ClickHouse/dbms/src/Interpreters/ExternalLoaderXMLConfigRepository.h

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#pragma once
#include <Core/Types.h>
#include <unordered_map>
#include <Interpreters/IExternalLoaderConfigRepository.h>
#include <Poco/Timestamp.h>
namespace DB
{
/// XML config repository used by ExternalLoader.
/// Represents xml-files in local filesystem.
class ExternalLoaderXMLConfigRepository : public IExternalLoaderConfigRepository
{
public:
ExternalLoaderXMLConfigRepository(const Poco::Util::AbstractConfiguration & main_config_, const std::string & config_key_)
: main_config(main_config_)
, config_key(config_key_)
{
}
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/// Return set of .xml files from path in main_config (config_key)
std::set<std::string> getAllLoadablesDefinitionNames() const override;
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/// Checks that file with name exists on filesystem
bool exists(const std::string & definition_entity_name) const override;
/// Return xml-file modification time via stat call
Poco::Timestamp getUpdateTime(const std::string & definition_entity_name) override;
/// May contain definition about several entities (several dictionaries in one .xml file)
LoadablesConfigurationPtr load(const std::string & definition_entity_name) const override;
private:
/// Main server config (config.xml).
const Poco::Util::AbstractConfiguration & main_config;
/// Key which contains path to dicrectory with .xml configs for entries
std::string config_key;
};
}