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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Di; |
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use Closure; |
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use InvalidArgumentException; |
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use Psr\Container\ContainerInterface; |
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use function get_class; |
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use function gettype; |
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use function is_int; |
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use function is_object; |
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/** |
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* State resetter allows resetting state of the services that are currently stored in the container and have "reset" |
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* callback defined. The reset should be triggered after each request-response cycle in case you build long-running |
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* applications with tools like [Swoole](https://www.swoole.co.uk/) or [RoadRunner](https://roadrunner.dev/). |
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*/ |
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final class StateResetter |
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{ |
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/** |
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* @var Closure[]|self[] |
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*/ |
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private array $resetters = []; |
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private ContainerInterface $container; |
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/** |
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* @param ContainerInterface $container Container to reset. |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Reset the container. |
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*/ |
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public function reset(): void |
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{ |
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foreach ($this->resetters as $resetter) { |
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if ($resetter instanceof self) { |
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$resetter->reset(); |
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continue; |
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} |
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$resetter($this->container); |
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} |
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} |
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/** |
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* @param Closure[]|self[] $resetters Array of reset callbacks. Each callback has access to the private and |
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* protected properties of the service instance, so you can set initial state of the service efficiently |
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* without creating a new instance. |
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*/ |
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public function setResetters(array $resetters): void |
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{ |
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$this->resetters = []; |
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foreach ($resetters as $serviceId => $callback) { |
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if (is_int($serviceId)) { |
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if (!$callback instanceof self) { |
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throw new InvalidArgumentException(sprintf( |
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'State resetter object should be instance of "%s", "%s" given.', |
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self::class, |
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$this->getType($callback) |
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)); |
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} |
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$this->resetters[] = $callback; |
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continue; |
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} |
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if (!$callback instanceof Closure) { |
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throw new InvalidArgumentException( |
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'Callback for state resetter should be closure in format ' . |
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'`function (ContainerInterface $container): void`. ' . |
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'Got "' . $this->getType($callback) . '".' |
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); |
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} |
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/** @var mixed $instance */ |
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$instance = $this->container->get($serviceId); |
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if (!is_object($instance)) { |
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throw new InvalidArgumentException( |
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'State resetter supports resetting objects only. Container returned ' . gettype($instance) . '.' |
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); |
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} |
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$this->resetters[] = $callback->bindTo($instance, get_class($instance)); |
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} |
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} |
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/** |
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* @param mixed $variable |
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*/ |
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private function getType($variable): string |
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{ |
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return is_object($variable) ? get_class($variable) : gettype($variable); |
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} |
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} |
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yiisoft /
di
