PwdGenerator.java |
1 /** 2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23 package com.liferay.util; 24 25 import com.liferay.portal.kernel.util.StringMaker; 26 27 /** 28 * <a href="PwdGenerator.java.html"><b><i>View Source</i></b></a> 29 * 30 * @author Brian Wing Shun Chan 31 * 32 */ 33 public class PwdGenerator { 34 35 public static String KEY1 = "0123456789"; 36 37 public static String KEY2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; 38 39 public static String KEY3 = "abcdefghijklmnopqrstuvwxyz"; 40 41 public static String getPinNumber() { 42 return _getPassword(KEY1, 4); 43 } 44 45 public static String getPassword() { 46 return getPassword(8); 47 } 48 49 public static String getPassword(int length) { 50 return _getPassword(KEY1 + KEY2 + KEY3, length); 51 } 52 53 public static String getPassword(String key, int length) { 54 return _getPassword(key, length); 55 } 56 57 private static String _getPassword(String key, int length) { 58 StringMaker sm = new StringMaker(); 59 60 for (int i = 0; i < length; i++) { 61 sm.append(key.charAt((int)(Math.random() * key.length()))); 62 } 63 64 return sm.toString(); 65 } 66 67 }