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annotate service/piNode/piNode.py @ 220:fb23df31b642

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ipv6 and some refactor Ignore-this: 8ae5a78848fac996ad777eb74a48e656
author drewp@bigasterisk.com
date Sun, 03 Jan 2016 02:32:46 -0800
parents e052416a2290
children 666e0e756ce6
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1 from __future__ import division
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2 import sys, logging, socket, json
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3 import cyclone.web
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4 from rdflib import Namespace, URIRef, Literal, Graph, RDF
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5 from rdflib.parser import StringInputSource
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6 from twisted.internet import reactor, task
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7 from docopt import docopt
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8 logging.basicConfig(level=logging.DEBUG)
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9 sys.path.append("/my/site/magma")
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10 sys.path.append("../../../../site/magma")
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11
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12 from stategraph import StateGraph
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13 sys.path.append('/home/pi/dim/PIGPIO')
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14 try:
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15 import pigpio
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16 except ImportError:
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17 class pigpio(object):
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18 @staticmethod
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19 def pi():
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20 return None
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21
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22 import devices
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23
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24 log = logging.getLogger()
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25 logging.getLogger('serial').setLevel(logging.WARN)
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26 ROOM = Namespace('http://projects.bigasterisk.com/room/')
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27 HOST = Namespace('http://bigasterisk.com/ruler/host/')
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28
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29 hostname = socket.gethostname()
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30
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31 class Config(object):
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32 def __init__(self):
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33 self.graph = Graph()
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34 log.info('read config')
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35 self.graph.parse('config.n3', format='n3')
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36 self.graph.bind('', ROOM) # not working
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37 self.graph.bind('rdf', RDF)
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38
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39 class GraphPage(cyclone.web.RequestHandler):
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40 def get(self):
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41 g = StateGraph(ctx=ROOM['pi/%s' % hostname])
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42
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43 for stmt in self.settings.board.currentGraph():
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44 g.add(stmt)
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45
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46 if self.get_argument('config', 'no') == 'yes':
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47 for stmt in self.settings.config.graph:
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48 g.add(stmt)
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49
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50 self.set_header('Content-type', 'application/x-trig')
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51 self.write(g.asTrig())
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52
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53 class Board(object):
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54 """similar to arduinoNode.Board but without the communications stuff"""
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55 def __init__(self, graph, uri, onChange):
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56 self.graph, self.uri = graph, uri
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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
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62 def startPolling(self):
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63 task.LoopingCall(self._poll).start(.5)
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64
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65 def _poll(self):
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66 for i in self._devs:
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67 self._statementsFromInputs[i.uri] = i.poll()
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68
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69 def outputStatements(self, stmts):
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70 unused = set(stmts)
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71 for dev in self._devs:
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72 stmtsForDev = []
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73 for pat in dev.outputPatterns():
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74 if [term is None for term in pat] != [False, False, True]:
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75 raise NotImplementedError
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76 for stmt in stmts:
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77 if stmt[:2] == pat[:2]:
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78 stmtsForDev.append(stmt)
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79 unused.discard(stmt)
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80 if stmtsForDev:
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81 log.info("output goes to action handler for %s" % dev.uri)
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82 dev.sendOutput(stmtsForDev)
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83 log.info("success")
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84 if unused:
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85 log.warn("No devices cared about these statements:")
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86 for s in unused:
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87 log.warn(repr(s))
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88
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89 def currentGraph(self):
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90 g = Graph()
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91
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92 g.add((HOST[socket.gethostname()], ROOM['connectedTo'], self.uri))
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93
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94 for si in self._statementsFromInputs.values():
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95 for s in si:
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96 g.add(s)
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97 return g
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98
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99 def description(self):
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100 """for web page"""
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101 return {
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102 'uri': self.uri,
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103 'devices': [d.description() for d in self._devs],
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104 'graph': 'http://sticker:9059/graph', #todo
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105 }
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106
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107 def rdfGraphBody(body, headers):
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108 g = Graph()
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109 g.parse(StringInputSource(body), format='nt')
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110 return g
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111
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112 class OutputPage(cyclone.web.RequestHandler):
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113 def put(self):
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114 arg = self.request.arguments
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115 if arg.get('s') and arg.get('p'):
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116 subj = URIRef(arg['s'][-1])
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117 pred = URIRef(arg['p'][-1])
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118 turtleLiteral = self.request.body
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119 try:
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120 obj = Literal(float(turtleLiteral))
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121 except ValueError:
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122 obj = Literal(turtleLiteral)
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123 stmt = (subj, pred, obj)
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124 else:
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125 g = rdfGraphBody(self.request.body, self.request.headers)
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126 assert len(g) == 1, len(g)
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127 stmt = g.triples((None, None, None)).next()
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128
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129 self.settings.board.outputStatements([stmt])
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130
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131 class Boards(cyclone.web.RequestHandler):
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132 def get(self):
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133 self.set_header('Content-type', 'application/json')
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134 self.write(json.dumps({
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135 'boards': [self.settings.board.description()]
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136 }, indent=2))
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137
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138 def main():
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139 arg = docopt("""
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140 Usage: piNode.py [options]
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141
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142 -v Verbose
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143 """)
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144 log.setLevel(logging.WARN)
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145 if arg['-v']:
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146 from twisted.python import log as twlog
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147 twlog.startLogging(sys.stdout)
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148
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149 log.setLevel(logging.DEBUG)
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150
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151 config = Config()
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152
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153 def onChange():
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154 # notify reasoning
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155 pass
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156
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157 thisBoard = URIRef('http://bigasterisk.com/homeauto/node2')
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158
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159 board = Board(config.graph, thisBoard, onChange)
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160 board.startPolling()
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161
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162 reactor.listenTCP(9059, cyclone.web.Application([
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163 (r"/()", cyclone.web.StaticFileHandler, {
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164 "path": "../arduinoNode/static", "default_filename": "index.html"}),
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165 (r'/static/(.*)', cyclone.web.StaticFileHandler, {"path": "../arduinoNode/static"}),
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166 (r"/graph", GraphPage),
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167 (r'/output', OutputPage),
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168 (r'/boards', Boards),
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169 #(r'/dot', Dot),
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170 ], config=config, board=board, debug=arg['-v']), interface='::')
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171 reactor.run()
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172
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173 main()