agentthreadgroup.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/engine/AgentThreadGroup.java,v $
 * $Revision: 1.4 $
 * $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.engine;

import jacomma.util.Environment;

import java.util.Map;
import java.util.Iterator;

/**
 * TBA
 **/
class AgentThreadGroup extends ThreadGroup {
	
	java.util.HashSet noncritical_;
	AgentMonitor mon_;
	
	AgentThreadGroup( AgentMonitor mon ) {
		super( "Agents" );
		mon_ = mon;
		_initExceptions();
	}
	
	void _initExceptions() {
		// Load critical exceptions from the property file
		noncritical_ = new java.util.HashSet();
		Map p = Environment.loadProperties( AgentThreadGroup.class );
		for ( Iterator it = p.keySet().iterator(); it.hasNext(); ) try {
			noncritical_.add( Class.forName( (String)it.next() ) );
		} catch ( Exception exc ) {
			exc.printStackTrace();
		}
		
	}
	
	public void uncaughtException( Thread thread, Throwable t ) {
		// can we handle it?
		if ( t instanceof Error ) {
			super.uncaughtException( thread, t );
			mon_.onError( thread, t );
		} else 	if ( noncritical_.contains( t.getClass() ) )
			mon_.onException( thread, t );
		else
			mon_.onCriticalException( thread, t );

	}
	
}