content: /*
   * 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.ambari.server.utils;
  
  import java.util.List;
  import java.util.Map;
  import java.util.TreeMap;
  
  import javax.xml.bind.annotation.adapters.XmlAdapter;
  
  public class JaxbMapKeyListAdapter extends
      XmlAdapter<JaxbMapKeyList[], Map<String, List<String>>> {
  
    @Override
    public JaxbMapKeyList[] marshal(Map<String, List<String>> map)
        throws Exception {
      if (map==null) {
        return null;
      }
      JaxbMapKeyList[] list = new JaxbMapKeyList[map.size()] ;
      int index = 0;
      for (Map.Entry<String, List<String>> stringListEntry : map.entrySet()) {
        JaxbMapKeyList jaxbMap = new JaxbMapKeyList(stringListEntry.getKey(), stringListEntry.getValue());
        list[index++] = jaxbMap;
      }
      return list;
    }
  
    @Override
    public Map<String, List<String>> unmarshal(JaxbMapKeyList[] list)
        throws Exception {
      if (list == null) {
        return null;
      }
      Map<String, List<String>> m = new TreeMap<>();
      for (JaxbMapKeyList jaxbMap : list) {
        m.put(jaxbMap.key, jaxbMap.value);
      }
      return m;
    }
  }
  