osrm-backend/src/engine/plugins/table.cpp
Patrick Niklaus fda8f6ecef Add table API
2016-03-18 17:32:59 +01:00

87 lines
2.4 KiB
C++

#include "engine/plugins/table.hpp"
#include "engine/api/table_parameters.hpp"
#include "engine/api/table_api.hpp"
#include "engine/object_encoder.hpp"
#include "engine/routing_algorithms/many_to_many.hpp"
#include "engine/search_engine_data.hpp"
#include "util/string_util.hpp"
#include "util/json_container.hpp"
#include <cstdlib>
#include <algorithm>
#include <memory>
#include <string>
#include <vector>
namespace osrm
{
namespace engine
{
namespace plugins
{
TablePlugin::TablePlugin(datafacade::BaseDataFacade &facade, const int max_locations_distance_table)
: BasePlugin{facade}, distance_table(&facade, heaps),
max_locations_distance_table(max_locations_distance_table)
{
}
Status TablePlugin::HandleRequest(const api::TableParameters &params, util::json::Object &result)
{
BOOST_ASSERT(params.IsValid());
if (!CheckAllCoordinates(params.coordinates))
{
return Error("invalid-options", "Coordinates are invalid", result);
}
if (params.bearings.size() > 0 && params.coordinates.size() != params.bearings.size())
{
return Error("invalid-options", "Number of bearings does not match number of coordinates",
result);
}
if (max_locations_distance_table > 0 &&
(params.sources.size() * params.destinations.size() >
static_cast<std::size_t>(max_locations_distance_table * max_locations_distance_table)))
{
return Error(
"invalid-options",
"Number of entries " +
std::to_string(params.sources.size() * params.destinations.size()) +
" is higher than current maximum (" +
std::to_string(max_locations_distance_table * max_locations_distance_table) + ")",
result);
}
auto snapped_phantoms = SnapPhantomNodes(GetPhantomNodes(params));
const auto result_table = [&]()
{
if (params.sources.empty())
{
BOOST_ASSERT(params.destinations.empty());
return distance_table(snapped_phantoms);
}
else
{
return distance_table(snapped_phantoms, params.sources, params.destinations);
}
}();
if (result_table.empty())
{
return Error("no-table", "No table found", result);
}
api::TableAPI table_api {facade, params};
table_api.MakeResponse(result_table, snapped_phantoms, result);
return Status::Ok;
}
}
}
}