/**
* @param JobModel $job
* @param IStageProcessor $stage
* @param null $preloadedData is used when status is STATUS_RETRY
* @throws HandlerException
* @return bool
*/
protected function handleStage(JobModel $job, IStageProcessor $stage, $preloadedData = null)
{
$number = $this->getStageNumber($stage);
$this->stageData = null;
// reset stage data result
try {
if ($number === 1) {
// pass the parsed job data when this is the first stage.
$continue = $stage->process($preloadedData ?: $job->getParsedData());
} else {
if ($preloadedData) {
$processData = $preloadedData;
} else {
$lastStageNumber = $number - 1;
$lastStage = $this->stageRepo->findByJobIdAndStage($job->id, $this->getStageName($lastStageNumber));
if (is_null($lastStage)) {
throw new ConnectorException("Last Stage output is NULL, array expected.");
}
$processData = $lastStage->getParsedData();
}
// pass the last processed stage's parsed data
$continue = $stage->process($processData);
}
$stageModel = $this->stageRepo->createStub(['stage' => $stage->getName(), 'data' => $this->stageData ?: [], 'status' => StageModel::STATUS_PROCESSED]);
if ($this->jobRepo->attachStage($job->id, $stageModel) === false) {
throw new HandlerException("Could not attach StageModel to JobModel (database/foreign key issue?).");
}
return $continue;
} catch (ConnectorException $e) {
throw new HandlerException($e->getMessage());
} catch (\Exception $e) {
throw new HandlerException("Unexpected exception while processing stage (job_id: {$job->id}).");
}
}
