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<?php |
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/** |
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* GpsLab component. |
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* |
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* @author Peter Gribanov <[email protected]> |
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* @copyright Copyright (c) 2011, Peter Gribanov |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace GpsLab\Component\Command\Handler\Locator; |
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use GpsLab\Component\Command\Command; |
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use Psr\Container\ContainerInterface; |
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class ContainerCommandHandlerLocator implements CommandHandlerLocator |
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{ |
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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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* @var array |
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*/ |
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private $command_handler_ids = []; |
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/** |
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* @param ContainerInterface $container |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* @param Command $command |
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* |
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* @return callable|null |
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*/ |
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public function findHandler(Command $command) |
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{ |
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$command_name = get_class($command); |
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if (!isset($this->command_handler_ids[$command_name])) { |
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return null; |
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} |
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return $this->resolve($this->command_handler_ids[$command_name]); |
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} |
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/** |
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* @param string $command_name |
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* @param string $service |
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* @param string $method |
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*/ |
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public function registerService($command_name, $service, $method = '__invoke') |
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{ |
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$this->command_handler_ids[$command_name] = [$service, $method]; |
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} |
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/** |
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* @param array $handler |
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* |
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* @return callable|null |
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*/ |
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private function resolve(array $handler) |
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{ |
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list($service, $method) = $handler; |
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if (is_callable($service)) { |
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return $service; |
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} |
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if (is_callable([$service, $method])) { |
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return [$service, $method]; |
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} |
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return null; |
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} |
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} |
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gpslab /
cqrs
