PRNGFactory.java

/*
 * JASA Java Auction Simulator API
 * Copyright (C) 2013 Steve Phelps
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 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 General Public License for more details.
 */

package net.sourceforge.jabm.prng;

import org.apache.log4j.Logger;

import cern.jet.random.engine.RandomEngine;

//import ec.util.ParamClassLoadException;
//import ec.util.Parameter;
//import ec.util.ParameterDatabase;

/**
 * @author Steve Phelps
 * @version $Revision: 16 $
 */

public abstract class PRNGFactory {

	public static final String P_DEF_BASE = "prngfactory";

	protected static PRNGFactory currentFactory = new MT();

	static Logger logger = Logger.getLogger(PRNGFactory.class);

//	public static void setup(ParameterDatabase parameters, Parameter base) {
//		try {
//			PRNGFactory.currentFactory = (PRNGFactory) parameters
//			    .getInstanceForParameter(base, new Parameter(P_DEF_BASE),
//			        PRNGFactory.class);
//		} catch (ParamClassLoadException e) {
//			logger.warn(e.getMessage());
//		}
//	}

	/**
	 * Get the concrete factory.
	 */
	public static PRNGFactory getFactory() {
		return currentFactory;
	}

	public abstract RandomEngine create();

	public abstract RandomEngine create(long seed);

	public abstract String getDescription();

}