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elastic-job-core/src/main/java/com/dangdang/ddframe/job/api/JobScheduler.java
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| /** | ||
| * Copyright 1999-2015 dangdang.com. | ||
| * <p> | ||
| * 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. | ||
| * </p> | ||
| */ | ||
|
|
||
| package com.dangdang.ddframe.job.api; | ||
|
|
||
| import java.util.Date; | ||
| import java.util.List; | ||
| import java.util.Properties; | ||
|
|
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| import lombok.extern.slf4j.Slf4j; | ||
|
|
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| import org.quartz.CronScheduleBuilder; | ||
| import org.quartz.CronTrigger; | ||
| import org.quartz.JobBuilder; | ||
| import org.quartz.JobDetail; | ||
| import org.quartz.JobExecutionContext; | ||
| import org.quartz.Scheduler; | ||
| import org.quartz.SchedulerException; | ||
| import org.quartz.Trigger; | ||
| import org.quartz.TriggerBuilder; | ||
| import org.quartz.TriggerKey; | ||
| import org.quartz.impl.StdSchedulerFactory; | ||
|
|
||
| import com.dangdang.ddframe.job.exception.JobException; | ||
| import com.dangdang.ddframe.job.internal.config.ConfigurationService; | ||
| import com.dangdang.ddframe.job.internal.election.LeaderElectionService; | ||
| import com.dangdang.ddframe.job.internal.execution.ExecutionContextService; | ||
| import com.dangdang.ddframe.job.internal.execution.ExecutionService; | ||
| import com.dangdang.ddframe.job.internal.failover.FailoverService; | ||
| import com.dangdang.ddframe.job.internal.job.AbstractElasticJob; | ||
| import com.dangdang.ddframe.job.internal.listener.ListenerManager; | ||
| import com.dangdang.ddframe.job.internal.offset.OffsetService; | ||
| import com.dangdang.ddframe.job.internal.schedule.JobRegistry; | ||
| import com.dangdang.ddframe.job.internal.schedule.JobTriggerListener; | ||
| import com.dangdang.ddframe.job.internal.server.ServerService; | ||
| import com.dangdang.ddframe.job.internal.sharding.ShardingService; | ||
| import com.dangdang.ddframe.job.internal.statistics.StatisticsService; | ||
| import com.dangdang.ddframe.reg.base.CoordinatorRegistryCenter; | ||
| import com.google.common.base.Joiner; | ||
|
|
||
| /** | ||
| * 作业调度器. | ||
| * | ||
| * @author zhangliang, caohao | ||
| */ | ||
| @Slf4j | ||
| public class JobScheduler { | ||
|
|
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| private static final String SCHEDULER_INSTANCE_NAME_SUFFIX = "Scheduler"; | ||
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| private static final String CRON_TRIGGER_INDENTITY_SUFFIX = "Trigger"; | ||
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| private final JobConfiguration jobConfiguration; | ||
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| private final ListenerManager listenerManager; | ||
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| private final ConfigurationService configService; | ||
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| private final LeaderElectionService leaderElectionService; | ||
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| private final ServerService serverService; | ||
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| private final ShardingService shardingService; | ||
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| private final ExecutionContextService executionContextService; | ||
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| private final ExecutionService executionService; | ||
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| private final FailoverService failoverService; | ||
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| private final StatisticsService statisticsService; | ||
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| private final OffsetService offsetService; | ||
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| private Scheduler scheduler; | ||
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| private JobDetail jobDetail; | ||
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| public JobScheduler(final CoordinatorRegistryCenter coordinatorRegistryCenter, final JobConfiguration jobConfiguration) { | ||
| this.jobConfiguration = jobConfiguration; | ||
| listenerManager = new ListenerManager(coordinatorRegistryCenter, jobConfiguration); | ||
| configService = new ConfigurationService(coordinatorRegistryCenter, jobConfiguration); | ||
| leaderElectionService = new LeaderElectionService(coordinatorRegistryCenter, jobConfiguration); | ||
| serverService = new ServerService(coordinatorRegistryCenter, jobConfiguration); | ||
| shardingService = new ShardingService(coordinatorRegistryCenter, jobConfiguration); | ||
| executionContextService = new ExecutionContextService(coordinatorRegistryCenter, jobConfiguration); | ||
| executionService = new ExecutionService(coordinatorRegistryCenter, jobConfiguration); | ||
| failoverService = new FailoverService(coordinatorRegistryCenter, jobConfiguration); | ||
| statisticsService = new StatisticsService(coordinatorRegistryCenter, jobConfiguration); | ||
| offsetService = new OffsetService(coordinatorRegistryCenter, jobConfiguration); | ||
| } | ||
|
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||
| /** | ||
| * 初始化作业. | ||
| */ | ||
| public void init() { | ||
| log.debug("Elastic job: job controller init, job name is: {}.", jobConfiguration.getJobName()); | ||
| registerElasticEnv(); | ||
| jobDetail = createJobDetail(); | ||
| try { | ||
| scheduler = initializeScheduler(jobDetail.getKey().toString()); | ||
| scheduleJob(createTrigger(configService.getCron())); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| JobRegistry.getInstance().addJob(jobConfiguration.getJobName(), this); | ||
| } | ||
|
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| private void registerElasticEnv() { | ||
| listenerManager.startAllListeners(); | ||
| leaderElectionService.leaderElection(); | ||
| configService.persistJobConfiguration(); | ||
| serverService.persistServerOnline(); | ||
| serverService.clearJobStopedStatus(); | ||
| statisticsService.startProcessCountJob(); | ||
| shardingService.setReshardingFlag(); | ||
| } | ||
|
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| private JobDetail createJobDetail() { | ||
| JobDetail result = JobBuilder.newJob(jobConfiguration.getJobClass()).withIdentity(jobConfiguration.getJobName()).build(); | ||
| result.getJobDataMap().put("configService", configService); | ||
| result.getJobDataMap().put("shardingService", shardingService); | ||
| result.getJobDataMap().put("executionContextService", executionContextService); | ||
| result.getJobDataMap().put("executionService", executionService); | ||
| result.getJobDataMap().put("failoverService", failoverService); | ||
| result.getJobDataMap().put("offsetService", offsetService); | ||
| return result; | ||
| } | ||
|
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||
| private CronTrigger createTrigger(final String cronExpression) { | ||
| CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(cronExpression); | ||
| if (configService.isMisfire()) { | ||
| cronScheduleBuilder = cronScheduleBuilder.withMisfireHandlingInstructionFireAndProceed(); | ||
| } else { | ||
| cronScheduleBuilder = cronScheduleBuilder.withMisfireHandlingInstructionDoNothing(); | ||
| } | ||
| return TriggerBuilder.newTrigger() | ||
| .withIdentity(Joiner.on("_").join(jobConfiguration.getJobName(), CRON_TRIGGER_INDENTITY_SUFFIX)) | ||
| .withSchedule(cronScheduleBuilder).build(); | ||
| } | ||
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| private Scheduler initializeScheduler(final String jobName) throws SchedulerException { | ||
| StdSchedulerFactory factory = new StdSchedulerFactory(); | ||
| factory.initialize(getBaseQuartzProperties(jobName)); | ||
| Scheduler result = factory.getScheduler(); | ||
| result.getListenerManager().addTriggerListener(new JobTriggerListener(executionService, shardingService)); | ||
| return result; | ||
| } | ||
|
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| private Properties getBaseQuartzProperties(final String jobName) { | ||
| Properties result = new Properties(); | ||
| result.put("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool"); | ||
| result.put("org.quartz.threadPool.threadCount", "1"); | ||
| result.put("org.quartz.scheduler.instanceName", Joiner.on("_").join(jobName, SCHEDULER_INSTANCE_NAME_SUFFIX)); | ||
| if (!configService.isMisfire()) { | ||
| result.put("org.quartz.jobStore.misfireThreshold", "1"); | ||
| } | ||
| prepareEnvironments(result); | ||
| return result; | ||
| } | ||
|
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| protected void prepareEnvironments(final Properties props) { | ||
| } | ||
|
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| private void scheduleJob(final CronTrigger trigger) throws SchedulerException { | ||
| if (!scheduler.checkExists(jobDetail.getKey())) { | ||
| scheduler.scheduleJob(jobDetail, trigger); | ||
| } | ||
| scheduler.start(); | ||
| } | ||
|
|
||
| /** | ||
| * 获取下次作业触发时间. | ||
| * | ||
| * @return 下次作业触发时间 | ||
| */ | ||
| public Date getNextFireTime() { | ||
| Date result = null; | ||
| List<? extends Trigger> triggers; | ||
| try { | ||
| triggers = scheduler.getTriggersOfJob(jobDetail.getKey()); | ||
| } catch (final SchedulerException ex) { | ||
| return result; | ||
| } | ||
| for (Trigger each : triggers) { | ||
| Date nextFireTime = each.getNextFireTime(); | ||
| if (null == nextFireTime) { | ||
| continue; | ||
| } | ||
| if (null == result) { | ||
| result = nextFireTime; | ||
| } else if (nextFireTime.getTime() < result.getTime()) { | ||
| result = nextFireTime; | ||
| } | ||
| } | ||
| return result; | ||
| } | ||
|
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| /** | ||
| * 停止作业. | ||
| */ | ||
| public void stopJob() { | ||
| try { | ||
| for (JobExecutionContext each : scheduler.getCurrentlyExecutingJobs()) { | ||
| if (each.getJobInstance() instanceof AbstractElasticJob) { | ||
| ((AbstractElasticJob) each.getJobInstance()).stop(); | ||
| } | ||
| } | ||
| scheduler.pauseAll(); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| } | ||
|
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| /** | ||
| * 恢复手工停止的作业. | ||
| */ | ||
| public void resumeManualStopedJob() { | ||
| try { | ||
| scheduler.resumeAll(); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| serverService.clearJobStopedStatus(); | ||
| } | ||
|
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| /** | ||
| * 恢复因服务器崩溃而停止的作业. | ||
| * | ||
| * <p> | ||
| * 不会恢复手工设置停止运行的作业. | ||
| * </p> | ||
| */ | ||
| public void resumeCrashedJob() { | ||
| serverService.persistServerOnline(); | ||
| executionService.clearRunningInfo(shardingService.getLocalHostShardingItems()); | ||
| if (serverService.isJobStopedManually()) { | ||
| return; | ||
| } | ||
| try { | ||
| scheduler.resumeAll(); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * 立刻启动作业. | ||
| */ | ||
| public void triggerJob() { | ||
| try { | ||
| scheduler.triggerJob(jobDetail.getKey()); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * 关闭调度器. | ||
| */ | ||
| public void shutdown() { | ||
| try { | ||
| scheduler.shutdown(); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * 重新调度作业. | ||
| */ | ||
| public void rescheduleJob(final String cronExpression) { | ||
| try { | ||
| scheduler.rescheduleJob(TriggerKey.triggerKey(Joiner.on("_").join(jobConfiguration.getJobName(), CRON_TRIGGER_INDENTITY_SUFFIX)), createTrigger(cronExpression)); | ||
| } catch (final SchedulerException ex) { | ||
| throw new JobException(ex); | ||
| } | ||
| } | ||
| } |
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