python/examples/recurring_timer_tornado.py

#!/usr/bin/env python
#
# Licensed to the Apache Software Foundation (ASF) under one
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# regarding copyright ownership.  The ASF licenses this file
# to you 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
#
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from __future__ import print_function
import time
from proton.reactor import Handler
from proton_tornado import TornadoLoop

class Recurring(Handler):
    def __init__(self, period):
        self.period = period

    def on_start(self, event):
        self.container = event.container
        self.container.schedule(time.time() + self.period, subject=self)

    def on_timer(self, event):
        print("Tick...")
        self.container.schedule(time.time() + self.period, subject=self)

try:
    container = TornadoLoop(Recurring(1.0))
    container.run()
except KeyboardInterrupt:
    container.stop()
    print()