92 lines
2.9 KiB
Python
92 lines
2.9 KiB
Python
###############################################################################
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##
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## Copyright (C) 2014 Tavendo GmbH
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##
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## Licensed under the Apache License, Version 2.0 (the "License");
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## you may not use this file except in compliance with the License.
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## You may obtain a copy of the License at
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##
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## http://www.apache.org/licenses/LICENSE-2.0
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##
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## Unless required by applicable law or agreed to in writing, software
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## distributed under the License is distributed on an "AS IS" BASIS,
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## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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## See the License for the specific language governing permissions and
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## limitations under the License.
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##
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###############################################################################
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import sys
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import six
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import datetime
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from twisted.python import log
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from twisted.internet import reactor
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from twisted.internet.defer import inlineCallbacks
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from twisted.internet.endpoints import serverFromString
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from autobahn.wamp import types
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from autobahn.twisted.util import sleep
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from autobahn.twisted import wamp, websocket
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class MyBackendComponent(wamp.ApplicationSession):
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"""
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Application code goes here. This is an example component that provides
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a simple procedure which can be called remotely from any WAMP peer.
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It also publishes an event every second to some topic.
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"""
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@inlineCallbacks
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def onJoin(self, details):
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## register a procedure for remote calling
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##
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def utcnow():
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print("Someone is calling me;)")
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now = datetime.datetime.utcnow()
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return six.u(now.strftime("%Y-%m-%dT%H:%M:%SZ"))
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reg = yield self.register(utcnow, u'com.timeservice.now')
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print("Registered procedure with ID {}".format(reg.id))
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## publish events to a topic
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##
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counter = 0
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while True:
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self.publish(u'com.myapp.topic1', counter)
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print("Published event.")
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counter += 1
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yield sleep(1)
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if __name__ == '__main__':
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## 0) start logging to console
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log.startLogging(sys.stdout)
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## 1) create a WAMP router factory
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router_factory = wamp.RouterFactory()
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## 2) create a WAMP router session factory
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session_factory = wamp.RouterSessionFactory(router_factory)
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## 3) Optionally, add embedded WAMP application sessions to the router
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component_config = types.ComponentConfig(realm = "realm1")
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component_session = MyBackendComponent(component_config)
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session_factory.add(component_session)
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## 4) create a WAMP-over-WebSocket transport server factory
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transport_factory = websocket.WampWebSocketServerFactory(session_factory,
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debug = False,
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debug_wamp = False)
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## 5) start the server from a Twisted endpoint
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server = serverFromString(reactor, "tcp:8080")
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server.listen(transport_factory)
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## 6) now enter the Twisted reactor loop
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reactor.run()
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