/
fields.py
177 lines (124 loc) · 4.64 KB
/
fields.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
# Copyright 2013 IBM Corp.
#
# 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.
"""Utility methods for objects"""
import ast
from oslo_serialization import jsonutils
from oslo_versionedobjects import fields
BaseEnumField = fields.BaseEnumField
BooleanField = fields.BooleanField
DateTimeField = fields.DateTimeField
Enum = fields.Enum
FloatField = fields.FloatField
IntegerField = fields.IntegerField
ListOfStringsField = fields.ListOfStringsField
NonNegativeFloatField = fields.NonNegativeFloatField
NonNegativeIntegerField = fields.NonNegativeIntegerField
ObjectField = fields.ObjectField
StringField = fields.StringField
UnspecifiedDefault = fields.UnspecifiedDefault
class UUIDField(fields.UUIDField):
def coerce(self, obj, attr, value):
if value is None or value == "":
return self._null(obj, attr)
else:
return self._type.coerce(obj, attr, value)
class Numeric(fields.FieldType):
@staticmethod
def coerce(obj, attr, value):
if value is None:
return value
f_value = float(value)
return f_value if not f_value.is_integer() else value
class NumericField(fields.AutoTypedField):
AUTO_TYPE = Numeric()
class DictField(fields.AutoTypedField):
AUTO_TYPE = fields.Dict(fields.FieldType())
class ListOfUUIDsField(fields.AutoTypedField):
AUTO_TYPE = fields.List(fields.UUID())
class FlexibleDict(fields.FieldType):
@staticmethod
def coerce(obj, attr, value):
if isinstance(value, str):
value = ast.literal_eval(value)
return dict(value)
class FlexibleDictField(fields.AutoTypedField):
AUTO_TYPE = FlexibleDict()
# TODO(lucasagomes): In our code we've always translated None to {},
# this method makes this field to work like this. But probably won't
# be accepted as-is in the oslo_versionedobjects library
def _null(self, obj, attr):
if self.nullable:
return {}
super(FlexibleDictField, self)._null(obj, attr)
class FlexibleListOfDict(fields.FieldType):
@staticmethod
def coerce(obj, attr, value):
if isinstance(value, str):
value = ast.literal_eval(value)
return list(value)
class FlexibleListOfDictField(fields.AutoTypedField):
AUTO_TYPE = FlexibleListOfDict()
# TODO(lucasagomes): In our code we've always translated None to {},
# this method makes this field to work like this. But probably won't
# be accepted as-is in the oslo_versionedobjects library
def _null(self, obj, attr):
if self.nullable:
return []
super(FlexibleListOfDictField, self)._null(obj, attr)
class Json(fields.FieldType):
def coerce(self, obj, attr, value):
if isinstance(value, str):
loaded = jsonutils.loads(value)
return loaded
return value
def from_primitive(self, obj, attr, value):
return self.coerce(obj, attr, value)
def to_primitive(self, obj, attr, value):
return jsonutils.dumps(value)
class JsonField(fields.AutoTypedField):
AUTO_TYPE = Json()
# ### Notification fields ### #
class BaseWatcherEnum(Enum):
ALL = ()
def __init__(self, **kwargs):
super(BaseWatcherEnum, self).__init__(valid_values=self.__class__.ALL)
class NotificationPriority(BaseWatcherEnum):
DEBUG = 'debug'
INFO = 'info'
WARNING = 'warning'
ERROR = 'error'
CRITICAL = 'critical'
ALL = (DEBUG, INFO, WARNING, ERROR, CRITICAL)
class NotificationPhase(BaseWatcherEnum):
START = 'start'
END = 'end'
ERROR = 'error'
ALL = (START, END, ERROR)
class NotificationAction(BaseWatcherEnum):
CREATE = 'create'
UPDATE = 'update'
EXCEPTION = 'exception'
DELETE = 'delete'
STRATEGY = 'strategy'
PLANNER = 'planner'
EXECUTION = 'execution'
CANCEL = 'cancel'
ALL = (CREATE, UPDATE, EXCEPTION, DELETE, STRATEGY, PLANNER, EXECUTION,
CANCEL)
class NotificationPriorityField(BaseEnumField):
AUTO_TYPE = NotificationPriority()
class NotificationPhaseField(BaseEnumField):
AUTO_TYPE = NotificationPhase()
class NotificationActionField(BaseEnumField):
AUTO_TYPE = NotificationAction()