106 lines
3.6 KiB
Python
106 lines
3.6 KiB
Python
# Copyright 2015-2016 Mirantis, Inc.
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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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from oslo_messaging._drivers import common
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from oslo_messaging._drivers.zmq_driver.client import zmq_client_base
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from oslo_messaging._drivers.zmq_driver import zmq_async
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from oslo_messaging._drivers.zmq_driver import zmq_names
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zmq = zmq_async.import_zmq()
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class WrongClientException(common.RPCException):
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"""Raised if client type doesn't match configuration"""
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class ZmqClientMixDirectPubSub(zmq_client_base.ZmqClientBase):
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"""Client for using with direct connections and fanout over proxy:
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use_pub_sub = true
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use_router_proxy = false
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"""
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def __init__(self, conf, matchmaker=None, allowed_remote_exmods=None):
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if conf.oslo_messaging_zmq.use_router_proxy or not \
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conf.oslo_messaging_zmq.use_pub_sub:
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raise WrongClientException()
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publisher = self._create_publisher_direct_dynamic(conf, matchmaker) \
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if conf.oslo_messaging_zmq.use_dynamic_connections else \
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self._create_publisher_direct(conf, matchmaker)
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publisher_proxy = self._create_publisher_proxy_dynamic(conf,
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matchmaker) \
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if conf.oslo_messaging_zmq.use_dynamic_connections else \
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self._create_publisher_proxy(conf, matchmaker)
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super(ZmqClientMixDirectPubSub, self).__init__(
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conf, matchmaker, allowed_remote_exmods,
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publishers={
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zmq_names.CAST_FANOUT_TYPE: publisher_proxy,
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zmq_names.NOTIFY_TYPE: publisher_proxy,
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"default": publisher
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}
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)
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class ZmqClientDirect(zmq_client_base.ZmqClientBase):
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"""This kind of client (publishers combination) is to be used for
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direct connections only:
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use_pub_sub = false
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use_router_proxy = false
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"""
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def __init__(self, conf, matchmaker=None, allowed_remote_exmods=None):
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if conf.oslo_messaging_zmq.use_pub_sub or \
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conf.oslo_messaging_zmq.use_router_proxy:
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raise WrongClientException()
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publisher = self._create_publisher_direct_dynamic(conf, matchmaker) \
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if conf.oslo_messaging_zmq.use_dynamic_connections else \
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self._create_publisher_direct(conf, matchmaker)
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super(ZmqClientDirect, self).__init__(
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conf, matchmaker, allowed_remote_exmods,
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publishers={
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"default": publisher
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}
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)
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class ZmqClientProxy(zmq_client_base.ZmqClientBase):
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"""Client for using with proxy:
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use_pub_sub = true
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use_router_proxy = true
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or
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use_pub_sub = false
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use_router_proxy = true
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"""
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def __init__(self, conf, matchmaker=None, allowed_remote_exmods=None):
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if not conf.oslo_messaging_zmq.use_router_proxy:
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raise WrongClientException()
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super(ZmqClientProxy, self).__init__(
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conf, matchmaker, allowed_remote_exmods,
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publishers={
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"default": self._create_publisher_proxy(conf, matchmaker)
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}
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)
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