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<?php |
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/** |
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* This file is part of the Tarantool Client package. |
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* |
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* (c) Eugene Leonovich <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Tarantool\Client\Handler; |
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use Tarantool\Client\Connection\Connection; |
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use Tarantool\Client\Middleware\Middleware; |
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use Tarantool\Client\Packer\Packer; |
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use Tarantool\Client\Request\Request; |
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use Tarantool\Client\Response; |
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final class MiddlewareHandler implements Handler |
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{ |
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private $handler; |
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private $middlewares; |
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private $index = 0; |
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private function __construct(Handler $handler, array $middlewares) |
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{ |
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$this->handler = $handler; |
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$this->middlewares = $middlewares; |
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} |
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public static function create(Handler $handler, Middleware $middleware, Middleware ...$middlewares) : Handler |
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{ |
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if (!$handler instanceof self) { |
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return $middlewares |
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? new self($handler, \array_merge([$middleware], $middlewares)) |
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: new self($handler, [$middleware]); |
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} |
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$handler = clone $handler; |
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$handler->middlewares[] = $middleware; |
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if ($middlewares) { |
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$handler->middlewares = \array_merge($handler->middlewares, $middlewares); |
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} |
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return $handler; |
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} |
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public function handle(Request $request) : Response |
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{ |
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if (!isset($this->middlewares[$this->index])) { |
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return $this->handler->handle($request); |
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} |
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$new = clone $this; |
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++$new->index; |
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return $this->middlewares[$this->index]->process($request, $new); |
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} |
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public function getConnection() : Connection |
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{ |
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return $this->handler->getConnection(); |
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} |
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public function getPacker() : Packer |
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{ |
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return $this->handler->getPacker(); |
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} |
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} |
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tarantool-php /
client
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.