60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
#include "engine/plugins/nearest.hpp"
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#include "engine/api/nearest_api.hpp"
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#include "engine/api/nearest_parameters.hpp"
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#include <string>
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#include <boost/assert.hpp>
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#include <boost/numeric/conversion/cast.hpp>
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namespace osrm::engine::plugins
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{
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NearestPlugin::NearestPlugin(const int max_results_, const boost::optional<double> default_radius_)
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: BasePlugin(default_radius_), max_results{max_results_}
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{
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}
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Status NearestPlugin::HandleRequest(const RoutingAlgorithmsInterface &algorithms,
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const api::NearestParameters ¶ms,
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osrm::engine::api::ResultT &result) const
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{
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BOOST_ASSERT(params.IsValid());
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if (!CheckAlgorithms(params, algorithms, result))
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return Status::Error;
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const auto &facade = algorithms.GetFacade();
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if (max_results > 0 &&
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(boost::numeric_cast<std::int64_t>(params.number_of_results) > max_results))
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{
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return Error("TooBig",
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"Number of results " + std::to_string(params.number_of_results) +
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" is higher than current maximum (" + std::to_string(max_results) + ")",
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result);
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}
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if (!CheckAllCoordinates(params.coordinates))
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return Error("InvalidOptions", "Coordinates are invalid", result);
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if (params.coordinates.size() != 1)
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{
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return Error("InvalidOptions", "Only one input coordinate is supported", result);
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}
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auto phantom_nodes = GetPhantomNodes(facade, params, params.number_of_results);
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if (phantom_nodes.front().size() == 0)
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{
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return Error("NoSegment", "Could not find a matching segments for coordinate", result);
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}
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BOOST_ASSERT(phantom_nodes.front().size() > 0);
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api::NearestAPI nearest_api(facade, params);
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nearest_api.MakeResponse(phantom_nodes, result);
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return Status::Ok;
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}
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} // namespace osrm::engine::plugins
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