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annotate service/piNode/piNode.py @ 1056:d2007482aec5

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start sending oneshot events from some devices Ignore-this: 2c98200e9bab1acca872f4cdcaf88e4d darcs-hash:b2f012ddfc31f4800c4c1c34ebb6243169b70a67
author drewp <drewp@bigasterisk.com>
date Fri, 12 Feb 2016 02:41:29 -0800
parents f3c7f617c335
children 0c4ec87d4498
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 from __future__ import division
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2 import sys, logging, socket, json, time, os
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3 import cyclone.web
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4 from cyclone.httpclient import fetch
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5 from rdflib import Namespace, URIRef, Literal, Graph, RDF, ConjunctiveGraph
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6 from rdflib.parser import StringInputSource
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7 from twisted.internet import reactor, task
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8 from docopt import docopt
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9
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10 logging.basicConfig(level=logging.DEBUG)
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11 sys.path.append("/opt/homeauto_lib")
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12 from patchablegraph import PatchableGraph, CycloneGraphHandler, CycloneGraphEventsHandler
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13 from light9.rdfdb.rdflibpatch import inContext
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14 from light9.rdfdb.patch import Patch
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15 sys.path.append('/opt/pigpio')
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16 try:
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17 import pigpio
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18 except ImportError:
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19 class pigpio(object):
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20 @staticmethod
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21 def pi():
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22 return None
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23
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24 import devices
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25
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26 # from /my/proj/room
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27 from carbondata import CarbonClient
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28
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29 log = logging.getLogger()
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30 logging.getLogger('serial').setLevel(logging.WARN)
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31
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32 ROOM = Namespace('http://projects.bigasterisk.com/room/')
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33 HOST = Namespace('http://bigasterisk.com/ruler/host/')
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34
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35 hostname = socket.gethostname()
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36
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37 CTX = ROOM['pi/%s' % hostname]
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38
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39 class Config(object):
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40 def __init__(self, masterGraph):
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41 self.graph = ConjunctiveGraph()
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42 log.info('read config')
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43 for f in os.listdir('config'):
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44 if f.startswith('.'): continue
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45 self.graph.parse('config/%s' % f, format='n3')
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46 self.graph.bind('', ROOM) # not working
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47 self.graph.bind('rdf', RDF)
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48 # config graph is too noisy; maybe make it a separate resource
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49 #masterGraph.patch(Patch(addGraph=self.graph))
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50
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51 class Board(object):
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52 """similar to arduinoNode.Board but without the communications stuff"""
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53 def __init__(self, graph, masterGraph, uri):
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54 self.graph, self.uri = graph, uri
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55 self.masterGraph = masterGraph
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56 self.masterGraph.patch(Patch(addQuads=self.staticStmts()))
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57 self.pi = pigpio.pi()
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58 self._devs = devices.makeDevices(graph, self.uri, self.pi)
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59 log.debug('found %s devices', len(self._devs))
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60 self._statementsFromInputs = {} # input device uri: latest statements
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61 self._lastPollTime = {} # input device uri: time()
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62 self._carbon = CarbonClient(serverHost='bang')
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63 for d in self._devs:
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64 self.syncMasterGraphToHostStatements(d)
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65
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66 def startPolling(self):
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67 task.LoopingCall(self._poll).start(.05)
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68
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69 def _poll(self):
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70 for i in self._devs:
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71 now = time.time()
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72 if (hasattr(i, 'pollPeriod') and
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73 self._lastPollTime.get(i.uri, 0) + i.pollPeriod > now):
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74 continue
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75 new = i.poll()
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76 if isinstance(new, dict): # new style
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77 oneshot = new['oneshot']
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78 new = new['latest']
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79 else:
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80 oneshot = None
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81 prev = self._statementsFromInputs.get(i.uri, [])
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82
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83 if new or prev:
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84 self._statementsFromInputs[i.uri] = new
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85 # it's important that quads from different devices
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86 # don't clash, since that can lead to inconsistent
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87 # patches (e.g.
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88 # dev1 changes value from 1 to 2;
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89 # dev2 changes value from 2 to 3;
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90 # dev1 changes from 2 to 4 but this patch will
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91 # fail since the '2' statement is gone)
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92 self.masterGraph.patch(Patch.fromDiff(inContext(prev, i.uri),
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93 inContext(new, i.uri)))
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94
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95 if oneshot:
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96 self._sendOneshot(oneshot)
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97 self._lastPollTime[i.uri] = now
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98 self._exportToGraphite()
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99
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100 def _sendOneshot(self, oneshot):
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101 body = (' '.join('%s %s %s .' % (s.n3(), p.n3(), o.n3())
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102 for s,p,o in oneshot)).encode('utf8')
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103 bang6 = 'fcb8:4119:fb46:96f8:8b07:1260:0f50:fcfa'
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104 fetch(method='POST',
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105 url='http://[%s]:9071/oneShot' % bang6,
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106 headers={'Content-Type': ['text/n3']}, postdata=body,
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107 timeout=5)
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108
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109 def _exportToGraphite(self):
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110 # note this is writing way too often- graphite is storing at a lower res
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111 now = time.time()
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112 # 20 sec is not precise; just trying to reduce wifi traffic
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113 if getattr(self, 'lastGraphiteExport', 0) + 20 > now:
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114 return
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115 self.lastGraphiteExport = now
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116 log.debug('graphite export:')
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117 # objects of these statements are suitable as graphite values.
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118 graphitePredicates = {ROOM['temperatureF']}
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119 # bug: one sensor can have temp and humid- this will be ambiguous
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120 for s, graphiteName in self.graph.subject_objects(ROOM['graphiteName']):
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121 for group in self._statementsFromInputs.values():
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122 for stmt in group:
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123 if stmt[0] == s and stmt[1] in graphitePredicates:
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124 log.debug(' sending %s -> %s', stmt[0], graphiteName)
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125 self._carbon.send(graphiteName, stmt[2].toPython(), now)
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126
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127 def outputStatements(self, stmts):
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128 unused = set(stmts)
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129 for dev in self._devs:
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130 stmtsForDev = []
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131 for pat in dev.outputPatterns():
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132 if [term is None for term in pat] != [False, False, True]:
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133 raise NotImplementedError
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134 for stmt in stmts:
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135 if stmt[:2] == pat[:2]:
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136 stmtsForDev.append(stmt)
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137 unused.discard(stmt)
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138 if stmtsForDev:
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139 log.info("output goes to action handler for %s" % dev.uri)
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140 dev.sendOutput(stmtsForDev)
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141
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142 # Dev *could* change hostStatements at any time, and
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143 # we're not currently tracking that, but the usual is
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144 # to change them in response to sendOutput so this
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145 # should be good enough. The right answer is to give
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146 # each dev the masterGraph for it to write to.
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147 self.syncMasterGraphToHostStatements(dev)
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148 log.info("output and masterGraph sync complete")
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149 if unused:
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150 log.info("Board %s doesn't care about these statements:", self.uri)
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151 for s in unused:
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152 log.warn("%r", s)
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153
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154 def syncMasterGraphToHostStatements(self, dev):
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155 hostStmtCtx = URIRef(dev.uri + '/host')
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156 newQuads = inContext(dev.hostStatements(), hostStmtCtx)
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157 p = self.masterGraph.patchSubgraph(hostStmtCtx, newQuads)
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158 log.debug("patch master with these host stmts %s", p)
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159
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160 def staticStmts(self):
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161 return [(HOST[hostname], ROOM['connectedTo'], self.uri, CTX)]
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162
988
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163 def description(self):
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164 """for web page"""
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165 return {
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166 'uri': self.uri,
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167 'devices': [d.description() for d in self._devs],
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168 'graph': 'http://sticker:9059/graph', #todo
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169 }
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170
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171 class Dot(cyclone.web.RequestHandler):
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172 def get(self):
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173 configGraph = self.settings.config.graph
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174 dot = dotrender.render(configGraph, self.settings.boards)
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175 self.write(dot)
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176
989
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177 def rdfGraphBody(body, headers):
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178 g = Graph()
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179 g.parse(StringInputSource(body), format='nt')
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180 return g
988
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181
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182 class OutputPage(cyclone.web.RequestHandler):
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183 def put(self):
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184 arg = self.request.arguments
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185 if arg.get('s') and arg.get('p'):
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186 subj = URIRef(arg['s'][-1])
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187 pred = URIRef(arg['p'][-1])
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diff changeset
188 turtleLiteral = self.request.body
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diff changeset
189 try:
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190 obj = Literal(float(turtleLiteral))
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diff changeset
191 except ValueError:
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192 obj = Literal(turtleLiteral)
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193 stmt = (subj, pred, obj)
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diff changeset
194 else:
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195 g = rdfGraphBody(self.request.body, self.request.headers)
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196 assert len(g) == 1, len(g)
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197 stmt = g.triples((None, None, None)).next()
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198
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199 self.settings.board.outputStatements([stmt])
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200
988
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diff changeset
201 class Boards(cyclone.web.RequestHandler):
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diff changeset
202 def get(self):
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diff changeset
203 self.set_header('Content-type', 'application/json')
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204 self.write(json.dumps({
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205 'host': hostname,
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206 'boards': [self.settings.board.description()]
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diff changeset
207 }, indent=2))
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diff changeset
208
987
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diff changeset
209 def main():
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diff changeset
210 arg = docopt("""
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
211 Usage: piNode.py [options]
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parents:
diff changeset
212
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
213 -v Verbose
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
214 """)
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parents:
diff changeset
215 log.setLevel(logging.WARN)
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parents:
diff changeset
216 if arg['-v']:
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parents:
diff changeset
217 from twisted.python import log as twlog
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parents:
diff changeset
218 twlog.startLogging(sys.stdout)
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parents:
diff changeset
219
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parents:
diff changeset
220 log.setLevel(logging.DEBUG)
1038
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diff changeset
221
1031
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diff changeset
222 masterGraph = PatchableGraph()
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diff changeset
223 config = Config(masterGraph)
987
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parents:
diff changeset
224
1038
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diff changeset
225 thisHost = Literal(hostname)
1026
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drewp <drewp@bigasterisk.com>
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diff changeset
226 for row in config.graph.query(
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
227 'SELECT ?board WHERE { ?board a :PiBoard; :hostname ?h }',
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drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
228 initBindings=dict(h=thisHost)):
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
229 thisBoard = row.board
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
230 break
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
231 else:
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
232 raise ValueError("config had no board for :hostname %r" % thisHost)
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
233
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
234 log.info("found config for board %r" % thisBoard)
1031
9328df09f679 piNode uses new graph SSE code
drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
235 board = Board(config.graph, masterGraph, thisBoard)
988
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drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
236 board.startPolling()
987
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parents:
diff changeset
237
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
238 reactor.listenTCP(9059, cyclone.web.Application([
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
239 (r"/()", cyclone.web.StaticFileHandler, {
988
63c172316239 get piNode working, for motionsensor at least
drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
240 "path": "../arduinoNode/static", "default_filename": "index.html"}),
63c172316239 get piNode working, for motionsensor at least
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parents: 987
diff changeset
241 (r'/static/(.*)', cyclone.web.StaticFileHandler, {"path": "../arduinoNode/static"}),
1038
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diff changeset
242 (r'/boards', Boards),
1031
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drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
243 (r"/graph", CycloneGraphHandler, {'masterGraph': masterGraph}),
9328df09f679 piNode uses new graph SSE code
drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
244 (r"/graph/events", CycloneGraphEventsHandler, {'masterGraph': masterGraph}),
987
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parents:
diff changeset
245 (r'/output', OutputPage),
1038
ffe6a00c6cef server/browser graph sync. cut dependency on the WS version. merge some changes between arduino/pi code.
drewp <drewp@bigasterisk.com>
parents: 1035
diff changeset
246 (r'/dot', Dot),
1025
f58b5536f683 ipv6 and some refactor
drewp <drewp@bigasterisk.com>
parents: 989
diff changeset
247 ], config=config, board=board, debug=arg['-v']), interface='::')
987
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parents:
diff changeset
248 reactor.run()
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parents:
diff changeset
249
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parents:
diff changeset
250 main()