1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.giraph.writable.kryo.serializers; 19 20 import java.util.Arrays; 21 import java.util.List; 22 23 import com.esotericsoftware.kryo.Kryo; 24 import com.esotericsoftware.kryo.Serializer; 25 import com.esotericsoftware.kryo.io.Input; 26 import com.esotericsoftware.kryo.io.Output; 27 28 /** 29 * Special serializer for Arrays.asList() as they can not be 30 * deserialized in a standard way. 31 * 32 * https://groups.google.com/forum/#!msg/kryo-users/2lXTCEOSxA0/gLzIZRtaNCUJ 33 */ 34 public class ArraysAsListSerializer extends Serializer<List> { 35 @Override 36 public void write(Kryo kryo, Output output, List object) { 37 kryo.writeObject(output, object.toArray(new Object[object.size()])); 38 } 39 40 @Override 41 public List read(Kryo kryo, Input input, Class<List> type) { 42 return Arrays.asList(kryo.readObject(input, Object[].class)); 43 } 44 }