2019-09-26 11:19:10 +00:00
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#pragma once
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#include <memory>
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2021-03-19 12:47:27 +00:00
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#include <Common/quoteString.h>
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#include <Interpreters/ExternalLoader.h>
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#include <Dictionaries/IDictionary.h>
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2019-09-26 11:19:10 +00:00
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namespace DB
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{
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class Context;
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2019-12-12 16:41:41 +00:00
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class IExternalLoaderConfigRepository;
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2019-09-26 11:19:10 +00:00
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/// Manages user-defined dictionaries.
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class ExternalDictionariesLoader : public ExternalLoader
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{
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public:
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using DictPtr = std::shared_ptr<const IDictionaryBase>;
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/// Dictionaries will be loaded immediately and then will be updated in separate thread, each 'reload_period' seconds.
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2021-03-20 15:02:09 +00:00
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explicit ExternalDictionariesLoader(Context & global_context_);
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2019-09-26 11:19:10 +00:00
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2021-03-20 15:02:09 +00:00
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DictPtr getDictionary(const std::string & dictionary_name, const Context & context) const;
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2021-03-19 12:47:27 +00:00
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2021-03-20 15:02:09 +00:00
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DictPtr tryGetDictionary(const std::string & dictionary_name, const Context & context) const;
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2019-09-26 11:19:10 +00:00
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2021-03-20 15:02:09 +00:00
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void reloadDictionary(const std::string & dictionary_name, const Context & context) const;
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2019-09-26 11:19:10 +00:00
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2021-03-20 15:02:09 +00:00
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DictionaryStructure getDictionaryStructure(const std::string & dictionary_name, const Context & context) const;
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2021-03-18 14:03:22 +00:00
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2020-04-12 20:50:32 +00:00
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static DictionaryStructure getDictionaryStructure(const Poco::Util::AbstractConfiguration & config, const std::string & key_in_config = "dictionary");
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2021-03-20 15:02:09 +00:00
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2020-04-12 20:50:32 +00:00
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static DictionaryStructure getDictionaryStructure(const ObjectConfig & config);
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2020-02-27 09:34:06 +00:00
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static void resetAll();
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2019-09-26 11:19:10 +00:00
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protected:
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LoadablePtr create(const std::string & name, const Poco::Util::AbstractConfiguration & config,
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2019-12-11 11:09:21 +00:00
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const std::string & key_in_config, const std::string & repository_name) const override;
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2019-09-26 11:19:10 +00:00
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2021-03-20 15:02:09 +00:00
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std::string resolveDictionaryName(const std::string & dictionary_name, const std::string & current_database_name) const;
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2021-03-19 12:47:27 +00:00
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/// Try convert qualified dictionary name to persistent UUID
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std::string resolveDictionaryNameFromDatabaseCatalog(const std::string & name) const;
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2019-09-26 11:19:10 +00:00
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friend class StorageSystemDictionaries;
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friend class DatabaseDictionary;
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private:
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2021-03-20 15:02:09 +00:00
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Context & global_context;
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2019-09-26 11:19:10 +00:00
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};
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}
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