FunctionalNotificationValidator.h

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#pragma once
#include "NotificationValidator.h"
#include <functional>
 
namespace catapult { namespace validators {
 
    template<typename TNotification, typename... TArgs>
    class FunctionalNotificationValidatorT : public NotificationValidatorT<TNotification, TArgs...> {
    private:
        using FunctionType = std::function<ValidationResult (const TNotification&, TArgs&&...)>;
 
    public:
        explicit FunctionalNotificationValidatorT(const std::string& name, const FunctionType& func)
                : m_name(name)
                , m_func(func)
        {}
 
    public:
        const std::string& name() const override {
            return m_name;
        }
 
        ValidationResult validate(const TNotification& notification, TArgs&&... args) const override {
            return m_func(notification, std::forward<TArgs>(args)...);
        }
 
    private:
        std::string m_name;
        FunctionType m_func;
    };
}}