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###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies GmbH
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################
from os import environ
import asyncio
from autobahn.asyncio.wamp import ApplicationSession, ApplicationRunner
class Component(ApplicationSession):
"""
An application component that subscribes and receives events.
After receiving 5 events, it unsubscribes, sleeps and then
resubscribes for another run. Then it stops.
"""
async def test(self):
self.received = 0
async def on_event(i):
print("Got event: {}".format(i))
self.received += 1
if self.received > 5:
self.runs += 1
if self.runs > 1:
self.leave()
else:
await self.subscription.unsubscribe()
print("Unsubscribed .. continue in 5s ..")
# can't use loop.call_later() with a coroutine for some reason
await asyncio.sleep(5)
await self.test()
self.subscription = await self.subscribe(on_event, u'com.myapp.topic1')
print("Subscribed with subscription ID {}".format(self.subscription.id))
async def onJoin(self, details):
self.runs = 0
await self.test()
def onDisconnect(self):
asyncio.get_event_loop().stop()
if __name__ == '__main__':
runner = ApplicationRunner(
environ.get("AUTOBAHN_DEMO_ROUTER", u"ws://127.0.0.1:8080/ws"),
u"crossbardemo",
)
runner.run(Component)
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