def validate_row(row):
# validate MMSI, message_id and IMO
if not utils.valid_mmsi(row[MMSI]) or not utils.valid_message_id(row[MESSAGE_ID]) or not check_imo(row[IMO]):
raise ValueError("Row invalid")
# check lat long for messages which should contain it
if row[MESSAGE_ID] in CONTAINS_LAT_LON:
if not (utils.valid_longitude(row[LONGITUDE]) and utils.valid_latitude(row[LATITUDE])):
raise ValueError("Row invalid (lat,lon)")
# otherwise set them to None
else:
row[LONGITUDE] = None
row[LATITUDE] = None
# validate other columns
set_null_on_fail(row, NAV_STATUS, utils.valid_navigational_status)
set_null_on_fail(row, SOG, utils.is_valid_sog)
set_null_on_fail(row, COG, utils.is_valid_cog)
set_null_on_fail(row, HEADING, utils.is_valid_heading)
return row
def test_valid_longitude(self):
for angle in np.linspace(-180, 180, 100):
assert valid_longitude(angle) == True
for angle in [-181, 181]:
assert valid_longitude(angle) == False
def test_valid_longitude(self):
for angle in np.linspace(-180, 180, 100):
assert valid_longitude(angle) == True
for angle in [-181, 181]:
assert valid_longitude(angle) == False