/**
* @return string
*/
public function getRequestId()
{
if ($this->request->hasHeader($this->headerName)) {
return $this->request->getHeader($this->headerName);
}
return $this->fallback->getRequestId();
}
/**
* @param FilterResponseEvent $event
*/
public function onResponse(FilterResponseEvent $event)
{
if (!$event->getRequestType() === HttpKernelInterface::MASTER_REQUEST) {
return;
}
if (null === $this->idProvider->getRequestId()) {
return;
}
$event->getResponse()->headers->set($this->responseHeader, $this->idProvider->getRequestId());
}
