109 lines
3.1 KiB
Python
109 lines
3.1 KiB
Python
# Copyright 2016 Huawei Technologies Co.,LTD.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import ast
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import hashlib
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import inspect
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import six
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from oslo_versionedobjects import fields as object_fields
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from nimble.common import utils
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class IntegerField(object_fields.IntegerField):
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pass
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class UUIDField(object_fields.UUIDField):
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pass
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class StringField(object_fields.StringField):
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pass
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class StringAcceptsCallable(object_fields.String):
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@staticmethod
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def coerce(obj, attr, value):
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if callable(value):
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value = value()
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return super(StringAcceptsCallable, StringAcceptsCallable).coerce(
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obj, attr, value)
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class StringFieldThatAcceptsCallable(object_fields.StringField):
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"""Custom StringField object that allows for functions as default
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In some cases we need to allow for dynamic defaults based on configuration
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options, this StringField object allows for a function to be passed as a
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default, and will only process it at the point the field is coerced
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"""
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AUTO_TYPE = StringAcceptsCallable()
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def __repr__(self):
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default = self._default
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if (self._default != object_fields.UnspecifiedDefault and
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callable(self._default)):
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default = "%s-%s" % (
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self._default.__name__,
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hashlib.md5(inspect.getsource(
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self._default).encode()).hexdigest())
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return '%s(default=%s,nullable=%s)' % (self._type.__class__.__name__,
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default, self._nullable)
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class DateTimeField(object_fields.DateTimeField):
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pass
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class BooleanField(object_fields.BooleanField):
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pass
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class ListOfStringsField(object_fields.ListOfStringsField):
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pass
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class FlexibleDict(object_fields.FieldType):
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@staticmethod
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def coerce(obj, attr, value):
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if isinstance(value, six.string_types):
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value = ast.literal_eval(value)
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return dict(value)
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class FlexibleDictField(object_fields.AutoTypedField):
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AUTO_TYPE = FlexibleDict()
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# TODO(lucasagomes): In our code we've always translated None to {},
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# this method makes this field to work like this. But probably won't
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# be accepted as-is in the oslo_versionedobjects library
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def _null(self, obj, attr):
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if self.nullable:
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return {}
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super(FlexibleDictField, self)._null(obj, attr)
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class MACAddress(object_fields.FieldType):
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@staticmethod
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def coerce(obj, attr, value):
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return utils.validate_and_normalize_mac(value)
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class MACAddressField(object_fields.AutoTypedField):
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AUTO_TYPE = MACAddress()
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