sushy-tools/sushy_tools/emulator/resources/volumes.py
Dmitry Tantsur c5b99058b2 Flatten the emulator resources
It doesn't look like we'll get more alternative implementations for
all resources except for systems, nor do we allow loading 3rd party
ones. For the sake of simpler development, flatten the package
structure and get rid of most abstract classes.

Change-Id: I7f84b535520b0be8e8c636d55e109d0402471dc0
2020-08-06 12:52:12 +02:00

74 lines
2.5 KiB
Python

# Copyright 2019 Red Hat, 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 uuid
from sushy_tools.emulator import memoize
from sushy_tools.emulator.resources import base
class StaticDriver(base.DriverBase):
"""Redfish Volumes emulated in libvirt backed by the config file
Maintains the libvirt volumes in memory.
"""
def __init__(self, config, logger):
super().__init__(config, logger)
self._volumes = memoize.PersistentDict()
self._volumes.make_permanent(
self._config.get('SUSHY_EMULATOR_STATE_DIR'), 'volumes')
self._volumes.update(
self._config.get('SUSHY_EMULATOR_VOLUMES', {}))
@property
def driver(self):
"""Return human-friendly driver information
:returns: driver information as `str`
"""
return '<static-volumes>'
def get_volumes_col(self, identity, storage_id):
try:
uu_identity = str(uuid.UUID(identity))
return self._volumes[(uu_identity, storage_id)]
except (KeyError, ValueError):
msg = ('Error finding volume collection by System UUID %s '
'and Storage ID %s' % (uu_identity, storage_id))
self._logger.debug(msg)
def add_volume(self, uu_identity, storage_id, vol):
if not self._volumes[(uu_identity, storage_id)]:
self._volumes[(uu_identity, storage_id)] = []
vol_col = self._volumes[(uu_identity, storage_id)]
vol_col.append(vol)
self._volumes.update({(uu_identity, storage_id): vol_col})
def delete_volume(self, uu_identity, storage_id, vol):
try:
vol_col = self._volumes[(uu_identity, storage_id)]
except KeyError:
msg = ('Error finding volume collection by System UUID %s '
'and Storage ID %s' % (uu_identity, storage_id))
self._logger.debug(msg)
else:
vol_col.remove(vol)
self._volumes.update({(uu_identity, storage_id): vol_col})