/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and others contributors as indicated
* by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006, JBoss Inc.
*/
package org.jboss.internal.soa.esb.message.format.serialized;
import org.jboss.soa.esb.message.Message;
import org.jboss.soa.esb.util.ContextObjectInputStream;
import org.jboss.internal.soa.esb.message.format.MessageSerializer;
import java.io.*;
/**
* Java Message serializer.
*
* @author <a href="mailto:tom.fennelly@jboss.com">tom.fennelly@jboss.com</a>
*/
public class JavaMessageSerializer extends MessageSerializer {
public void serialize(Message message, OutputStream outStream) throws IOException {
assertMessageInstanceOK(message);
// Write the preamble....
outStream.write(MessageSerializer.PREAMBLE_JAVA);
// Write the message...
ObjectOutputStream output = new ObjectOutputStream(outStream);
try {
output.writeObject(message);
} finally {
output.close();
}
}
public Message deserialize(InputStream inStream) throws IOException {
// Read and test the preamble...
if(inStream.read() != MessageSerializer.PREAMBLE_JAVA) {
throw new IOException("Cannot deserialize message. Unrecognized message preamble.");
}
ObjectInputStream input = new ContextObjectInputStream(inStream);
try {
return (Message) input.readObject();
} catch (ClassNotFoundException e) {
throw (IOException) (new IOException("Unable to deserialize message instance.").initCause(e));
} finally {
input.close();
}
}
public static boolean isJavaMessage(Message message) {
return message instanceof MessageImpl;
}
private void assertMessageInstanceOK(Message message) throws IOException {
if (!(isJavaMessage(message))) {
throw new IOException("Invalid Message instance. Expecting instance of '" + MessageImpl.class.getName() + "'.");
}
}
}