nova/nova/compute/__init__.py

51 lines
1.9 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.
import oslo.config.cfg
# Importing full names to not pollute the namespace and cause possible
# collisions with use of 'from nova.compute import <foo>' elsewhere.
import nova.openstack.common.importutils
_compute_opts = [
oslo.config.cfg.StrOpt('compute_api_class',
default='nova.compute.api.API',
help='The full class name of the '
'compute API class to use'),
]
oslo.config.cfg.CONF.register_opts(_compute_opts)
def API(*args, **kwargs):
importutils = nova.openstack.common.importutils
class_name = oslo.config.cfg.CONF.compute_api_class
return importutils.import_object(class_name, *args, **kwargs)
def HostAPI(*args, **kwargs):
"""
Returns the 'HostAPI' class from the same module as the configured compute
api
"""
importutils = nova.openstack.common.importutils
compute_api_class_name = oslo.config.cfg.CONF.compute_api_class
compute_api_class = importutils.import_class(compute_api_class_name)
class_name = compute_api_class.__module__ + ".HostAPI"
return importutils.import_object(class_name, *args, **kwargs)