| /* |
| * 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.synapse; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.synapse.config.SynapseConfigUtils; |
| |
| import java.io.File; |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| |
| /** |
| * Factory method for create a SynapseController instance |
| */ |
| public class SynapseControllerFactory { |
| |
| private static final Log log = LogFactory.getLog(SynapseControllerFactory.class); |
| |
| /** |
| * Create a SynapseController instance based on information in the ServerConfigurationInformation |
| * |
| * @param information ServerConfigurationInformation instance |
| * @return SynapseController instance |
| */ |
| public static SynapseController createSynapseController( |
| ServerConfigurationInformation information) { |
| validate(information); |
| return loadSynapseController(information); |
| } |
| |
| private static SynapseController loadSynapseController( |
| ServerConfigurationInformation information) { |
| |
| String provider = information.getServerControllerProvider(); |
| try { |
| Class aClass = SynapseControllerFactory.class.getClassLoader().loadClass(provider); |
| Object instance = aClass.newInstance(); |
| |
| if (instance != null && instance instanceof SynapseController) { |
| return (SynapseController) instance; |
| } else { |
| handleFatal("Invalid class as SynapseController : Class Name : " + provider); |
| } |
| |
| } catch (ClassNotFoundException e) { |
| handleFatal("A SynapseController cannot be found for class name : " + provider, e); |
| } catch (IllegalAccessException e) { |
| handleFatal("Error creating a instance from class : " + provider, e); |
| } catch (InstantiationException e) { |
| handleFatal("Error creating a instance from class : " + provider, e); |
| } |
| return null; |
| } |
| |
| /** |
| * Validate core settings for startup |
| * |
| * @param information ServerConfigurationInformation to be validated |
| */ |
| private static void validate(ServerConfigurationInformation information) { |
| |
| if (information == null) { |
| handleFatal("Server Configuration Information is null"); |
| } else { |
| |
| validatePath("Synapse home", information.getSynapseHome()); |
| if (information.isCreateNewInstance()) { |
| validatePath("Axis2 repository", information.getAxis2RepoLocation()); |
| validatePath("axis2.xml location", information.getAxis2Xml()); |
| } |
| validatePath("synapse.xml location", information.getSynapseXMLLocation()); |
| |
| String serverName = information.getServerName(); |
| if (serverName == null) { |
| try { |
| serverName = InetAddress.getLocalHost().getHostName(); |
| } catch (UnknownHostException ignore) {} |
| log.info("The server name was not specified, defaulting to : " + serverName); |
| } else { |
| log.info("Using server name : " + serverName); |
| } |
| |
| if (log.isDebugEnabled()) { |
| log.debug("Using Server Configuration As : " + information); |
| } |
| |
| log.info("The timeout handler will run every : " + |
| (SynapseConfigUtils.getTimeoutHandlerInterval() / 1000) + "s"); |
| } |
| } |
| |
| private static void validatePath(String msgPre, String path) { |
| if (path == null) { |
| handleFatal("The " + msgPre + " must be set as a system property or init-parameter"); |
| } else if (!new File(path).exists()) { |
| handleFatal("The " + msgPre + " " + path + " doesn't exist"); |
| } else { |
| log.info("Using " + msgPre + " : " + new File(path).getAbsolutePath()); |
| } |
| } |
| |
| private static void handleFatal(String msg) { |
| log.fatal(msg); |
| throw new SynapseException(msg); |
| } |
| |
| private static void handleFatal(String msg, Exception e) { |
| log.fatal(msg, e); |
| throw new SynapseException(msg, e); |
| } |
| } |