| /* |
| * 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.uima.ducc.agent.deploy; |
| |
| import java.util.List; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.uima.ducc.common.component.AbstractDuccComponent; |
| import org.apache.uima.ducc.common.main.DuccService; |
| import org.apache.uima.ducc.transport.agent.IUimaPipelineAEComponent; |
| import org.apache.uima.ducc.transport.event.common.IProcessState.ProcessState; |
| |
| |
| public abstract class AbstractManagedService extends AbstractDuccComponent |
| implements ManagedService { |
| public static final String ManagedServiceNotificationInterval = "uima.process.notify.interval"; |
| private long notificationInterval = 5000; |
| protected ProcessState currentState = ProcessState.Undefined; |
| protected ProcessState previousState = ProcessState.Undefined; |
| // public static ManagedServiceContext serviceContext=null; |
| public boolean useJmx = false; |
| public ServiceStateNotificationAdapter serviceAdapter = null; |
| |
| public abstract void quiesceAndStop(); |
| public abstract void deploy(String[] args) throws Exception; |
| |
| protected AbstractManagedService(ServiceStateNotificationAdapter serviceAdapter, CamelContext context) { |
| super("UimaProcess", context); |
| this.serviceAdapter = serviceAdapter; |
| // serviceContext = new ManagedServiceContext(this); |
| } |
| /** |
| * @return the notificationInterval |
| */ |
| public long getNotificationInterval() { |
| return notificationInterval; |
| } |
| |
| /** |
| * @param notificationInterval |
| * the notificationInterval to set |
| */ |
| public void setNotificationInterval(long notificationInterval) { |
| this.notificationInterval = notificationInterval; |
| } |
| |
| |
| public void initialize() throws Exception { |
| |
| // ServiceShutdownHook shutdownHook = new ServiceShutdownHook(this); |
| // serviceDeployer); |
| // Runtime.getRuntime().addShutdownHook(shutdownHook); |
| // System.out.println("Managed Service Wrapper Registered Shutdown Hook"); |
| } |
| |
| public void notifyAgentWithStatus(ProcessState state) { |
| serviceAdapter.notifyAgentWithStatus(state); |
| } |
| public void notifyAgentWithStatus(ProcessState state, String message) { |
| serviceAdapter.notifyAgentWithStatus(state, message); |
| } |
| public void notifyAgentWithStatus(List<IUimaPipelineAEComponent> pipeline) { |
| serviceAdapter.notifyAgentWithStatus(pipeline); |
| } |
| protected void stopIt() { |
| if ( serviceAdapter != null ) { |
| //serviceAdapter.stop(); |
| } |
| } |
| /** |
| * Returns state of this process( INITIALIZING, RUNNING, FAILED, STOPPED ) |
| */ |
| public ProcessState getServiceState() { |
| return currentState; |
| } |
| @Override |
| public void start(DuccService service, String[] args) throws Exception { |
| try { |
| super.start(service, args); |
| deploy(args); |
| } catch( Exception e) { |
| currentState = ProcessState.FailedInitialization; |
| notifyAgentWithStatus(ProcessState.FailedInitialization); |
| throw e; |
| } |
| } |
| public void stop() { |
| if ( super.isStopping() ) { |
| return; // already stopping - nothing to do |
| } |
| try { |
| System.out.println("... AbstractManagedService - Stopping Service Adapter"); |
| serviceAdapter.stop(); |
| System.out.println("... AbstractManagedService - Calling super.stop() "); |
| super.stop(); |
| } catch( Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| static class ServiceShutdownHook extends Thread { |
| private AbstractManagedService managedService; |
| |
| public ServiceShutdownHook(AbstractManagedService service) { |
| this.managedService = service; |
| } |
| |
| public void run() { |
| try { |
| System.out |
| .println("Uima AS Service Wrapper Caught Kill Signal - Initiating Quiesce and Stop"); |
| managedService.quiesceAndStop(); |
| managedService.stopIt(); |
| |
| } catch (Exception e) { |
| } |
| } |
| } |
| |
| } |