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4088c0a7f3
Automated register all functions with below naming convention by iterating through the symbols: void DB::registerXXX(DB::FunctionFactory &)
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
#include <Functions/FunctionFactory.h>
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#include <Functions/geometryConverters.h>
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#include <boost/geometry.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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#include <boost/geometry/geometries/polygon.hpp>
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#include <Common/logger_useful.h>
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#include <Columns/ColumnArray.h>
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#include <Columns/ColumnTuple.h>
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#include <Columns/ColumnConst.h>
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#include <Columns/ColumnsNumber.h>
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#include <DataTypes/DataTypesNumber.h>
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#include <DataTypes/DataTypeArray.h>
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#include <DataTypes/DataTypeTuple.h>
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#include <DataTypes/DataTypeCustomGeo.h>
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#include <memory>
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#include <utility>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int ILLEGAL_TYPE_OF_ARGUMENT;
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}
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template <typename Point>
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class FunctionPolygonsDistance : public IFunction
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{
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public:
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static inline const char * name;
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explicit FunctionPolygonsDistance() = default;
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static FunctionPtr create(ContextPtr)
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{
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return std::make_shared<FunctionPolygonsDistance>();
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}
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String getName() const override
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{
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return name;
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}
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bool isVariadic() const override
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{
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return false;
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}
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size_t getNumberOfArguments() const override
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{
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return 2;
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}
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DataTypePtr getReturnTypeImpl(const DataTypes &) const override
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{
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return std::make_shared<DataTypeFloat64>();
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}
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & /*result_type*/, size_t input_rows_count) const override
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{
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auto res_column = ColumnFloat64::create();
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auto & res_data = res_column->getData();
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res_data.reserve(input_rows_count);
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callOnTwoGeometryDataTypes<Point>(arguments[0].type, arguments[1].type, [&](const auto & left_type, const auto & right_type)
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{
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using LeftConverterType = std::decay_t<decltype(left_type)>;
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using RightConverterType = std::decay_t<decltype(right_type)>;
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using LeftConverter = typename LeftConverterType::Type;
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using RightConverter = typename RightConverterType::Type;
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if constexpr (std::is_same_v<ColumnToPointsConverter<Point>, LeftConverter> || std::is_same_v<ColumnToPointsConverter<Point>, RightConverter>)
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throw Exception(fmt::format("Any argument of function {} must not be Point", getName()), ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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else
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{
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auto first = LeftConverter::convert(arguments[0].column->convertToFullColumnIfConst());
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auto second = RightConverter::convert(arguments[1].column->convertToFullColumnIfConst());
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for (size_t i = 0; i < input_rows_count; ++i)
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{
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boost::geometry::correct(first[i]);
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boost::geometry::correct(second[i]);
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res_data.emplace_back(boost::geometry::distance(first[i], second[i]));
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}
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}
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});
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return res_column;
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}
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bool useDefaultImplementationForConstants() const override
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{
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return true;
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}
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};
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template <>
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const char * FunctionPolygonsDistance<CartesianPoint>::name = "polygonsDistanceCartesian";
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template <>
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const char * FunctionPolygonsDistance<SphericalPoint>::name = "polygonsDistanceSpherical";
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REGISTER_FUNCTION(PolygonsDistance)
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{
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factory.registerFunction<FunctionPolygonsDistance<CartesianPoint>>();
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factory.registerFunction<FunctionPolygonsDistance<SphericalPoint>>();
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}
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}
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