| /* |
| * 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.superbiz.schedule.events; |
| |
| import javax.annotation.Resource; |
| import javax.ejb.Lock; |
| import javax.ejb.LockType; |
| import javax.ejb.ScheduleExpression; |
| import javax.ejb.Singleton; |
| import javax.ejb.Timeout; |
| import javax.ejb.Timer; |
| import javax.ejb.TimerConfig; |
| import javax.ejb.TimerService; |
| import javax.enterprise.inject.spi.BeanManager; |
| import java.io.Serializable; |
| import java.lang.annotation.Annotation; |
| |
| /** |
| * @version $Revision$ $Date$ |
| */ |
| @Singleton |
| @Lock(LockType.READ) |
| public class Scheduler { |
| |
| @Resource |
| private TimerService timerService; |
| |
| @Resource |
| private BeanManager beanManager; |
| |
| public void scheduleEvent(ScheduleExpression schedule, Object event, Annotation... qualifiers) { |
| |
| timerService.createCalendarTimer(schedule, new TimerConfig(new EventConfig(event, qualifiers), false)); |
| } |
| |
| @Timeout |
| private void timeout(Timer timer) { |
| final EventConfig config = (EventConfig) timer.getInfo(); |
| |
| beanManager.fireEvent(config.getEvent(), config.getQualifiers()); |
| } |
| |
| // Doesn't actually need to be serializable, just has to implement it |
| private final class EventConfig implements Serializable { |
| |
| private final Object event; |
| private final Annotation[] qualifiers; |
| |
| private EventConfig(Object event, Annotation[] qualifiers) { |
| this.event = event; |
| this.qualifiers = qualifiers; |
| } |
| |
| public Object getEvent() { |
| return event; |
| } |
| |
| public Annotation[] getQualifiers() { |
| return qualifiers; |
| } |
| } |
| } |