ClickHouse/src/Access/EnabledSettings.h

49 lines
1.7 KiB
C++

#pragma once
#include <Access/SettingsProfileElement.h>
#include <Core/UUID.h>
#include <boost/container/flat_set.hpp>
#include <mutex>
namespace DB
{
struct SettingsProfilesInfo;
/// Watches settings profiles for a specific user and roles.
class EnabledSettings
{
public:
struct Params
{
UUID user_id;
boost::container::flat_set<UUID> enabled_roles;
SettingsProfileElements settings_from_enabled_roles;
SettingsProfileElements settings_from_user;
auto toTuple() const { return std::tie(user_id, enabled_roles, settings_from_enabled_roles, settings_from_user); }
friend bool operator ==(const Params & lhs, const Params & rhs) { return lhs.toTuple() == rhs.toTuple(); }
friend bool operator !=(const Params & lhs, const Params & rhs) { return !(lhs == rhs); }
friend bool operator <(const Params & lhs, const Params & rhs) { return lhs.toTuple() < rhs.toTuple(); }
friend bool operator >(const Params & lhs, const Params & rhs) { return rhs < lhs; }
friend bool operator <=(const Params & lhs, const Params & rhs) { return !(rhs < lhs); }
friend bool operator >=(const Params & lhs, const Params & rhs) { return !(lhs < rhs); }
};
/// Returns the default settings come from settings profiles defined for the user
/// and the roles passed in the constructor.
std::shared_ptr<const SettingsProfilesInfo> getInfo() const;
~EnabledSettings();
private:
friend class SettingsProfilesCache;
EnabledSettings(const Params & params_);
void setInfo(const std::shared_ptr<const SettingsProfilesInfo> & info_);
const Params params;
std::shared_ptr<const SettingsProfilesInfo> info;
mutable std::mutex mutex;
};
}