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annotate bin/collector @ 1541:c1bf296b0a74
collector uses cyclone and gets a web ui showing output attrs
Ignore-this: 6dda48ab8d89344e0c8271429c8175af
author | Drew Perttula <drewp@bigasterisk.com> |
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date | Wed, 17 May 2017 07:39:21 +0000 |
parents | a5a44077c54c |
children | c8cffe82b537 |
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1 #!bin/python |
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2 from __future__ import division |
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3 from rdflib import URIRef, Literal |
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4 from twisted.internet import reactor, utils |
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5 from txzmq import ZmqEndpoint, ZmqFactory, ZmqPullConnection |
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6 import json |
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7 import logging |
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8 import optparse |
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9 import time |
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10 import traceback |
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11 import cyclone.web, cyclone.websocket |
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12 from greplin import scales |
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13 |
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14 from run_local import log |
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15 from lib.cycloneerr import PrettyErrorHandler |
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16 from light9.collector.output import EnttecDmx, Udmx |
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17 from light9.collector.collector import Collector |
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18 from light9.namespaces import L9 |
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19 from light9 import networking |
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collector uses rdfdb
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20 from light9.rdfdb.syncedgraph import SyncedGraph |
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21 from light9.greplin_cyclone import StatsForCyclone |
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22 |
1491 | 23 def parseJsonMessage(msg): |
1492 | 24 body = json.loads(msg) |
1491 | 25 settings = [] |
26 for device, attr, value in body['settings']: | |
27 settings.append((URIRef(device), URIRef(attr), Literal(value))) | |
28 return body['client'], body['clientSession'], settings, body['sendTime'] | |
29 | |
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30 def startZmq(port, collector): |
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31 stats = scales.collection('/zmqServer', |
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32 scales.PmfStat('setAttr')) |
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33 |
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34 zf = ZmqFactory() |
1492 | 35 addr = 'tcp://*:%s' % port |
36 log.info('creating zmq endpoint at %r', addr) | |
37 e = ZmqEndpoint('bind', addr) | |
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38 s = ZmqPullConnection(zf, e) |
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39 def onPull(message): |
1492 | 40 with stats.setAttr.time(): |
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41 # todo: new compressed protocol where you send all URIs up |
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42 # front and then use small ints to refer to devices and |
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43 # attributes in subsequent requests. |
1492 | 44 client, clientSession, settings, sendTime = parseJsonMessage(message[0]) |
45 collector.setAttrs(client, clientSession, settings, sendTime) | |
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46 s.onPull = onPull |
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47 |
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48 class WebListeners(object): |
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49 def __init__(self): |
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50 self.clients = [] |
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51 |
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52 def addClient(self, client): |
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53 self.clients.append([client, {}]) |
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54 |
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55 def delClient(self, client): |
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56 self.clients = [[c, t] for c, t in self.clients if c != client] |
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57 |
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58 def outputAttrsSet(self, dev, attrs, outputMap): |
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59 now = time.time() |
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60 |
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61 msg = self.makeMsg(dev, attrs, outputMap) |
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62 |
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63 for client, seen in self.clients: |
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64 for m, t in seen.items(): |
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65 if t < now - 5: |
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66 del seen[m] |
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67 if msg in seen: |
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68 continue |
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69 seen[msg] = now |
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70 client.sendMessage(msg) |
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71 |
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72 def makeMsg(self, dev, attrs, outputMap): |
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73 attrRows = [] |
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74 for attr, val in attrs.items(): |
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75 output, index = outputMap[(dev, attr)] |
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76 attrRows.append({'attr': attr.rsplit('/')[-1], |
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77 'val': val, |
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78 'chan': (output.shortId(), index)}) |
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79 attrRows.sort(key=lambda r: r['chan']) |
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80 for row in attrRows: |
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81 row['chan'] = '%s %s' % (row['chan'][0], row['chan'][1]) |
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82 |
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83 msg = json.dumps({'outputAttrsSet': {'dev': dev, 'attrs': attrRows}}, sort_keys=True) |
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84 return msg |
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85 |
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86 class Updates(cyclone.websocket.WebSocketHandler): |
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87 |
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88 def connectionMade(self, *args, **kwargs): |
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89 self.settings.listeners.addClient(self) |
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90 |
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91 def connectionLost(self, reason): |
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92 self.settings.listeners.delClient(self) |
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93 |
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94 def messageReceived(self, message): |
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95 json.loads(message) |
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96 |
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97 stats = scales.collection('/webServer', scales.PmfStat('setAttr')) |
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98 |
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99 class Attrs(PrettyErrorHandler, cyclone.web.RequestHandler): |
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100 def put(self): |
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101 with stats.setAttr.time(): |
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102 client, clientSession, settings, sendTime = parseJsonMessage(self.request.body) |
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103 self.settings.collector.setAttrs(client, clientSession, settings, sendTime) |
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104 self.set_status(202) |
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105 |
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106 |
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107 |
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108 def launch(graph, doLoadTest=False): |
1530 | 109 try: |
110 # todo: drive outputs with config files | |
111 outputs = [ | |
112 #EnttecDmx(L9['output/dmx0/'], '/dev/dmx0', 80), | |
113 Udmx(L9['output/udmx/'], 510), | |
114 ] | |
115 except Exception as e: | |
116 log.error("setting up outputs: %r", e) | |
117 traceback.print_exc() | |
118 raise | |
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119 listeners = WebListeners() |
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120 c = Collector(graph, outputs, listeners) |
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121 |
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122 startZmq(networking.collectorZmq.port, c) |
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123 |
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124 reactor.listenTCP(networking.collector.port, |
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125 cyclone.web.Application(handlers=[ |
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126 (r'/()', cyclone.web.StaticFileHandler, |
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127 {"path" : "light9/collector/web", "default_filename" : "index.html"}), |
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128 (r'/updates', Updates), |
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129 (r'/attrs', Attrs), |
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130 (r'/stats', StatsForCyclone), |
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131 ], collector=c, listeners=listeners), |
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132 interface='::') |
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133 log.info('serving http on %s, zmq on %s', networking.collector.port, |
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134 networking.collectorZmq.port) |
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135 if doLoadTest: |
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136 # in a subprocess since we don't want this client to be |
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137 # cooperating with the main event loop and only sending |
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138 # requests when there's free time |
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139 def afterWarmup(): |
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140 log.info('running collector_loadtest') |
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141 d = utils.getProcessValue('bin/python', ['bin/collector_loadtest.py']) |
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142 def done(*a): |
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143 log.info('loadtest done') |
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144 reactor.stop() |
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145 d.addCallback(done) |
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146 reactor.callLater(2, afterWarmup) |
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147 |
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148 def main(): |
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149 parser = optparse.OptionParser() |
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150 parser.add_option("-v", "--verbose", action="store_true", |
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151 help="logging.DEBUG") |
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152 parser.add_option("--loadtest", action="store_true", |
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153 help="call myself with some synthetic load then exit") |
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154 (options, args) = parser.parse_args() |
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155 log.setLevel(logging.DEBUG if options.verbose else logging.INFO) |
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156 |
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157 graph = SyncedGraph(networking.rdfdb.url, "collector") |
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158 |
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159 graph.initiallySynced.addCallback(lambda _: launch(graph, options.loadtest)).addErrback(log.error) |
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160 reactor.run() |
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161 |
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162 if __name__ == '__main__': |
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163 main() |