def validate_scalar_unit(self):
regex = re.compile('([0-9.]+)\s*(\w+)')
try:
result = regex.match(str(self.value)).groups()
validateutils.str_to_num(result[0])
except Exception:
raise ValueError(_('"%s" is not a valid scalar-unit')
% self.value)
if result[1].upper() in self.SCALAR_UNIT_DICT.keys():
return self.value
raise ValueError(_('"%s" is not a valid scalar-unit') % self.value)
def get_num_from_scalar_unit(self, unit=None):
if unit:
if unit.upper() not in self.SCALAR_UNIT_DICT.keys():
raise ValueError(_('input unit "%s" is not a valid unit')
% unit)
else:
unit = self.SCALAR_UNIT_DEFAULT
self.validate_scalar_unit()
regex = re.compile('([0-9.]+)\s*(\w+)')
result = regex.match(str(self.value)).groups()
converted = (float(validateutils.str_to_num(result[0]))
* self.SCALAR_UNIT_DICT[result[1].upper()]
/ self.SCALAR_UNIT_DICT[unit.upper()])
if converted - int(converted) < 0.0000000000001:
converted = int(converted)
return converted
