| /* |
| * 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.sling.testing.junit.rules.instance.util; |
| |
| import java.util.HashSet; |
| import java.util.Random; |
| import java.util.Set; |
| |
| public class ContextPathAllocator { |
| |
| private static Set<String> allocatedContextPaths; |
| |
| static { |
| allocatedContextPaths = new HashSet<String>(); |
| } |
| |
| public String allocateContextPath() { |
| while (true) { |
| String contextPath = generateContextPath(); |
| |
| boolean contextPathAdded = checkAndAdd(contextPath); |
| |
| if (contextPathAdded) { |
| return "/" + contextPath; |
| } |
| } |
| } |
| |
| public String generateContextPath() { |
| int start = (int) 'a', end = (int) 'z'; |
| |
| String contextPath = ""; |
| |
| Random random = new Random(); |
| |
| for (int i = 0; i < 8; i++) { |
| int next = start + random.nextInt(end - start); |
| contextPath += Character.toString((char) next); |
| } |
| |
| return contextPath; |
| } |
| |
| public synchronized boolean checkAndAdd(String contextPath) { |
| return allocatedContextPaths.add(contextPath); |
| } |
| |
| } |