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CronTriggerExample.java
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package com.generalsentiment.test.quartz;
import java.io.File;
import java.util.Date;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import static org.quartz.CronScheduleBuilder.cronSchedule;
import static org.quartz.JobBuilder.newJob;
import org.quartz.*;
import static org.quartz.TriggerBuilder.newTrigger;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.matchers.GroupMatcher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class CronTriggerExample implements ServletContextListener {
@Override
public void contextInitialized(ServletContextEvent sce) {
System.out.println("THE APPLICATION STARTED");
try {
Logger log = LoggerFactory.getLogger(CronTriggerExample.class);
String path = ".";
Properties prop = new Properties();
prop.setProperty("org.quartz.scheduler.instanceName", "ALARM_SCHEDULER");
prop.setProperty("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool");
prop.setProperty("org.quartz.threadPool.threadCount", "4");
prop.setProperty("org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread", "true");
prop.setProperty("org.quartz.jobStore.class", "org.quartz.impl.jdbcjobstore.JobStoreCMT");
prop.setProperty("org.quartz.jobStore.driverDelegateClass", "org.quartz.impl.jdbcjobstore.StdJDBCDelegate");
prop.setProperty("org.quartz.jobStore.dataSource", "tasksDataStore");
prop.setProperty("org.quartz.jobStore.nonManagedTXDataSource", "tasksDataStore");
prop.setProperty("org.quartz.jobStore.tablePrefix", "QRTZ_");
prop.setProperty("org.quartz.jobStore.misfireThreshold", "60000");
prop.setProperty("org.quartz.jobStore.isClustered", "false");
prop.setProperty("org.quartz.dataSource.tasksDataStore.driver", "com.mysql.jdbc.Driver");
prop.setProperty("org.quartz.dataSource.tasksDataStore.URL", "jdbc:mysql://localhost:3306/gsraisin?useUnicode=true&characterEncoding=UTF-8");
prop.setProperty("org.quartz.dataSource.tasksDataStore.user", "root");
prop.setProperty("org.quartz.dataSource.tasksDataStore.password", "rootAdmin");
prop.setProperty("org.quartz.dataSource.tasksDataStore.maxConnections", "20");
// First we must get a reference to a scheduler
SchedulerFactory sf = new StdSchedulerFactory(prop);
Scheduler sched = sf.getScheduler();
// List<String> triggerGroups = sched.getTriggerGroupNames();
// for(String current:triggerGroups) {
// Set<TriggerKey> triggers = sched.getTriggerKeys(GroupMatcher.triggerGroupEquals(current));
// for(TriggerKey key:triggers){
// Trigger quartzTrigger = sched.getTrigger(key);
// System.out.println("Trigger Name : " +key.getName());
// System.out.println("Trigger Group : " +current);
// sched.rescheduleJob(key, quartzTrigger);
// }
// }
// JobDetail jobDetail = sched.getJobDetail();
// System.out.println(jobDetail.getDescription()+ "&&&"
// +jobDetail.isPersistJobDataAfterExecution()+
// "&&"+jobDetail.getKey().getName());
System.out.println("------- Initialization Complete --------");
System.out.println("------- Scheduling Jobs ----------------");
// jobs can be scheduled before sched.start() has been called
// job 1 will run exactly at 12:55 daily
JobDetail job1 = newJob(SimpleJob.class).withIdentity("job1", "group1").build();
CronTrigger trigger1 = newTrigger().withIdentity("trigger1", "group1").withSchedule(cronSchedule("00 55 16 * * ?")).build();
Date ft1 = sched.scheduleJob(job1, trigger1);
System.out.println(sched.getSchedulerName());
System.out.println(job1.getKey() + " has been scheduled to run at: " + ft1
+ " and repeat based on expression: "
+ trigger1.getCronExpression());
JobDetail job2 = newJob(SimpleJob.class).withIdentity("job2", "group1").build();
CronTrigger trigger2 = newTrigger().withIdentity("trigger2", "group1").withSchedule(cronSchedule("00 00 17 * * ?")).build();
Date ft2 = sched.scheduleJob(job2, trigger2);
System.out.println(sched.getSchedulerName());
System.out.println(job2.getKey() + " has been scheduled to run at: " + ft2
+ " and repeat based on expression: "
+ trigger2.getCronExpression());
System.out.println("------- Starting Scheduler ----------------");
/*
* All of the jobs have been added to the scheduler, but none of the
* jobs will run until the scheduler has been started. If you have
* multiple jobs performing multiple tasks, then its recommended to
* write it in separate classes, like SimpleJob.class writes
* organization members to file.
*/
sched.start();
System.out.println("------- Started Scheduler -----------------");
System.out.println("------- Waiting five minutes... ------------");
try {
// wait five minutes to show jobs
Thread.sleep(300L * 1000L);
// executing...
} catch (Exception e) {
}
System.out.println("------- Shutting Down ---------------------");
// sched.shutdown(true);
//
// System.out.println("------- Shutdown Complete -----------------");
SchedulerMetaData metaData = sched.getMetaData();
System.out.println("Executed " + metaData.getNumberOfJobsExecuted() + " jobs.");
} catch (SchedulerException se) {
System.out.println(se);
} catch (Exception e) {
System.out.println(e);
}
}
@Override
public void contextDestroyed(ServletContextEvent sce) {
System.out.println("THE APPLICATION STOPPED");
}
}