| /* |
| * 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.serversetup; |
| |
| import java.util.Properties; |
| |
| /** In general we just need a singleton ServerSetup, that |
| * uses System properties for its configuration - this class |
| * supplies that. |
| */ |
| public class ServerSetupSingleton { |
| |
| /** Property name of the ServerSetup class that we instantiate */ |
| public static final String CLASS_NAME_PROP = ServerSetup.PROP_NAME_PREFIX + ".class.name"; |
| |
| private static ServerSetup instance; |
| |
| /** Create an instance based on the {@CLASS_NAME_PROP) |
| * property if needed and return it. |
| * |
| * @param config Ignored unless an instance is created |
| */ |
| public static ServerSetup instance(Properties config) throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| if(instance == null) { |
| synchronized (ServerSetupSingleton.class) { |
| if(instance == null) { |
| final String className = config.getProperty(CLASS_NAME_PROP); |
| if(className == null) { |
| throw new IllegalArgumentException("Missing config property: " + CLASS_NAME_PROP); |
| } |
| instance = (ServerSetup) |
| ServerSetupSingleton.class.getClassLoader() |
| .loadClass(className) |
| .newInstance(); |
| instance.setConfig(config); |
| } |
| } |
| } |
| return instance; |
| } |
| |
| /** Same as no-parameter instance() method, but uses System properties |
| * to create its instance. |
| */ |
| public static ServerSetup instance() throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| return instance(System.getProperties()); |
| } |
| } |