org.jboss.as.ejb3.timerservice.TimerHandleImpl Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.timerservice;
import java.security.AccessController;
import javax.ejb.EJBException;
import javax.ejb.Timer;
import javax.ejb.TimerHandle;
import org.jboss.as.ejb3.logging.EjbLogger;
import org.jboss.as.server.CurrentServiceContainer;
import org.jboss.msc.service.ServiceContainer;
import org.jboss.msc.service.ServiceName;
/**
* @author Carlo de Wolf
* @version $Revision: $
*/
public class TimerHandleImpl implements TimerHandle {
private static final long serialVersionUID = 1L;
/**
* Id of the target {@link org.jboss.as.ejb3.timerservice.spi.TimedObjectInvoker}
*/
private final String timedObjectId;
/**
* The service name of the timer service
*/
private final String serviceName;
/**
* Each {@link org.jboss.as.ejb3.timerservice.spi.TimedObjectInvoker} can have multiple timer instances.
* This id corresponds to one such instance
*/
private final String id;
/**
* The {@link TimerServiceImpl} to which this timer handle belongs to
*/
private transient TimerServiceImpl service;
/**
* Creates a {@link TimerHandleImpl}
*
* @param id The id of the timer instance
* @param timedObjectId The id of the target {@link org.jboss.as.ejb3.timerservice.spi.TimedObjectInvoker}
* @param service The timer service to which this timer handle belongs to
* @throws IllegalArgumentException If either of the passed parameters is null
*/
public TimerHandleImpl(final String id, final String timedObjectId, final TimerServiceImpl service) throws IllegalArgumentException {
if (id == null) {
throw EjbLogger.EJB3_TIMER_LOGGER.idIsNull();
}
if (timedObjectId == null) {
throw EjbLogger.EJB3_TIMER_LOGGER.timedObjectNull();
}
if (service == null) {
throw EjbLogger.EJB3_TIMER_LOGGER.timerServiceIsNull();
}
this.timedObjectId = timedObjectId;
this.id = id;
this.service = service;
this.serviceName = service.getServiceName().getCanonicalName();
}
/**
* Returns the {@link javax.ejb.Timer} corresponding to this timer handle
*
* {@inheritDoc}
*/
public Timer getTimer() throws IllegalStateException, EJBException {
if (service == null) {
// get hold of the timer service through the use of timed object id
service = (TimerServiceImpl) currentServiceContainer().getRequiredService(ServiceName.parse(serviceName)).getValue();
if (service == null) {
throw EjbLogger.EJB3_TIMER_LOGGER.timerServiceWithIdNotRegistered(timedObjectId);
}
}
final TimerImpl timer = this.service.getTimer(this);
if (timer == null || !timer.isActive()) {
throw EjbLogger.EJB3_TIMER_LOGGER.timerHandleIsNotActive(this);
}
return timer;
}
public String getId() {
return this.id;
}
public String getTimedObjectId() {
return this.timedObjectId;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (obj instanceof TimerHandleImpl == false) {
return false;
}
TimerHandleImpl other = (TimerHandleImpl) obj;
if (this == other) {
return true;
}
if (this.id.equals(other.id) && this.timedObjectId.equals(other.timedObjectId)) {
return true;
}
return false;
}
@Override
public int hashCode() {
return this.id.hashCode();
}
private static ServiceContainer currentServiceContainer() {
if(System.getSecurityManager() == null) {
return CurrentServiceContainer.getServiceContainer();
}
return AccessController.doPrivileged(CurrentServiceContainer.GET_ACTION);
}
}