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https://github.com/ClickHouse/ClickHouse.git
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113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
#include "Settings.h"
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#include <Poco/Util/AbstractConfiguration.h>
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#include <Columns/ColumnArray.h>
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#include <Common/typeid_cast.h>
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#include <string.h>
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#include <boost/program_options/options_description.hpp>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int THERE_IS_NO_PROFILE;
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extern const int NO_ELEMENTS_IN_CONFIG;
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}
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IMPLEMENT_SETTINGS_COLLECTION(Settings, LIST_OF_SETTINGS)
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/** Set the settings from the profile (in the server configuration, many settings can be listed in one profile).
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* The profile can also be set using the `set` functions, like the `profile` setting.
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*/
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void Settings::setProfile(const String & profile_name, const Poco::Util::AbstractConfiguration & config)
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{
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String elem = "profiles." + profile_name;
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if (!config.has(elem))
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throw Exception("There is no profile '" + profile_name + "' in configuration file.", ErrorCodes::THERE_IS_NO_PROFILE);
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Poco::Util::AbstractConfiguration::Keys config_keys;
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config.keys(elem, config_keys);
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for (const std::string & key : config_keys)
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{
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if (key == "constraints")
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continue;
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if (key == "profile") /// Inheritance of one profile from another.
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setProfile(config.getString(elem + "." + key), config);
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else
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set(key, config.getString(elem + "." + key));
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}
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}
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void Settings::loadSettingsFromConfig(const String & path, const Poco::Util::AbstractConfiguration & config)
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{
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if (!config.has(path))
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throw Exception("There is no path '" + path + "' in configuration file.", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
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Poco::Util::AbstractConfiguration::Keys config_keys;
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config.keys(path, config_keys);
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for (const std::string & key : config_keys)
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{
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set(key, config.getString(path + "." + key));
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}
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}
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void Settings::dumpToArrayColumns(IColumn * column_names_, IColumn * column_values_, bool changed_only)
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{
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/// Convert ptr and make simple check
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auto column_names = (column_names_) ? &typeid_cast<ColumnArray &>(*column_names_) : nullptr;
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auto column_values = (column_values_) ? &typeid_cast<ColumnArray &>(*column_values_) : nullptr;
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size_t size = 0;
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for (const auto & setting : *this)
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{
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if (!changed_only || setting.isChanged())
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{
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if (column_names)
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{
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StringRef name = setting.getName();
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column_names->getData().insertData(name.data, name.size);
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}
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if (column_values)
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column_values->getData().insert(setting.getValueAsString());
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++size;
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}
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}
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if (column_names)
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{
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auto & offsets = column_names->getOffsets();
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offsets.push_back(offsets.back() + size);
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}
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/// Nested columns case
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bool the_same_offsets = column_names && column_values && column_names->getOffsetsPtr() == column_values->getOffsetsPtr();
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if (column_values && !the_same_offsets)
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{
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auto & offsets = column_values->getOffsets();
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offsets.push_back(offsets.back() + size);
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}
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}
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void Settings::addProgramOptions(boost::program_options::options_description & options)
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{
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for (size_t index = 0; index != Settings::size(); ++index)
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{
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auto on_program_option
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= boost::function1<void, const std::string &>([this, index](const std::string & value) { set(index, value); });
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options.add(boost::shared_ptr<boost::program_options::option_description>(new boost::program_options::option_description(
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Settings::getName(index).data,
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boost::program_options::value<std::string>()->composing()->notifier(on_program_option),
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Settings::getDescription(index).data)));
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}
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}
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}
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