cinder/cinder/api/contrib/scheduler_stats.py

82 lines
2.7 KiB
Python

# Copyright (c) 2014 eBay Inc.
#
# 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.
"""The Scheduler Stats extension"""
from cinder.api import common
from cinder.api import extensions
from cinder.api import microversions as mv
from cinder.api.openstack import wsgi
from cinder.api.views import scheduler_stats as scheduler_stats_view
from cinder.policies import scheduler_stats as policy
from cinder.scheduler import rpcapi
from cinder import utils
class SchedulerStatsController(wsgi.Controller):
"""The Scheduler Stats controller for the OpenStack API."""
_view_builder_class = scheduler_stats_view.ViewBuilder
def __init__(self):
self.scheduler_api = rpcapi.SchedulerAPI()
super(SchedulerStatsController, self).__init__()
@common.process_general_filtering('pool')
def _process_pool_filtering(self, context=None, filters=None,
req_version=None):
if not req_version.matches(mv.POOL_FILTER):
filters.clear()
def get_pools(self, req):
"""List all active pools in scheduler."""
context = req.environ['cinder.context']
context.authorize(policy.GET_POOL_POLICY)
detail = utils.get_bool_param('detail', req.params)
req_version = req.api_version_request
filters = req.params.copy()
filters.pop('detail', None)
self._process_pool_filtering(context=context,
filters=filters,
req_version=req_version)
if not req_version.matches(mv.POOL_TYPE_FILTER):
filters.pop('volume_type', None)
pools = self.scheduler_api.get_pools(context, filters=filters)
return self._view_builder.pools(req, pools, detail)
class Scheduler_stats(extensions.ExtensionDescriptor):
"""Scheduler stats support."""
name = "Scheduler_stats"
alias = "scheduler-stats"
updated = "2014-09-07T00:00:00+00:00"
def get_resources(self):
resources = []
res = extensions.ResourceExtension(
Scheduler_stats.alias,
SchedulerStatsController(),
collection_actions={"get_pools": "GET"})
resources.append(res)
return resources