/* Copyright (C) 2004 - 2008  db4objects Inc.  http://www.db4o.com

This file is part of the db4o open source object database.

db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

db4o 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 General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */
package com.db4o.internal.cs.messages;

import com.db4o.*;
import com.db4o.internal.*;
import com.db4o.internal.cs.*;
import com.db4o.reflect.generic.*;

public class MClassMeta extends MsgObject implements ServerSideMessage {
	public boolean processAtServer() {
		ObjectContainerBase stream = stream();
		unmarshall();
		try{
			synchronized (streamLock()) {
	            ClassInfo classMeta = (ClassInfo) readObjectFromPayLoad();
	            GenericClass genericClass = stream.getClassMetaHelper().classMetaToGenericClass(stream().reflector(), classMeta);
	            if (genericClass != null) {
	                
    				Transaction trans = stream.systemTransaction();
    
    				ClassMetadata yapClass = stream.produceClassMetadata(genericClass);
    				if (yapClass != null) {
    					stream.checkStillToSet();
    					yapClass.setStateDirty();
    					yapClass.write(trans);
    					trans.commit();
    					StatefulBuffer returnBytes = stream
    							.readWriterByID(trans, yapClass.getID());
    					write(Msg.OBJECT_TO_CLIENT.getWriter(returnBytes));
    					return true;
    				}
    			}
			}
		}catch(Exception e){
			if(Debug.atHome){
				e.printStackTrace();
			}
		}
		write(Msg.FAILED);
		return true;
	}

}
