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55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
#pragma once
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#include "IDictionarySource.h"
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#include <Core/Block.h>
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#include <unordered_map>
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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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struct DictionaryStructure;
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/// creates IDictionarySource instance from config and DictionaryStructure
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class DictionarySourceFactory : private boost::noncopyable
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{
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public:
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static DictionarySourceFactory & instance();
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using Creator = std::function<DictionarySourcePtr(
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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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Block & sample_block,
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const Context & context)>;
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DictionarySourceFactory();
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void registerSource(const std::string & source_type, Creator create_source);
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DictionarySourcePtr 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 DictionaryStructure & dict_struct,
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const Context & context) const;
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private:
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using SourceRegistry = std::unordered_map<std::string, Creator>;
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SourceRegistry registered_sources;
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Poco::Logger * log;
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};
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}
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