85 lines
3.0 KiB
Python
85 lines
3.0 KiB
Python
# Copyright 2013 OpenStack Foundation
|
|
# Copyright 2013 Rackspace Hosting
|
|
# Copyright 2013 Hewlett-Packard Development Company, L.P.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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 inspect
|
|
import os
|
|
|
|
from oslo_log import log as logging
|
|
import oslo_messaging as messaging
|
|
from oslo_service import loopingcall
|
|
from oslo_service import service
|
|
from oslo_utils import importutils
|
|
from osprofiler import profiler
|
|
|
|
from trove.common import cfg
|
|
from trove.common import profile
|
|
from trove.openstack.common.gettextutils import _
|
|
from trove import rpc
|
|
|
|
|
|
CONF = cfg.CONF
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class RpcService(service.Service):
|
|
|
|
def __init__(self, host=None, binary=None, topic=None, manager=None,
|
|
rpc_api_version=None):
|
|
super(RpcService, self).__init__()
|
|
self.host = host or CONF.host
|
|
self.binary = binary or os.path.basename(inspect.stack()[-1][1])
|
|
self.topic = topic or self.binary.rpartition('trove-')[2]
|
|
_manager = importutils.import_object(manager)
|
|
self.manager_impl = profiler.trace_cls("rpc")(_manager)
|
|
self.rpc_api_version = rpc_api_version or \
|
|
self.manager_impl.RPC_API_VERSION
|
|
profile.setup_profiler(self.binary, self.host)
|
|
|
|
def start(self):
|
|
LOG.debug("Creating RPC server for service %s", self.topic)
|
|
|
|
target = messaging.Target(topic=self.topic, server=self.host,
|
|
version=self.rpc_api_version)
|
|
|
|
if not hasattr(self.manager_impl, 'target'):
|
|
self.manager_impl.target = target
|
|
|
|
endpoints = [self.manager_impl]
|
|
self.rpcserver = rpc.get_server(target, endpoints)
|
|
self.rpcserver.start()
|
|
|
|
# TODO(hub-cap): Currently the context is none... do we _need_ it here?
|
|
report_interval = CONF.report_interval
|
|
if report_interval > 0:
|
|
pulse = loopingcall.FixedIntervalLoopingCall(
|
|
self.manager_impl.run_periodic_tasks, context=None)
|
|
pulse.start(interval=report_interval,
|
|
initial_delay=report_interval)
|
|
pulse.wait()
|
|
|
|
def stop(self):
|
|
# Try to shut the connection down, but if we get any sort of
|
|
# errors, go ahead and ignore them.. as we're shutting down anyway
|
|
try:
|
|
self.rpcserver.stop()
|
|
except Exception:
|
|
LOG.info(_("Failed to stop RPC server before shutdown. "))
|
|
pass
|
|
|
|
super(RpcService, self).stop()
|