98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
###############################################################################
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#
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# The MIT License (MIT)
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#
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# Copyright (c) Crossbar.io Technologies GmbH
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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###############################################################################
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import math
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from os import environ
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from twisted.internet import reactor
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from twisted.internet.defer import inlineCallbacks
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from autobahn import wamp
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from autobahn.wamp.exception import ApplicationError
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from autobahn.twisted.wamp import ApplicationSession, ApplicationRunner
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@wamp.error(u"com.myapp.error1")
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class AppError1(Exception):
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"""
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An application specific exception that is decorated with a WAMP URI,
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and hence can be automapped by Autobahn.
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"""
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class Component(ApplicationSession):
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"""
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Example WAMP application frontend that catches exceptions.
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"""
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@inlineCallbacks
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def onJoin(self, details):
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print("session attached")
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# catching standard exceptions
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##
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for x in [2, 0, -2]:
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try:
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res = yield self.call(u'com.myapp.sqrt', x)
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except Exception as e:
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print("Error: {} {}".format(e, e.args))
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else:
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print("Result: {}".format(res))
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# catching WAMP application exceptions
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##
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for name in ['foo', 'a', '*' * 11, 'Hello']:
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try:
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res = yield self.call(u'com.myapp.checkname', name)
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except ApplicationError as e:
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print("Error: {} {} {} {}".format(e, e.error, e.args, e.kwargs))
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else:
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print("Result: {}".format(res))
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# defining and automapping WAMP application exceptions
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##
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self.define(AppError1)
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try:
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yield self.call(u'com.myapp.compare', 3, 17)
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except AppError1 as e:
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print("Compare Error: {}".format(e))
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print("Exiting; we received only errors we expected.")
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self.leave()
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def onDisconnect(self):
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print("disconnected")
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reactor.stop()
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if __name__ == '__main__':
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runner = ApplicationRunner(
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environ.get("AUTOBAHN_DEMO_ROUTER", u"ws://127.0.0.1:8080/ws"),
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u"crossbardemo",
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)
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runner.run(Component)
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