def is_identifier(value: str) -> str:
if not _IDENTIFIER_REGEXP.fullmatch(value):
raise errors.PropertyConstraintViolationError(
"Input is not a valid identifier",
pattern=_IDENTIFIER_REGEXP.pattern,
)
return value
def max_length(length: int, value: typing.Any) -> typing.Any:
"""Validates that an input doesn't exceed a given length."""
actual_length = len(value)
if actual_length > length:
raise errors.PropertyConstraintViolationError(
"Input is too long",
max_length=length,
actual_length=actual_length,
)
return value
def from_json(self, json_value):
try:
enum_instance = self.enum_class(json_value)
except ValueError as exc:
raise errors.PropertyConstraintViolationError(
f"Input '{json_value}' is not a valid entry of enum {self.enum_class.__name__}",
value=json_value,
enum_class=self.enum_class,
) from exc
else:
return enum_instance
def from_json(self, json_value: str) -> datetime.datetime:
try:
dt = dateutil.parser.isoparse(json_value)
except (ValueError, OverflowError) as exc:
raise errors.PropertyConstraintViolationError(
f"Date input isn't formatted appropriately",
value=json_value,
) from exc
else:
# Assume naive datetime are UTC, so that we don't reject charge points who expect to speak UTC by default
if not dt.tzinfo:
dt = dt.replace(tzinfo=pytz.UTC)
if dt.tzinfo.tzname(
dt
) != 'UTC': # type: ignore # mypy doesn't catch that dt.replace call sets tzinfo
raise errors.PropertyConstraintViolationError(
f"Date input must use the UTC timezone, not '{dt.tzinfo}'",
value=dt,
)
return dt
def to_json(self, value: datetime.datetime) -> str:
if not isinstance(value, datetime.datetime):
raise errors.TypeConstraintViolationError(
f"Input '{value}' is not a datetime.datetime instance",
value=value,
)
if not value.tzinfo or value.tzinfo.tzname(value) != 'UTC':
raise errors.PropertyConstraintViolationError(
f"Date input must use the UTC timezone, not '{value.tzinfo}'",
value=value,
)
return value.isoformat()
def is_not_zero(value: typing.Union[int, float]) -> typing.Union[int, float]:
if value == 0:
raise errors.PropertyConstraintViolationError("Input is zero")
return value
def is_positive(value: typing.Union[int, float]) -> typing.Union[int, float]:
if value < 0:
raise errors.PropertyConstraintViolationError("Input is negative")
return value
def decimal_validator(precision: int, value: float) -> float:
components = str(value).split('.')
if len(components[-1]) > precision:
raise errors.PropertyConstraintViolationError(
"Decimal value precision is too big", precision=precision)
return value
