def _validate_time_index_col(df: DataFrame, entity_id: str,
time_index: str):
def validate_single_row(row: Row):
time_str = row[time_index]
try:
return parser.parse(time_str)
except Exception:
raise ValueError("Cannot parse '{0}' of time index column "
"'{1}' in entity '{2}'! ".format(
time_str,
EntitySpark.recover_col_name(
entity_id, time_index), entity_id))
df.foreach(validate_single_row)
