fb3b843b66
This patch adds a new static method to drivers to expose their configuration options. This also adds the same call to backup drivers as well as the zone manager drivers. Updated the generate_driver_list to expose the options as well. This patch also orders the driver list alphabetically to make it easier and consistent to find drivers. The driver list is now broken down into supported and unsupported drivers as well. Change-Id: I3e7db26ef3df24a12e3bfa219fe25bfb315335ec
82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
# Copyright 2016 Dell Inc.
|
|
# 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 fnmatch
|
|
import inspect
|
|
import os
|
|
|
|
from cinder import interface
|
|
|
|
|
|
def _ensure_loaded(start_path):
|
|
"""Loads everything in a given path.
|
|
|
|
This will make sure all classes have been loaded and therefore all
|
|
decorators have registered class.
|
|
|
|
:param start_path: The starting path to load.
|
|
"""
|
|
for root, folder, files in os.walk(start_path):
|
|
for phile in fnmatch.filter(files, '*.py'):
|
|
path = os.path.join(root, phile)
|
|
try:
|
|
__import__(
|
|
path.replace('/', '.')[:-3], globals(), locals())
|
|
except Exception:
|
|
# Really don't care here
|
|
pass
|
|
|
|
|
|
def get_volume_drivers():
|
|
"""Get a list of all volume drivers."""
|
|
_ensure_loaded('cinder/volume/drivers')
|
|
return [DriverInfo(x) for x in interface._volume_register]
|
|
|
|
|
|
def get_backup_drivers():
|
|
"""Get a list of all backup drivers."""
|
|
_ensure_loaded('cinder/backup/drivers')
|
|
return [DriverInfo(x) for x in interface._backup_register]
|
|
|
|
|
|
def get_fczm_drivers():
|
|
"""Get a list of all fczm drivers."""
|
|
_ensure_loaded('cinder/zonemanager/drivers')
|
|
return [DriverInfo(x) for x in interface._fczm_register]
|
|
|
|
|
|
class DriverInfo(object):
|
|
"""Information about driver implementations."""
|
|
|
|
def __init__(self, cls):
|
|
self.cls = cls
|
|
self.desc = cls.__doc__
|
|
self.class_name = cls.__name__
|
|
self.class_fqn = '{}.{}'.format(inspect.getmodule(cls).__name__,
|
|
self.class_name)
|
|
self.version = getattr(cls, 'VERSION', None)
|
|
self.ci_wiki_name = getattr(cls, 'CI_WIKI_NAME', None)
|
|
self.supported = getattr(cls, 'SUPPORTED', True)
|
|
self.driver_options = cls.get_driver_options()
|
|
|
|
def __str__(self):
|
|
return self.class_name
|
|
|
|
def __repr__(self):
|
|
return self.class_fqn
|
|
|
|
def __hash__(self):
|
|
return hash(self.class_fqn)
|