/*
* JBoss, Home of Professional Open Source.
* Copyright 2000 - 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.cache.marshall;
import org.jboss.util.stream.MarshalledValueInputStream;
import org.jboss.util.stream.MarshalledValueOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
/**
* Utility methods related to marshalling and unmarshalling objects.
*
* @author <a href="mailto://brian.stansberry@jboss.com">Brian Stansberry</a>
* @version $Revision$
*/
public class MarshallUtil
{
/**
* Creates an object from a byte buffer using
* {@link MarshalledValueInputStream}.
*
* @param bytes serialized form of an object
* @return the object, or <code>null</code> if <code>bytes</code>
* is <code>null</code>
*/
public static Object objectFromByteBuffer(byte[] bytes) throws Exception
{
if (bytes == null)
{
return null;
}
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
MarshalledValueInputStream input = new MarshalledValueInputStream(bais);
Object result = input.readObject();
input.close();
return result;
}
/**
* Creates an object from a byte buffer using
* {@link MarshalledValueInputStream}.
*
* @param bytes serialized form of an object
* @return the object, or <code>null</code> if <code>bytes</code>
* is <code>null</code>
*/
public static Object objectFromByteBuffer(InputStream bytes) throws Exception
{
if (bytes == null)
{
return null;
}
MarshalledValueInputStream input = new MarshalledValueInputStream(bytes);
Object result = input.readObject();
input.close();
return result;
}
/**
* Serializes an object into a byte buffer using
* {@link org.jboss.util.stream.MarshalledValueOutputStream}.
*
* @param obj an object that implements Serializable or Externalizable
* @return serialized form of the object
*/
public static byte[] objectToByteBuffer(Object obj) throws Exception
{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
MarshalledValueOutputStream out = new MarshalledValueOutputStream(baos);
out.writeObject(obj);
out.close();
return baos.toByteArray();
}
}