HandlerUtils.h

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#pragma once
#include "HandlerTypes.h"
#include "catapult/ionet/PacketEntityUtils.h"
#include "catapult/model/TransactionPlugin.h"
#include "catapult/utils/Logging.h"
#include <functional>
 
namespace catapult { namespace handlers {
 
    template<typename TEntity>
    auto CreatePushEntityHandler(const model::TransactionRegistry& registry, const RangeHandler<TEntity>& rangeHandler) {
        return [rangeHandler, &registry](const ionet::Packet& packet, const auto& context) {
            auto range = ionet::ExtractEntitiesFromPacket<TEntity>(packet, [&registry](const auto& entity) {
                return IsSizeValid(entity, registry);
            });
            if (range.empty()) {
                CATAPULT_LOG(warning) << "rejecting empty range: " << packet;
                return;
            }
 
            CATAPULT_LOG(trace) << "received valid " << packet;
            rangeHandler({ std::move(range), context.key() });
        };
    }
}}