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<?php |
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namespace Penny; |
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use Interop\Container\ContainerInterface; |
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use Exception; |
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use ReflectionClass; |
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use FastRoute\Dispatcher as BaseDispatcher; |
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use Penny\Exception\MethodNotAllowedException; |
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use Penny\Exception\RouteNotFoundException; |
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use Psr\Http\Message\RequestInterface; |
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use Penny\Route\RouteInfo; |
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class Dispatcher |
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{ |
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/** |
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* Inner dispatcher. |
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* |
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* @var BaseDispatcher |
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*/ |
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private $router; |
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/** |
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* Service Container |
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* |
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* @var ContainerInterface |
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*/ |
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private $container; |
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/** |
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* Class constructor with required FastRoute dispatcher implementation. |
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* |
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* @param BaseDispatcher $router Inner router (based on Nikic FastRouter). |
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* @param ContainerInterface $container Dependency Injection container. |
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*/ |
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public function __construct(BaseDispatcher $router, ContainerInterface $container) |
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{ |
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$this->router = $router; |
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$this->container = $container; |
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} |
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/** |
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* Dispatching. |
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* |
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* @param RequestInterface $request Representation of an outgoing, |
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* client-side request. |
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* |
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* @throws RouteNotFoundException If the route is not found. |
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* @throws MethodNotAllowedException If the method is not allowed. |
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* @throws Exception If no one case is matched. |
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* |
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* @return RouteInfo |
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*/ |
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public function __invoke(RequestInterface $request) |
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{ |
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$router = $this->router; |
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$uri = $request->getUri(); |
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$dispatch = $router->dispatch( |
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$request->getMethod(), |
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$uri->getPath() |
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); |
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switch ($dispatch[0]) { |
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case BaseDispatcher::NOT_FOUND: |
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throw new RouteNotFoundException('Route with path '.$uri->getPath().' not found.'); |
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case BaseDispatcher::METHOD_NOT_ALLOWED: |
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throw new MethodNotAllowedException('Method '.$request->getMethod().' not allowed.'); |
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case BaseDispatcher::FOUND: |
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return $this->processRouteInfo($dispatch); |
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default: |
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throw new Exception(null, 500); |
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} |
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} |
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/** |
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* Process RouteInfo instance |
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* |
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* @param array $dispatch |
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* |
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* @return RouteInfo |
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*/ |
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private function processRouteInfo(array $dispatch) |
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{ |
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$controller = $this->container->get($dispatch[1][0]); |
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$method = $dispatch[1][1]; |
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$params = $dispatch[2]; |
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$function = (new ReflectionClass($controller))->name; |
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$eventName = "{$function}.{$method}"; // this improve ~1us |
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return new RouteInfo($eventName, [$controller, $method], $params); |
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} |
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} |
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pennyphp /
penny
