def _validate_default(self, context):
if self.default is not None:
default_value = self.default
if self.type == self.LIST and not isinstance(self.default, list):
try:
default_value = self.default.split(',')
except (KeyError, AttributeError) as err:
raise constr.InvalidSchemaError(
_('Default must be a '
'comma-delimited list '
'string: %s') % err)
try:
self.validate_constraints(default_value, context)
except (ValueError, TypeError,
exception.StackValidationFailed) as exc:
raise constr.InvalidSchemaError(
_('Invalid default '
'%(default)s (%(exc)s)') %
dict(default=self.default, exc=exc))
def constraints():
constraints = schema_dict.get(CONSTRAINTS)
if constraints is None:
return
if not isinstance(constraints, list):
raise constr.InvalidSchemaError(
_("Invalid parameter constraints for parameter %s, "
"expected a list") % param_name)
valid_keys = (DESCRIPTION, LENGTH, RANGE, ALLOWED_VALUES,
ALLOWED_PATTERN, CUSTOM_CONSTRAINT)
for constraint in constraints:
cls._check_dict(constraint, valid_keys,
'parameter constraints')
desc = constraint.get(DESCRIPTION)
if RANGE in constraint:
cdef = constraint.get(RANGE)
cls._check_dict(cdef, (MIN, MAX), 'range constraint')
yield constr.Range(parameters.Schema.get_num(MIN, cdef),
parameters.Schema.get_num(MAX, cdef),
desc)
elif LENGTH in constraint:
cdef = constraint.get(LENGTH)
cls._check_dict(cdef, (MIN, MAX), 'length constraint')
yield constr.Length(parameters.Schema.get_num(MIN, cdef),
parameters.Schema.get_num(MAX, cdef),
desc)
elif ALLOWED_VALUES in constraint:
cdef = constraint.get(ALLOWED_VALUES)
yield constr.AllowedValues(cdef, desc)
elif ALLOWED_PATTERN in constraint:
cdef = constraint.get(ALLOWED_PATTERN)
yield constr.AllowedPattern(cdef, desc)
elif CUSTOM_CONSTRAINT in constraint:
cdef = constraint.get(CUSTOM_CONSTRAINT)
yield constr.CustomConstraint(cdef, desc)
else:
raise constr.InvalidSchemaError(
_("No constraint expressed"))
def _validate_dict(cls, schema_dict):
cls._check_dict(schema_dict, cls.PARAMETER_KEYS, "parameter")
if cls.TYPE not in schema_dict:
raise constr.InvalidSchemaError(_("Missing parameter type"))