Java tutorial
/* * Copyright 2002-2009 the original author or authors. * * Licensed 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 com.saysth.commons.quartz; import java.util.Date; import java.util.Map; import java.util.TimeZone; import org.quartz.CronTrigger; import org.quartz.JobDetail; import org.quartz.Scheduler; import org.quartz.impl.triggers.CronTriggerImpl; import org.springframework.beans.factory.BeanNameAware; import org.springframework.beans.factory.InitializingBean; import org.springframework.core.Constants; import org.springframework.util.Assert; /** * Convenience subclass of Quartz's {@link org.quartz.CronTrigger} class, making * bean-style usage easier. * * <p> * CronTrigger itself is already a JavaBean but lacks sensible defaults. This * class uses the Spring bean name as job name, the Quartz default group * ("DEFAULT") as job group, the current time as start time, and indefinite * repetition, if not specified. * * <p> * This class will also register the trigger with the job name and group of a * given {@link org.quartz.JobDetail}. This allows {@link SchedulerFactoryBean} * to automatically register a trigger for the corresponding JobDetail, instead * of registering the JobDetail separately. * * <p> * <b>NOTE:</b> This convenience subclass does not work with trigger persistence * in Quartz 1.6, due to a change in Quartz's trigger handling. Use Quartz 1.5 * if you rely on trigger persistence based on this class, or the standard * Quartz {@link org.quartz.CronTrigger} class instead. * * @author Juergen Hoeller * @since 18.02.2004 * @see #setName * @see #setGroup * @see #setStartTime * @see #setJobName * @see #setJobGroup * @see #setJobDetail * @see SchedulerFactoryBean#setTriggers * @see SchedulerFactoryBean#setJobDetails * @see SimpleTriggerBean */ public class CronTriggerBean extends CronTriggerImpl implements JobDetailAwareTrigger, BeanNameAware, InitializingBean { /** * */ private static final long serialVersionUID = 1L; /** Constants for the CronTrigger class */ private static final Constants constants = new Constants(CronTrigger.class); private JobDetail jobDetail; private String beanName; private long startDelay; /** * Register objects in the JobDataMap via a given Map. * <p> * These objects will be available to this Trigger only, in contrast to * objects in the JobDetail's data map. * * @param jobDataAsMap * Map with String keys and any objects as values (for example * Spring-managed beans) * @see JobDetailBean#setJobDataAsMap */ public void setJobDataAsMap(Map<? extends String, ? extends Object> jobDataAsMap) { getJobDataMap().putAll(jobDataAsMap); } /** * Set the misfire instruction via the name of the corresponding constant in * the {@link org.quartz.CronTrigger} class. Default is * <code>MISFIRE_INSTRUCTION_SMART_POLICY</code>. * * @see org.quartz.CronTrigger#MISFIRE_INSTRUCTION_FIRE_ONCE_NOW * @see org.quartz.CronTrigger#MISFIRE_INSTRUCTION_DO_NOTHING * @see org.quartz.Trigger#MISFIRE_INSTRUCTION_SMART_POLICY */ public void setMisfireInstructionName(String constantName) { setMisfireInstruction(constants.asNumber(constantName).intValue()); } /** * Set a list of TriggerListener names for this job, referring to non-global * TriggerListeners registered with the Scheduler. * <p> * A TriggerListener name always refers to the name returned by the * TriggerListener implementation. * * @see SchedulerFactoryBean#setTriggerListeners * @see org.quartz.TriggerListener#getName */ public void setTriggerListenerNames(String[] names) { for (int i = 0; i < names.length; i++) { // TODO addTriggerListener // addTriggerListener(names[i]); } } /** * Set the JobDetail that this trigger should be associated with. * <p> * This is typically used with a bean reference if the JobDetail is a * Spring-managed bean. Alternatively, the trigger can also be associated * with a job by name and group. * * @see #setJobName * @see #setJobGroup */ public void setJobDetail(JobDetail jobDetail) { this.jobDetail = jobDetail; } /** * Set the start delay in milliseconds. * <p> * The start delay is added to the current system time (when the bean * starts) to control the {@link #setStartTime start time} of the trigger. * <p> * If the start delay is non-zero it will <strong>always</strong> take * precedence over start time. * * @param startDelay * the start delay, in milliseconds. */ public void setStartDelay(long startDelay) { Assert.state(startDelay >= 0, "Start delay cannot be negative."); this.startDelay = startDelay; } public JobDetail getJobDetail() { return this.jobDetail; } public void setBeanName(String beanName) { this.beanName = beanName; } public void afterPropertiesSet() throws Exception { if (this.startDelay > 0) { setStartTime(new Date(System.currentTimeMillis() + this.startDelay)); } if (getName() == null) { setName(this.beanName); } if (getGroup() == null) { setGroup(Scheduler.DEFAULT_GROUP); } if (getStartTime() == null) { setStartTime(new Date()); } if (getTimeZone() == null) { setTimeZone(TimeZone.getDefault()); } if (this.jobDetail != null) { setJobName(this.jobDetail.getKey().getName()); setJobGroup(this.jobDetail.getKey().getGroup()); } } }