config.hpp

#pragma once
 
#include "fly/types/json/json.hpp"
 
#include <shared_mutex>
#include <string>
 
namespace fly::config {
 
class Config
{
protected:
    friend class ConfigManager;
 
    virtual ~Config() = default;
 
    template <typename T>
    T get_value(const std::string &name, T def) const;
 
    void update(const Json &);
 
private:
    mutable std::shared_timed_mutex m_values_mutex;
    Json m_values;
};
 
//==================================================================================================
template <typename T>
T Config::get_value(const std::string &name, T def) const
{
    std::shared_lock<std::shared_timed_mutex> lock(m_values_mutex);
 
    try
    {
        return T(m_values[name]);
    }
    catch (const JsonException &)
    {
    }
 
    return def;
}
 
} // namespace fly::config