private function addHostToContext(RequestContext $context, array $parameters, &$referenceType) { list($host, $port) = $this->getHostAndPort($parameters['_domain']); if ($context->getHost() === $host) { return; } $context->setHost($host); $referenceType = UrlGeneratorInterface::ABSOLUTE_URL; if (!$port) { return; } if (isset($parameters['_ssl']) && true === $parameters['_ssl']) { $context->setHttpsPort($port); } else { $context->setHttpPort($port); } }