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<?php |
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/** |
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* Class QueueRequestHandler |
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* |
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* @link https://github.com/libreworks/caridea-dispatch |
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* |
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* @filesource QueueRequestHandler.php |
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* @created 08.03.2019 |
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* @package chillerlan\HTTP\Psr15 |
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* @author smiley <[email protected]> |
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* @copyright 2019 smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\HTTP\Psr15; |
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use chillerlan\HTTP\Psr15\Middleware\MiddlewareException; |
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use chillerlan\HTTP\Psr17\ResponseFactory; |
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use Psr\Http\Message\{ResponseInterface, ServerRequestInterface}; |
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use Psr\Http\Server\{MiddlewareInterface, RequestHandlerInterface}; |
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class QueueRequestHandler implements MiddlewareInterface, RequestHandlerInterface{ |
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/** |
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* @var \Psr\Http\Server\MiddlewareInterface[] |
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*/ |
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protected $middlewareStack = []; |
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/** |
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* @var \Psr\Http\Server\RequestHandlerInterface |
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*/ |
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protected $fallbackHandler; |
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/** |
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* QueueRequestHandler constructor. |
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* |
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* @param iterable|null $middlewareStack |
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* @param \Psr\Http\Server\RequestHandlerInterface|null $fallbackHandler |
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*/ |
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public function __construct(iterable $middlewareStack = null, RequestHandlerInterface $fallbackHandler = null){ |
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$this->fallbackHandler = $fallbackHandler ?? new EmptyResponseHandler(new ResponseFactory, 500); |
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$this->addStack($middlewareStack ?? []); |
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} |
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/** |
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* @param iterable|\Psr\Http\Server\MiddlewareInterface[] $middlewareStack |
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* |
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* @return \chillerlan\HTTP\Psr15\QueueRequestHandler |
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* @throws \Exception |
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*/ |
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public function addStack(iterable $middlewareStack):QueueRequestHandler{ |
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foreach($middlewareStack as $middleware){ |
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if(!$middleware instanceof MiddlewareInterface){ |
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throw new MiddlewareException('invalid middleware'); |
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} |
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$this->middlewareStack[] = $middleware; |
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} |
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return $this; |
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} |
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/** |
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* @param \Psr\Http\Server\MiddlewareInterface $middleware |
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* |
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* @return \chillerlan\HTTP\Psr15\QueueRequestHandler |
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*/ |
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public function add(MiddlewareInterface $middleware):QueueRequestHandler{ |
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$this->middlewareStack[] = $middleware; |
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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 handle(ServerRequestInterface $request):ResponseInterface{ |
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return (new QueueRunner($this->middlewareStack, $this->fallbackHandler))->handle($request); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler):ResponseInterface{ |
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return (new QueueRunner($this->middlewareStack, $handler))->handle($request); |
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} |
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} |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.