| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License , |
| Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS , |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND , |
| either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.myfaces.tobago.internal.util; |
| |
| import java.security.SecureRandom; |
| import java.util.Base64; |
| |
| /** |
| * Helps to get a random string. |
| */ |
| public class RandomUtils { |
| |
| private static final SecureRandom RANDOM = new SecureRandom(); |
| |
| private static final int SECRET_LENGTH = 16; |
| |
| private static String encodeBase64(final byte[] bytes) { |
| return Base64.getEncoder().encodeToString(bytes); |
| } |
| |
| public static String nextString() { |
| final byte[] bytes = new byte[SECRET_LENGTH]; |
| RANDOM.nextBytes(bytes); |
| return encodeBase64(bytes); |
| } |
| |
| } |