oslo.messaging/oslo_messaging/_drivers/zmq_driver/client/publishers/zmq_push_publisher.py

58 lines
2.0 KiB
Python

# Copyright 2015 Mirantis, Inc.
#
# 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 logging
from oslo_messaging._drivers.zmq_driver.client.publishers\
import zmq_publisher_base
from oslo_messaging._drivers.zmq_driver import zmq_async
from oslo_messaging._drivers.zmq_driver import zmq_names
from oslo_messaging._i18n import _LI, _LW
LOG = logging.getLogger(__name__)
zmq = zmq_async.import_zmq()
class PushPublisher(zmq_publisher_base.PublisherMultisend):
def __init__(self, conf, matchmaker):
super(PushPublisher, self).__init__(conf, matchmaker, zmq.PUSH)
def send_request(self, request):
if request.msg_type == zmq_names.CALL_TYPE:
raise zmq_publisher_base.UnsupportedSendPattern(request.msg_type)
push_socket, hosts = self._check_hosts_connections(request.target)
if not push_socket.connections:
LOG.warning(_LW("Request %s was dropped because no connection")
% request.msg_type)
return
if request.msg_type in zmq_names.MULTISEND_TYPES:
for _ in range(push_socket.connections_count()):
self._send_request(push_socket, request)
else:
self._send_request(push_socket, request)
def _send_request(self, socket, request):
super(PushPublisher, self)._send_request(socket, request)
LOG.info(_LI("Publishing message %(message)s to a target %(target)s")
% {"message": request.message,
"target": request.target})