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<?php |
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namespace T4web\Cron\Executor; |
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use Zend\EventManager\EventManager; |
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use Cron\Job\JobInterface; |
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use Cron\Report\ReportInterface; |
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use Cron\Report\CronReport; |
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use Cron\Executor\ExecutorInterface; |
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use T4web\Cron\JobEndedEvent; |
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use T4web\Cron\Job\ShellJob; |
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class Executor implements ExecutorInterface |
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{ |
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/** |
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* @var JobInterface[] |
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*/ |
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private $jobs; |
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/** |
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* @var EventManager |
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*/ |
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private $eventManager; |
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/** |
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* @var array |
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*/ |
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private $processedJobs = []; |
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/** |
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* @param JobInterface[] $jobs |
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* |
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* @return ReportInterface |
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*/ |
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public function execute(array $jobs) |
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{ |
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$report = new CronReport(); |
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$this->jobs = $jobs; |
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$this->startProcesses($report); |
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return $report; |
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} |
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/** |
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* @param CronReport $report |
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*/ |
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protected function startProcesses(CronReport $report) |
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{ |
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foreach ($this->jobs as $job) { |
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$report->addJobReport($job->getReport()); |
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// :) brilliantly |
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$job->run($job->getReport()); |
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} |
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} |
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private function getEventManager() |
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{ |
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if (!$this->eventManager) { |
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$this->eventManager = new EventManager(); |
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$this->eventManager->setIdentifiers(get_class($this)); |
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} |
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return $this->eventManager; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isRunning() |
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{ |
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$isRunning = false; |
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foreach ($this->jobs as $id => $job) { |
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if ($job->isRunning()) { |
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$isRunning = true; |
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} else { |
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if (isset($this->processedJobs[$id])) { |
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continue; |
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} |
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$event = new JobEndedEvent(); |
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$event->setTarget($this); |
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$event->setJob($job); |
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$event->setReport($job->getReport()); |
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$this->getEventManager()->trigger($event); |
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$this->processedJobs[$id] = true; |
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} |
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} |
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return $isRunning; |
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} |
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/** |
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* @return ShellJob[] |
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*/ |
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public function getRunningJobs() |
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{ |
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$jobs = []; |
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foreach ($this->jobs as $job) { |
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if ($job->isRunning()) { |
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$jobs[] = $job; |
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} |
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} |
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return $jobs; |
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} |
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} |
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: