ErrorCode CopyResult()

in lex_common/src/lex_common.cpp [62:103]
34 lines of code
4 McCabe index (conditional complexity)

ErrorCode CopyResult(
  Aws::LexRuntimeService::Model::PostContentResult & result,
  LexResponse & response)
{
  using Aws::LexRuntimeService::Model::MessageFormatTypeMapper::GetNameForMessageFormatType;
  response.message_format_type = GetNameForMessageFormatType(result.GetMessageFormat()).c_str();
  response.text_response = result.GetMessage().c_str();
  
  // Copy audio stream into vector
  std::streampos audio_size = result.GetAudioStream().seekg(0, std::ios_base::end).tellg();
  response.audio_response = std::vector<uint8_t>(audio_size);
  result.GetAudioStream().seekg(0, std::ios_base::beg);
  result.GetAudioStream().read(reinterpret_cast<char *>(&response.audio_response[0]), audio_size);
  
  response.intent_name = result.GetIntentName().c_str();
  using Aws::LexRuntimeService::Model::DialogStateMapper::GetNameForDialogState;
  response.dialog_state = GetNameForDialogState(result.GetDialogState()).c_str();
  std::string session_attributes = result.GetSessionAttributes().c_str();
  
  // Strings are Base64 from lex, decode and store into a slot string
  auto slot_byte_buffer = Aws::Utils::HashingUtils::Base64Decode(result.GetSlots().c_str());
  Aws::String slot_string(reinterpret_cast<char *>(slot_byte_buffer.GetUnderlyingData()),
    slot_byte_buffer.GetLength());
  response.session_attributes = result.GetSessionAttributes().c_str();

  // Parse json into a map of slots
  if (!slot_string.empty()) {
    auto slot_json = Aws::Utils::Json::JsonValue(slot_string);
    if (slot_json.WasParseSuccessful()) {
      AWS_LOGSTREAM_DEBUG(__func__, "slot_json: " << slot_string);

      auto view = slot_json.View();
      for (auto & element : view.GetAllObjects()) {
        response.slots[element.first.c_str()] = element.second.AsString().c_str();
      }
    } else {
      AWS_LOGSTREAM_WARN(__func__, "Unable to parse slot string " << slot_string);
      return INVALID_RESULT;
    }
  }
  return SUCCESS;
}