PatriciaTreeEncoderAdapters.h

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#pragma once
#include "catapult/cache_db/KeySerializers.h"
#include "catapult/crypto/Hashes.h"
 
namespace catapult { namespace cache {
 
    template<typename TSerializer>
    class SerializerPlainKeyEncoder {
    public:
        using KeyType = typename TSerializer::KeyType;
        using ValueType = typename TSerializer::ValueType;
 
    public:
        static constexpr const KeyType& EncodeKey(const KeyType& key) {
            return key;
        }
 
        static Hash256 EncodeValue(const ValueType& value) {
            auto encodedData = TSerializer::SerializeValue(value);
 
            Hash256 valueHash;
            crypto::Sha3_256({ reinterpret_cast<const uint8_t*>(encodedData.data()), encodedData.size() }, valueHash);
            return valueHash;
        }
    };
 
    template<typename TSerializer>
    class SerializerHashedKeyEncoder : public SerializerPlainKeyEncoder<TSerializer> {
    public:
        static Hash256 EncodeKey(const typename SerializerPlainKeyEncoder<TSerializer>::KeyType& key) {
            Hash256 keyHash;
            crypto::Sha3_256(SerializeKey(key), keyHash);
            return keyHash;
        }
    };
}}