in server/scripts/cloudstorage/api_utils.py [0:0]
def _check(cls, name, val, can_be_zero=False, val_type=float):
"""Check init arguments.
Args:
name: name of the argument. For logging purpose.
val: value. Value has to be non negative number.
can_be_zero: whether value can be zero.
val_type: Python type of the value.
Returns:
The value.
Raises:
ValueError: when invalid value is passed in.
TypeError: when invalid value type is passed in.
"""
valid_types = [val_type]
if val_type is float:
valid_types.append(int)
if type(val) not in valid_types:
raise TypeError(
'Expect type %s for parameter %s' % (val_type.__name__, name))
if val < 0:
raise ValueError(
'Value for parameter %s has to be greater than 0' % name)
if not can_be_zero and val == 0:
raise ValueError(
'Value for parameter %s can not be 0' % name)
return val