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docs and error msgs Ignore-this: 5c451744c5fa08c4560e45e6a90de4bd
author drewp@bigasterisk.com
date Wed, 10 May 2017 04:03:54 +0000
parents 4294ed82ee16
children c1bf296b0a74
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1 #!bin/python
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2 from __future__ import division
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3 from rdflib import Graph, URIRef, Literal
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4 from twisted.internet import reactor, utils
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5 from twisted.web.server import Site
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6 from txzmq import ZmqEndpoint, ZmqFactory, ZmqPullConnection
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7 import json
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8 import logging
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9 import klein
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10 import optparse
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11 from greplin import scales
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12 from greplin.scales.twistedweb import StatsResource
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13
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14 from run_local import log
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15 from light9.collector.output import EnttecDmx, Udmx
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16 from light9.collector.collector import Collector
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17 from light9.namespaces import L9
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18 from light9 import networking
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19 from light9.rdfdb.syncedgraph import SyncedGraph
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20 from light9.rdfdb import clientsession
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21
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22 def parseJsonMessage(msg):
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23 body = json.loads(msg)
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24 settings = []
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25 for device, attr, value in body['settings']:
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26 settings.append((URIRef(device), URIRef(attr), Literal(value)))
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27 return body['client'], body['clientSession'], settings, body['sendTime']
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28
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29 class WebServer(object):
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30 stats = scales.collection('/webServer',
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31 scales.PmfStat('setAttr'))
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32 app = klein.Klein()
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33 def __init__(self, collector):
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34 self.collector = collector
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35
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36 @app.route('/attrs', methods=['PUT'])
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37 def putAttrs(self, request):
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38 with WebServer.stats.setAttr.time():
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39 client, clientSession, settings, sendTime = parseJsonMessage(request.content.read())
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40 self.collector.setAttrs(client, clientSession, settings, sendTime)
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41 request.setResponseCode(202)
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42
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43 @app.route('/stats', methods=['GET'])
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44 def getStats(self, request):
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45 return StatsResource('collector')
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46
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47 def startZmq(port, collector):
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48 stats = scales.collection('/zmqServer',
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49 scales.PmfStat('setAttr'))
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50
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51 zf = ZmqFactory()
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52 addr = 'tcp://*:%s' % port
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53 log.info('creating zmq endpoint at %r', addr)
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54 e = ZmqEndpoint('bind', addr)
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55 s = ZmqPullConnection(zf, e)
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56 def onPull(message):
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57 with stats.setAttr.time():
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58 # todo: new compressed protocol where you send all URIs up
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59 # front and then use small ints to refer to devices and
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60 # attributes in subsequent requests.
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61 client, clientSession, settings, sendTime = parseJsonMessage(message[0])
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62 collector.setAttrs(client, clientSession, settings, sendTime)
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63 s.onPull = onPull
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64
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65 def launch(graph, doLoadTest=False):
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66 try:
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67 # todo: drive outputs with config files
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68 outputs = [
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69 #EnttecDmx(L9['output/dmx0/'], '/dev/dmx0', 80),
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70 Udmx(L9['output/udmx/'], 510),
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71 ]
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72 except Exception as e:
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73 log.error("setting up outputs: %r", e)
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74 traceback.print_exc()
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75 raise
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76 c = Collector(graph, outputs)
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77 server = WebServer(c)
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78 startZmq(networking.collectorZmq.port, c)
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79
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80 reactor.listenTCP(networking.collector.port,
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81 Site(server.app.resource()),
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82 interface='::')
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83 log.info('serving http on %s, zmq on %s', networking.collector.port,
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84 networking.collectorZmq.port)
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85 if doLoadTest:
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86 # in a subprocess since we don't want this client to be
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87 # cooperating with the main event loop and only sending
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88 # requests when there's free time
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89 def afterWarmup():
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90 log.info('running collector_loadtest')
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91 d = utils.getProcessValue('bin/python', ['bin/collector_loadtest.py'])
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92 def done(*a):
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93 log.info('loadtest done')
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94 reactor.stop()
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95 d.addCallback(done)
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96 reactor.callLater(2, afterWarmup)
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97
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98 def main():
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99 parser = optparse.OptionParser()
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100 parser.add_option("-v", "--verbose", action="store_true",
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101 help="logging.DEBUG")
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102 parser.add_option("--loadtest", action="store_true",
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103 help="call myself with some synthetic load then exit")
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104 (options, args) = parser.parse_args()
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105 log.setLevel(logging.DEBUG if options.verbose else logging.INFO)
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106
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107 graph = SyncedGraph(networking.rdfdb.url, "collector")
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108
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109 graph.initiallySynced.addCallback(lambda _: launch(graph, options.loadtest))
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110 reactor.run()
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111
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112 if __name__ == '__main__':
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113 main()