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<?php |
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/** |
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* @link https://github.com/vuongxuongminh/laravel-async |
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* |
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* @copyright (c) Vuong Xuong Minh |
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* @license [MIT](https://opensource.org/licenses/MIT) |
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*/ |
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namespace VXM\Async; |
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use Closure; |
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use Illuminate\Contracts\Events\Dispatcher as EventDispatcher; |
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use Illuminate\Support\Str; |
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use Spatie\Async\Process\Runnable; |
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use VXM\Async\Runtime\ParentRuntime; |
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/** |
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* @author Vuong Minh <[email protected]> |
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* @since 1.0.0 |
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*/ |
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class Async |
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{ |
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/** |
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* A pool manage async processes. |
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* |
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* @var Pool |
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*/ |
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protected $pool; |
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/** |
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* Event dispatcher manage async events. |
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* |
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* @var EventDispatcher |
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*/ |
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protected $events; |
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/** |
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* Create a new Async instance. |
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* |
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* @param \VXM\Async\Pool $pool |
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* @param \Illuminate\Contracts\Events\Dispatcher $events |
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*/ |
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public function __construct(Pool $pool, EventDispatcher $events) |
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{ |
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$this->pool = $pool; |
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$this->events = $events; |
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} |
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/** |
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* Execute async job. |
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* |
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* @param callable|string|object $job need to execute. |
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* @param array $events event. Have key is an event name, value is a callable triggered when event |
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* happen, have three events `error`, `success`, `timeout`. |
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* @param int|null $outputLength |
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* @return static |
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*/ |
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public function run($job, array $events = [], int $outputLength = null): self |
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{ |
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$process = $this->pool->add($this->makeJob($job), $outputLength); |
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$this->addProcessListeners($events, $process); |
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$process->then($this->makeProcessListener('success', $process)); |
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$process->catch($this->makeProcessListener('error', $process)); |
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$process->timeout($this->makeProcessListener('timeout', $process)); |
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return $this; |
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} |
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/** |
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* Batch execute async jobs. |
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* |
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* @param array $jobs |
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* @return static |
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* @see run() |
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* @since 2.0.0 |
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*/ |
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public function batchRun(...$jobs): self |
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{ |
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foreach ($jobs as $job) { |
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$events = []; |
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$outputLength = null; |
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if (is_array($job)) { |
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if (count($job) === 2) { |
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[$job, $events] = $job; |
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} else { |
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[$job, $events, $outputLength] = $job; |
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} |
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} |
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$this->run($job, $events, $outputLength); |
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} |
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return $this; |
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} |
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/** |
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* Wait until all async jobs done and return job results. |
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* |
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* @return array |
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*/ |
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public function wait() |
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{ |
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$results = $this->pool->wait(); |
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$this->pool->flush(); |
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return $results; |
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} |
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/** |
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* Make async job. |
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* |
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* @param $job |
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* |
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* @return mixed |
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*/ |
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protected function makeJob($job) |
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{ |
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if (is_string($job)) { |
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return $this->createClassJob($job); |
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} |
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return $job; |
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} |
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/** |
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* Create class and method job. |
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* |
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* @param string $job |
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* |
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* @return Closure |
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*/ |
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protected function createClassJob(string $job): Closure |
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{ |
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[$class, $method] = Str::parseCallback($job, 'handle'); |
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return function () use ($class, $method) { |
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return app()->call($class.'@'.$method); |
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}; |
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} |
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/** |
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* Listen events of process given. |
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* |
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* @param array $events |
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* @param Runnable $process |
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*/ |
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protected function addProcessListeners(array $events, Runnable $process): void |
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{ |
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foreach ($events as $event => $callable) { |
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$this->events->listen("async.{$event}_{$process->getId()}", $callable); |
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} |
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} |
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/** |
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* Make a base listener for integration with [[EventDispatcher]]. |
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* |
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* @param string $event |
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* @param Runnable $process |
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* |
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* @return callable |
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*/ |
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protected function makeProcessListener(string $event, Runnable $process): callable |
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{ |
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return function (...$args) use ($event, $process) { |
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$event = "async.{$event}_{$process->getId()}"; |
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$this->events->dispatch($event, $args); |
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$this->events->forget($event); |
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}; |
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} |
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/** |
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* Create a new process for run a job. |
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* |
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* @param callable $job need to execute. |
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* |
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* @return Runnable process. |
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* @deprecated since 2.1.0 |
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*/ |
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protected function createProcess($job): Runnable |
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{ |
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return ParentRuntime::createProcess($job); |
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} |
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/** |
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* Get current pool. |
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* |
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* @return Pool |
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* @since 2.1.0 |
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*/ |
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public function getPool(): Pool |
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{ |
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return $this->pool; |
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} |
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} |
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.