001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019 020package lucee.runtime.functions.other; 021 022 023import lucee.runtime.PageContext; 024import lucee.runtime.ext.function.Function; 025 026public final class CreateUniqueId implements Function { 027 028 private static long counter=0; 029 030 031 /** 032 * method to invoke the function 033 * @param pc 034 * @return UUID String 035 */ 036 public static String call(PageContext pc ) { 037 return invoke(); 038 } 039 public static synchronized String invoke() { 040 counter++; 041 if(counter<0) counter=1; 042 return Long.toString(counter, Character.MAX_RADIX); 043 } 044}