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annotate service/mqtt_graph_bridge/mqtt_graph_bridge.py @ 392:79d041273e26

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mqtt has two devices now. various older cleanups. Ignore-this: 67ca3acc5dc6aa672d0c896c9f5ae48e
author drewp@bigasterisk.com
date Sat, 19 Jan 2019 12:08:59 -0800
parents b90d9321d2ce
children 7051b8b4766a
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1 from docopt import docopt
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2 from patchablegraph import PatchableGraph, CycloneGraphHandler, CycloneGraphEventsHandler
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3 from rdflib import Namespace, URIRef, Literal, Graph
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4 from rdflib.parser import StringInputSource
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5 from twisted.internet import reactor
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6 import cyclone.web
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7 import sys, logging, json
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8 from mqtt_client import MqttClient
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9
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10 ROOM = Namespace('http://projects.bigasterisk.com/room/')
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11
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12 devs = {
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13 ROOM['kitchenLight']: {'root': 'h801_skylight', 'ctx': ROOM['kitchenH801']},
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14 ROOM['kitchenCounterLight']: {'root': 'h801_counter', 'ctx': ROOM['kitchenH801']},
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15 }
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16
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17 logging.basicConfig()
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18 log = logging.getLogger()
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19
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20 def rdfGraphBody(body, headers):
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21 g = Graph()
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22 g.parse(StringInputSource(body), format='nt')
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23 return g
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24
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25 class OutputPage(cyclone.web.RequestHandler):
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26 def put(self):
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27 arg = self.request.arguments
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28 if arg.get('s') and arg.get('p'):
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29 subj = URIRef(arg['s'][-1])
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30 pred = URIRef(arg['p'][-1])
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31 turtleLiteral = self.request.body
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32 try:
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33 obj = Literal(float(turtleLiteral))
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34 except ValueError:
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35 obj = Literal(turtleLiteral)
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36 stmt = (subj, pred, obj)
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37 else:
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38 g = rdfGraphBody(self.request.body, self.request.headers)
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39 assert len(g) == 1, len(g)
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40 stmt = g.triples((None, None, None)).next()
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41 self._onStatement(stmt)
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42
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43 def _onStatement(self, stmt):
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44 ignored = True
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45 for dev, attrs in devs.items():
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46 if stmt[0:2] == (dev, ROOM['brightness']):
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47 self.settings.mqtt.publish("%s/light/kit_w1/command" % attrs['root'],
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48 json.dumps({'state': 'ON', 'brightness': int(stmt[2].toPython() * 255)}))
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49 self.settings.masterGraph.patchObject(attrs['ctx'],
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50 stmt[0], stmt[1], stmt[2])
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51 ignored = False
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52 if ignored:
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53 log.warn("ignoring %s", stmt)
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54
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55 if __name__ == '__main__':
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56 arg = docopt("""
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57 Usage: mqtt_graph_bridge.py [options]
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58
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59 -v Verbose
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60 """)
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61 log.setLevel(logging.WARN)
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62 if arg['-v']:
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63 from twisted.python import log as twlog
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64 twlog.startLogging(sys.stdout)
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65 log.setLevel(logging.DEBUG)
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66
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67 masterGraph = PatchableGraph()
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68
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69 mqtt = MqttClient(brokerPort=1883)
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70
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71 port = 10008
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72 reactor.listenTCP(port, cyclone.web.Application([
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73 (r"/graph", CycloneGraphHandler, {'masterGraph': masterGraph}),
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74 (r"/graph/events", CycloneGraphEventsHandler,
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75 {'masterGraph': masterGraph}),
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76 (r'/output', OutputPage),
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77 ], mqtt=mqtt, masterGraph=masterGraph, debug=arg['-v']), interface='::')
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78 log.warn('serving on %s', port)
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79
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80 for dev, attrs in devs.items():
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81 masterGraph.patchObject(attrs['ctx'],
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82 dev, ROOM['brightness'], Literal(0.0))
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83
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84
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85 reactor.run()