UniqueIDGenerator.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2024 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.openspcoop2.utils.date;


/**
 * Classe per la produzione di un uniqueID
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class UniqueIDGenerator {

	private static long serialNumber = 0;
	/**
	 * Ritorna un numero seriale univoco
	 * 
	 * @return un numero seriale univoco
	 */
	public static synchronized String getUniqueID(){
		if((UniqueIDGenerator.serialNumber+1) > Long.MAX_VALUE){
			UniqueIDGenerator.serialNumber = 0;
		} 
		UniqueIDGenerator.serialNumber++;
		return "T:"+DateManager.getTimeMillis() +"_S:" +UniqueIDGenerator.serialNumber;
	}
	
}