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<?php |
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/** |
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* Async sockets |
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* |
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* @copyright Copyright (c) 2015-2017, Efimov Evgenij <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace AsyncSockets\RequestExecutor\Pipeline; |
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use AsyncSockets\Operation\OperationInterface; |
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use AsyncSockets\RequestExecutor\EventHandlerInterface; |
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use AsyncSockets\RequestExecutor\ExecutionContext; |
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use AsyncSockets\RequestExecutor\IoHandlerInterface; |
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use AsyncSockets\RequestExecutor\Metadata\RequestDescriptor; |
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use AsyncSockets\RequestExecutor\RequestExecutorInterface; |
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/** |
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* Class DelegatingIoHandler |
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*/ |
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class DelegatingIoHandler implements IoHandlerInterface |
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{ |
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/** |
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* List of nested handlers |
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* |
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* @var IoHandlerInterface[] |
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*/ |
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private $handlers; |
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/** |
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* DelegatingIoHandler constructor. |
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* |
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* @param IoHandlerInterface[] $handlers List of nested handlers |
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*/ |
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public function __construct(array $handlers) |
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{ |
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$this->handlers = $handlers; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function supports(OperationInterface $operation) |
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{ |
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return $this->getHandler($operation) !== null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function handle( |
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OperationInterface $operation, |
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RequestDescriptor $descriptor, |
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RequestExecutorInterface $executor, |
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EventHandlerInterface $eventHandler, |
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ExecutionContext $executionContext |
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) { |
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$handler = $this->getHandler($operation); |
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return $handler ? |
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$handler->handle($operation, $descriptor, $executor, $eventHandler, $executionContext) : |
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null; |
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} |
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/** |
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* Return handler for given operation if there is any |
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* |
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* @param OperationInterface $operation Operation to get handler for |
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* |
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* @return IoHandlerInterface|null |
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*/ |
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private function getHandler(OperationInterface $operation) |
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{ |
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foreach ($this->handlers as $handler) { |
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if ($handler->supports($operation)) { |
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return $handler; |
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} |
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} |
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return null; |
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} |
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} |
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edefimov /
async-sockets
