public function __construct(RouteDefaultsProviderInterface $routeDefaultsProvider, RequestStack $requestStack, KernelFactoryInterface $kernelFactory, WebspaceManagerInterface $webspaceManager, EventDispatcherInterface $eventDispatcher, array $previewDefaults, $environment)
{
$this->routeDefaultsProvider = $routeDefaultsProvider;
$this->requestStack = $requestStack;
$this->kernelFactory = $kernelFactory;
$this->webspaceManager = $webspaceManager;
$this->eventDispatcher = $eventDispatcher;
$this->previewDefaults = $previewDefaults;
$this->environment = $environment;
}