heat/heat/objects/fields.py
Hervé Beraud 9bc5c23885 Remove six and python 2.7 full support
Six is in use to help us to keep support for python 2.7.
Since the ussuri cycle we decide to remove the python 2.7
support so we can go ahead and also remove six usage from
the python code.

Review process and help
-----------------------
Removing six introduce a lot of changes and an huge amount of modified files
To simplify reviews we decided to split changes into several patches to avoid
painful reviews and avoid mistakes.

To review this patch you can use the six documentation [1] to obtain help and
understand choices.

Additional informations
-----------------------
Changes related to 'six.b(data)' [2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

six.b [2] encode the given datas in latin-1 in python3 so I did the same
things in this patch.

Latin-1 is equal to iso-8859-1 [3].

This encoding is the default encoding [4] of certain descriptive HTTP
headers.

I suggest to keep latin-1 for the moment and to move to another encoding
in a follow-up patch if needed to move to most powerful encoding (utf8).

HTML4 support utf8 charset and utf8 is the default charset for HTML5 [5].

Note that this commit message is autogenerated and not necesserly contains
changes related to 'six.b'

[1] https://six.readthedocs.io/
[2] https://six.readthedocs.io/#six.b
[3] https://docs.python.org/3/library/codecs.html#standard-encodings
[4] https://www.w3schools.com/charsets/ref_html_8859.asp
[5] https://www.w3schools.com/html/html_charset.asp

Patch 14 of a serie of 28 patches

Change-Id: Iccb743056c631f2e0728013942d764cd8b1ecfe0
2020-04-23 14:49:12 +02:00

40 lines
1.2 KiB
Python

# Copyright 2014 Intel 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.
from oslo_serialization import jsonutils as json
from oslo_versionedobjects import fields
class Json(fields.FieldType):
def coerce(self, obj, attr, value):
if isinstance(value, str):
loaded = json.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 json.dumps(value)
class JsonField(fields.AutoTypedField):
AUTO_TYPE = Json()
class ListField(fields.AutoTypedField):
AUTO_TYPE = fields.List(fields.FieldType())