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MiddlewareResolver.php
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MiddlewareResolver.php
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<?php
namespace Horizom\Dispatcher;
use TypeError;
use Psr\Container\ContainerInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use function get_class;
use function gettype;
class MiddlewareResolver implements MiddlewareResolverInterface
{
/**
* @var ContainerInterface
*/
private $container;
public function __construct(?ContainerInterface $container = null)
{
$this->container = $container;
}
/**
* @param MiddlewareInterface|RequestHandlerInterface|string $middleware
*
* @return MiddlewareInterface|RequestHandlerInterface
*/
public function resolve($middleware)
{
if (is_string($middleware) && $this->container !== null) {
$middleware = $this->container->get($middleware);
}
if (!$middleware instanceof MiddlewareInterface && !$middleware instanceof RequestHandlerInterface) {
$type = gettype($middleware);
if ($type === 'object') {
$type = get_class($middleware);
}
throw new TypeError(
"Middleware must implement MiddlewareInterface or RequestHandlerInterface " .
"instance of {$type} got"
);
}
return $middleware;
}
}