/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.service;
import org.mule.api.MuleContext;
import org.mule.api.MuleException;
import org.mule.api.construct.FlowConstruct;
import org.mule.api.lifecycle.Disposable;
import org.mule.api.lifecycle.Initialisable;
import org.mule.api.lifecycle.LifecycleCallback;
import org.mule.api.lifecycle.Startable;
import org.mule.api.lifecycle.Stoppable;
import org.mule.api.service.Service;
import org.mule.context.notification.FlowConstructNotification;
import org.mule.context.notification.ServiceNotification;
import org.mule.lifecycle.SimpleLifecycleManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* The lifecycle manager responsible for managing lifecycle transitions for a Mule service. The Mule service adds some additional
* states, namely pause and resume. The lifecycle manager manages lifecycle notifications and logging as well.
*/
@Deprecated
public class ServiceLifecycleManager extends SimpleLifecycleManager<FlowConstruct>
{
/**
* logger used by this class
*/
protected transient final Log logger = LogFactory.getLog(ServiceLifecycleManager.class);
protected MuleContext muleContext;
public ServiceLifecycleManager(FlowConstruct service, MuleContext muleContext) throws MuleException
{
super(service.getName(), service);
this.muleContext = muleContext;
}
@Override
protected void registerTransitions()
{
super.registerTransitions();
//pause resume
addDirectTransition(Startable.PHASE_NAME, Pausable.PHASE_NAME);
//Note that 'Resume' state gets removed and the current state is set to 'start'. See {@link #notifyTransition}
addDirectTransition(Pausable.PHASE_NAME, Resumable.PHASE_NAME);
addDirectTransition(Pausable.PHASE_NAME, Stoppable.PHASE_NAME);
}
@Override
protected void notifyTransition(String destinationPhase)
{
if (destinationPhase.equals(Resumable.PHASE_NAME))
{
//Revert back to start phase
completedPhases.remove(Resumable.PHASE_NAME);
completedPhases.remove(Pausable.PHASE_NAME);
setCurrentPhase(Startable.PHASE_NAME);
}
}
@Override
public void fireInitialisePhase(LifecycleCallback<FlowConstruct> callback) throws MuleException
{
checkPhase(Initialisable.PHASE_NAME);
//TODO No pre notification
if(logger.isInfoEnabled()) logger.info("Initialising service: " + getLifecycleObject().getName());
invokePhase(Initialisable.PHASE_NAME, getLifecycleObject(), callback);
fireNotification(ServiceNotification.SERVICE_INITIALISED);
}
@Override
public void fireStartPhase(LifecycleCallback<FlowConstruct> callback) throws MuleException
{
checkPhase(Startable.PHASE_NAME);
if(logger.isInfoEnabled()) logger.info("Starting service: " + getLifecycleObject().getName());
//TODO No pre notification
invokePhase(Startable.PHASE_NAME, getLifecycleObject(), callback);
fireNotification(ServiceNotification.SERVICE_STARTED);
}
public void firePausePhase(LifecycleCallback<FlowConstruct> callback) throws MuleException
{
checkPhase(Pausable.PHASE_NAME);
if(logger.isInfoEnabled()) logger.info("Pausing service: " + getLifecycleObject().getName());
//TODO No pre notification
invokePhase(Pausable.PHASE_NAME, getLifecycleObject(), callback);
fireNotification(ServiceNotification.SERVICE_PAUSED);
}
public void fireResumePhase(LifecycleCallback<FlowConstruct> callback) throws MuleException
{
checkPhase(Resumable.PHASE_NAME);
if(logger.isInfoEnabled()) logger.info("Resuming service: " + getLifecycleObject().getName());
//TODO No pre notification
invokePhase(Resumable.PHASE_NAME, getLifecycleObject(), callback);
fireNotification(ServiceNotification.SERVICE_RESUMED);
}
@Override
public void fireStopPhase(LifecycleCallback<FlowConstruct> callback) throws MuleException
{
checkPhase(Stoppable.PHASE_NAME);
if(logger.isInfoEnabled()) logger.info("Stopping service: " + getLifecycleObject().getName());
//TODO No pre notification
invokePhase(Stoppable.PHASE_NAME, getLifecycleObject(), callback);
fireNotification(ServiceNotification.SERVICE_STOPPED);
}
@Override
public void fireDisposePhase(LifecycleCallback<FlowConstruct> callback) throws MuleException
{
checkPhase(Disposable.PHASE_NAME);
if(logger.isInfoEnabled()) logger.info("Disposing service: " + getLifecycleObject().getName());
//TODO No pre notification
invokePhase(Disposable.PHASE_NAME, getLifecycleObject(), callback);
fireNotification(ServiceNotification.SERVICE_DISPOSED);
}
protected void fireNotification(int action)
{
// double broadcast for backwards compatibility
muleContext.fireNotification(new FlowConstructNotification(getLifecycleObject(), action));
if(getLifecycleObject() instanceof Service)
{
muleContext.fireNotification(new ServiceNotification((Service)getLifecycleObject(), action));
}
}
}