| /* |
| * 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.aries.application.resolver.obr.impl; |
| |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * @version $Rev: 911397 $ $Date: 2010-02-18 13:41:27 +0000 (Thu, 18 Feb 2010) $ |
| */ |
| public class MapToDictionary extends Dictionary |
| { |
| /** |
| * Map source. |
| */ |
| private final Map m_map; |
| |
| public MapToDictionary(Map map) |
| { |
| m_map = map; |
| } |
| |
| public Enumeration elements() |
| { |
| if (m_map == null) { |
| return null; |
| } |
| return new IteratorToEnumeration(m_map.values().iterator()); |
| } |
| |
| public Object get(Object key) |
| { |
| if (m_map == null) { |
| return null; |
| } |
| return m_map.get(key); |
| } |
| |
| public boolean isEmpty() |
| { |
| if (m_map == null) { |
| return true; |
| } |
| return m_map.isEmpty(); |
| } |
| |
| public Enumeration keys() |
| { |
| if (m_map == null) { |
| return null; |
| } |
| return new IteratorToEnumeration(m_map.keySet().iterator()); |
| } |
| |
| public Object put(Object key, Object value) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public Object remove(Object key) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public int size() |
| { |
| if (m_map == null) { |
| return 0; |
| } |
| return m_map.size(); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return m_map != null ? m_map.toString() : "null"; |
| } |
| |
| private static class IteratorToEnumeration implements Enumeration |
| { |
| private final Iterator m_iter; |
| |
| public IteratorToEnumeration(Iterator iter) |
| { |
| m_iter = iter; |
| } |
| |
| public boolean hasMoreElements() |
| { |
| if (m_iter == null) |
| return false; |
| return m_iter.hasNext(); |
| } |
| |
| public Object nextElement() |
| { |
| if (m_iter == null) |
| return null; |
| return m_iter.next(); |
| } |
| } |
| |
| } |