| package org.apache.pirk.responder.wideskies; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.ServiceConfigurationError; |
| import java.util.ServiceLoader; |
| |
| import org.apache.pirk.responder.wideskies.spi.ResponderPlugin; |
| import org.apache.pirk.utils.PIRException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ResponderService |
| { |
| private static final Logger logger = LoggerFactory.getLogger(ResponderService.class); |
| |
| // Singleton for the responder service. |
| private static ResponderService service; |
| private ServiceLoader<ResponderPlugin> loader; |
| |
| public static synchronized ResponderService getInstance() |
| { |
| if (service == null) |
| { |
| service = new ResponderService(); |
| } |
| return service; |
| } |
| |
| private ResponderService() |
| { |
| loader = ServiceLoader.load(ResponderPlugin.class); |
| } |
| |
| public ResponderPlugin getResponder(String platformName) throws PIRException |
| { |
| try |
| { |
| for (ResponderPlugin plugin : loader) |
| { |
| if (platformName.equalsIgnoreCase(plugin.getPlatformName())) |
| { |
| logger.debug("Found {}, in {}", platformName, plugin.getClass().getName()); |
| return plugin; |
| } |
| } |
| } catch (ServiceConfigurationError e) |
| { |
| logger.error("ResponderPlugin configuration error {}", e); |
| throw new PIRException(e); |
| } |
| return null; |
| } |
| |
| } |