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###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Tavendo 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.
#
###############################################################################
import sys
try:
import asyncio
except ImportError:
# Trollius >= 0.3 was renamed
import trollius as asyncio
from autobahn.asyncio import wamp, websocket
class MyFrontendComponent(wamp.ApplicationSession):
"""
Application code goes here. This is an example component that calls
a remote procedure on a WAMP peer, subscribes to a topic to receive
events, and then stops the world after some events.
"""
def onConnect(self):
self.join(u"realm1")
@asyncio.coroutine
def onJoin(self, details):
# call a remote procedure
##
try:
now = yield from self.call(u'com.timeservice.now')
except Exception as e:
print("Error: {}".format(e))
else:
print("Current time from time service: {}".format(now))
# subscribe to a topic
##
self.received = 0
def on_event(i):
print("Got event: {}".format(i))
self.received += 1
if self.received > 5:
self.leave()
sub = yield from self.subscribe(on_event, u'com.myapp.topic1')
print("Subscribed with subscription ID {}".format(sub.id))
def onLeave(self, details):
self.disconnect()
def onDisconnect(self):
asyncio.get_event_loop().stop()
if __name__ == '__main__':
# 1) create a WAMP application session factory
session_factory = wamp.ApplicationSessionFactory()
session_factory.session = MyFrontendComponent
# 2) create a WAMP-over-WebSocket transport client factory
transport_factory = websocket.WampWebSocketClientFactory(session_factory,
debug=False,
debug_wamp=False)
# 3) start the client
loop = asyncio.get_event_loop()
coro = loop.create_connection(transport_factory, '127.0.0.1', 8080)
loop.run_until_complete(coro)
# 4) now enter the asyncio event loop
loop.run_forever()
loop.close()
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