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<?php |
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/** |
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* Service dispatcher |
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* User: moyo |
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* Date: 20/09/2017 |
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* Time: 4:13 PM |
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*/ |
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namespace Carno\RPC\Service; |
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use Carno\RPC\Chips\DInstances; |
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use Carno\RPC\Exception\InvalidExecutingResultException; |
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use Carno\RPC\Exception\RequestMethodNotFoundException; |
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use Carno\RPC\Exception\RequestServiceNotFoundException; |
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use Carno\RPC\Protocol\Request; |
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use Carno\RPC\Protocol\Response; |
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use Google\Protobuf\Internal\Message; |
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class Dispatcher |
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{ |
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use DInstances; |
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/** |
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* @var Router |
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*/ |
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private $router = null; |
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/** |
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* @var Instances |
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*/ |
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private $instances = null; |
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/** |
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* Dispatcher constructor. |
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* @param Router $router |
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* @param Instances $instances |
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*/ |
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public function __construct(Router $router, Instances $instances) |
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{ |
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$this->router = $router; |
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$this->instances = $instances; |
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} |
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/** |
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* @param Request $request |
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* @return Response |
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*/ |
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public function invoke(Request $request) |
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{ |
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if (empty($route = $this->router->get($request->server(), $request->service()))) { |
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throw new RequestServiceNotFoundException("{$request->server()}.{$request->service()}"); |
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} |
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/** |
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* @var Specification $spec |
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* @var string $impl |
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*/ |
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list($spec, $impl) = $route; |
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if (empty($requestC = $spec->getMethodRequest($request->method()))) { |
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throw new RequestMethodNotFoundException($request->method()); |
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} |
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$program = $this->instances->get($impl); |
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$method = $request->method(); |
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$result = yield $program->$method($request->struct(new $requestC)); |
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if ($result instanceof Message) { |
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return new Response($request, $result); |
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} else { |
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throw new InvalidExecutingResultException; |
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} |
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} |
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} |
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carno-php /
rpc
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