/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/zmq_driver/proxy/zmq_sender.py is in python-oslo.messaging 5.35.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | # Copyright 2016 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 abc
import logging
import six
from oslo_messaging._drivers.zmq_driver import zmq_async
from oslo_messaging._drivers.zmq_driver import zmq_names
from oslo_messaging._drivers.zmq_driver import zmq_version
from oslo_messaging._i18n import _LW
LOG = logging.getLogger(__name__)
zmq = zmq_async.import_zmq()
@six.add_metaclass(abc.ABCMeta)
class Sender(object):
@abc.abstractmethod
def send_message(self, socket, multipart_message):
"""Send message to a socket from a multipart list."""
class CentralSender(Sender):
def __init__(self):
self._send_message_versions = \
zmq_version.get_method_versions(self, 'send_message')
def send_message(self, socket, multipart_message):
message_version = multipart_message[zmq_names.MESSAGE_VERSION_IDX]
if six.PY3:
message_version = message_version.decode('utf-8')
send_message_version = self._send_message_versions.get(message_version)
if send_message_version is None:
LOG.warning(_LW("Dropping message with unsupported version %s"),
message_version)
return
send_message_version(socket, multipart_message)
class LocalSender(Sender):
pass
class CentralRouterSender(CentralSender):
def _send_message_v_1_0(self, socket, multipart_message):
message_type = int(multipart_message[zmq_names.MESSAGE_TYPE_IDX])
routing_key = multipart_message[zmq_names.ROUTING_KEY_IDX]
reply_id = multipart_message[zmq_names.REPLY_ID_IDX]
message_id = multipart_message[zmq_names.MESSAGE_ID_IDX]
message_version = multipart_message[zmq_names.MESSAGE_VERSION_IDX]
socket.send(routing_key, zmq.SNDMORE)
socket.send(b'', zmq.SNDMORE)
socket.send(message_version, zmq.SNDMORE)
socket.send(reply_id, zmq.SNDMORE)
socket.send(multipart_message[zmq_names.MESSAGE_TYPE_IDX], zmq.SNDMORE)
socket.send_multipart(multipart_message[zmq_names.MESSAGE_ID_IDX:])
LOG.debug("Dispatching %(msg_type)s message %(msg_id)s - from %(rid)s "
"-> to %(rkey)s (v%(msg_version)s)",
{"msg_type": zmq_names.message_type_str(message_type),
"msg_id": message_id,
"rkey": routing_key,
"rid": reply_id,
"msg_version": message_version})
class CentralAckSender(CentralSender):
def _send_message_v_1_0(self, socket, multipart_message):
message_type = zmq_names.ACK_TYPE
message_id = multipart_message[zmq_names.MESSAGE_ID_IDX]
routing_key = socket.handle.identity
reply_id = multipart_message[zmq_names.REPLY_ID_IDX]
message_version = multipart_message[zmq_names.MESSAGE_VERSION_IDX]
socket.send(reply_id, zmq.SNDMORE)
socket.send(b'', zmq.SNDMORE)
socket.send(message_version, zmq.SNDMORE)
socket.send(routing_key, zmq.SNDMORE)
socket.send(six.b(str(message_type)), zmq.SNDMORE)
socket.send_string(message_id)
LOG.debug("Sending %(msg_type)s for %(msg_id)s to %(rid)s "
"[from %(rkey)s] (v%(msg_version)s)",
{"msg_type": zmq_names.message_type_str(message_type),
"msg_id": message_id,
"rid": reply_id,
"rkey": routing_key,
"msg_version": message_version})
class CentralPublisherSender(CentralSender):
def _send_message_v_1_0(self, socket, multipart_message):
message_type = int(multipart_message[zmq_names.MESSAGE_TYPE_IDX])
assert message_type in zmq_names.MULTISEND_TYPES, "Fanout expected!"
topic_filter = multipart_message[zmq_names.ROUTING_KEY_IDX]
message_id = multipart_message[zmq_names.MESSAGE_ID_IDX]
message_version = multipart_message[zmq_names.MESSAGE_VERSION_IDX]
socket.send(topic_filter, zmq.SNDMORE)
socket.send(message_version, zmq.SNDMORE)
socket.send(six.b(str(message_type)), zmq.SNDMORE)
socket.send_multipart(multipart_message[zmq_names.MESSAGE_ID_IDX:])
LOG.debug("Publishing message %(msg_id)s on [%(topic)s] "
"(v%(msg_version)s)",
{"topic": topic_filter,
"msg_id": message_id,
"msg_version": message_version})
class LocalPublisherSender(LocalSender):
TOPIC_IDX = 0
MSG_VERSION_IDX = 1
MSG_TYPE_IDX = 2
MSG_ID_IDX = 3
def send_message(self, socket, multipart_message):
socket.send_multipart(multipart_message)
LOG.debug("Publishing message %(msg_id)s on [%(topic)s] "
"(v%(msg_version)s)",
{"topic": multipart_message[self.TOPIC_IDX],
"msg_id": multipart_message[self.MSG_ID_IDX],
"msg_version": multipart_message[self.MSG_VERSION_IDX]})
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