AdaptorInterfaces.h

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#ifndef SDBUS_CXX_ADAPTORINTERFACES_H_
#define SDBUS_CXX_ADAPTORINTERFACES_H_
 
#include <sdbus-c++/IObject.h>
#include <cassert>
#include <string>
#include <memory>
 
// Forward declarations
namespace sdbus {
    class IConnection;
} // namespace sdbus
 
namespace sdbus {
 
    /********************************************/
    class ObjectHolder
    {
    protected:
        explicit ObjectHolder(std::unique_ptr<IObject>&& object)
            : object_(std::move(object))
        {
        }
 
        [[nodiscard]] const IObject& getObject() const
        {
            assert(object_ != nullptr);
            return *object_;
        }
 
        [[nodiscard]] IObject& getObject()
        {
            assert(object_ != nullptr);
            return *object_;
        }
 
    private:
        std::unique_ptr<IObject> object_;
    };
 
    /********************************************/
    template <typename... Interfaces>
    class AdaptorInterfaces
        : protected ObjectHolder
        , public Interfaces...
    {
    public:
        AdaptorInterfaces(const AdaptorInterfaces&) = delete;
        AdaptorInterfaces& operator=(const AdaptorInterfaces&) = delete;
        AdaptorInterfaces(AdaptorInterfaces&&) = delete;
        AdaptorInterfaces& operator=(AdaptorInterfaces&&) = delete;

        AdaptorInterfaces(IConnection& connection, ObjectPath objectPath)
            : ObjectHolder(createObject(connection, std::move(objectPath)))
            , Interfaces(getObject())...
        {
        }

        void registerAdaptor()
        {
            (Interfaces::registerAdaptor(), ...);
        }

        void unregisterAdaptor()
        {
            getObject().unregister();
        }

        using ObjectHolder::getObject;
 
    protected:
        using base_type = AdaptorInterfaces;
 
        ~AdaptorInterfaces() = default;
    };
 
} // namespace sdbus
 
#endif /* SDBUS_CXX_ADAPTORINTERFACES_H_ */