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<?php |
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/** |
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* Dispatcher executor |
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* User: moyo |
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* Date: 2018/5/30 |
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* Time: 9:57 AM |
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*/ |
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namespace Carno\Web\Chips\Dispatcher; |
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use Carno\Coroutine\Context; |
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use Carno\HTTP\Standard\ServerRequest; |
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use Carno\Web\Contracts\Controller\Extensional; |
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use Carno\Web\Controller\Based; |
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use Carno\Web\Exception\InvalidControllerException; |
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use Closure; |
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use Generator; |
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use Throwable; |
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trait Executor |
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{ |
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/** |
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* @param Context $ctx |
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* @param ServerRequest $sr |
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* @param callable $handler |
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* @param array $params |
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* @return Generator|array [response.http, result.raw] |
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* @throws Throwable |
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*/ |
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protected function calling(Context $ctx, ServerRequest $sr, callable $handler, array $params) |
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{ |
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if (is_array($handler)) { |
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list($controller, $action) = $handler; |
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return $controller instanceof Based |
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? yield $this->excController($controller, $action, $ctx, $sr, $params) |
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: yield $this->excObject($controller, $action, $this->basedAnonymous($ctx, $sr, $params)) |
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; |
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} elseif ($handler instanceof Closure) { |
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return yield $this->excClosure($handler, $this->basedAnonymous($ctx, $sr, $params)); |
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} else { |
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throw new InvalidControllerException; |
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} |
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} |
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/** |
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* @param Based $controller |
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* @param string $action |
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* @param Context $ctx |
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* @param ServerRequest $sr |
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* @param array $params |
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* @return array |
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* @throws Throwable |
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*/ |
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private function excController(Based $controller, string $action, Context $ctx, ServerRequest $sr, array $params) |
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{ |
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$session = (clone $controller)->initialize($ctx, $sr, $action, $params); |
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$extension = $session instanceof Extensional ? $session->extension() : null; |
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try { |
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$extension && $response = yield $extension->requesting($session); |
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if (is_null($response ?? null)) { |
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$result = yield $session->$action(); |
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$extension && $response = yield $extension->responding($session, $result); |
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} |
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} catch (Throwable $e) { |
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if ($extension) { |
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$response = yield $extension->exceptions($session, $e); |
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} else { |
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throw $e; |
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} |
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} |
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return [$response ?? $session->response(), $response ?? $result ?? null]; |
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} |
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/** |
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* @param Closure $handler |
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* @param Based $anonymous |
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* @return array |
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*/ |
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private function excClosure(Closure $handler, Based $anonymous) |
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{ |
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return array_reverse([yield $handler($anonymous), $anonymous->response()]); |
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} |
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/** |
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* @param object $class |
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* @param string $method |
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* @param Based $anonymous |
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* @return array |
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*/ |
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private function excObject(object $class, string $method, Based $anonymous) |
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{ |
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return array_reverse([yield $class->$method($anonymous), $anonymous->response()]); |
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} |
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/** |
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* @param Context $ctx |
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* @param ServerRequest $sr |
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* @param array $params |
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* @return Based |
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*/ |
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private function basedAnonymous(Context $ctx, ServerRequest $sr, array $params) : Based |
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{ |
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return (new class extends Based { |
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})->initialize($ctx, $sr, 'invoke', $params); |
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} |
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} |
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carno-php /
web
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