101 lines
4.0 KiB
C++
101 lines
4.0 KiB
C++
#ifndef ENGINE_API_NEAREST_API_HPP
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#define ENGINE_API_NEAREST_API_HPP
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#include "engine/api/base_api.hpp"
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#include "engine/api/nearest_parameters.hpp"
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#include "engine/api/json_factory.hpp"
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#include "engine/phantom_node.hpp"
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#include <boost/assert.hpp>
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#include <vector>
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namespace osrm
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{
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namespace engine
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{
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namespace api
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{
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class NearestAPI final : public BaseAPI
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{
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public:
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NearestAPI(const datafacade::BaseDataFacade &facade_, const NearestParameters ¶meters_)
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: BaseAPI(facade_, parameters_), parameters(parameters_)
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{
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}
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void MakeResponse(const std::vector<std::vector<PhantomNodeWithDistance>> &phantom_nodes,
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util::json::Object &response) const
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{
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BOOST_ASSERT(phantom_nodes.size() == 1);
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BOOST_ASSERT(parameters.coordinates.size() == 1);
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util::json::Array waypoints;
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waypoints.values.resize(phantom_nodes.front().size());
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std::transform(phantom_nodes.front().begin(),
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phantom_nodes.front().end(),
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waypoints.values.begin(),
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[this](const PhantomNodeWithDistance &phantom_with_distance) {
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auto &phantom_node = phantom_with_distance.phantom_node;
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auto waypoint = MakeWaypoint(phantom_node);
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waypoint.values["distance"] = phantom_with_distance.distance;
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util::json::Array nodes;
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std::uint64_t from_node = 0;
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std::uint64_t to_node = 0;
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std::vector<NodeID> forward_geometry;
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if (phantom_node.forward_segment_id.enabled )
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{
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auto segment_id = phantom_node.forward_segment_id.id;
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const auto geometry_id = facade.GetGeometryIndex(segment_id).id;
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forward_geometry =
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facade.GetUncompressedForwardGeometry(geometry_id);
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auto osm_node_id = facade.GetOSMNodeIDOfNode(
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forward_geometry[phantom_node.fwd_segment_position]);
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to_node = static_cast<std::uint64_t>(osm_node_id);
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}
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if (phantom_node.reverse_segment_id.enabled)
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{
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auto segment_id = phantom_node.reverse_segment_id.id;
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const auto geometry_id = facade.GetGeometryIndex(segment_id).id;
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std::vector<NodeID> geometry =
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facade.GetUncompressedForwardGeometry(geometry_id);
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auto osm_node_id = facade.GetOSMNodeIDOfNode(
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geometry[phantom_node.fwd_segment_position + 1]);
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from_node = static_cast<std::uint64_t>(osm_node_id);
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}
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else if (phantom_node.forward_segment_id.enabled && phantom_node.fwd_segment_position > 0)
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{
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// In the case of one way, rely on forward segment only
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auto osm_node_id = facade.GetOSMNodeIDOfNode(
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forward_geometry[phantom_node.fwd_segment_position - 1]);
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from_node = static_cast<std::uint64_t>(osm_node_id);
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}
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nodes.values.push_back(from_node);
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nodes.values.push_back(to_node);
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waypoint.values["nodes"] = std::move(nodes);
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return waypoint;
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});
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response.values["code"] = "Ok";
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response.values["waypoints"] = std::move(waypoints);
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}
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const NearestParameters ¶meters;
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};
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} // ns api
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} // ns engine
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} // ns osrm
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#endif
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