jasima.shopSim.prioRules.weighted.WSPT Maven / Gradle / Ivy

/*******************************************************************************
 * This file is part of jasima, v1.3, the Java simulator for manufacturing and 
 * logistics.
 *  
 * Copyright (c) 2015 		jasima solutions UG
 * Copyright (c) 2010-2015 Torsten Hildebrandt and jasima contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 *******************************************************************************/
package jasima.shopSim.prioRules.weighted;

import jasima.shopSim.core.PR;
import jasima.shopSim.core.PrioRuleTarget;
import jasima.shopSim.core.PriorityQueue;

/**
 * This class implements the Weighted Shortest Processing Time rule.
 * 
 * @author Christoph Pickardt, 2011-11-16
 * @version "$Id: WSPT.java 753 2015-07-27 15:29:49Z [email protected] $"
 */
public class WSPT extends PR {

	private static final long serialVersionUID = -3380151419287286713L;

	@Override
	public double calcPrio(PrioRuleTarget job) {
		double p = job.getCurrentOperation().procTime;
		if (p > 0)
			return job.getWeight() / p;
		else
			return PriorityQueue.MAX_PRIO;
	}

}