transaction_batch_helpers.hpp

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#ifndef IROHA_TRANSACTION_BATCH_HELPERS_HPP
#define IROHA_TRANSACTION_BATCH_HELPERS_HPP

#include <sstream>

#include "cryptography/hash.hpp"

namespace shared_model {
  namespace interface {

    class TransactionBatchHelpers {
     public:
      template <typename Collection>
      static types::HashType calculateReducedBatchHash(
          const Collection &reduced_hashes) {
        std::stringstream concatenated_hash;
        for (const auto &hash : reduced_hashes) {
          concatenated_hash << hash.hex();
        }
        return types::HashType::fromHexString(concatenated_hash.str());
      }
    };
  }  // namespace interface
}  // namespace shared_model

#endif  // IROHA_TRANSACTION_BATCH_HELPERS_HPP