@Override
public final void execute(final JobExecutionContext context) throws JobExecutionException {
log.debug("Elastic job: job execute begin, job execution context:{}.", context);
shardingService.shardingIfNecessary();
JobExecutionMultipleShardingContext shardingContext =
executionContextService.getJobExecutionShardingContext();
if (executionService.misfireIfNecessary(shardingContext.getShardingItems())) {
log.info(
"Previous job is still running, new job will start after previous job completed. Misfired job had recorded.");
return;
}
executionService.cleanPreviousExecutionInfo();
executeJobInternal(shardingContext);
log.debug("Elastic job: execute normal completed, sharding context:{}.", shardingContext);
while (!executionService.getMisfiredJobItems(shardingContext.getShardingItems()).isEmpty()
&& !stoped
&& !shardingService.isNeedSharding()) {
log.debug("Elastic job: execute misfired job, sharding context:{}.", shardingContext);
executionService.clearMisfire(shardingContext.getShardingItems());
executeJobInternal(shardingContext);
log.debug("Elastic job: misfired job completed, sharding context:{}.", shardingContext);
}
if (configService.isFailover() && !stoped) {
failoverService.failoverIfNecessary();
}
log.debug("Elastic job: execute all completed, job execution context:{}.", context);
}
private void executeJobInternal(final JobExecutionMultipleShardingContext shardingContext) {
if (shardingContext.getShardingItems().isEmpty()) {
log.debug("Elastic job: sharding item is empty, job execution context:{}.", shardingContext);
return;
}
executionService.registerJobBegin(shardingContext);
executeJob(shardingContext);
executionService.registerJobCompleted(shardingContext);
if (configService.isFailover()) {
failoverService.updateFailoverComplete(shardingContext.getShardingItems());
}
}
/**
* 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.
*/
public void resumeCrashedJob() {
serverService.persistServerOnline();
executionService.clearRunningInfo(shardingService.getLocalHostShardingItems());
if (serverService.isJobStopedManually()) {
return;
}
try {
scheduler.resumeAll();
} catch (final SchedulerException ex) {
throw new JobException(ex);
}
}