@SuppressWarnings({"unchecked","rawtypes"})
027public class EnumerationSwap extends PojoSwap<Enumeration,List> {
028
029   /**
030    * Converts the specified {@link Enumeration} to a {@link List}.
031    */
032   @Override /* PojoSwap */
033   public List swap(BeanSession session, Enumeration o) {
034      List l = new LinkedList();
035      while (o.hasMoreElements())
036         l.add(o.nextElement());
037      return l;
038   }
039}