/*
* Copyright 2013 the original author or authors.
*
* Licensed 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.springframework.xd.dirt.integration.bus.serializer.kryo;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.springframework.util.Assert;
import org.springframework.xd.dirt.integration.bus.serializer.AbstractCodec;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
/**
*
* @author David Turanski
*/
abstract class AbstractKryoCodec<T> extends AbstractCodec<T> {
/**
* Serialize an object using an existing output stream
*
* @param object the object to be serialized
* @param outputStream the output stream, e.g. a FileOutputStream
* @throws IOException
*/
@Override
public void serialize(T object, OutputStream outputStream) throws IOException {
Assert.notNull(outputStream, "outputStream cannot be null");
Output output = new Output(outputStream);
doSerialize(object, getKryoInstance(), output);
output.close();
}
/**
* Deserialize an object when the type is known
*
* @param inputStream the input stream containing the serialized object
* @return the object
* @throws IOException
*/
@Override
public T deserialize(InputStream inputStream) throws IOException {
Input input = new Input(inputStream);
T result = doDeserialize(getKryoInstance(), input);
input.close();
return result;
}
/**
* Deserialize an object when the type is known
*
* @param bytes the byte array containing the serialized object
* @return the object
* @throws IOException
*/
@Override
public T deserialize(byte[] bytes) throws IOException {
return deserialize(new ByteArrayInputStream(bytes));
}
protected Kryo getKryoInstance() {
return new Kryo();
}
protected abstract void doSerialize(T object, Kryo kryo, Output output);
protected abstract T doDeserialize(Kryo kryo, Input input);
}