#!/usr/bin/env python
# Copyright European Organization for Nuclear Research (CERN)
#
# 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
#
# Authors:
# - Mario Lassnig, <mario.lassnig@cern.ch>, 2014-2015, 2017

"""
Hermes is a daemon to deliver messages to an asynchronous broker.
"""

import argparse
import signal

from rucio.daemons.hermes.hermes import run, stop

if __name__ == "__main__":

    signal.signal(signal.SIGTERM, stop)

    parser = argparse.ArgumentParser()
    parser.add_argument("--run-once", action="store_true", default=False, help='One iteration only')
    parser.add_argument("--threads", action="store", default=1, type=int, help='Concurrency control: number of threads')
    parser.add_argument("--bulk", action="store", default=1000, type=int, help='Bulk control: number of requests per cycle')
    parser.add_argument("--delay", action="store", default=10, type=int, help='Delay control: second control per cycle')
    parser.add_argument("--broker-timeout", action="store", default=3, type=int, help='Broker control: timeout second per cycle')
    parser.add_argument("--broker-retry", action="store", default=3, type=int, help='Broker control: number of retries per cycle')
    args = parser.parse_args()

    try:
        run(once=args.run_once,
            threads=args.threads,
            bulk=args.bulk,
            delay=args.delay,
            broker_timeout=args.broker_timeout,
            broker_retry=args.broker_retry)
    except KeyboardInterrupt:
        stop()
