public function onKernelResponse(FilterResponseEvent $event)
    {
        $locale = $this->localeProvider->determinePreferredLocale();

        // Unable to determine preferred locale? No need to hand out a cookie then.
        if (empty($locale)) {
            return;
        }

        // Did the request already contain the proper cookie value? No need to hand out a cookie then.
        $requestCookie = $this->cookieHelper->read($event->getRequest());
        if ($requestCookie && $requestCookie->getValue() === $locale) {
            $this->logger->debug(sprintf(
                'Locale cookie already set to "%s", nothing to do here',
                $locale
            ));
            return;
        }

        $this->cookieHelper->write($event->getResponse(), $locale);
        $this->logger->notice(sprintf("Set locale cookie to %s", $locale));
    }