Class IndexGraphLoaderImpl

libs/routing/index_graph_loader.cpp:40–92

using namespace std;

class IndexGraphLoaderImpl final : public IndexGraphLoader
{
public:
  IndexGraphLoaderImpl(VehicleType vehicleType, bool loadAltitudes,
                       shared_ptr<VehicleModelFactoryInterface> vehicleModelFactory,
                       shared_ptr<EdgeEstimator> estimator, MwmDataSource & dataSource, RoutingOptions routingOptions,
                       TimeGetterT timeGetter)
    : m_vehicleType(vehicleType)
    , m_loadAltitudes(loadAltitudes)
    , m_dataSource(dataSource)
    , m_vehicleModelFactory(std::move(vehicleModelFactory))
    , m_estimator(std::move(estimator))
    , m_avoidRoutingOptions(routingOptions)
  {
    CHECK(m_vehicleModelFactory, ());
    CHECK(m_estimator, ());

    if (timeGetter)
      m_currentTimeGetter = std::move(timeGetter);
  }

  // IndexGraphLoader overrides:
  IndexGraph & GetIndexGraph(NumMwmId numMwmId) override;
  Geometry & GetGeometry(NumMwmId numMwmId) override;
  vector<RouteSegment::SpeedCamera> GetSpeedCameraInfo(Segment const & segment) override;
  void Clear() override;

private:
  using GeometryPtrT = shared_ptr<Geometry>;
  GeometryPtrT CreateGeometry(NumMwmId numMwmId);
  using GraphPtrT = unique_ptr<IndexGraph>;
  GraphPtrT CreateIndexGraph(NumMwmId numMwmId, GeometryPtrT & geometry);

  VehicleType m_vehicleType;
  bool m_loadAltitudes;
  MwmDataSource & m_dataSource;
  shared_ptr<VehicleModelFactoryInterface> m_vehicleModelFactory;
  shared_ptr<EdgeEstimator> m_estimator;

  struct GraphAttrs
  {
    GeometryPtrT m_geometry;
    // May be nullptr, because it has "lazy" loading.
    GraphPtrT m_graph;
  };
  std::unordered_map<NumMwmId, GraphAttrs> m_graphs;

  ankerl::unordered_dense::map<NumMwmId, SpeedCamerasMapT> m_cachedCameras;
  SpeedCamerasMapT const & ReceiveSpeedCamsFromMwm(NumMwmId numMwmId);

  RoutingOptions m_avoidRoutingOptions;
  std::function<time_t()> m_currentTimeGetter = [time = GetCurrentTimestamp()]() { return time; };
};

IndexGraph & IndexGraphLoaderImpl::GetIndexGraph(NumMwmId numMwmId)
{