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.Map;
  import java.util.TreeMap;
  
  import javax.xml.bind.annotation.adapters.XmlAdapter;
  
  public class JaxbMapKeyMapAdapter extends
      XmlAdapter<JaxbMapKeyMap[], Map<String, Map<String, String>>> {
  
    private static JaxbMapKeyValAdapter mapAdapter = new JaxbMapKeyValAdapter();
  
    @Override
    public JaxbMapKeyMap[] marshal(Map<String, Map<String, String>> map)
        throws Exception {
      if (map == null) {
        return null;
      }
      JaxbMapKeyMap[] list = new JaxbMapKeyMap[map.size()];
      int index=0;
      for (Map.Entry<String, Map<String, String>> stringMapEntry : map.entrySet()) {
        Map<String, String> value = stringMapEntry.getValue();
        JaxbMapKeyVal[] keyValList = mapAdapter.marshal(value);
        list[index++] = new JaxbMapKeyMap(stringMapEntry.getKey(), keyValList);
      }
      return list;
    }
  
    @Override
    public Map<String, Map<String, String>> unmarshal(JaxbMapKeyMap[] list)
        throws Exception {
      if (list == null) {
        return null;
      }
      Map<String, Map<String, String>> map = new TreeMap<>();
      for (JaxbMapKeyMap jaxbkeyMap : list) {
        map.put(jaxbkeyMap.key, mapAdapter.unmarshal(jaxbkeyMap.value));
      }
      return map;
    }
  }
  