inspect-queue

#!/usr/bin/env python3

# This file is part of Cockpit.
#
# Copyright (C) 2018 Red Hat, Inc.
#
# Cockpit is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Cockpit is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Cockpit; If not, see <http://www.gnu.org/licenses/>.

import argparse
import sys

from task import distributed_queue

MAX_PRIORITY = 9


def main():
    parser = argparse.ArgumentParser(description='Read and print messages from the queue without acknowleding them')
    parser.add_argument('--amqp', default=distributed_queue.DEFAULT_AMQP_SERVER,
                        help='The host:port of the AMQP server to consume from (default: %(default)s)')
    parser.add_argument('--secrets-dir', default=distributed_queue.DEFAULT_SECRETS_DIR,
                        help='Directory with ca.pem and amqp-client.{pem,key} (default: %(default)s)')
    opts = parser.parse_args()

    with distributed_queue.DistributedQueue(opts.amqp, ['public', 'rhel', 'statistics', 'webhook'],
                                            secrets_dir=opts.secrets_dir, passive=True) as q:
        def print_queue(queue):
            if q.declare_results[queue] is None:
                print(f"queue {queue} does not exist")
                return
            message_count = q.declare_results[queue].method.message_count
            if message_count == 0:
                print(f"queue {queue} is empty")
                return
            for i in range(message_count):
                method_frame, header_frame, body = q.channel.basic_get(queue=queue)
                if method_frame:
                    print(body.decode())

        print('public queue:')
        print_queue('public')
        print('rhel queue:')
        print_queue('rhel')
        print('statistics queue:')
        print_queue('statistics')
        print('webhook queue:')
        print_queue('webhook')

    return 0


if __name__ == '__main__':
    sys.exit(main())