bool ProvenanceEventRecord::deserialize()

in libminifi/src/provenance/Provenance.cpp [244:440]
177 lines of code
48 McCabe index (conditional complexity)

bool ProvenanceEventRecord::deserialize(io::InputStream &input_stream) {
  {
    const auto ret = input_stream.read(uuid_);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  uint32_t eventType;
  {
    const auto ret = input_stream.read(eventType);
    if (ret != 4) {
      return false;
    }
  }

  this->_eventType = (ProvenanceEventRecord::ProvenanceEventType) eventType;
  {
    uint64_t event_time_in_ms;
    const auto ret = input_stream.read(event_time_in_ms);
    if (ret != 8) {
      return false;
    }
    _eventTime = std::chrono::system_clock::time_point() + std::chrono::milliseconds(event_time_in_ms);
  }

  {
    uint64_t entry_date_in_ms;
    const auto ret = input_stream.read(entry_date_in_ms);
    if (ret != 8) {
      return false;
    }
    _entryDate = std::chrono::system_clock::time_point() + std::chrono::milliseconds(entry_date_in_ms);
  }

  {
    uint64_t event_duration_ms;
    const auto ret = input_stream.read(event_duration_ms);
    if (ret != 8) {
      return false;
    }
    _eventDuration = std::chrono::milliseconds(event_duration_ms);
  }

  {
    uint64_t lineage_start_date_in_ms;
    const auto ret = input_stream.read(lineage_start_date_in_ms);
    if (ret != 8) {
      return false;
    }
    _lineageStartDate = std::chrono::system_clock::time_point() + std::chrono::milliseconds(lineage_start_date_in_ms);
  }

  {
    const auto ret = input_stream.read(this->_componentId);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  {
    const auto ret = input_stream.read(this->_componentType);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  {
    const auto ret = input_stream.read(this->flow_uuid_);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  {
    const auto ret = input_stream.read(this->_details);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  // read flow attributes
  uint32_t numAttributes = 0;
  {
    const auto ret = input_stream.read(numAttributes);
    if (ret != 4) {
      return false;
    }
  }

  for (uint32_t i = 0; i < numAttributes; i++) {
    std::string key;
    {
      const auto ret = input_stream.read(key);
      if (ret == 0 || io::isError(ret)) {
        return false;
      }
    }
    std::string value;
    {
      const auto ret = input_stream.read(value);
      if (ret == 0 || io::isError(ret)) {
        return false;
      }
    }
    this->_attributes[key] = value;
  }

  {
    const auto ret = input_stream.read(this->_contentFullPath);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  {
    const auto ret = input_stream.read(this->_size);
    if (ret != 8) {
      return false;
    }
  }

  {
    const auto ret = input_stream.read(this->_offset);
    if (ret != 8) {
      return false;
    }
  }

  {
    const auto ret = input_stream.read(this->_sourceQueueIdentifier);
    if (ret == 0 || io::isError(ret)) {
      return false;
    }
  }

  if (this->_eventType == ProvenanceEventRecord::FORK || this->_eventType == ProvenanceEventRecord::CLONE || this->_eventType == ProvenanceEventRecord::JOIN) {
    // read UUIDs
    uint32_t number = 0;
    {
      const auto ret = input_stream.read(number);
      if (ret != 4) {
        return false;
      }
    }

    for (uint32_t i = 0; i < number; i++) {
      utils::Identifier parentUUID;
      {
        const auto ret = input_stream.read(parentUUID);
        if (ret == 0 || io::isError(ret)) {
          return false;
        }
      }
      this->addParentUuid(parentUUID);
    }
    number = 0;
    {
      const auto ret = input_stream.read(number);
      if (ret != 4) {
        return false;
      }
    }
    for (uint32_t i = 0; i < number; i++) {
      utils::Identifier childUUID;
      {
        const auto ret = input_stream.read(childUUID);
        if (ret == 0 || io::isError(ret)) {
          return false;
        }
      }
      this->addChildUuid(childUUID);
    }
  } else if (this->_eventType == ProvenanceEventRecord::SEND || this->_eventType == ProvenanceEventRecord::FETCH) {
    {
      const auto ret = input_stream.read(this->_transitUri);
      if (ret == 0 || io::isError(ret)) {
        return false;
      }
    }
  } else if (this->_eventType == ProvenanceEventRecord::RECEIVE) {
    {
      const auto ret = input_stream.read(this->_transitUri);
      if (ret == 0 || io::isError(ret)) {
        return false;
      }
    }
    {
      const auto ret = input_stream.read(this->_sourceSystemFlowFileIdentifier);
      if (ret == 0 || io::isError(ret)) {
        return false;
      }
    }
  }

  return true;
}