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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Yii\Web; |
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use Psr\EventDispatcher\EventDispatcherInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Yiisoft\Middleware\Dispatcher\MiddlewareDispatcher; |
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use Yiisoft\Yii\Web\Event\AfterEmit; |
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use Yiisoft\Yii\Web\Event\AfterRequest; |
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use Yiisoft\Yii\Web\Event\ApplicationShutdown; |
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use Yiisoft\Yii\Web\Event\ApplicationStartup; |
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use Yiisoft\Yii\Web\Event\BeforeRequest; |
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/** |
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* Application is the entry point for a web application. |
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* For more details and usage information on Application, see the [guide article on |
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* applications](guide:structure-applications). |
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*/ |
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final class Application |
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{ |
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private MiddlewareDispatcher $dispatcher; |
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private EventDispatcherInterface $eventDispatcher; |
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private RequestHandlerInterface $fallbackHandler; |
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public function __construct( |
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MiddlewareDispatcher $dispatcher, |
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EventDispatcherInterface $eventDispatcher, |
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RequestHandlerInterface $fallbackHandler |
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) { |
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$this->dispatcher = $dispatcher; |
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$this->eventDispatcher = $eventDispatcher; |
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$this->fallbackHandler = $fallbackHandler; |
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} |
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public function start(): void |
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{ |
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$this->eventDispatcher->dispatch(new ApplicationStartup()); |
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} |
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public function shutdown(): void |
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{ |
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$this->eventDispatcher->dispatch(new ApplicationShutdown()); |
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} |
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public function afterEmit(?ResponseInterface $response): void |
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{ |
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$this->eventDispatcher->dispatch(new AfterEmit($response)); |
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} |
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public function handle(ServerRequestInterface $request): ResponseInterface |
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{ |
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$this->eventDispatcher->dispatch(new BeforeRequest($request)); |
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try { |
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return $response = $this->dispatcher->dispatch($request, $this->fallbackHandler); |
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} finally { |
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$this->eventDispatcher->dispatch(new AfterRequest($response ?? null)); |
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} |
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} |
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} |
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yiisoft /
yii-web
