neutron-lbaas/neutron/plugins/hyperv/agent/utilsfactory.py

67 lines
2.1 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 Cloudbase Solutions SRL
# 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.
# @author: Claudiu Belu, Cloudbase Solutions Srl
import sys
from oslo.config import cfg
from neutron.openstack.common import log as logging
from neutron.plugins.hyperv.agent import utils
from neutron.plugins.hyperv.agent import utilsv2
# Check needed for unit testing on Unix
if sys.platform == 'win32':
import wmi
hyper_opts = [
cfg.BoolOpt('force_hyperv_utils_v1',
default=False,
help=_('Force V1 WMI utility classes')),
]
CONF = cfg.CONF
CONF.register_opts(hyper_opts, 'hyperv')
LOG = logging.getLogger(__name__)
def _get_windows_version():
return wmi.WMI(moniker='//./root/cimv2').Win32_OperatingSystem()[0].Version
def _check_min_windows_version(major, minor, build=0):
version_str = _get_windows_version()
return map(int, version_str.split('.')) >= [major, minor, build]
def _get_class(v1_class, v2_class, force_v1_flag):
# V2 classes are supported starting from Hyper-V Server 2012 and
# Windows Server 2012 (kernel version 6.2)
if not force_v1_flag and _check_min_windows_version(6, 2):
cls = v2_class
else:
cls = v1_class
LOG.debug(_("Loading class: %(module_name)s.%(class_name)s"),
{'module_name': cls.__module__, 'class_name': cls.__name__})
return cls
def get_hypervutils():
return _get_class(utils.HyperVUtils, utilsv2.HyperVUtilsV2,
CONF.hyperv.force_hyperv_utils_v1)()