/**
* @param ServerRequestInterface $request
* @param ResponseInterface $response
* @param callable $next
* @return ResponseInterface
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next = null)
{
$request = $this->decorateRequest($request);
$response = $this->decorateResponse($response);
$relay = $this->relayBuilder->newInstance($this->middleware);
$error = $this->errorHandler;
$notFound = $this->notFoundHandler;
try {
$response = $relay($request, $response);
} catch (\Exception $ex) {
$response = $error($request, $response, $ex);
}
if (!$response instanceof ResponseInterface) {
throw new Exception\InvalidResponse();
}
if (null === $this->routeMap->getRouteMatch()) {
$response = $notFound($request, $response);
}
return $next ? $next($request, $response) : $response;
}
