Grzegorz Grasza 0d4bd24ed3 Rename utils -> _utils
Hide the utils module, which should not be part of the public API.
utils.py contains functions required internally (moved from Nova).

Change-Id: I3666d35d28592bd49768424049142e5d353a916d
Closes-Bug: 1417284
2015-02-16 11:19:31 +01:00

55 lines
1.8 KiB
Python

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 Justin Santa Barbara
# 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.
"""Utilities and helper functions."""
import functools
import logging
import six
from oslo_versionedobjects._i18n import _
from oslo_versionedobjects import exception
LOG = logging.getLogger(__name__)
def convert_version_to_int(version):
try:
if isinstance(version, six.string_types):
version = convert_version_to_tuple(version)
if isinstance(version, tuple):
return functools.reduce(lambda x, y: (x * 1000) + y, version)
except Exception:
msg = _("Hypervisor version %s is invalid.") % version
raise exception.VersionedObjectsException(msg)
def convert_version_to_str(version_int):
version_numbers = []
factor = 1000
while version_int != 0:
version_number = version_int - (version_int // factor * factor)
version_numbers.insert(0, str(version_number))
version_int = version_int // factor
return '.'.join(map(str, version_numbers))
def convert_version_to_tuple(version_str):
return tuple(int(part) for part in version_str.split('.'))