cinder/cinder/api/contrib/resource_common_manage.py

63 lines
2.5 KiB
Python

# Copyright (c) 2016 Stratoscale, Ltd.
#
# 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_messaging as messaging
from cinder.api import common
from cinder.api import microversions as mv
from cinder import exception
from cinder.i18n import _
def get_manageable_resources(req, is_detail, function_get_manageable,
view_builder):
context = req.environ['cinder.context']
params = req.params.copy()
cluster_name, host = common.get_cluster_host(
req, params, mv.MANAGE_EXISTING_CLUSTER)
marker, limit, offset = common.get_pagination_params(params)
sort_keys, sort_dirs = common.get_sort_params(params,
default_key='reference')
# These parameters are generally validated at the DB layer, but in this
# case sorting is not done by the DB
valid_sort_keys = ('reference', 'size')
invalid_keys = [key for key in sort_keys if key not in valid_sort_keys]
if invalid_keys:
msg = _("Invalid sort keys passed: %s") % ', '.join(invalid_keys)
raise exception.InvalidParameterValue(err=msg)
valid_sort_dirs = ('asc', 'desc')
invalid_dirs = [d for d in sort_dirs if d not in valid_sort_dirs]
if invalid_dirs:
msg = _("Invalid sort dirs passed: %s") % ', '.join(invalid_dirs)
raise exception.InvalidParameterValue(err=msg)
try:
resources = function_get_manageable(context, host, cluster_name,
marker=marker, limit=limit,
offset=offset, sort_keys=sort_keys,
sort_dirs=sort_dirs)
except messaging.RemoteError as err:
if err.exc_type == "InvalidInput":
raise exception.InvalidInput(err.value)
raise
resource_count = len(resources)
if is_detail:
resources = view_builder.detail_list(req, resources, resource_count)
else:
resources = view_builder.summary_list(req, resources, resource_count)
return resources