osrm-backend/include/engine/api/trip_api.hpp
2016-04-05 22:58:32 +02:00

111 lines
3.8 KiB
C++

#ifndef ENGINE_API_TRIP_HPP
#define ENGINE_API_TRIP_HPP
#include "engine/api/route_api.hpp"
#include "engine/api/trip_parameters.hpp"
#include "engine/datafacade/datafacade_base.hpp"
#include "engine/internal_route_result.hpp"
#include "util/integer_range.hpp"
namespace osrm
{
namespace engine
{
namespace api
{
class TripAPI final : public RouteAPI
{
public:
TripAPI(const datafacade::BaseDataFacade &facade_, const TripParameters &parameters_)
: RouteAPI(facade_, parameters_), parameters(parameters_)
{
}
void MakeResponse(const std::vector<std::vector<NodeID>> &sub_trips,
const std::vector<InternalRouteResult> &sub_routes,
const std::vector<PhantomNode> &phantoms,
util::json::Object &response) const
{
auto number_of_routes = sub_trips.size();
util::json::Array routes;
routes.values.reserve(number_of_routes);
BOOST_ASSERT(sub_trips.size() == sub_routes.size());
for (auto index : util::irange<std::size_t>(0UL, sub_trips.size()))
{
auto route = MakeRoute(sub_routes[index].segment_end_coordinates,
sub_routes[index].unpacked_path_segments,
sub_routes[index].source_traversed_in_reverse,
sub_routes[index].target_traversed_in_reverse);
routes.values.push_back(std::move(route));
}
response.values["waypoints"] = MakeWaypoints(sub_trips, phantoms);
response.values["trips"] = std::move(routes);
response.values["code"] = "ok";
}
protected:
// FIXME this logic is a little backwards. We should change the output format of the
// trip plugin routing algorithm to be easier to consume here.
util::json::Array MakeWaypoints(const std::vector<std::vector<NodeID>> &sub_trips,
const std::vector<PhantomNode> &phantoms) const
{
util::json::Array waypoints;
waypoints.values.reserve(parameters.coordinates.size());
struct TripIndex
{
TripIndex() = default;
TripIndex(unsigned sub_trip_index_, unsigned point_index_)
: sub_trip_index(sub_trip_index_), point_index(point_index_)
{
}
unsigned sub_trip_index = std::numeric_limits<unsigned>::max();
unsigned point_index = std::numeric_limits<unsigned>::max();
bool NotUsed()
{
return sub_trip_index == std::numeric_limits<unsigned>::max() &&
point_index == std::numeric_limits<unsigned>::max();
}
};
std::vector<TripIndex> input_idx_to_trip_idx(parameters.coordinates.size());
for (auto sub_trip_index : util::irange(0u, static_cast<unsigned>(sub_trips.size())))
{
for (auto point_index :
util::irange(0u, static_cast<unsigned>(sub_trips[sub_trip_index].size())))
{
input_idx_to_trip_idx[sub_trips[sub_trip_index][point_index]] =
TripIndex{sub_trip_index, point_index};
}
}
for (auto input_index : util::irange(0UL, parameters.coordinates.size()))
{
auto trip_index = input_idx_to_trip_idx[input_index];
BOOST_ASSERT(!trip_index.NotUsed());
auto waypoint =
BaseAPI::MakeWaypoint(parameters.coordinates[input_index], phantoms[input_index]);
waypoint.values["trips_index"] = trip_index.sub_trip_index;
waypoint.values["waypoint_index"] = trip_index.point_index;
waypoints.values.push_back(std::move(waypoint));
}
return waypoints;
}
const TripParameters &parameters;
};
} // ns api
} // ns engine
} // ns osrm
#endif