115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
#include "engine/plugins/viaroute.hpp"
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#include "engine/datafacade/datafacade_base.hpp"
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#include "engine/api/route_api.hpp"
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#include "engine/status.hpp"
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#include "util/for_each_pair.hpp"
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#include "util/integer_range.hpp"
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#include "util/json_container.hpp"
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#include <cstdlib>
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#include <algorithm>
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#include <memory>
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#include <string>
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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 plugins
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{
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ViaRoutePlugin::ViaRoutePlugin(datafacade::BaseDataFacade &facade_, int max_locations_viaroute)
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: BasePlugin(facade_), shortest_path(&facade_, heaps), alternative_path(&facade_, heaps),
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direct_shortest_path(&facade_, heaps), max_locations_viaroute(max_locations_viaroute)
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{
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}
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Status ViaRoutePlugin::HandleRequest(const api::RouteParameters &route_parameters,
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util::json::Object &json_result)
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{
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if (max_locations_viaroute > 0 &&
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(static_cast<int>(route_parameters.coordinates.size()) > max_locations_viaroute))
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{
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return Error("TooBig",
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"Number of entries " + std::to_string(route_parameters.coordinates.size()) +
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" is higher than current maximum (" +
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std::to_string(max_locations_viaroute) + ")",
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json_result);
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}
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if (!CheckAllCoordinates(route_parameters.coordinates))
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{
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return Error("InvalidValue", "Invalid coordinate value.", json_result);
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}
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auto phantom_node_pairs = GetPhantomNodes(route_parameters);
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if (phantom_node_pairs.size() != route_parameters.coordinates.size())
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{
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return Error("NoSegment",
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std::string("Could not find a matching segment for coordinate ") +
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std::to_string(phantom_node_pairs.size()),
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json_result);
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}
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BOOST_ASSERT(phantom_node_pairs.size() == route_parameters.coordinates.size());
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auto snapped_phantoms = SnapPhantomNodes(phantom_node_pairs);
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InternalRouteResult raw_route;
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auto build_phantom_pairs = [&raw_route](const PhantomNode &first_node,
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const PhantomNode &second_node)
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{
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raw_route.segment_end_coordinates.push_back(PhantomNodes{first_node, second_node});
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};
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util::for_each_pair(snapped_phantoms, build_phantom_pairs);
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if (1 == raw_route.segment_end_coordinates.size())
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{
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if (route_parameters.alternatives && facade.GetCoreSize() == 0)
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{
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alternative_path(raw_route.segment_end_coordinates.front(), raw_route);
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}
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else
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{
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direct_shortest_path(raw_route.segment_end_coordinates, raw_route);
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}
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}
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else
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{
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shortest_path(raw_route.segment_end_coordinates, route_parameters.uturns, raw_route);
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}
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// we can only know this after the fact, different SCC ids still
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// allow for connection in one direction.
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if (raw_route.is_valid())
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{
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api::RouteAPI route_api{BasePlugin::facade, route_parameters};
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route_api.MakeResponse(raw_route, json_result);
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}
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else
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{
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auto first_component_id = snapped_phantoms.front().component.id;
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auto not_in_same_component = std::any_of(snapped_phantoms.begin(), snapped_phantoms.end(),
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[first_component_id](const PhantomNode &node)
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{
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return node.component.id != first_component_id;
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});
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if (not_in_same_component)
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{
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return Error("NoRoute", "Impossible route between points", json_result);
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}
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else
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{
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return Error("NoRoute", "No route found between points", json_result);
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}
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}
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return Status::Ok;
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}
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}
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}
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}
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