/**
* EasyBeans
* Copyright (C) 2007 Bull S.A.S.
* Contact: easybeans@ow2.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: EasyBeansTimerHandle.java 5369 2010-02-24 14:58:19Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.component.quartz;
import static org.ow2.easybeans.api.OperationState.AFTER_COMPLETION;
import static org.ow2.easybeans.api.OperationState.DEPENDENCY_INJECTION;
import static org.ow2.easybeans.api.OperationState.LIFECYCLE_CALLBACK_INTERCEPTOR;
import java.util.List;
import javax.ejb.EJBException;
import javax.ejb.NoSuchObjectLocalException;
import javax.ejb.Timer;
import javax.ejb.TimerHandle;
import org.ow2.easybeans.api.EZBContainer;
import org.ow2.easybeans.api.EZBServer;
import org.ow2.easybeans.api.EmbeddedManager;
import org.ow2.easybeans.api.Factory;
import org.ow2.easybeans.api.OperationState;
import org.ow2.easybeans.api.components.EZBComponentRegistry;
import org.ow2.easybeans.component.itf.TimerComponent;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.Trigger;
/**
* Implementation of the Timer handle interface.
* @author Florent Benoit
*/
public class EasyBeansTimerHandle implements TimerHandle {
/**
* Serial version UID for serializable classes.
*/
private static final long serialVersionUID = 5391559452078385341L;
/**
* JobDetail used to get parameters.
*/
private EasyBeansJobDetail easyBeansJobDetail;
/**
* Constructor. Build an handle for this timer.
* @param easyBeansJobDetail the job detail.
*/
public EasyBeansTimerHandle(final EasyBeansJobDetail easyBeansJobDetail) {
this.easyBeansJobDetail = easyBeansJobDetail;
}
/**
* Obtain a reference to the timer represented by this handle.
* @return a reference to the timer represented by this handle.
* @throws IllegalStateException If this method is invoked while the
* instance is in a state that does not allow access to this method.
* @throws NoSuchObjectLocalException If invoked on a handle whose
* associated timer has expired or has been cancelled.
* @throws EJBException If this method could not complete due to a
* system-level failure.
*/
public Timer getTimer() throws IllegalStateException, NoSuchObjectLocalException, EJBException {
Timer timer = null;
// Get data from the Job Detail
String jobName = this.easyBeansJobDetail.getName();
String groupName = this.easyBeansJobDetail.getGroup();
// Get data from the jobDetail
EasyBeansJobDetailData easyBeansJobDetailData = this.easyBeansJobDetail.getJobDetailData();
Integer easyBeansServerID = easyBeansJobDetailData.getEasyBeansServerID();
String containerID = easyBeansJobDetailData.getContainerId();
String factoryName = easyBeansJobDetailData.getFactoryName();
// Get the EasyBeans embedded instance
EZBServer embedded = EmbeddedManager.getEmbedded(easyBeansServerID);
// Get the container object
EZBContainer container = embedded.getContainer(containerID);
// get the factory
Factory<?, ?> factory = container.getFactory(factoryName);
// Ensure operation state is valid
OperationState operationState = factory.getOperationState();
if (DEPENDENCY_INJECTION == operationState || LIFECYCLE_CALLBACK_INTERCEPTOR == operationState
|| AFTER_COMPLETION == operationState) {
throw new IllegalStateException("The getTimer() method cannot be called within the operation state '"
+ operationState + "'.");
}
// Get the components registry
EZBComponentRegistry registry = embedded.getComponentManager().getComponentRegistry();
// Get the timer components
List<TimerComponent> timerComponents = registry.getComponents(TimerComponent.class);
// Find the quartz component in this list
if (timerComponents == null || timerComponents.size() == 0) {
throw new EJBException("Cannot get the timer object as no timer component have been found on the EasyBeans server");
}
// Check the first one
TimerComponent timerComponent = timerComponents.get(0);
QuartzComponent quartzComponent = null;
if (timerComponent instanceof QuartzComponent) {
quartzComponent = (QuartzComponent) timerComponent;
} else {
throw new EJBException("The timer component found is not a Quartz Timer Component ('" + timerComponent + "').");
}
// Get Scheduler on the quartz component
Scheduler scheduler = quartzComponent.getScheduler();
// Get detail
JobDetail jobDetail = null;
try {
jobDetail = scheduler.getJobDetail(jobName, groupName);
} catch (SchedulerException e) {
throw new EJBException("Cannot get the jobDetail for the jobName '" + jobName + "'.", e);
}
// Cast to correct object
EasyBeansJobDetail easyBeansJobDetail = null;
if (jobDetail instanceof EasyBeansJobDetail) {
easyBeansJobDetail = (EasyBeansJobDetail) jobDetail;
} else {
throw new EJBException("JobDetail found for the job named '" + jobName + "' is not an EasyBeansJobDetail object");
}
// Get triggers
Trigger[] triggers = null;
try {
triggers = scheduler.getTriggersOfJob(jobName, groupName);
} catch (SchedulerException e) {
throw new EJBException("Cannot get triggers for the job named '" + jobName + "'.", e);
}
// Should be only once trigger per job
if (triggers == null || triggers.length > 1) {
throw new EJBException("Invalid numbers of triggers found for the job named '" + jobName + "'.");
}
// Build a timer object and return it
timer = new EasyBeansTimer(easyBeansJobDetail, triggers[0], scheduler, factory);
// Return the timer instance
return timer;
}
}