125 lines
3.6 KiB
Python
Executable File
125 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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#
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# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
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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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"""Command line tool for recording notification messages and replaying
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them later.
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"""
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import argparse
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import logging
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import cPickle as pickle
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import sys
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from nova import flags
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from nova import rpc
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from nova import utils
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from nova.openstack.common import cfg
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FLAGS = flags.FLAGS
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LOG = logging.getLogger(__name__)
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NOTIFICATION_TOPIC = 'notifications.info'
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def record_messages(connection, output):
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"""Listen to notification.info messages and pickle them to output."""
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def process_event(body):
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print ('%s: %s' %
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(body.get('timestamp'),
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body.get('event_type', 'unknown event'),
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))
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pickle.dump(body, output)
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connection.declare_topic_consumer(NOTIFICATION_TOPIC, process_event)
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try:
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connection.consume()
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# for i in connection.iterconsume(5):
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# print 'iteration', i
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except KeyboardInterrupt:
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pass
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def send_messages(connection, input):
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"""Read messages from the input and send them to the AMQP queue."""
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while True:
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try:
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body = pickle.load(input)
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except EOFError:
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break
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print('%s: %s' %
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(body.get('timestamp'),
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body.get('event_type', 'unknown event'),
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))
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connection.topic_send(NOTIFICATION_TOPIC, body)
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def main():
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rpc.register_opts(FLAGS)
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FLAGS.register_opts([
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cfg.StrOpt('datafile',
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default=None,
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help='Data file to read or write',
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),
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cfg.BoolOpt('record',
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help='Record events',
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),
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cfg.BoolOpt('replay',
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help='Replay events',
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),
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])
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remaining_args = FLAGS(sys.argv)
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utils.monkey_patch()
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parser = argparse.ArgumentParser(
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description='record or play back notification events',
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)
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parser.add_argument('mode',
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choices=('record', 'replay'),
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help='operating mode',
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)
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parser.add_argument('data_file',
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help='the data file to read or write',
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)
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args = parser.parse_args(remaining_args[1:])
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console = logging.StreamHandler(sys.stderr)
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console.setLevel(logging.DEBUG)
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formatter = logging.Formatter('%(message)s')
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console.setFormatter(formatter)
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root_logger = logging.getLogger('')
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root_logger.addHandler(console)
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root_logger.setLevel(logging.DEBUG)
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connection = rpc.create_connection()
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try:
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if args.mode == 'replay':
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with open(args.data_file, 'rb') as input:
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send_messages(connection, input)
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elif args.mode == 'record':
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with open(args.data_file, 'wb') as output:
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record_messages(connection, output)
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finally:
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connection.close()
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return 0
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if __name__ == '__main__':
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main()
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