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<?php
namespace Drupal\Core\Controller;
use Drupal\Core\Utility\CallableResolver;
use Symfony\Component\HttpFoundation\Request;
/**
* ControllerResolver to enhance controllers beyond Symfony's basic handling.
*
* It adds one behavior:
*
* - By default, a controller name follows the class::method notation. This
* class adds the possibility to use a service from the container as a
* controller by using a service:method notation (Symfony uses the same
* convention).
*/
class ControllerResolver implements ControllerResolverInterface {
/**
* Constructs a new ControllerResolver.
*
* @param \Drupal\Core\Utility\CallableResolver $callableResolver
* The callable resolver.
*/
public function __construct(protected CallableResolver $callableResolver) {
}
/**
* {@inheritdoc}
*/
public function getControllerFromDefinition($controller, $path = '') {
try {
$callable = $this->callableResolver->getCallableFromDefinition($controller);
}
catch (\InvalidArgumentException $e) {
throw new \InvalidArgumentException(sprintf('The controller for URI "%s" is not callable.', $path), 0, $e);
}
return $callable;
}
/**
* {@inheritdoc}
*/
public function getController(Request $request): callable|FALSE {
if (!$controller = $request->attributes->get('_controller')) {
return FALSE;
}
return $this->getControllerFromDefinition($controller, $request->getPathInfo());
}
}
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