objectwriter.java

Java Communicating Agents是一个用于开发网络反应式信息agent的框架

/*
 * $Source: /home/data/cvsroot/src/jacomma/icm/io/ObjectWriter.java,v $
 * $Revision: 1.8 $
 * $Date: 2000/10/28 20:09:07 $
 *
 * This file is part of the jacomma framework
 * Copyright (c) 2000 	Dimitrios Vyzovitis
 *			mailto:[e-mail]
 *			
 *
 *			
 *			
 *			
 *
 *	This library is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU Library General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This library 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 Library General Public License for more details.
 *
 *	You should have received a copy of the GNU Library General Public License
 *	along with this library; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, 
 *	Boston, MA  02111-1307  USA
 */

package jacomma.icm.io;

/**
 * TBA
 **/
public class ObjectWriter {
	
	protected java.io.OutputStream stream_;
	
	public ObjectWriter( java.io.OutputStream stream ) {
		stream_ = stream;
	}
	
	public void writeObject( Object obj ) throws java.io.IOException {
		writeObject( obj, null );
	}
	
	public synchronized void writeObject( Object obj, Object hint ) 
		throws java.io.IOException {

		ObjectEncoder enc = ObjectEncoder.Registry.instance.getEncoder( obj );
		if ( enc == null )
			throw new NoEncoderException( obj );
		
		EncObject eo = enc.encode( obj, hint );

		EncObjectWriter wr = EncObjectWriter.Registry.instance.getWriter( eo.getType() );
		if ( wr == null )
			throw new NoWriterException( eo );
				
		for( wr.start( eo, stream_ ); wr.hasNext(); wr.writeNext() );
		wr.putObject();

	}
	
	public void flush() throws java.io.IOException {
		stream_.flush();
	}
	
	public void close() throws java.io.IOException {
		stream_.close();
	}


}