/*
* Copyright 2008-2009 SHOP.COM
*
* 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 com.shop.cache.api.client.main;
import com.shop.util.chunked.ChunkedByteArray;
import com.shop.util.chunked.ChunkedByteArrayInputStream;
import com.shop.util.chunked.ChunkedByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
/**
* The default serializer implementation
*
* @author Jordan Zimmerman
*/
class DefaultSerializer implements SCSerializer
{
static class DeserializeFailure extends Exception
{
DeserializeFailure(String message)
{
super(message);
}
}
@Override
public SCDataBlock deserialize(ChunkedByteArray bytes) throws Exception
{
SCDataBlock block = new SCDataBlock();
block.data(bytes);
ObjectInputStream in = new ObjectInputStream(new GZIPInputStream(new ChunkedByteArrayInputStream(bytes)));
int fileVersion = in.readInt();
if ( fileVersion != FILE_VERSION )
{
throw new DeserializeFailure("Incorrect File Version: " + fileVersion);
}
block.versionNumber(in.readInt());
block.ttl(in.readLong());
block.key((String)in.readUTF());
block.object(in.readObject());
in.close();
return block;
}
@Override
public ChunkedByteArray serialize(SCDataBlock block) throws Exception
{
ChunkedByteArray chunked = new ChunkedByteArray();
ObjectOutputStream out = new ObjectOutputStream(new GZIPOutputStream(new ChunkedByteArrayOutputStream(chunked)));
out.writeInt(FILE_VERSION);
out.writeInt(block.getVersionNumber());
out.writeLong(block.getTTL());
out.writeUTF(block.getKey());
out.writeObject(block.getObject());
out.close();
chunked.lock();
return chunked;
}
private static final int FILE_VERSION = 0x00010001;
}