67 lines
1.9 KiB
Python
67 lines
1.9 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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from autobahn.asyncio.websocket import WebSocketServerProtocol, \
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WebSocketServerFactory
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import asyncio
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import json
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class SlowSquareServerProtocol(WebSocketServerProtocol):
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@asyncio.coroutine
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def slowsquare(self, x):
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if x > 5:
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raise Exception("number too large")
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else:
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yield from asyncio.sleep(1)
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return x * x
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@asyncio.coroutine
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def onMessage(self, payload, isBinary):
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if not isBinary:
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x = json.loads(payload.decode('utf8'))
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try:
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res = yield from self.slowsquare(x)
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except Exception as e:
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self.sendClose(1000, str(e))
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else:
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self.sendMessage(json.dumps(res).encode('utf8'))
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if __name__ == '__main__':
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import asyncio
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factory = WebSocketServerFactory("ws://localhost:9000", debug = False)
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factory.protocol = SlowSquareServerProtocol
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loop = asyncio.get_event_loop()
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coro = loop.create_server(factory, '127.0.0.1', 9000)
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server = loop.run_until_complete(coro)
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try:
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loop.run_forever()
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except KeyboardInterrupt:
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pass
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finally:
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server.close()
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loop.close()
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