oslo.utils/oslo_utils/uuidutils.py
lvdongbing 0e99039d42 Add toggle 'dashed' to 'generate_uuid' function
Enable 'generate_uuid' function to generate uuid with dashes or not,
because some projects use uuid with dashes while some others not.

Change-Id: I6f213ea47de5713a79b5e0dccf486a7bba88f853
2016-12-06 02:38:08 -05:00

59 lines
1.5 KiB
Python

# Copyright (c) 2012 Intel Corporation.
# All Rights Reserved.
#
# 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.
"""
UUID related utilities and helper functions.
.. versionadded:: 1.1
"""
import uuid
def generate_uuid(dashed=True):
"""Creates a random uuid string.
:param dashed: Generate uuid with dashes or not
:type dashed: bool
:returns: string
"""
if dashed:
return str(uuid.uuid4())
return uuid.uuid4().hex
def _format_uuid_string(string):
return (string.replace('urn:', '')
.replace('uuid:', '')
.strip('{}')
.replace('-', '')
.lower())
def is_uuid_like(val):
"""Returns validation of a value as a UUID.
:param val: Value to verify
:type val: string
:returns: bool
.. versionchanged:: 1.1.1
Support non-lowercase UUIDs.
"""
try:
return str(uuid.UUID(val)).replace('-', '') == _format_uuid_string(val)
except (TypeError, ValueError, AttributeError):
return False