ClickHouse/dbms/Core/Settings.cpp
Ivan 97f2a2213e
Move all folders inside /dbms one level up (#9974)
* Move some code outside dbms/src folder
* Fix paths
2020-04-02 02:51:21 +03:00

113 lines
3.7 KiB
C++

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