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annotate service/mqtt_graph_bridge/mqtt_graph_bridge.py @ 694:925bc4137c93

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extract rdfStatementsFromRequest for sharing with other tools Ignore-this: 74eba63f3a29f48b48c6fb1ae74780d3
author drewp@bigasterisk.com
date Fri, 31 Jan 2020 23:54:20 -0800
parents e1ee6661329a
children c52b172c0824
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1 """
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2 We get output statements that are like light9's deviceAttrs (:dev1 :color "#ff0000"),
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3 convert those to outputAttrs (:dev1 :red 255; :green 0; :blue 0) and post them to mqtt.
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4
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5 This is like light9/bin/collector.
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6 """
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7 import json
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8
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9 from docopt import docopt
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10 from rdflib import Namespace, Literal
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11 from twisted.internet import reactor
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12 import cyclone.web
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13
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14 from mqtt_client import MqttClient
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15 from patchablegraph import PatchableGraph, CycloneGraphHandler, CycloneGraphEventsHandler
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16 from standardservice.logsetup import log, verboseLogging
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17 import rdf_over_http
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18
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19 ROOM = Namespace('http://projects.bigasterisk.com/room/')
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20
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21 devs = {
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22 ROOM['kitchenLight']: {
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23 'root': 'h801_skylight',
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24 'ctx': ROOM['kitchenH801']
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25 },
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26 ROOM['kitchenCounterLight']: {
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27 'root': 'h801_counter',
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28 'ctx': ROOM['kitchenH801']
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29 },
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30 }
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31
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32
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33 class OutputPage(cyclone.web.RequestHandler):
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34 def put(self):
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35 for stmt in rdf_over_http.rdfStatementsFromRequest(
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36 self.request.arguments,
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37 self.request.body,
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38 self.request.headers):
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39 self._onStatement(stmt)
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40
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41 def _onStatement(self, stmt):
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42 log.info(f'incoming statement: {stmt}')
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43 ignored = True
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44 for dev, attrs in devs.items():
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45 if stmt[0:2] == (dev, ROOM['brightness']):
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46 for chan, scale in [('w1', 1),
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47 ('r', 1),
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48 ('g', .8),
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49 ('b', .8)]:
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50 out = stmt[2].toPython() * scale
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51 topic = f"{attrs['root']}/light/kit_{chan}/command"
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52 self.settings.mqtt.publish(
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53 topic.encode('ascii'),
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54 json.dumps({
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55 'state': 'ON',
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56 'brightness': int(out * 255)}).encode('ascii'))
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57 self.settings.masterGraph.patchObject(
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58 attrs['ctx'],
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59 stmt[0], stmt[1], stmt[2])
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60 ignored = False
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61 if ignored:
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62 log.warn("ignoring %s", stmt)
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63
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64 if __name__ == '__main__':
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65 arg = docopt("""
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66 Usage: mqtt_graph_bridge.py [options]
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67
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68 -v Verbose
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69 """)
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70 verboseLogging(arg['-v'])
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71
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72 masterGraph = PatchableGraph()
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73
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74 mqtt = MqttClient(clientId='mqtt_graph_bridge', brokerPort=1883)
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75
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76 port = 10008
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77 reactor.listenTCP(port, cyclone.web.Application([
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78 (r"/()", cyclone.web.StaticFileHandler,
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79 {"path": ".", "default_filename": "index.html"}),
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80 (r"/graph", CycloneGraphHandler, {'masterGraph': masterGraph}),
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81 (r"/graph/events", CycloneGraphEventsHandler,
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82 {'masterGraph': masterGraph}),
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83 (r'/output', OutputPage),
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84 ], mqtt=mqtt, masterGraph=masterGraph, debug=arg['-v']), interface='::')
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85 log.warn('serving on %s', port)
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86
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87 for dev, attrs in devs.items():
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88 masterGraph.patchObject(attrs['ctx'],
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89 dev, ROOM['brightness'], Literal(0.0))
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90
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91 reactor.run()