package org.apache.commons.jcs.utils.serialization;
/*
* 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.
*/
import org.apache.commons.jcs.engine.behavior.IElementSerializer;
import org.apache.commons.jcs.io.ObjectInputStreamClassLoaderAware;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
* Performs default serialization and de-serialization.
* <p>
* @author Aaron Smuts
*/
public class StandardSerializer
implements IElementSerializer
{
/**
* Serializes an object using default serialization.
* <p>
* @param obj
* @return byte[]
* @throws IOException
*/
@Override
public <T> byte[] serialize( T obj )
throws IOException
{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream( baos );
try
{
oos.writeObject( obj );
}
finally
{
oos.close();
}
return baos.toByteArray();
}
/**
* Uses default de-serialization to turn a byte array into an object. All exceptions are
* converted into IOExceptions.
* <p>
* @param data
* @return Object
* @throws IOException
* @throws ClassNotFoundException
*/
@Override
public <T> T deSerialize( byte[] data, ClassLoader loader )
throws IOException, ClassNotFoundException
{
ByteArrayInputStream bais = new ByteArrayInputStream( data );
BufferedInputStream bis = new BufferedInputStream( bais );
ObjectInputStream ois = new ObjectInputStreamClassLoaderAware( bis, loader );
try
{
@SuppressWarnings("unchecked") // Need to cast from Object
T readObject = (T) ois.readObject();
return readObject;
}
finally
{
ois.close();
}
}
}