RETIRED, Function as a Service for OpenStack
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# Copyright 2017 Catalyst IT Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
from oslo_utils import uuidutils
import six
from wsme import types as wtypes
from qinling import exceptions as exc
class ListType(wtypes.UserType):
"""A simple list type."""
basetype = wtypes.text
name = 'list'
@staticmethod
def validate(value):
"""Validate and convert the input to a ListType.
:param value: A comma separated string of values
:returns: A list of values.
"""
items = [v.strip().lower() for v in six.text_type(value).split(',')]
# remove empty items.
return [x for x in items if x]
@staticmethod
def frombasetype(value):
return ListType.validate(value) if value is not None else None
class UniqueListType(ListType):
"""A simple list type with no duplicate items."""
name = 'uniquelist'
@staticmethod
def validate(value):
"""Validate and convert the input to a UniqueListType.
:param value: A comma separated string of values.
:returns: A list with no duplicate items.
"""
items = ListType.validate(value)
seen = set()
return [x for x in items if not (x in seen or seen.add(x))]
@staticmethod
def frombasetype(value):
return UniqueListType.validate(value) if value is not None else None
class UuidType(wtypes.UserType):
"""A simple UUID type.
The builtin UuidType class in wsme.types doesn't work properly with pecan.
"""
basetype = wtypes.text
name = 'uuid'
@staticmethod
def validate(value):
if not uuidutils.is_uuid_like(value):
raise exc.InputException(
"Expected a uuid but received %s." % value
)
return value
@staticmethod
def frombasetype(value):
return UuidType.validate(value) if value is not None else None
class JsonType(wtypes.UserType):
"""A simple JSON type."""
basetype = wtypes.text
name = 'json'
def validate(self, value):
if not value:
return {}
if not isinstance(value, dict):
raise exc.InputException(
'JsonType field value must be a dictionary [actual=%s]' % value
)
return value
def frombasetype(self, value):
if isinstance(value, dict):
return value
try:
return json.loads(value) if value is not None else None
except TypeError as e:
raise ValueError(e)
def tobasetype(self, value):
# Value must be a dict.
return json.dumps(value) if value is not None else None
uuid = UuidType()
list = ListType()
uniquelist = UniqueListType()
jsontype = JsonType()