manila/manila/scheduler/rpcapi.py

75 lines
2.3 KiB
Python

# Copyright 2012, Red Hat, 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.
"""
Client side of the scheduler manager RPC API.
"""
from oslo_config import cfg
import oslo_messaging as messaging
from oslo_serialization import jsonutils
from manila import rpc
CONF = cfg.CONF
class SchedulerAPI(object):
'''Client side of the scheduler rpc API.
API version history:
1.0 - Initial version.
1.1 - Add get_pools method
'''
RPC_API_VERSION = '1.1'
def __init__(self):
super(SchedulerAPI, self).__init__()
target = messaging.Target(topic=CONF.scheduler_topic,
version=self.RPC_API_VERSION)
self.client = rpc.get_client(target, version_cap='1.1')
def create_share(self, ctxt, topic, share_id, snapshot_id=None,
request_spec=None, filter_properties=None):
request_spec_p = jsonutils.to_primitive(request_spec)
cctxt = self.client.prepare(version='1.0')
return cctxt.cast(
ctxt,
'create_share',
topic=topic,
share_id=share_id,
snapshot_id=snapshot_id,
request_spec=request_spec_p,
filter_properties=filter_properties,
)
def update_service_capabilities(self, ctxt,
service_name, host,
capabilities):
cctxt = self.client.prepare(fanout=True, version='1.0')
cctxt.cast(
ctxt,
'update_service_capabilities',
service_name=service_name,
host=host,
capabilities=capabilities,
)
def get_pools(self, ctxt, filters=None):
cctxt = self.client.prepare(version='1.1')
return cctxt.call(ctxt, 'get_pools',
filters=filters)