| /* |
| * 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.openejb.util; |
| |
| import org.apache.openejb.core.LocalInitialContext; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class ServiceManagerProxy { |
| |
| static Logger logger = Logger.getInstance(LogCategory.OPENEJB_STARTUP, ServiceManagerProxy.class); |
| |
| private final Object serviceManager; |
| private final Class serviceManagerClass; |
| |
| |
| public class AlreadyStartedException extends Exception { |
| public AlreadyStartedException(String s) { |
| super(s); |
| } |
| } |
| |
| public ServiceManagerProxy() throws AlreadyStartedException { |
| ClassLoader classLoader = Thread.currentThread().getContextClassLoader(); |
| |
| try { |
| serviceManagerClass = classLoader.loadClass("org.apache.openejb.server.ServiceManager"); |
| } catch (ClassNotFoundException e) { |
| String msg = "Enabling option '" + LocalInitialContext.OPENEJB_EMBEDDED_REMOTABLE + "' requires class 'org.apache.openejb.server.ServiceManager' to be available. Make sure you have the openejb-server-*.jar in your classpath and at least one protocol implementation such as openejb-ejbd-*.jar."; |
| throw new IllegalStateException(msg, e); |
| } |
| |
| Method get = getMethod("get"); |
| Method getManager = getMethod("getManager"); |
| |
| if (invoke(get, null) != null) throw new AlreadyStartedException("Server services already started"); |
| |
| serviceManager = invoke(getManager, null); |
| |
| logger.info("Initializing network services"); |
| |
| Method init = getMethod("init"); |
| |
| invoke(init, serviceManager); |
| } |
| |
| private Method getMethod(String name, Class... parameterTypes) { |
| try { |
| return serviceManagerClass.getMethod(name, parameterTypes); |
| } catch (NoSuchMethodException e) { |
| throw new IllegalStateException("Cannot load the ServiceManager", e); |
| } |
| } |
| |
| |
| private Object invoke(Method method, Object obj, Object... args) { |
| try { |
| return method.invoke(obj, args); |
| } catch (IllegalAccessException e) { |
| throw new IllegalStateException(e); |
| } catch (InvocationTargetException e) { |
| throw new IllegalStateException("Failed executing ServiceManager." + method.getName(), e.getCause()); |
| } |
| } |
| |
| public void start() { |
| |
| logger.info("Initializing network services"); |
| |
| Method start = getMethod("start", boolean.class); |
| |
| invoke(start, serviceManager, false); |
| } |
| |
| public void stop() { |
| logger.info("Stopping network services"); |
| |
| Method stop = getMethod("stop"); |
| |
| invoke(stop, serviceManager); |
| |
| try { |
| Thread.sleep(3000); |
| } catch (InterruptedException e) { |
| Thread.interrupted(); |
| } |
| } |
| } |