/*
* 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.core.timer;
import org.apache.openejb.BeanContext;
import org.apache.openejb.BeanType;
import org.apache.openejb.MethodContext;
import org.apache.openejb.ModuleContext;
import org.apache.openejb.core.ThreadContext;
import org.apache.openejb.util.LogCategory;
import org.apache.openejb.util.Logger;
import javax.ejb.EJBException;
import javax.ejb.ScheduleExpression;
import javax.ejb.Timer;
import javax.ejb.TimerConfig;
import javax.ejb.TimerService;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
public class TimerServiceWrapper implements TimerService {
private static final Logger log = Logger.getInstance(LogCategory.TIMER, TimerServiceWrapper.class);
public Timer createTimer(final Date initialExpiration, final long intervalDuration, final Serializable info) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createTimer(initialExpiration, intervalDuration, info);
}
public Timer createTimer(final Date expiration, final Serializable info) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createTimer(expiration, info);
}
public Timer createTimer(final long initialDuration, final long intervalDuration, final Serializable info) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createTimer(initialDuration, intervalDuration, info);
}
public Timer createTimer(final long duration, final Serializable info) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createTimer(duration, info);
}
public Collection<Timer> getTimers() throws IllegalStateException, EJBException {
return getTimerService().getTimers();
}
@Override
public Collection<Timer> getAllTimers() throws IllegalStateException, EJBException {
final ThreadContext threadContext = ThreadContext.getThreadContext();
final BeanContext beanContext = threadContext.getBeanContext();
final ModuleContext module = beanContext.getModuleContext();
final Collection<Timer> timers = new HashSet<>();
for (final BeanContext c : module.getAppContext().getBeanContexts()) {
if (c.getModuleContext() == module) { // filter by module
if (c.getComponentType() != BeanType.STATEFUL) {
final TimerService timerService = getTimerService(null, c, true);
if (timerService == null) {
continue;
}
final Collection<Timer> beanTimers = timerService.getTimers();
timers.addAll(beanTimers);
} else {
// for all instances
final TimerService timerService = getTimerService(null, c, true);
if (timerService == null) {
continue;
}
final Collection<Timer> beanTimers = timerService.getTimers();
timers.addAll(beanTimers);
}
}
}
return timers;
}
public Timer createSingleActionTimer(final long l, final TimerConfig timerConfig) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createSingleActionTimer(l, timerConfig);
}
public Timer createSingleActionTimer(final Date date, final TimerConfig timerConfig) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createSingleActionTimer(date, timerConfig);
}
public Timer createIntervalTimer(final long l, final long l1, final TimerConfig timerConfig) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createIntervalTimer(l, l1, timerConfig);
}
public Timer createIntervalTimer(final Date date, final long l, final TimerConfig timerConfig) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createIntervalTimer(date, l, timerConfig);
}
public Timer createCalendarTimer(final ScheduleExpression scheduleExpression) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createCalendarTimer(scheduleExpression);
}
public Timer createCalendarTimer(final ScheduleExpression scheduleExpression, final TimerConfig timerConfig) throws IllegalArgumentException, IllegalStateException, EJBException {
return getTimerService().createCalendarTimer(scheduleExpression, timerConfig);
}
private TimerService getTimerService() throws IllegalStateException {
final ThreadContext threadContext = ThreadContext.getThreadContext();
final BeanContext beanContext = threadContext.getBeanContext();
return getTimerService(threadContext.getPrimaryKey(), beanContext, false);
}
private TimerService getTimerService(final Object pk, final BeanContext beanContext, final boolean nullIfNotRelevant) throws IllegalStateException {
final EjbTimerService timerService = beanContext.getEjbTimerService();
if (timerService == null) {
throw new IllegalStateException("This ejb does not support timers " + beanContext.getDeploymentID());
} else if (beanContext.getEjbTimeout() == null) {
HasSchedule hasSchedule = beanContext.get(HasSchedule.class);
boolean hasSchedules = false;
if (hasSchedule != null) {
hasSchedules = hasSchedule.value;
} else {
for (final Iterator<Map.Entry<Method, MethodContext>> it = beanContext.iteratorMethodContext(); it.hasNext(); ) {
final Map.Entry<Method, MethodContext> entry = it.next();
final MethodContext methodContext = entry.getValue();
if (methodContext.getSchedules().size() > 0) {
hasSchedules = true;
}
}
synchronized (beanContext) { // surely not the best lock instance but works in this context
if (beanContext.get(HasSchedule.class) == null) {
beanContext.set(HasSchedule.class, new HasSchedule(hasSchedules));
}
}
}
if (!hasSchedules) {
if (nullIfNotRelevant) {
return null;
}
log.error("This ejb does not support timers " + beanContext.getDeploymentID() + " due to no timeout method nor schedules in methodContext is configured");
}
}
return new TimerServiceImpl(timerService, pk, beanContext.getEjbTimeout());
}
private static final class HasSchedule {
private final boolean value;
private HasSchedule(final boolean value) {
this.value = value;
}
}
}