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 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 * <h5 class='section'>See Also:</h5><ul>
027 *    <li class='link'><a class="doclink" href="../../../../index.html#jm.Swaps">Swaps</a>
028
029 * </ul>
030 */
031@SuppressWarnings({"unchecked","rawtypes"})
032public class EnumerationSwap extends ObjectSwap<Enumeration,List> {
033
034   /**
035    * Converts the specified {@link Enumeration} to a {@link List}.
036    */
037   @Override /* ObjectSwap */
038   public List swap(BeanSession session, Enumeration o) {
039      List l = new LinkedList();
040      while (o.hasMoreElements())
041         l.add(o.nextElement());
042      return l;
043   }
044}