/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/zmq_driver/client/zmq_client.py is in python-oslo.messaging 5.10.0-2.
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#
# 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_messaging._drivers import common
from oslo_messaging._drivers.zmq_driver.client.publishers.dealer \
import zmq_dealer_publisher_direct
from oslo_messaging._drivers.zmq_driver.client.publishers.dealer \
import zmq_dealer_publisher_proxy
from oslo_messaging._drivers.zmq_driver.client import zmq_ack_manager
from oslo_messaging._drivers.zmq_driver.client import zmq_client_base
from oslo_messaging._drivers.zmq_driver import zmq_async
from oslo_messaging._drivers.zmq_driver import zmq_names
zmq = zmq_async.import_zmq()
class WrongClientException(common.RPCException):
"""Raised if client type doesn't match configuration"""
class ZmqClientMixDirectPubSub(zmq_client_base.ZmqClientBase):
"""Client for using with direct connections and fanout over proxy:
use_pub_sub = true
use_router_proxy = false
"""
def __init__(self, conf, matchmaker=None, allowed_remote_exmods=None):
if conf.oslo_messaging_zmq.use_router_proxy or not \
conf.oslo_messaging_zmq.use_pub_sub:
raise WrongClientException()
publisher_direct = self.create_publisher(
conf, matchmaker,
zmq_dealer_publisher_direct.DealerPublisherDirect,
zmq_ack_manager.AckManagerDirect
)
publisher_proxy = self.create_publisher(
conf, matchmaker,
zmq_dealer_publisher_proxy.DealerPublisherProxy,
zmq_ack_manager.AckManagerProxy
)
super(ZmqClientMixDirectPubSub, self).__init__(
conf, matchmaker, allowed_remote_exmods,
publishers={
zmq_names.CAST_FANOUT_TYPE: publisher_proxy,
zmq_names.NOTIFY_TYPE: publisher_proxy,
"default": publisher_direct
}
)
class ZmqClientDirect(zmq_client_base.ZmqClientBase):
"""This kind of client (publishers combination) is to be used for
direct connections only:
use_pub_sub = false
use_router_proxy = false
"""
def __init__(self, conf, matchmaker=None, allowed_remote_exmods=None):
if conf.oslo_messaging_zmq.use_pub_sub or \
conf.oslo_messaging_zmq.use_router_proxy:
raise WrongClientException()
publisher = self.create_publisher(
conf, matchmaker,
zmq_dealer_publisher_direct.DealerPublisherDirect,
zmq_ack_manager.AckManagerDirect
)
super(ZmqClientDirect, self).__init__(
conf, matchmaker, allowed_remote_exmods,
publishers={"default": publisher}
)
class ZmqClientProxy(zmq_client_base.ZmqClientBase):
"""Client for using with proxy:
use_pub_sub = true
use_router_proxy = true
or
use_pub_sub = false
use_router_proxy = true
"""
def __init__(self, conf, matchmaker=None, allowed_remote_exmods=None):
if not conf.oslo_messaging_zmq.use_router_proxy:
raise WrongClientException()
publisher = self.create_publisher(
conf, matchmaker,
zmq_dealer_publisher_proxy.DealerPublisherProxy,
zmq_ack_manager.AckManagerProxy
)
super(ZmqClientProxy, self).__init__(
conf, matchmaker, allowed_remote_exmods,
publishers={"default": publisher}
)
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