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47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
# coding: utf-8
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import tornado.ioloop
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import tornado.gen
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import time
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import sys
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sys.path.insert(0, "../../../protobuf/python/proto")
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from datetime import datetime
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from nats.io.utils import new_inbox
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from nats.io import Client as NATS
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import message_pb2
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@tornado.gen.coroutine
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def main():
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nc = NATS()
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# Establish connection to the server.
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options = { "verbose": True, "servers": ["nats://127.0.0.1:4222"] }
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yield nc.connect(**options)
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def discover(msg=None):
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channel_message = message_pb2.ChannelMessage()
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channel_message.ParseFromString(msg.data)
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print("[Received]: %s" % channel_message)
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send_message = message_pb2.ChannelMessage()
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send_message.chan_num = 5
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#send_message.from = "python"
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send_message.message = "Hello, World!"
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sid = yield nc.subscribe("world.channel_message", "", discover)
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yield nc.publish("world.channel_message", send_message.SerializeToString())
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loop = tornado.ioloop.IOLoop.instance()
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yield tornado.gen.Task(loop.add_timeout, time.time() + 20)
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try:
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start = datetime.now()
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# Make roundtrip to the server and timeout after 1 second
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yield nc.flush(1)
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end = datetime.now()
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print("Latency: %d µs" % (end.microsecond - start.microsecond))
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except tornado.gen.TimeoutError, e:
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print("Timeout! Roundtrip too slow...")
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if __name__ == '__main__':
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tornado.ioloop.IOLoop.instance().run_sync(main) |