143 lines
4.0 KiB
Python
143 lines
4.0 KiB
Python
# Copyright 2014 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# NOTE(esp): This code was taken from nova
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__all__ = [
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'init',
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'cleanup',
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'set_defaults',
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'add_extra_exmods',
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'clear_extra_exmods',
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'get_allowed_exmods',
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'get_client',
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'get_server',
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'get_notifier',
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]
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from oslo_config import cfg
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import oslo_messaging as messaging
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from oslo_messaging.rpc import dispatcher
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import trove.common.exception
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from trove.common.rpc import secure_serializer as ssz
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from trove.common.rpc import serializer as sz
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CONF = cfg.CONF
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TRANSPORT = None
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NOTIFICATION_TRANSPORT = None
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NOTIFIER = None
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ALLOWED_EXMODS = [
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trove.common.exception.__name__,
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]
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EXTRA_EXMODS = []
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def init(conf):
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global TRANSPORT, NOTIFICATION_TRANSPORT, NOTIFIER
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exmods = get_allowed_exmods()
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TRANSPORT = messaging.get_rpc_transport(conf,
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allowed_remote_exmods=exmods)
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NOTIFICATION_TRANSPORT = messaging.get_notification_transport(
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conf,
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allowed_remote_exmods=exmods)
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serializer = sz.TroveRequestContextSerializer(
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messaging.JsonPayloadSerializer())
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NOTIFIER = messaging.Notifier(NOTIFICATION_TRANSPORT,
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serializer=serializer)
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def cleanup():
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global TRANSPORT, NOTIFICATION_TRANSPORT, NOTIFIER
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assert TRANSPORT is not None
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assert NOTIFICATION_TRANSPORT is not None
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assert NOTIFIER is not None
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TRANSPORT.cleanup()
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NOTIFICATION_TRANSPORT.cleanup()
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TRANSPORT = NOTIFICATION_TRANSPORT = NOTIFIER = None
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def set_defaults(control_exchange):
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messaging.set_transport_defaults(control_exchange)
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def add_extra_exmods(*args):
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EXTRA_EXMODS.extend(args)
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def clear_extra_exmods():
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del EXTRA_EXMODS[:]
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def get_allowed_exmods():
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return ALLOWED_EXMODS + EXTRA_EXMODS
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def get_transport_url(url_str=None):
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return messaging.TransportURL.parse(CONF, url_str)
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def get_client(target, key, version_cap=None, serializer=None,
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secure_serializer=ssz.SecureSerializer):
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assert TRANSPORT is not None
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# BUG(1650518): Cleanup in the Pike release
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# uncomment this (following) line in the pike release
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# assert key is not None
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serializer = secure_serializer(
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sz.TroveRequestContextSerializer(serializer), key)
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return messaging.get_rpc_client(
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TRANSPORT, target, version_cap=version_cap,
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serializer=serializer)
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def get_server(target, endpoints, key, serializer=None,
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secure_serializer=ssz.SecureSerializer):
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assert TRANSPORT is not None
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# Thread module is not monkeypatched if remote debugging is enabled.
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# Using eventlet executor without monkepatching thread module will
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# lead to unpredictable results.
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from trove.common import debug_utils
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debug_utils.setup()
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executor = "blocking" if debug_utils.enabled() else "eventlet"
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# BUG(1650518): Cleanup in the Pike release
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# uncomment this (following) line in the pike release
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# assert key is not None
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serializer = secure_serializer(
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sz.TroveRequestContextSerializer(serializer), key)
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return messaging.get_rpc_server(
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TRANSPORT,
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target,
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endpoints,
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executor=executor,
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serializer=serializer,
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access_policy=dispatcher.DefaultRPCAccessPolicy)
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def get_notifier(service=None, host=None, publisher_id=None):
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assert NOTIFIER is not None
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if not publisher_id:
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publisher_id = "%s.%s" % (service, host or CONF.host)
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return NOTIFIER.prepare(publisher_id=publisher_id)
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