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<?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\Routing\Loader;
use Symfony\Component\Config\FileLocatorInterface;
use Symfony\Component\Config\Loader\DirectoryAwareLoaderInterface;
use Symfony\Component\Config\Loader\Loader;
use Symfony\Component\Config\Resource\DirectoryResource;
use Symfony\Component\Routing\RouteCollection;
/**
* A loader that discovers controller classes in a directory that follows PSR-4.
*
* @author Alexander M. Turek <me@derrabus.de>
*/
final class Psr4DirectoryLoader extends Loader implements DirectoryAwareLoaderInterface
{
private ?string $currentDirectory = null;
public function __construct(
private readonly FileLocatorInterface $locator,
) {
// PSR-4 directory loader has no env-aware logic, so we drop the $env constructor parameter.
parent::__construct();
}
/**
* @param array{path: string, namespace: string} $resource
*/
public function load(mixed $resource, string $type = null): ?RouteCollection
{
$path = $this->locator->locate($resource['path'], $this->currentDirectory);
if (!is_dir($path)) {
return new RouteCollection();
}
return $this->loadFromDirectory($path, trim($resource['namespace'], '\\'));
}
public function supports(mixed $resource, string $type = null): bool
{
return ('attribute' === $type || 'annotation' === $type) && \is_array($resource) && isset($resource['path'], $resource['namespace']);
}
public function forDirectory(string $currentDirectory): static
{
$loader = clone $this;
$loader->currentDirectory = $currentDirectory;
return $loader;
}
private function loadFromDirectory(string $directory, string $psr4Prefix): RouteCollection
{
$collection = new RouteCollection();
$collection->addResource(new DirectoryResource($directory, '/\.php$/'));
$files = iterator_to_array(new \RecursiveIteratorIterator(
new \RecursiveCallbackFilterIterator(
new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
fn (\SplFileInfo $current) => !str_starts_with($current->getBasename(), '.')
),
\RecursiveIteratorIterator::SELF_FIRST
));
usort($files, fn (\SplFileInfo $a, \SplFileInfo $b) => (string) $a > (string) $b ? 1 : -1);
/** @var \SplFileInfo $file */
foreach ($files as $file) {
if ($file->isDir()) {
$collection->addCollection($this->loadFromDirectory($file->getPathname(), $psr4Prefix.'\\'.$file->getFilename()));
continue;
}
if ('php' !== $file->getExtension() || !class_exists($className = $psr4Prefix.'\\'.$file->getBasename('.php')) || (new \ReflectionClass($className))->isAbstract()) {
continue;
}
$collection->addCollection($this->import($className, 'attribute'));
}
return $collection;
}
}
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