mirror of
https://github.com/ClickHouse/ClickHouse.git
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264 lines
10 KiB
C++
264 lines
10 KiB
C++
#pragma once
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#include <DB/DataTypes/DataTypesNumberFixed.h>
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#include <DB/Columns/ColumnVector.h>
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#include <DB/Interpreters/Context.h>
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#include <DB/Functions/IFunction.h>
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namespace DB
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{
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/** Функции, использующие словари Яндекс.Метрики
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* - словари регионов, операционных систем, поисковых систем.
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*
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* regionToCity, regionToArea, regionToCountry,
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* OSToRoot,
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* SEToRoot,
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*
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* regionIn, SEIn, OSIn.
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*/
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struct RegionToCityImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toCity(x); }
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};
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struct RegionToAreaImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toArea(x); }
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};
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struct RegionToCountryImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toCountry(x); }
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};
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struct OSToRootImpl
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{
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static UInt8 apply(UInt8 x, const TechDataHierarchy & hierarchy) { return hierarchy.OSToMostAncestor(x); }
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};
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struct SEToRootImpl
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{
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static UInt8 apply(UInt8 x, const TechDataHierarchy & hierarchy) { return hierarchy.SEToMostAncestor(x); }
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};
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struct RegionInImpl
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{
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static bool apply(UInt32 x, UInt32 y, const RegionsHierarchy & hierarchy) { return hierarchy.in(x, y); }
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};
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struct OSInImpl
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{
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static bool apply(UInt32 x, UInt32 y, const TechDataHierarchy & hierarchy) { return hierarchy.isOSIn(x, y); }
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};
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struct SEInImpl
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{
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static bool apply(UInt32 x, UInt32 y, const TechDataHierarchy & hierarchy) { return hierarchy.isSEIn(x, y); }
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};
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/// Преобразует идентификатор, используя словарь.
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template <typename T, typename Transform, typename Dict, typename Name>
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class FunctionTransformWithDictionary : public IFunction
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{
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private:
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const SharedPtr<Dict> owned_dict;
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public:
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FunctionTransformWithDictionary(const SharedPtr<Dict> & owned_dict_)
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: owned_dict(owned_dict_)
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{
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if (!owned_dict)
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throw Exception("Dictionaries was not loaded. You need to check configuration file.", ErrorCodes::DICTIONARIES_WAS_NOT_LOADED);
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}
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/// Получить имя функции.
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String getName() const
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{
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return Name::get();
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}
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/// Получить тип результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
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DataTypePtr getReturnType(const DataTypes & arguments) const
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{
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if (arguments.size() != 1)
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throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
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+ Poco::NumberFormatter::format(arguments.size()) + ", should be 1.",
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ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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if (arguments[0]->getName() != TypeName<T>::get())
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throw Exception("Illegal type " + arguments[0]->getName() + " of argument of function " + getName()
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+ " (must be " + TypeName<T>::get() + ")",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return arguments[0];
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}
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/// Выполнить функцию над блоком.
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void execute(Block & block, const ColumnNumbers & arguments, size_t result)
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{
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if (const ColumnVector<T> * col_from = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[0]).column))
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{
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ColumnVector<T> * col_to = new ColumnVector<T>;
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block.getByPosition(result).column = col_to;
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const typename ColumnVector<T>::Container_t & vec_from = col_from->getData();
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typename ColumnVector<T>::Container_t & vec_to = col_to->getData();
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size_t size = vec_from.size();
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vec_to.resize(size);
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const Dict & dict = *owned_dict;
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(vec_from[i], dict);
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}
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else if (const ColumnConst<T> * col_from = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[0]).column))
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{
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block.getByPosition(result).column = new ColumnConst<T>(col_from->size(), Transform::apply(col_from->getData(), *owned_dict));
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}
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else
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throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
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+ " of first argument of function " + Name::get(),
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ErrorCodes::ILLEGAL_COLUMN);
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}
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};
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/// Проверяет принадлежность, используя словарь.
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template <typename T, typename Transform, typename Dict, typename Name>
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class FunctionIsInWithDictionary : public IFunction
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{
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private:
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const SharedPtr<Dict> owned_dict;
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public:
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FunctionIsInWithDictionary(const SharedPtr<Dict> & owned_dict_)
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: owned_dict(owned_dict_)
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{
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if (!owned_dict)
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throw Exception("Dictionaries was not loaded. You need to check configuration file.", ErrorCodes::DICTIONARIES_WAS_NOT_LOADED);
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}
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/// Получить имя функции.
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String getName() const
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{
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return Name::get();
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}
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/// Получить тип результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
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DataTypePtr getReturnType(const DataTypes & arguments) const
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{
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if (arguments.size() != 2)
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throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
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+ Poco::NumberFormatter::format(arguments.size()) + ", should be 1.",
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ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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if (arguments[0]->getName() != TypeName<T>::get())
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throw Exception("Illegal type " + arguments[0]->getName() + " of first argument of function " + getName()
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+ " (must be " + TypeName<T>::get() + ")",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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if (arguments[1]->getName() != TypeName<T>::get())
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throw Exception("Illegal type " + arguments[1]->getName() + " of second argument of function " + getName()
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+ " (must be " + TypeName<T>::get() + ")",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return new DataTypeUInt8;
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}
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/// Выполнить функцию над блоком.
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void execute(Block & block, const ColumnNumbers & arguments, size_t result)
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{
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const ColumnVector<T> * col_vec1 = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[0]).column);
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const ColumnVector<T> * col_vec2 = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[1]).column);
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const ColumnConst<T> * col_const1 = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[0]).column);
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const ColumnConst<T> * col_const2 = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[1]).column);
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if (col_vec1 && col_vec2)
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{
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ColumnVector<UInt8> * col_to = new ColumnVector<UInt8>;
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block.getByPosition(result).column = col_to;
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const typename ColumnVector<T>::Container_t & vec_from1 = col_vec1->getData();
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const typename ColumnVector<T>::Container_t & vec_from2 = col_vec2->getData();
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typename ColumnVector<UInt8>::Container_t & vec_to = col_to->getData();
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size_t size = vec_from1.size();
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vec_to.resize(size);
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const Dict & dict = *owned_dict;
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(vec_from1[i], vec_from2[i], dict);
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}
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else if (col_vec1 && col_const2)
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{
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ColumnVector<UInt8> * col_to = new ColumnVector<UInt8>;
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block.getByPosition(result).column = col_to;
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const typename ColumnVector<T>::Container_t & vec_from1 = col_vec1->getData();
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const T const_from2 = col_const2->getData();
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typename ColumnVector<UInt8>::Container_t & vec_to = col_to->getData();
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size_t size = vec_from1.size();
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vec_to.resize(size);
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const Dict & dict = *owned_dict;
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(vec_from1[i], const_from2, dict);
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}
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else if (col_const1 && col_vec2)
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{
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ColumnVector<UInt8> * col_to = new ColumnVector<UInt8>;
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block.getByPosition(result).column = col_to;
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const T const_from1 = col_const1->getData();
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const typename ColumnVector<T>::Container_t & vec_from2 = col_vec2->getData();
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typename ColumnVector<UInt8>::Container_t & vec_to = col_to->getData();
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size_t size = vec_from2.size();
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vec_to.resize(size);
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const Dict & dict = *owned_dict;
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(const_from1, vec_from2[i], dict);
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}
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else if (col_const1 && col_const2)
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{
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block.getByPosition(result).column = new ColumnConst<T>(col_const1->size(),
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Transform::apply(col_const1->getData(), col_const2->getData(), *owned_dict));
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}
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else
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throw Exception("Illegal columns " + block.getByPosition(arguments[0]).column->getName()
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+ " and " + block.getByPosition(arguments[1]).column->getName()
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+ " of arguments of function " + Name::get(),
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ErrorCodes::ILLEGAL_COLUMN);
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}
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};
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struct NameRegionToCity { static const char * get() { return "regionToCity"; } };
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struct NameRegionToArea { static const char * get() { return "regionToArea"; } };
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struct NameRegionToCountry { static const char * get() { return "regionToCountry"; } };
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struct NameOSToRoot { static const char * get() { return "OSToRoot"; } };
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struct NameSEToRoot { static const char * get() { return "SEToRoot"; } };
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struct NameRegionIn { static const char * get() { return "regionIn"; } };
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struct NameOSIn { static const char * get() { return "OSIn"; } };
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struct NameSEIn { static const char * get() { return "SEIn"; } };
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typedef FunctionTransformWithDictionary<UInt32, RegionToCityImpl, RegionsHierarchy, NameRegionToCity> FunctionRegionToCity;
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typedef FunctionTransformWithDictionary<UInt32, RegionToAreaImpl, RegionsHierarchy, NameRegionToArea> FunctionRegionToArea;
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typedef FunctionTransformWithDictionary<UInt32, RegionToCountryImpl, RegionsHierarchy, NameRegionToCountry> FunctionRegionToCountry;
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typedef FunctionTransformWithDictionary<UInt8, OSToRootImpl, TechDataHierarchy, NameOSToRoot> FunctionOSToRoot;
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typedef FunctionTransformWithDictionary<UInt8, SEToRootImpl, TechDataHierarchy, NameSEToRoot> FunctionSEToRoot;
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typedef FunctionIsInWithDictionary<UInt32, RegionInImpl, RegionsHierarchy, NameRegionIn> FunctionRegionIn;
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typedef FunctionIsInWithDictionary<UInt8, OSInImpl, TechDataHierarchy, NameOSIn> FunctionOSIn;
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typedef FunctionIsInWithDictionary<UInt8, SEInImpl, TechDataHierarchy, NameSEIn> FunctionSEIn;
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}
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