| /** |
| * 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 backtype.storm.serialization; |
| |
| import backtype.storm.utils.ListDelegate; |
| import com.esotericsoftware.kryo.Kryo; |
| import com.esotericsoftware.kryo.io.Output; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class KryoValuesSerializer { |
| Kryo _kryo; |
| ListDelegate _delegate; |
| Output _kryoOut; |
| |
| public KryoValuesSerializer(Map conf) { |
| _kryo = SerializationFactory.getKryo(conf); |
| _delegate = new ListDelegate(); |
| _kryoOut = new Output(2000, 2000000000); |
| } |
| |
| public void serializeInto(List<Object> values, Output out) throws IOException { |
| // this ensures that list of values is always written the same way, regardless |
| // of whether it's a java collection or one of clojure's persistent collections |
| // (which have different serializers) |
| // Doing this lets us deserialize as ArrayList and avoid writing the class here |
| _delegate.setDelegate(values); |
| _kryo.writeObject(out, _delegate); |
| } |
| |
| public byte[] serialize(List<Object> values) throws IOException { |
| _kryoOut.clear(); |
| serializeInto(values, _kryoOut); |
| return _kryoOut.toBytes(); |
| } |
| |
| public byte[] serializeObject(Object obj) { |
| _kryoOut.clear(); |
| _kryo.writeClassAndObject(_kryoOut, obj); |
| return _kryoOut.toBytes(); |
| } |
| } |