framehandler.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/examples/FrameHandler.java,v $
 * $Revision: 1.3 $
 * $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.examples;

import jacomma.platform.core.*;
import jacomma.icm.type.*;

import java.awt.Frame;
import java.util.List;
import java.io.Serializable;

/**
 * TBA
 **/
public class FrameHandler implements Agent.MessageHandler {
	
	public FrameHandler(){}

	public void onMessage( Agent ag, Message msg ) {
		Frame f = (Frame)((List)msg.getContent()).get( 1 );
		f.pack();
		f.show();
	}
	
	public static MessagePattern makePattern() {
		return MessagePattern.createPattern( List.class, new Serializable() {
				public boolean equals( Object obj ) {
					try {
						List l = (List)((Message)obj).getContent();
						return l.get( 0 ).equals( new Symbol( "show" ) )
							&& l.get( 1 ) instanceof Frame;
					} catch ( Exception exc ) {
						return false;
					}
				}
			});
	}
	
}