remoteagentevent.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/platform/core/RemoteAgentEvent.java,v $
 * $Revision: 1.5 $
 * $Date: 2000/10/28 20:09:08 $
 *
 * 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.platform.core;

import jacomma.icm.type.Handle;
import jacomma.icm.type.Symbol;
import jacomma.icm.type.Request;

import java.util.HashMap;

/**
 * TBA
 **/
public class RemoteAgentEvent {
	
	public static final int REGISTERED = 0;
	public static final int DEREGISTERED = 1;
	public static final int DETACHED = 2;
	public static final int ATTACHED = 3;
	
	Handle handle_;
	int type_;

	public RemoteAgentEvent( Handle handle, int type ) {
		handle_ = handle;
		type_ = type;
	}

	public Handle getHandle() {
		return handle_;
	}

	public int getType() {
		return type_;
	}

	public String toString() {
		return "RemoteAgentEvent: [" + handle_ + ":" + nameOf( type_ ) + "]";
	}
	
	public static final String nameOf( int type ) {
		switch( type ) {
		case REGISTERED: return "REGISTERED";
		case DEREGISTERED: return "DEREGISTERED";
		case DETACHED: return "DETACHED";
		case ATTACHED: return "ATTACHED";
		default: return "??? Bogus Event";
		}
	}

	static final HashMap syms_;
	static {
		syms_ = new HashMap( 6 );
		syms_.put( Request.icmRegisterAgent, new Integer( REGISTERED ) );
		syms_.put( Request.icmDeregisterAgent, new Integer( DEREGISTERED ) );
		syms_.put( Request.icmAttachAgent, new Integer( ATTACHED ) );
		syms_.put( Request.icmDetachAgent, new Integer( DETACHED ) );
	}
	
	public static final RemoteAgentEvent createEvent( Symbol evt, Handle han ) {
		return new RemoteAgentEvent( han, ((Integer)syms_.get( evt )).intValue() );
	}

}