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67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
#pragma once
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#include "IDictionary.h"
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#include "registerDictionaries.h"
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#include <Parsers/ASTCreateQuery.h>
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namespace Poco
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{
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namespace Util
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{
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class AbstractConfiguration;
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}
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class Logger;
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}
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namespace DB
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{
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class Context;
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/** Create dictionary according to its layout.
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*/
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class DictionaryFactory : private boost::noncopyable
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{
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public:
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static DictionaryFactory & instance();
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/// Create dictionary from AbstractConfiguration parsed
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/// from xml-file on filesystem.
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DictionaryPtr create(
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const std::string & name,
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const Poco::Util::AbstractConfiguration & config,
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const std::string & config_prefix,
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const Context & context,
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bool check_source_config = false) const;
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/// Create dictionary from DDL-query
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DictionaryPtr create(const std::string & name,
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const ASTCreateQuery & ast,
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const Context & context) const;
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using Creator = std::function<DictionaryPtr(
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const std::string & name,
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const DictionaryStructure & dict_struct,
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const Poco::Util::AbstractConfiguration & config,
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const std::string & config_prefix,
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DictionarySourcePtr source_ptr)>;
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bool isComplex(const std::string & layout_type) const;
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void registerLayout(const std::string & layout_type, Creator create_layout, bool is_complex);
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private:
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using LayoutRegistry = std::unordered_map<std::string, Creator>;
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LayoutRegistry registered_layouts;
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using LayoutComplexity = std::unordered_map<std::string, bool>;
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LayoutComplexity layout_complexity;
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};
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}
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