/*
 * 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 java.util.Arrays;
import java.util.List;

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;

/**
 * Special serializer for Arrays.asList() as they can not be
 * deserialized in a standard way.
 *
 * https://groups.google.com/forum/#!msg/kryo-users/2lXTCEOSxA0/gLzIZRtaNCUJ
 */
public class ArraysAsListSerializer extends Serializer<List> {
  @Override
  public void write(Kryo kryo, Output output, List object) {
    kryo.writeObject(output, object.toArray(new Object[object.size()]));
  }

  @Override
  public List read(Kryo kryo, Input input, Class<List> type) {
    return Arrays.asList(kryo.readObject(input, Object[].class));
  }
}
