74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011, OpenStack LLC.
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# Copyright 2012, Red Hat, 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 datetime
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import socket
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import uuid
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from glance.common import exception
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from glance.common import utils
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from glance.openstack.common import cfg
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_STRATEGIES = {
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"logging": "glance.notifier.notify_log.LoggingStrategy",
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"rabbit": "glance.notifier.notify_kombu.RabbitStrategy",
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"qpid": "glance.notifier.notify_qpid.QpidStrategy",
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"noop": "glance.notifier.notify_noop.NoopStrategy",
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"default": "glance.notifier.notify_noop.NoopStrategy",
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}
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class Notifier(object):
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"""Uses a notification strategy to send out messages about events."""
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opts = [
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cfg.StrOpt('notifier_strategy', default='default')
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]
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def __init__(self, conf, strategy=None):
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conf.register_opts(self.opts)
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strategy = conf.notifier_strategy
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try:
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self.strategy = utils.import_class(_STRATEGIES[strategy])(conf)
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except (KeyError, ImportError):
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raise exception.InvalidNotifierStrategy(strategy=strategy)
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@staticmethod
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def generate_message(event_type, priority, payload):
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return {
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"message_id": str(uuid.uuid4()),
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"publisher_id": socket.gethostname(),
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"event_type": event_type,
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"priority": priority,
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"payload": payload,
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"timestamp": str(datetime.datetime.utcnow()),
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}
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def warn(self, event_type, payload):
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msg = self.generate_message(event_type, "WARN", payload)
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self.strategy.warn(msg)
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def info(self, event_type, payload):
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msg = self.generate_message(event_type, "INFO", payload)
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self.strategy.info(msg)
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def error(self, event_type, payload):
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msg = self.generate_message(event_type, "ERROR", payload)
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self.strategy.error(msg)
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