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 **/
019package lucee.commons.lang;
020
021import java.io.IOException;
022
023
024public class KeyGenerator {
025        public static String createKey(String value) throws IOException{
026                // create a crossfoot of the string and change result in constealltion of the position
027                long sum=0;
028                for(int i=value.length()-1;i>=0;i--){
029                        sum+=(value.charAt(i))*((i%3+1)/2f);
030                }
031                return Md5.getDigestAsString(value)+":"+sum;
032        }
033        public static String createVariable(String value) throws IOException{
034                // create a crossfoot of the string and change result in constealltion of the position
035                long sum=0;
036                for(int i=value.length()-1;i>=0;i--){
037                        sum+=(value.charAt(i))*((i%3+1)/2f);
038                }
039                return "V"+Md5.getDigestAsString(value)+sum;
040        }
041}