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<?php |
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/** |
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* @package WPEmerge |
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* @author Atanas Angelov <[email protected]> |
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* @copyright 2018 Atanas Angelov |
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* @license https://www.gnu.org/licenses/gpl-2.0.html GPL-2.0 |
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* @link https://wpemerge.com/ |
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*/ |
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namespace WPEmerge\Routing; |
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use Psr\Http\Message\ResponseInterface; |
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use WPEmerge\Exceptions\Exception; |
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use WPEmerge\Facades\Response; |
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use WPEmerge\Helpers\Handler; |
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use WPEmerge\Responses\ResponsableInterface; |
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/** |
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* Represent a Closure or a controller method to be executed in response to a request |
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*/ |
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class PipelineHandler { |
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/** |
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* Actual handler |
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* |
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* @var Handler |
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*/ |
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protected $handler = null; |
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/** |
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* Constructor |
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* |
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* @param string|\Closure $handler |
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* @throws Exception |
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*/ |
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public function __construct( $handler ) { |
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$this->handler = new Handler( $handler, '', '\\App\\Controllers\\' ); |
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} |
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/** |
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* Get the handler |
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* |
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* @return Handler |
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*/ |
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public function get() { |
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return $this->handler; |
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} |
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/** |
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* Convert a user returned response to a ResponseInterface instance if possible. |
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* Return the original value if unsupported. |
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* |
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* @param mixed $response |
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* @return mixed |
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*/ |
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protected function getResponse( $response ) { |
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if ( is_string( $response ) ) { |
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return Response::output( $response ); |
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} |
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if ( is_array( $response ) ) { |
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return Response::json( $response ); |
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} |
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if ( $response instanceof ResponsableInterface ) { |
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return $response->toResponse(); |
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} |
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return $response; |
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} |
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/** |
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* Execute the handler |
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* |
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* @throws Exception |
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* @param mixed ...$arguments |
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* @return ResponseInterface |
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*/ |
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public function execute() { |
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$response = call_user_func_array( [$this->handler, 'execute'], func_get_args() ); |
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$response = $this->getResponse( $response ); |
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if ( ! $response instanceof ResponseInterface ) { |
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throw new Exception( |
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'Response returned by controller is not valid ' . |
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'(expected ' . ResponseInterface::class . '; received ' . gettype( $response ) . ').' |
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); |
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} |
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return $response; |
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} |
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} |
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htmlburger /
wpemerge
