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annotate service/piNode/piNode.py @ 1063:295d20307b81

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try a speedup for raspi Ignore-this: 9cdbabb99c9888792c167866f06d65eb darcs-hash:a10ec9fb5dc728c876e236137bce904f1d190414
author drewp <drewp@bigasterisk.com>
date Mon, 21 Mar 2016 04:23:59 -0700
parents d2007482aec5
children dc0eb85f8650
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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 def patchRandid():
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40 """
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41 I'm concerned urandom is slow on raspberry pi, and I'm adding to
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42 graphs a lot. Unclear what the ordered return values might do to
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43 the balancing of the graph.
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44 """
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45 _id_serial = [1000]
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46 def randid():
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47 _id_serial[0] += 1
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48 return _id_serial[0]
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49 import rdflib.plugins.memory
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50 rdflib.plugins.memory.randid = randid
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51 patchRandid()
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52
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53 class Config(object):
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54 def __init__(self, masterGraph):
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55 self.graph = ConjunctiveGraph()
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56 log.info('read config')
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57 for f in os.listdir('config'):
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58 if f.startswith('.'): continue
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59 self.graph.parse('config/%s' % f, format='n3')
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60 log.info(' parsed %s', f)
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61 self.graph.bind('', ROOM) # not working
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62 self.graph.bind('rdf', RDF)
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63 # config graph is too noisy; maybe make it a separate resource
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64 #masterGraph.patch(Patch(addGraph=self.graph))
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65
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66 class Board(object):
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67 """similar to arduinoNode.Board but without the communications stuff"""
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68 def __init__(self, graph, masterGraph, uri):
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69 self.graph, self.uri = graph, uri
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70 self.masterGraph = masterGraph
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71 self.masterGraph.patch(Patch(addQuads=self.staticStmts()))
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72 self.pi = pigpio.pi()
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73 self._devs = devices.makeDevices(graph, self.uri, self.pi)
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74 log.debug('found %s devices', len(self._devs))
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75 self._statementsFromInputs = {} # input device uri: latest statements
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76 self._lastPollTime = {} # input device uri: time()
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77 self._carbon = CarbonClient(serverHost='bang')
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78 for d in self._devs:
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79 self.syncMasterGraphToHostStatements(d)
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80
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81 def startPolling(self):
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82 task.LoopingCall(self._poll).start(.05)
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83
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84 def _poll(self):
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85 for i in self._devs:
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86 now = time.time()
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87 if (hasattr(i, 'pollPeriod') and
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88 self._lastPollTime.get(i.uri, 0) + i.pollPeriod > now):
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89 continue
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90 new = i.poll()
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91 if isinstance(new, dict): # new style
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92 oneshot = new['oneshot']
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93 new = new['latest']
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94 else:
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95 oneshot = None
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96 prev = self._statementsFromInputs.get(i.uri, [])
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97
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98 if new or prev:
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99 self._statementsFromInputs[i.uri] = new
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100 # it's important that quads from different devices
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101 # don't clash, since that can lead to inconsistent
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102 # patches (e.g.
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103 # dev1 changes value from 1 to 2;
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104 # dev2 changes value from 2 to 3;
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105 # dev1 changes from 2 to 4 but this patch will
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106 # fail since the '2' statement is gone)
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107 self.masterGraph.patch(Patch.fromDiff(inContext(prev, i.uri),
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108 inContext(new, i.uri)))
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109
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110 if oneshot:
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111 self._sendOneshot(oneshot)
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112 self._lastPollTime[i.uri] = now
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113 self._exportToGraphite()
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114
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115 def _sendOneshot(self, oneshot):
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116 body = (' '.join('%s %s %s .' % (s.n3(), p.n3(), o.n3())
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117 for s,p,o in oneshot)).encode('utf8')
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118 bang6 = 'fcb8:4119:fb46:96f8:8b07:1260:0f50:fcfa'
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119 fetch(method='POST',
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120 url='http://[%s]:9071/oneShot' % bang6,
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121 headers={'Content-Type': ['text/n3']}, postdata=body,
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122 timeout=5)
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123
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124 def _exportToGraphite(self):
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125 # note this is writing way too often- graphite is storing at a lower res
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126 now = time.time()
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127 # 20 sec is not precise; just trying to reduce wifi traffic
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128 if getattr(self, 'lastGraphiteExport', 0) + 20 > now:
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129 return
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130 self.lastGraphiteExport = now
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131 log.debug('graphite export:')
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132 # objects of these statements are suitable as graphite values.
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133 graphitePredicates = {ROOM['temperatureF']}
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134 # bug: one sensor can have temp and humid- this will be ambiguous
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135 for s, graphiteName in self.graph.subject_objects(ROOM['graphiteName']):
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136 for group in self._statementsFromInputs.values():
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137 for stmt in group:
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138 if stmt[0] == s and stmt[1] in graphitePredicates:
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139 log.debug(' sending %s -> %s', stmt[0], graphiteName)
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140 self._carbon.send(graphiteName, stmt[2].toPython(), now)
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141
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142 def outputStatements(self, stmts):
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143 unused = set(stmts)
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144 for dev in self._devs:
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145 stmtsForDev = []
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146 for pat in dev.outputPatterns():
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147 if [term is None for term in pat] != [False, False, True]:
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148 raise NotImplementedError
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149 for stmt in stmts:
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150 if stmt[:2] == pat[:2]:
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151 stmtsForDev.append(stmt)
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152 unused.discard(stmt)
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153 if stmtsForDev:
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154 log.info("output goes to action handler for %s" % dev.uri)
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155 dev.sendOutput(stmtsForDev)
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156
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157 # Dev *could* change hostStatements at any time, and
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158 # we're not currently tracking that, but the usual is
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159 # to change them in response to sendOutput so this
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160 # should be good enough. The right answer is to give
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161 # each dev the masterGraph for it to write to.
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162 self.syncMasterGraphToHostStatements(dev)
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163 log.info("output and masterGraph sync complete")
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164 if unused:
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diff changeset
165 log.info("Board %s doesn't care about these statements:", self.uri)
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166 for s in unused:
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parents: 1035
diff changeset
167 log.warn("%r", s)
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168
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169 def syncMasterGraphToHostStatements(self, dev):
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170 hostStmtCtx = URIRef(dev.uri + '/host')
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diff changeset
171 newQuads = inContext(dev.hostStatements(), hostStmtCtx)
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diff changeset
172 p = self.masterGraph.patchSubgraph(hostStmtCtx, newQuads)
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diff changeset
173 log.debug("patch master with these host stmts %s", p)
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diff changeset
174
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diff changeset
175 def staticStmts(self):
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diff changeset
176 return [(HOST[hostname], ROOM['connectedTo'], self.uri, CTX)]
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diff changeset
177
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178 def description(self):
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parents: 987
diff changeset
179 """for web page"""
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parents: 987
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180 return {
63c172316239 get piNode working, for motionsensor at least
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diff changeset
181 'uri': self.uri,
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182 'devices': [d.description() for d in self._devs],
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diff changeset
183 'graph': 'http://sticker:9059/graph', #todo
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184 }
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diff changeset
185
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diff changeset
186 class Dot(cyclone.web.RequestHandler):
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drewp <drewp@bigasterisk.com>
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diff changeset
187 def get(self):
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diff changeset
188 configGraph = self.settings.config.graph
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diff changeset
189 dot = dotrender.render(configGraph, self.settings.boards)
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diff changeset
190 self.write(dot)
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diff changeset
191
989
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drewp <drewp@bigasterisk.com>
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diff changeset
192 def rdfGraphBody(body, headers):
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diff changeset
193 g = Graph()
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diff changeset
194 g.parse(StringInputSource(body), format='nt')
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diff changeset
195 return g
988
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parents: 987
diff changeset
196
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diff changeset
197 class OutputPage(cyclone.web.RequestHandler):
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parents:
diff changeset
198 def put(self):
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diff changeset
199 arg = self.request.arguments
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diff changeset
200 if arg.get('s') and arg.get('p'):
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parents: 988
diff changeset
201 subj = URIRef(arg['s'][-1])
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drewp <drewp@bigasterisk.com>
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diff changeset
202 pred = URIRef(arg['p'][-1])
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drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
203 turtleLiteral = self.request.body
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drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
204 try:
065fc9e07c10 piNode allow nt graphs as the body of a PUT /output
drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
205 obj = Literal(float(turtleLiteral))
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drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
206 except ValueError:
065fc9e07c10 piNode allow nt graphs as the body of a PUT /output
drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
207 obj = Literal(turtleLiteral)
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diff changeset
208 stmt = (subj, pred, obj)
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drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
209 else:
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drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
210 g = rdfGraphBody(self.request.body, self.request.headers)
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drewp <drewp@bigasterisk.com>
parents: 988
diff changeset
211 assert len(g) == 1, len(g)
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parents: 988
diff changeset
212 stmt = g.triples((None, None, None)).next()
987
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parents:
diff changeset
213
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
214 self.settings.board.outputStatements([stmt])
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parents:
diff changeset
215
988
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parents: 987
diff changeset
216 class Boards(cyclone.web.RequestHandler):
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drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
217 def get(self):
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drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
218 self.set_header('Content-type', 'application/json')
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drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
219 self.write(json.dumps({
1038
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drewp <drewp@bigasterisk.com>
parents: 1035
diff changeset
220 'host': hostname,
988
63c172316239 get piNode working, for motionsensor at least
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parents: 987
diff changeset
221 'boards': [self.settings.board.description()]
63c172316239 get piNode working, for motionsensor at least
drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
222 }, indent=2))
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drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
223
987
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parents:
diff changeset
224 def main():
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
225 arg = docopt("""
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
226 Usage: piNode.py [options]
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
227
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
228 -v Verbose
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
229 """)
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
230 log.setLevel(logging.WARN)
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
231 if arg['-v']:
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
232 from twisted.python import log as twlog
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
233 twlog.startLogging(sys.stdout)
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
234
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
235 log.setLevel(logging.DEBUG)
1038
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drewp <drewp@bigasterisk.com>
parents: 1035
diff changeset
236
1031
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drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
237 masterGraph = PatchableGraph()
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drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
238 config = Config(masterGraph)
987
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parents:
diff changeset
239
1038
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drewp <drewp@bigasterisk.com>
parents: 1035
diff changeset
240 thisHost = Literal(hostname)
1026
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
241 for row in config.graph.query(
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
242 'SELECT ?board WHERE { ?board a :PiBoard; :hostname ?h }',
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
243 initBindings=dict(h=thisHost)):
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
244 thisBoard = row.board
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
245 break
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
246 else:
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
247 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
248
8e075449ba0a piNode support for temp sensors. proper hostname lookup
drewp <drewp@bigasterisk.com>
parents: 1025
diff changeset
249 log.info("found config for board %r" % thisBoard)
1031
9328df09f679 piNode uses new graph SSE code
drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
250 board = Board(config.graph, masterGraph, thisBoard)
988
63c172316239 get piNode working, for motionsensor at least
drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
251 board.startPolling()
987
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
252
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
253 reactor.listenTCP(9059, cyclone.web.Application([
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
254 (r"/()", cyclone.web.StaticFileHandler, {
988
63c172316239 get piNode working, for motionsensor at least
drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
255 "path": "../arduinoNode/static", "default_filename": "index.html"}),
63c172316239 get piNode working, for motionsensor at least
drewp <drewp@bigasterisk.com>
parents: 987
diff changeset
256 (r'/static/(.*)', cyclone.web.StaticFileHandler, {"path": "../arduinoNode/static"}),
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
257 (r'/boards', Boards),
1031
9328df09f679 piNode uses new graph SSE code
drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
258 (r"/graph", CycloneGraphHandler, {'masterGraph': masterGraph}),
9328df09f679 piNode uses new graph SSE code
drewp <drewp@bigasterisk.com>
parents: 1030
diff changeset
259 (r"/graph/events", CycloneGraphEventsHandler, {'masterGraph': masterGraph}),
987
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
260 (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
261 (r'/dot', Dot),
1025
f58b5536f683 ipv6 and some refactor
drewp <drewp@bigasterisk.com>
parents: 989
diff changeset
262 ], config=config, board=board, debug=arg['-v']), interface='::')
1063
295d20307b81 try a speedup for raspi
drewp <drewp@bigasterisk.com>
parents: 1056
diff changeset
263 log.warn('serving on 9059')
987
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drewp <drewp@bigasterisk.com>
parents:
diff changeset
264 reactor.run()
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
265
cc79d092e136 start pinode
drewp <drewp@bigasterisk.com>
parents:
diff changeset
266 main()