UidValueResolver.php

<?php


/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\HttpKernel\Controller\ArgumentResolver;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\Uid\AbstractUid;
final class UidValueResolver implements ValueResolverInterface {
    public function resolve(Request $request, ArgumentMetadata $argument) : array {
        if ($argument->isVariadic() || !\is_string($value = $request->attributes
            ->get($argument->getName())) || null === ($uidClass = $argument->getType()) || !is_subclass_of($uidClass, AbstractUid::class, true)) {
            return [];
        }
        try {
            return [
                $uidClass::fromString($value),
            ];
        } catch (\InvalidArgumentException $e) {
            throw new NotFoundHttpException(\sprintf('The uid for the "%s" parameter is invalid.', $argument->getName()), $e);
        }
    }

}