63 lines
2.5 KiB
Python
63 lines
2.5 KiB
Python
# Copyright 2016 Mirantis Inc.
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# All Rights Reserved.
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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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from osprofiler.drivers import base
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class Messaging(base.Driver):
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def __init__(self, connection_str, messaging=None, context=None,
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transport=None, project=None, service=None,
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host=None, **kwargs):
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"""Driver sending notifications via message queues."""
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super(Messaging, self).__init__(connection_str, project=project,
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service=service, host=host)
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self.messaging = messaging
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self.context = context
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self.client = messaging.Notifier(
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transport, publisher_id=self.host, driver="messaging",
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topics=["profiler"], retry=0)
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@classmethod
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def get_name(cls):
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return "messaging"
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def notify(self, info, context=None):
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"""Send notifications to backend via oslo.messaging notifier API.
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:param info: Contains information about trace element.
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In payload dict there are always 3 ids:
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"base_id" - uuid that is common for all notifications
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related to one trace. Used to simplify
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retrieving of all trace elements from
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Ceilometer.
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"parent_id" - uuid of parent element in trace
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"trace_id" - uuid of current element in trace
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With parent_id and trace_id it's quite simple to build
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tree of trace elements, which simplify analyze of trace.
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:param context: request context that is mostly used to specify
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current active user and tenant.
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"""
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info["project"] = self.project
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info["service"] = self.service
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self.client.info(context or self.context,
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"profiler.%s" % info["service"],
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info)
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