def get_spec_version(spec):
if not isinstance(spec, dict):
msg = _('The provided spec is not a map.')
raise exception.SpecValidationFailed(message=msg)
if 'type' not in spec:
msg = _("The 'type' key is missing from the provided spec map.")
raise exception.SpecValidationFailed(message=msg)
if 'version' not in spec:
msg = _("The 'version' key is missing from the provided spec map.")
raise exception.SpecValidationFailed(message=msg)
return (spec['type'], spec['version'])
def validate(self):
'''Validate the schema.'''
for (k, s) in self._schema.items():
try:
# validate through resolve
self.resolve_value(k)
except (TypeError, ValueError) as err:
msg = _('Spec validation error (%(key)s): %(err)s') % dict(
key=k, err=six.text_type(err))
raise exception.SpecValidationFailed(message=msg)
for key in self._data:
if key not in self._schema:
msg = _('Unrecognizable spec item "%s"') % key
raise exception.SpecValidationFailed(message=msg)
def resolve(self, value):
try:
return int(value)
except (TypeError, ValueError):
msg = _('The value "%s" cannot be converted into an '
'integer.') % value
raise exception.SpecValidationFailed(message=msg)
def validate(self, value, context=None):
if not isinstance(value, six.string_types):
msg = _('The value "%s" cannot be converted into a '
'string.') % value
raise exception.SpecValidationFailed(message=msg)
self.resolve(value)
self.validate_constraints(value, self, context)
def validate_constraints(self, value, context=None, skipped=None):
if not skipped:
skipped = []
try:
for constraint in self.constraints:
if type(constraint) not in skipped:
constraint.validate(value, context)
except ValueError as ex:
raise exception.SpecValidationFailed(message=six.text_type(ex))
def resolve(self, value):
if str(value).lower() not in ('true', 'false'):
msg = _('The value "%s" is not a valid Boolean') % value
raise exception.SpecValidationFailed(message=msg)
return strutils.bool_from_string(value, strict=True)