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<?php |
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/* |
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* This file is part of php-task library. |
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* |
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* (c) php-task |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Task\Scheduler; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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use Task\Builder\TaskBuilderFactoryInterface; |
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use Task\Event\Events; |
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use Task\Event\TaskEvent; |
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use Task\Event\TaskExecutionEvent; |
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use Task\Storage\TaskExecutionRepositoryInterface; |
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use Task\Storage\TaskRepositoryInterface; |
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use Task\TaskInterface; |
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use Task\TaskStatus; |
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/** |
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* Scheduler creates and manages tasks. |
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*/ |
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class TaskScheduler implements TaskSchedulerInterface |
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{ |
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/** |
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* @var TaskBuilderFactoryInterface |
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*/ |
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private $factory; |
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/** |
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* @var TaskRepositoryInterface |
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*/ |
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private $taskRepository; |
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/** |
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* @var TaskExecutionRepositoryInterface |
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*/ |
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private $taskExecutionRepository; |
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/** |
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* @var EventDispatcherInterface |
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*/ |
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private $eventDispatcher; |
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/** |
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* @param TaskBuilderFactoryInterface $factory |
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* @param TaskRepositoryInterface $taskRepository |
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* @param TaskExecutionRepositoryInterface $taskExecutionRepository |
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* @param EventDispatcherInterface $eventDispatcher |
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*/ |
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public function __construct( |
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TaskBuilderFactoryInterface $factory, |
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TaskRepositoryInterface $taskRepository, |
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TaskExecutionRepositoryInterface $taskExecutionRepository, |
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EventDispatcherInterface $eventDispatcher |
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) { |
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$this->factory = $factory; |
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$this->taskRepository = $taskRepository; |
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$this->taskExecutionRepository = $taskExecutionRepository; |
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$this->eventDispatcher = $eventDispatcher; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function createTask($handlerClass, $workload = null) |
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{ |
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return $this->factory->createTaskBuilder($this->taskRepository->create($handlerClass, $workload)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addTask(TaskInterface $task) |
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{ |
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$this->eventDispatcher->dispatch(Events::TASK_CREATE, new TaskEvent($task)); |
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$this->taskRepository->persist($task); |
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$this->taskRepository->flush(); |
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$this->scheduleTask($task); |
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$this->taskExecutionRepository->flush(); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function scheduleTasks() |
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{ |
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$tasks = $this->taskRepository->findEndBeforeNow(); |
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foreach ($tasks as $task) { |
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$this->scheduleTask($task); |
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} |
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$this->taskExecutionRepository->flush(); |
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} |
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/** |
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* Schedule execution for given task. |
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* |
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* @param TaskInterface $task |
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*/ |
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protected function scheduleTask(TaskInterface $task) |
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{ |
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$scheduleTime = $task->getInterval() ? $task->getInterval()->getNextRunDate() : $task->getFirstExecution(); |
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if (null === $this->taskExecutionRepository->findByStartTime($task, $scheduleTime)) { |
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$execution = $this->taskExecutionRepository->create($task, $scheduleTime); |
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$execution->setStatus(TaskStatus::PLANNED); |
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$this->eventDispatcher->dispatch( |
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Events::TASK_EXECUTION_CREATE, |
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new TaskExecutionEvent($task, $execution) |
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); |
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$this->taskExecutionRepository->persist($execution); |
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} |
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} |
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} |
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php-task /
php-task
