manila/manila/data/rpcapi.py

68 lines
2.3 KiB
Python

# Copyright 2015, Hitachi Data Systems.
#
# 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 data manager RPC API.
"""
from oslo_config import cfg
import oslo_messaging as messaging
from manila import rpc
CONF = cfg.CONF
class DataAPI(object):
"""Client side of the data RPC API.
API version history:
1.0 - Initial version,
Add migration_start(),
data_copy_cancel(),
data_copy_get_progress()
"""
BASE_RPC_API_VERSION = '1.0'
def __init__(self):
super(DataAPI, self).__init__()
target = messaging.Target(topic=CONF.data_topic,
version=self.BASE_RPC_API_VERSION)
self.client = rpc.get_client(target, version_cap='1.0')
def migration_start(self, context, share_id, ignore_list,
share_instance_id, dest_share_instance_id,
connection_info_src, connection_info_dest):
call_context = self.client.prepare(version='1.0')
call_context.cast(
context,
'migration_start',
share_id=share_id,
ignore_list=ignore_list,
share_instance_id=share_instance_id,
dest_share_instance_id=dest_share_instance_id,
connection_info_src=connection_info_src,
connection_info_dest=connection_info_dest)
def data_copy_cancel(self, context, share_id):
call_context = self.client.prepare(version='1.0')
call_context.call(context, 'data_copy_cancel', share_id=share_id)
def data_copy_get_progress(self, context, share_id):
call_context = self.client.prepare(version='1.0')
return call_context.call(context, 'data_copy_get_progress',
share_id=share_id)