/*
    * 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.giraph.writable.kryo.serializers;
  
  
  import com.esotericsoftware.kryo.Kryo;
  import com.esotericsoftware.kryo.io.Input;
  import com.esotericsoftware.kryo.serializers.MapSerializer;
  import com.google.common.collect.ImmutableMap;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Serializer for {@link ImmutableMap}
   */
  public class ImmutableMapSerializer extends MapSerializer {
    @Override
    public Map read(Kryo kryo, Input input, Class<Map> type) {
      Map map = super.read(kryo, input,
          (Class<Map>) ((Object) HashMap.class));
      return ImmutableMap.copyOf(map);
    }
  }