/**
* Copyright (C)
* 2008 Jeremy Thomerson <jeremy@thomersonfamily.com>
* 2012 Michael Mosmann <michael@mosmann.de>
*
* 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 org.wicketstuff.pageserializer.fast;
import org.apache.wicket.serialize.ISerializer;
import org.wicketstuff.pageserializer.common.listener.ISerializationListener;
import de.ruedigermoeller.serialization.FSTConfiguration;
import de.ruedigermoeller.serialization.FSTObjectOutput;
import de.ruedigermoeller.serialization.FSTSerialisationListener;
public class FastWicketSerializer implements ISerializer
{
private final FSTConfiguration fastSerializationConfig;
private ISerializationListener listener;
/**
* Build a Fast serializer with a default sensible configuration.
*/
public FastWicketSerializer()
{
this(getDefaultFSTConfiguration());
}
/**
* Build a Fast serializer with a custom configuration.
*/
public FastWicketSerializer(FSTConfiguration config)
{
fastSerializationConfig = config;
}
public static final FSTConfiguration getDefaultFSTConfiguration()
{
FSTConfiguration config = FSTConfiguration.createDefaultConfiguration();
config.setIgnoreSerialInterfaces(false);
return config;
}
@Override
public byte[] serialize(Object object)
{
Exception exception = null;
try
{
FSTObjectOutput out = fastSerializationConfig.getObjectOutput();
if (listener != null)
{
out.setListener(new ListenerAdapter(listener));
listener.begin(object);
}
out.writeObject(object);
out.setListener(null);
return out.getCopyOfWrittenBuffer();
}
catch (Exception e)
{
exception = e;
throw new FastWicketSerialException(String.format(
"Unable to serialize the object %1$s", object), e);
}
finally
{
if (listener != null)
{
listener.end(object, exception);
}
}
}
/**
* Define a listener to inspect the serialization process.
*
* @param listener
* @return the Serializer for chaining.
*/
public FastWicketSerializer setListener(ISerializationListener listener)
{
this.listener = listener;
return this;
}
/**
* @return the listener used to inspect the serialization process.
*/
public ISerializationListener getListener()
{
return listener;
}
@Override
public Object deserialize(byte[] data)
{
try
{
return fastSerializationConfig.getObjectInput(data).readObject();
}
catch (Exception e)
{
throw new FastWicketSerialException("Unable to deserialize the data", e);
}
}
static class ListenerAdapter implements FSTSerialisationListener
{
private final ISerializationListener listener;
public ListenerAdapter(ISerializationListener listener)
{
this.listener = listener;
}
@Override
public void objectWillBeWritten(Object obj, int streamPosition)
{
listener.before(streamPosition, obj);
}
@Override
public void objectHasBeenWritten(Object obj, int oldStreamPosition, int streamPosition)
{
listener.after(streamPosition, obj);
}
}
}