Zend\Stratigility\Dispatch::isNotInteropMiddleware PHP Метод

    private function isNotInteropMiddleware($handler, RequestInterface $request)
    {
        if ($handler instanceof ServerMiddlewareInterface) {
            return false;
        }
        if (!$this->responsePrototype) {
            throw new Exception\MissingResponsePrototypeException('Invoking callable middleware following http-interop middleware, ' . 'but no response prototype is present; please inject one in your ' . 'MiddlewarePipe or ensure Stratigility callable middleware exists ' . 'in the outer layer of your application.');
        }
        if (!$request instanceof ServerRequestInterface) {
            throw new Exception\InvalidRequestTypeException('Invoking callable middleware following http-interop middleware, ' . 'but a server request was not provided.');
        }
        return true;
    }