86 lines
3.4 KiB
Python
86 lines
3.4 KiB
Python
# Copyright 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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import logging
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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_socket
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zmq = zmq_async.import_zmq()
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LOG = logging.getLogger(__name__)
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class SocketsManager(object):
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def __init__(self, conf, matchmaker, socket_type):
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self.conf = conf
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self.matchmaker = matchmaker
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self.socket_type = socket_type
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self.zmq_context = zmq.Context()
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self.socket_to_publishers = None
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self.socket_to_routers = None
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self.sockets = {}
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def get_socket(self, immediate=True):
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return zmq_socket.ZmqSocket(self.conf, self.zmq_context,
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self.socket_type, immediate=immediate)
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def get_cached_socket(self, target_key, hosts=None, immediate=True):
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hosts = [] if hosts is None else hosts
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socket = self.sockets.get(target_key, None)
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if socket is None:
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LOG.debug("CREATING NEW socket for target_key %s " % target_key)
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socket = zmq_socket.ZmqSocket(self.conf, self.zmq_context,
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self.socket_type,
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immediate=immediate)
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self.sockets[target_key] = socket
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for host in hosts:
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socket.connect_to_host(host)
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LOG.debug("Target key: %s socket:%s" % (target_key,
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socket.handle.identity))
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return socket
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def get_socket_to_publishers(self, identity=None):
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if self.socket_to_publishers is not None:
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return self.socket_to_publishers
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self.socket_to_publishers = zmq_socket.ZmqSocket(
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self.conf, self.zmq_context, self.socket_type,
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immediate=self.conf.oslo_messaging_zmq.zmq_immediate,
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identity=identity)
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publishers = self.matchmaker.get_publishers()
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for pub_address, fe_router_address in publishers:
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self.socket_to_publishers.connect_to_host(fe_router_address)
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return self.socket_to_publishers
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def get_socket_to_routers(self, identity=None):
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if self.socket_to_routers is not None:
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return self.socket_to_routers
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self.socket_to_routers = zmq_socket.ZmqSocket(
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self.conf, self.zmq_context, self.socket_type,
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immediate=self.conf.oslo_messaging_zmq.zmq_immediate,
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identity=identity)
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routers = self.matchmaker.get_routers()
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for be_router_address in routers:
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self.socket_to_routers.connect_to_host(be_router_address)
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return self.socket_to_routers
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def cleanup(self):
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if self.socket_to_publishers:
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self.socket_to_publishers.close()
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if self.socket_to_routers:
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self.socket_to_routers.close()
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for socket in self.sockets.values():
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socket.close()
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