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GobblinHelixJob.java
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GobblinHelixJob.java
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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.gobblin.cluster;
import java.util.Properties;
import java.util.concurrent.Future;
import org.quartz.InterruptableJob;
import org.quartz.Job;
import org.quartz.JobDataMap;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.UnableToInterruptJobException;
import lombok.extern.slf4j.Slf4j;
import org.apache.gobblin.annotation.Alpha;
import org.apache.gobblin.runtime.listeners.JobListener;
import org.apache.gobblin.scheduler.BaseGobblinJob;
import org.apache.gobblin.scheduler.JobScheduler;
/**
* An implementation of a Quartz's {@link Job} that uses a {@link GobblinHelixJobLauncher}
* to launch a Gobblin job.
*
* @author Yinan Li
*/
@Alpha
@Slf4j
public class GobblinHelixJob extends BaseGobblinJob implements InterruptableJob {
private Future<?> cancellable = null;
@Override
public void executeImpl(JobExecutionContext context) throws JobExecutionException {
JobDataMap dataMap = context.getJobDetail().getJobDataMap();
final JobScheduler jobScheduler = (JobScheduler) dataMap.get(JobScheduler.JOB_SCHEDULER_KEY);
// the properties may get mutated during job execution and the scheduler reuses it for the next round of scheduling,
// so clone it
final Properties jobProps = (Properties)((Properties) dataMap.get(JobScheduler.PROPERTIES_KEY)).clone();
final JobListener jobListener = (JobListener) dataMap.get(JobScheduler.JOB_LISTENER_KEY);
try {
if (Boolean.parseBoolean(jobProps.getProperty(GobblinClusterConfigurationKeys.JOB_EXECUTE_IN_SCHEDULING_THREAD,
Boolean.toString(GobblinClusterConfigurationKeys.JOB_EXECUTE_IN_SCHEDULING_THREAD_DEFAULT)))) {
jobScheduler.runJob(jobProps, jobListener);
} else {
cancellable = jobScheduler.scheduleJobImmediately(jobProps, jobListener);
}
} catch (Throwable t) {
throw new JobExecutionException(t);
}
}
@Override
public void interrupt() throws UnableToInterruptJobException {
if (cancellable != null) {
try {
if (cancellable.cancel(false)) {
return;
}
} catch (Exception e) {
log.error("Failed to gracefully cancel job. Attempting to force cancellation.", e);
}
try {
cancellable.cancel(true);
} catch (Exception e) {
throw new UnableToInterruptJobException(e);
}
}
}
}