分布式调度框架。
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/*
* 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.dolphinscheduler.service.quartz;
import org.apache.dolphinscheduler.common.Constants;
import org.apache.dolphinscheduler.common.enums.CommandType;
import org.apache.dolphinscheduler.common.enums.ReleaseState;
import org.apache.dolphinscheduler.dao.entity.Command;
import org.apache.dolphinscheduler.dao.entity.ProcessDefinition;
import org.apache.dolphinscheduler.dao.entity.Schedule;
import org.apache.dolphinscheduler.service.bean.SpringApplicationContext;
import org.apache.dolphinscheduler.service.process.ProcessService;
import java.util.Date;
import org.quartz.Job;
import org.quartz.JobDataMap;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
/**
* process schedule job
*/
public class ProcessScheduleJob implements Job {
/**
* logger of ProcessScheduleJob
*/
private static final Logger logger = LoggerFactory.getLogger(ProcessScheduleJob.class);
public ProcessService getProcessService() {
return SpringApplicationContext.getBean(ProcessService.class);
}
/**
* Called by the Scheduler when a Trigger fires that is associated with the Job
*
* @param context JobExecutionContext
* @throws JobExecutionException if there is an exception while executing the job.
*/
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
Assert.notNull(getProcessService(), "please call init() method first");
JobDataMap dataMap = context.getJobDetail().getJobDataMap();
int projectId = dataMap.getInt(Constants.PROJECT_ID);
int scheduleId = dataMap.getInt(Constants.SCHEDULE_ID);
Date scheduledFireTime = context.getScheduledFireTime();
Date fireTime = context.getFireTime();
logger.info("scheduled fire time :{}, fire time :{}, process id :{}", scheduledFireTime, fireTime, scheduleId);
// query schedule
Schedule schedule = getProcessService().querySchedule(scheduleId);
if (schedule == null || ReleaseState.OFFLINE == schedule.getReleaseState()) {
logger.warn("process schedule does not exist in db or process schedule offline,delete schedule job in quartz, projectId:{}, scheduleId:{}", projectId, scheduleId);
deleteJob(projectId, scheduleId);
return;
}
ProcessDefinition processDefinition = getProcessService().findProcessDefinitionByCode(schedule.getProcessDefinitionCode());
// release state : online/offline
ReleaseState releaseState = processDefinition.getReleaseState();
if (releaseState == ReleaseState.OFFLINE) {
logger.warn("process definition does not exist in db or offline,need not to create command, projectId:{}, processId:{}", projectId, processDefinition.getId());
return;
}
Command command = new Command();
command.setCommandType(CommandType.SCHEDULER);
command.setExecutorId(schedule.getUserId());
command.setFailureStrategy(schedule.getFailureStrategy());
command.setProcessDefinitionCode(schedule.getProcessDefinitionCode());
command.setScheduleTime(scheduledFireTime);
command.setStartTime(fireTime);
command.setWarningGroupId(schedule.getWarningGroupId());
String workerGroup = StringUtils.isEmpty(schedule.getWorkerGroup()) ? Constants.DEFAULT_WORKER_GROUP : schedule.getWorkerGroup();
command.setWorkerGroup(workerGroup);
command.setWarningType(schedule.getWarningType());
command.setProcessInstancePriority(schedule.getProcessInstancePriority());
getProcessService().createCommand(command);
}
/**
* delete job
*/
private void deleteJob(int projectId, int scheduleId) {
String jobName = QuartzExecutors.buildJobName(scheduleId);
String jobGroupName = QuartzExecutors.buildJobGroupName(projectId);
QuartzExecutors.getInstance().deleteJob(jobName, jobGroupName);
}
}