void ConnectionManagerImpl::ActiveStream::snapScopedRouteConfig() {
  // NOTE: if a RDS subscription hasn't got a RouteConfiguration back, a Router::NullConfigImpl is
  // returned, in that case we let it pass.
  snapped_route_config_ = snapped_scoped_routes_config_->getRouteConfig(*request_headers_);
  if (snapped_route_config_ == nullptr) {
    ENVOY_STREAM_LOG(trace, "can't find SRDS scope.", *this);
    // TODO(stevenzzzz): Consider to pass an error message to router filter, so that it can
    // send back 404 with some more details.
    snapped_route_config_ = std::make_shared<Router::NullConfigImpl>();
  }
}
void ConnectionManagerImpl::ActiveStream::snapScopedRouteConfig() {
   
   
  snapped_route_config_ = snapped_scoped_routes_config_->getRouteConfig(*request_headers_);
  if (snapped_route_config_ == nullptr) {
    ENVOY_STREAM_LOG(trace, "can't find SRDS scope.", *this);
     
     
    snapped_route_config_ = std::make_shared<Router::NullConfigImpl>();
  }
}