Mercurial > code > home > repos > homeauto
annotate service/arduinoNode/arduinoNode.py @ 251:254df9f881a6
start sending oneshot events from some devices
Ignore-this: 2c98200e9bab1acca872f4cdcaf88e4d
| author | drewp@bigasterisk.com |
|---|---|
| date | Fri, 12 Feb 2016 02:41:29 -0800 |
| parents | 141079644c45 |
| children | d2c60552fb13 |
| rev | line source |
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1 """ |
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2 depends on packages: |
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3 arduino-mk |
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4 indent |
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5 """ |
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6 from __future__ import division |
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7 import glob, sys, logging, subprocess, socket, os, hashlib, time, tempfile |
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8 import shutil, json |
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9 import serial |
| 164 | 10 import cyclone.web |
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11 from cyclone.httpclient import fetch |
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12 from rdflib import Graph, Namespace, URIRef, Literal, RDF, ConjunctiveGraph |
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13 from rdflib.parser import StringInputSource |
| 164 | 14 from twisted.internet import reactor, task |
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15 from docopt import docopt |
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16 |
| 164 | 17 import devices |
| 229 | 18 import write_arduino_code |
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19 import dotrender |
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20 import rdflib_patch |
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21 rdflib_patch.fixQnameOfUriWithTrailingSlash() |
| 164 | 22 |
| 23 logging.basicConfig(level=logging.DEBUG) | |
| 24 | |
| 25 from loggingserial import LoggingSerial | |
| 26 | |
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27 sys.path.append("../../lib") |
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28 from patchablegraph import PatchableGraph, CycloneGraphHandler, CycloneGraphEventsHandler |
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29 |
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30 sys.path.append("/my/proj/light9") |
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31 from light9.rdfdb.patch import Patch |
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32 from light9.rdfdb.rdflibpatch import inContext |
| 164 | 33 |
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34 sys.path.append("/my/proj/room") |
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35 from carbondata import CarbonClient |
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36 |
| 164 | 37 log = logging.getLogger() |
| 38 logging.getLogger('serial').setLevel(logging.WARN) | |
| 39 | |
| 40 ROOM = Namespace('http://projects.bigasterisk.com/room/') | |
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41 HOST = Namespace('http://bigasterisk.com/ruler/host/') |
| 164 | 42 |
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43 ACTION_BASE = 10 # higher than any of the fixed command numbers |
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44 |
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45 hostname = socket.gethostname() |
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46 CTX = ROOM['arduinosOn%s' % hostname] |
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47 |
| 164 | 48 class Config(object): |
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49 def __init__(self, masterGraph): |
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50 self.graph = ConjunctiveGraph() |
| 164 | 51 log.info('read config') |
| 214 | 52 for f in os.listdir('config'): |
| 53 if f.startswith('.'): continue | |
| 54 self.graph.parse('config/%s' % f, format='n3') | |
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55 self.graph.bind('', ROOM) # not working |
| 164 | 56 self.graph.bind('rdf', RDF) |
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57 # config graph is too noisy; maybe make it a separate resource |
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58 #masterGraph.patch(Patch(addGraph=self.graph)) |
| 164 | 59 |
| 60 def serialDevices(self): | |
| 61 return dict([(row.dev, row.board) for row in self.graph.query( | |
| 62 """SELECT ?board ?dev WHERE { | |
| 63 ?board :device ?dev; | |
| 64 a :ArduinoBoard . | |
| 65 }""", initNs={'': ROOM})]) | |
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66 |
| 164 | 67 class Board(object): |
| 68 """an arduino connected to this computer""" | |
| 69 baudrate = 115200 | |
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70 def __init__(self, dev, configGraph, masterGraph, uri): |
| 164 | 71 """ |
| 72 each connected thing has some pins. | |
| 73 """ | |
| 74 self.uri = uri | |
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75 self.configGraph = configGraph |
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76 self.masterGraph = masterGraph |
| 164 | 77 self.dev = dev |
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78 |
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79 self.masterGraph.patch(Patch(addQuads=self.staticStmts())) |
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80 |
| 164 | 81 # The order of this list needs to be consistent between the |
| 82 # deployToArduino call and the poll call. | |
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83 self._devs = devices.makeDevices(configGraph, self.uri) |
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84 self._devCommandNum = dict((dev.uri, ACTION_BASE + devIndex) |
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85 for devIndex, dev in enumerate(self._devs)) |
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86 self._polledDevs = [d for d in self._devs if d.generatePollCode()] |
| 164 | 87 |
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88 self._statementsFromInputs = {} # input device uri: latest statements |
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89 self._lastPollTime = {} # input device uri: time() |
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90 self._carbon = CarbonClient(serverHost='bang') |
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91 self.open() |
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92 for d in self._devs: |
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93 self.syncMasterGraphToHostStatements(d) |
| 164 | 94 |
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95 def description(self): |
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96 """for web page""" |
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97 return { |
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98 'uri': self.uri, |
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99 'dev': self.dev, |
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100 'baudrate': self.baudrate, |
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101 'devices': [d.description() for d in self._devs], |
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102 } |
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103 |
| 164 | 104 def open(self): |
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105 self.ser = LoggingSerial(port=self.dev, baudrate=self.baudrate, |
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106 timeout=2) |
| 164 | 107 |
| 108 def startPolling(self): | |
| 109 task.LoopingCall(self._poll).start(.5) | |
| 110 | |
| 111 def _poll(self): | |
| 112 """ | |
| 113 even boards with no inputs need some polling to see if they're | |
| 114 still ok | |
| 115 """ | |
| 116 try: | |
| 117 self._pollWork() | |
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118 except serial.SerialException: |
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119 reactor.crash() |
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120 raise |
| 164 | 121 except Exception as e: |
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122 import traceback; traceback.print_exc() |
| 164 | 123 log.warn("poll: %r" % e) |
| 124 | |
| 125 def _pollWork(self): | |
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126 t1 = time.time() |
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127 self.ser.write("\x60\x00") # "poll everything" |
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128 for i in self._polledDevs: |
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129 now = time.time() |
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130 new = i.readFromPoll(self.ser.read) |
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131 if isinstance(new, dict): # new style |
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132 oneshot = new['oneshot'] |
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133 new = new['latest'] |
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134 else: |
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135 oneshot = None |
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136 prev = self._statementsFromInputs.get(i.uri, []) |
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137 if new or prev: |
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138 self._statementsFromInputs[i.uri] = new |
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139 # it's important that quads from different devices |
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140 # don't clash, since that can lead to inconsistent |
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141 # patches (e.g. |
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142 # dev1 changes value from 1 to 2; |
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143 # dev2 changes value from 2 to 3; |
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144 # dev1 changes from 2 to 4 but this patch will |
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145 # fail since the '2' statement is gone) |
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146 self.masterGraph.patch(Patch.fromDiff(inContext(prev, i.uri), |
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147 inContext(new, i.uri))) |
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148 if oneshot: |
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149 self._sendOneshot(oneshot) |
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150 self._lastPollTime[i.uri] = now |
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151 |
| 164 | 152 #plus statements about succeeding or erroring on the last poll |
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153 byte = self.ser.read(1) |
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154 if byte != 'x': |
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155 raise ValueError("after poll, got %x instead of 'x'" % byte) |
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156 elapsed = time.time() - t1 |
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157 if elapsed > 1.0: |
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158 log.warn('poll took %.1f seconds' % elapsed) |
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159 self._exportToGraphite() |
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160 |
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161 def _sendOneshot(self, oneshot): |
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162 body = (' '.join('%s %s %s .' % (s.n3(), p.n3(), o.n3()) |
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163 for s,p,o in oneshot)).encode('utf8') |
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164 bang6 = 'fcb8:4119:fb46:96f8:8b07:1260:0f50:fcfa' |
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165 fetch(method='POST', |
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166 url='http://[%s]:9071/oneShot' % bang6, |
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167 headers={'Content-Type': ['text/n3']}, postdata=body, |
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168 timeout=5) |
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169 |
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213
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170 def _exportToGraphite(self): |
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171 # note this is writing way too often- graphite is storing at a lower res |
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172 now = time.time() |
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173 # 20 sec is not precise; just trying to reduce wifi traffic |
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174 if getattr(self, 'lastGraphiteExport', 0) + 20 > now: |
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175 return |
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176 self.lastGraphiteExport = now |
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177 log.debug('graphite export:') |
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178 # objects of these statements are suitable as graphite values. |
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179 graphitePredicates = {ROOM['temperatureF']} |
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180 # bug: one sensor can have temp and humid- this will be ambiguous |
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181 for s, graphiteName in self.configGraph.subject_objects(ROOM['graphiteName']): |
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182 for group in self._statementsFromInputs.values(): |
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183 for stmt in group: |
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184 if stmt[0] == s and stmt[1] in graphitePredicates: |
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185 log.debug(' sending %s -> %s', stmt[0], graphiteName) |
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186 self._carbon.send(graphiteName, stmt[2].toPython(), now) |
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187 |
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188 def outputStatements(self, stmts): |
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189 unused = set(stmts) |
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190 for dev in self._devs: |
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191 stmtsForDev = [] |
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192 for pat in dev.outputPatterns(): |
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193 if [term is None for term in pat] != [False, False, True]: |
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194 raise NotImplementedError |
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195 for stmt in stmts: |
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196 if stmt[:2] == pat[:2]: |
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197 stmtsForDev.append(stmt) |
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198 unused.discard(stmt) |
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199 if stmtsForDev: |
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200 log.info("output goes to action handler for %s" % dev.uri) |
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201 self.ser.write("\x60" + chr(self._devCommandNum[dev.uri])) |
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202 dev.sendOutput(stmtsForDev, self.ser.write, self.ser.read) |
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203 if self.ser.read(1) != 'k': |
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204 raise ValueError( |
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205 "%s sendOutput/generateActionCode didn't use " |
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206 "matching output bytes" % dev.__class__) |
|
230
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207 # Dev *could* change hostStatements at any time, and |
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208 # we're not currently tracking that, but the usual is |
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209 # to change them in response to sendOutput so this |
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210 # should be good enough. The right answer is to give |
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211 # each dev the masterGraph for it to write to. |
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212 self.syncMasterGraphToHostStatements(dev) |
|
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213 log.info("output and masterGraph sync complete") |
|
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214 if unused: |
|
218
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215 log.info("Board %s doesn't care about these statements:", self.uri) |
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216 for s in unused: |
|
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217 log.warn("%r", s) |
|
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218 |
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219 def syncMasterGraphToHostStatements(self, dev): |
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220 hostStmtCtx = URIRef(dev.uri + '/host') |
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221 newQuads = inContext(dev.hostStatements(), hostStmtCtx) |
|
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222 p = self.masterGraph.patchSubgraph(hostStmtCtx, newQuads) |
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223 log.debug("patch master with these host stmts %s", p) |
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224 |
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225 def staticStmts(self): |
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226 return [(HOST[hostname], ROOM['connectedTo'], self.uri, CTX)] |
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227 |
| 164 | 228 def generateArduinoCode(self): |
|
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229 code = write_arduino_code.writeCode(self.baudrate, self._devs, |
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230 self._devCommandNum) |
| 229 | 231 code = write_arduino_code.indent(code) |
|
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232 cksum = hashlib.sha1(code).hexdigest() |
|
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233 code = code.replace('CODE_CHECKSUM', cksum) |
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234 return code, cksum |
|
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235 |
|
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236 def _readBoardChecksum(self, length): |
|
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237 # this is likely right after reset, so it might take 2 seconds |
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238 for tries in range(6): |
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239 self.ser.write("\x60\x01") |
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240 try: |
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241 return self.ser.read(length) |
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242 except ValueError: |
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243 if tries == 5: |
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244 raise |
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245 time.sleep(.5) |
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246 raise ValueError |
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247 |
|
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248 def _boardIsCurrent(self, currentChecksum): |
|
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249 try: |
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250 boardCksum = self._readBoardChecksum(len(currentChecksum)) |
|
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251 if boardCksum == currentChecksum: |
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252 log.info("board has current code (%s)" % currentChecksum) |
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253 return True |
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254 else: |
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255 log.info("board responds with incorrect code version") |
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256 except Exception as e: |
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257 log.info("can't get code version from board: %r" % e) |
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258 return False |
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259 |
| 164 | 260 def deployToArduino(self): |
|
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261 code, cksum = self.generateArduinoCode() |
|
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262 |
|
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263 if self._boardIsCurrent(cksum): |
|
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264 return |
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265 |
| 164 | 266 try: |
| 267 if hasattr(self, 'ser'): | |
| 268 self.ser.close() | |
| 269 workDir = tempfile.mkdtemp(prefix='arduinoNode_board_deploy') | |
| 270 try: | |
| 271 self._arduinoMake(workDir, code) | |
| 272 finally: | |
| 273 shutil.rmtree(workDir) | |
| 274 finally: | |
| 275 self.open() | |
|
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276 |
| 164 | 277 def _arduinoMake(self, workDir, code): |
| 278 with open(workDir + '/makefile', 'w') as makefile: | |
| 229 | 279 makefile.write(write_arduino_code.writeMakefile( |
| 280 dev=self.dev, | |
|
230
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diff
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281 tag=self.configGraph.value(self.uri, ROOM['boardTag']), |
| 229 | 282 allLibs=sum((d.generateArduinoLibs() for d in self._devs), []))) |
| 164 | 283 |
| 284 with open(workDir + '/main.ino', 'w') as main: | |
| 285 main.write(code) | |
| 286 | |
| 287 subprocess.check_call(['make', 'upload'], cwd=workDir) | |
| 288 | |
|
230
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|
289 |
|
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290 def currentGraph(self): |
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diff
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|
291 g = Graph() |
| 164 | 292 |
| 293 | |
|
230
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diff
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294 for dev in self._devs: |
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295 for stmt in dev.hostStatements(): |
| 164 | 296 g.add(stmt) |
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297 return g |
| 164 | 298 |
| 299 class Dot(cyclone.web.RequestHandler): | |
| 300 def get(self): | |
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301 configGraph = self.settings.config.graph |
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302 dot = dotrender.render(configGraph, self.settings.boards) |
| 164 | 303 self.write(dot) |
| 304 | |
| 305 class ArduinoCode(cyclone.web.RequestHandler): | |
| 306 def get(self): | |
| 307 board = [b for b in self.settings.boards if | |
| 308 b.uri == URIRef(self.get_argument('board'))][0] | |
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309 self.set_header('Content-Type', 'text/plain') |
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310 code, cksum = board.generateArduinoCode() |
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311 self.write(code) |
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312 |
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313 def rdfGraphBody(body, headers): |
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314 g = Graph() |
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315 g.parse(StringInputSource(body), format='nt') |
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316 return g |
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317 |
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318 class OutputPage(cyclone.web.RequestHandler): |
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319 def post(self): |
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320 # for old ui; use PUT instead |
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321 stmts = list(rdfGraphBody(self.request.body, self.request.headers)) |
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322 for b in self.settings.boards: |
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323 b.outputStatements(stmts) |
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324 |
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325 def put(self): |
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326 subj = URIRef(self.get_argument('s')) |
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327 pred = URIRef(self.get_argument('p')) |
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328 |
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329 turtleLiteral = self.request.body |
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330 try: |
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331 obj = Literal(float(turtleLiteral)) |
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332 except ValueError: |
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333 obj = Literal(turtleLiteral) |
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334 |
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335 stmt = (subj, pred, obj) |
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336 for b in self.settings.boards: |
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337 b.outputStatements([stmt]) |
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338 |
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339 |
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340 class Boards(cyclone.web.RequestHandler): |
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341 def get(self): |
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342 self.set_header('Content-type', 'application/json') |
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343 self.write(json.dumps({ |
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344 'host': hostname, |
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345 'boards': [b.description() for b in self.settings.boards] |
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346 }, indent=2)) |
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347 |
| 164 | 348 def currentSerialDevices(): |
| 349 log.info('find connected boards') | |
| 350 return glob.glob('/dev/serial/by-id/*') | |
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351 |
| 164 | 352 def main(): |
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353 arg = docopt(""" |
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354 Usage: arduinoNode.py [options] |
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355 |
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356 -v Verbose |
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357 """) |
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358 log.setLevel(logging.WARN) |
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359 if arg['-v']: |
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360 from twisted.python import log as twlog |
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361 twlog.startLogging(sys.stdout) |
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362 |
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363 log.setLevel(logging.DEBUG) |
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364 |
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365 masterGraph = PatchableGraph() |
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366 config = Config(masterGraph) |
| 164 | 367 current = currentSerialDevices() |
| 368 | |
| 369 boards = [] | |
| 370 for dev, board in config.serialDevices().items(): | |
| 371 if str(dev) not in current: | |
| 372 continue | |
| 373 log.info("we have board %s connected at %s" % (board, dev)) | |
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374 b = Board(dev, config.graph, masterGraph, board) |
| 164 | 375 boards.append(b) |
| 376 | |
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377 for b in boards: |
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378 b.deployToArduino() |
| 164 | 379 |
| 380 log.info('open boards') | |
| 381 for b in boards: | |
| 382 b.startPolling() | |
| 383 | |
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384 |
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385 reactor.listenTCP(9059, cyclone.web.Application([ |
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386 (r"/()", cyclone.web.StaticFileHandler, { |
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387 "path": "static", "default_filename": "index.html"}), |
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388 (r'/static/(.*)', cyclone.web.StaticFileHandler, {"path": "static"}), |
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389 (r'/boards', Boards), |
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390 (r"/graph", CycloneGraphHandler, {'masterGraph': masterGraph}), |
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391 (r"/graph/events", CycloneGraphEventsHandler, {'masterGraph': masterGraph}), |
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392 (r'/output', OutputPage), |
| 164 | 393 (r'/arduinoCode', ArduinoCode), |
| 394 (r'/dot', Dot), | |
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395 ], config=config, boards=boards), interface='::') |
| 164 | 396 reactor.run() |
| 397 | |
| 398 main() |