/usr/lib/python2.7/dist-packages/ceilometer/messaging.py is in python-ceilometer 1:6.0.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
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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 | # -*- coding: utf-8 -*-
# Copyright 2013-2015 eNovance <licensing@enovance.com>
#
# 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_config import cfg
import oslo_context.context
import oslo_messaging
from oslo_messaging import serializer as oslo_serializer
DEFAULT_URL = "__default__"
TRANSPORTS = {}
def setup():
oslo_messaging.set_transport_defaults('ceilometer')
def get_transport(url=None, optional=False, cache=True):
"""Initialise the oslo_messaging layer."""
global TRANSPORTS, DEFAULT_URL
cache_key = url or DEFAULT_URL
transport = TRANSPORTS.get(cache_key)
if not transport or not cache:
try:
transport = oslo_messaging.get_transport(cfg.CONF, url)
except oslo_messaging.InvalidTransportURL as e:
if not optional or e.url:
# NOTE(sileht): oslo_messaging is configured but unloadable
# so reraise the exception
raise
return None
else:
if cache:
TRANSPORTS[cache_key] = transport
return transport
def cleanup():
"""Cleanup the oslo_messaging layer."""
global TRANSPORTS, NOTIFIERS
NOTIFIERS = {}
for url in TRANSPORTS:
TRANSPORTS[url].cleanup()
del TRANSPORTS[url]
class RequestContextSerializer(oslo_messaging.Serializer):
def __init__(self, base):
self._base = base
def serialize_entity(self, context, entity):
if not self._base:
return entity
return self._base.serialize_entity(context, entity)
def deserialize_entity(self, context, entity):
if not self._base:
return entity
return self._base.deserialize_entity(context, entity)
def serialize_context(self, context):
return context.to_dict()
def deserialize_context(self, context):
return oslo_context.context.RequestContext.from_dict(context)
_SERIALIZER = RequestContextSerializer(
oslo_serializer.JsonPayloadSerializer())
def get_batch_notification_listener(transport, targets, endpoints,
allow_requeue=False,
batch_size=1, batch_timeout=None):
"""Return a configured oslo_messaging notification listener."""
return oslo_messaging.get_batch_notification_listener(
transport, targets, endpoints, executor='threading',
allow_requeue=allow_requeue,
batch_size=batch_size, batch_timeout=batch_timeout)
def get_notifier(transport, publisher_id):
"""Return a configured oslo_messaging notifier."""
notifier = oslo_messaging.Notifier(transport, serializer=_SERIALIZER)
return notifier.prepare(publisher_id=publisher_id)
def convert_to_old_notification_format(priority, notification):
# FIXME(sileht): temporary convert notification to old format
# to focus on oslo_messaging migration before refactoring the code to
# use the new oslo_messaging facilities
notification = notification.copy()
notification['priority'] = priority
notification.update(notification["metadata"])
for k in notification['ctxt']:
notification['_context_' + k] = notification['ctxt'][k]
del notification['ctxt']
del notification['metadata']
return notification
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