def _init_acquision_date_time_if_undefined()

in pathology/transformation_pipeline/ingestion_lib/dicom_gen/wsi_to_dicom/dicom_util.py [0:0]

• 33 lines of code
• 10 McCabe index (conditional complexity)

def _init_acquision_date_time_if_undefined(dcm_file: pydicom.Dataset) -> None:
  """Inits acquision date time if undefined (Required for WSI DICOM).

  If tag is undefined attempts to build tag value from date/time components.
    date = AcquisitionDate, ContentDate, and then current date.
    time = AcquisitionTime, ContentTime, and then current time.

    if date metadata does not fully describe metadata in 8 chars (YYYYMMDD)
    then uses current date.

  Args:
    dcm_file: Pydicom dataset.

  Returns:
    None:
  """
  if ingest_const.DICOMTagKeywords.ACQUISITION_DATE_TIME in dcm_file:
    return
  datetime_now = _get_datetime_now()

  acquision_date = ''
  acquision_time = '000000'
  try:
    if len(dcm_file.AcquisitionDate) >= 4:
      acquision_date = dcm_file.AcquisitionDate
      acquision_time = dcm_file.AcquisitionTime
  except AttributeError:
    pass
  if not acquision_date:
    try:
      if len(dcm_file.ContentDate) >= 4:
        acquision_date = dcm_file.ContentDate
        acquision_time = dcm_file.ContentTime
    except AttributeError:
      pass
  if not acquision_date:
    acquision_date = _dicom_formatted_date(datetime_now)
    acquision_time = _dicom_formatted_time(datetime_now)
    cloud_logging_client.info(
        'Metadata missing required acquision datetime metadata setting datetime'
        ' current date/time.'
    )
  if ingest_const.DICOMTagKeywords.ACQUISITION_DATE not in dcm_file:
    dcm_file.AcquisitionDate = acquision_date
  if ingest_const.DICOMTagKeywords.ACQUISITION_TIME not in dcm_file:
    dcm_file.AcquisitionTime = acquision_time
  acquision_date = _pad_date(acquision_date)
  acquision_time = _pad_time(acquision_time)
  dcm_file.AcquisitionDateTime = f'{acquision_date}{acquision_time}'