ConfigurationInterface.h

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#ifndef O2_CONFIGURATION_CONFIGURATIONINTERFACE_H_
#define O2_CONFIGURATION_CONFIGURATIONINTERFACE_H_

#include <string>
#include <unordered_map>
#include <boost/optional.hpp>
#include <boost/property_tree/ptree.hpp>

namespace o2
{
namespace configuration
{

using KeyValueMap = std::unordered_map<std::string, std::string>;

class ConfigurationInterface
{
  public:
    virtual ~ConfigurationInterface();

    virtual void putString(const std::string& path, const std::string& value) = 0;

    virtual boost::optional<std::string> getString(const std::string& path) = 0;

    template<typename T>
    void put(const std::string& path, const T& value);

    virtual void putRecursive(const std::string& path, const boost::property_tree::ptree& tree);

    template<typename T>
    T get(const std::string& path);

    template<typename T>
    T get(const std::string& path, const T& defaultValue);

    virtual void setPrefix(const std::string& prefix) = 0;

    virtual KeyValueMap getRecursiveMap(const std::string& path = {}) = 0;

    virtual boost::property_tree::ptree getRecursive(const std::string& path = {}) = 0;
};

} // namespace configuration
} // namespace o2

#endif /* O2_CONFIGURATION_CONFIGURATIONINTERFACE_H_ */