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# Copyright 2016 Rackspace Inc.
#
# Author: Tim Simmons <tim.simmons@rackspace.com>
#
# 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.
from oslo_config import cfg
from oslo_log import log as logging
import oslo_messaging as messaging
from designate.common import profiler
from designate.loggingutils import rpc_logging
from designate import rpc
LOG = logging.getLogger(__name__)
WORKER_API = None
@profiler.trace_cls("rpc")
@rpc_logging(LOG, 'worker')
class WorkerAPI(object):
"""
Client side of the worker RPC API.
API version history:
1.0 - Initial version
1.1 - Added perform_zone_xfr and get_serial_number
"""
RPC_API_VERSION = '1.1'
def __init__(self, topic=None):
self.topic = topic if topic else cfg.CONF['service:worker'].topic
target = messaging.Target(topic=self.topic,
version=self.RPC_API_VERSION)
self.client = rpc.get_client(target, version_cap='1.1')
@classmethod
def get_instance(cls):
"""
The rpc.get_client() which is called upon the API object initialization
will cause a assertion error if the designate.rpc.TRANSPORT isn't setup
by rpc.init() before.
This fixes that by creating the rpcapi when demanded.
"""
global WORKER_API
if not WORKER_API:
WORKER_API = cls()
return WORKER_API
def create_zone(self, context, zone):
return self.client.cast(
context, 'create_zone', zone=zone)
def update_zone(self, context, zone):
return self.client.cast(
context, 'update_zone', zone=zone)
def delete_zone(self, context, zone):
return self.client.cast(
context, 'delete_zone', zone=zone)
def recover_shard(self, context, begin, end):
return self.client.cast(
context, 'recover_shard', begin=begin, end=end)
def start_zone_export(self, context, zone, export):
return self.client.cast(
context, 'start_zone_export', zone=zone, export=export)
def perform_zone_xfr(self, context, zone, servers=None):
return self.client.cast(
context, 'perform_zone_xfr', zone=zone, servers=servers)
def get_serial_number(self, context, zone, host, port):
return self.client.call(
context, 'get_serial_number', zone=zone,
host=host, port=port,
)
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