annotate service/piNode/piNode.py @ 183:634d6e477953

get piNode working, for motionsensor at least Ignore-this: 53f16373acb0613e01fdf3e98d8425f2
author drewp@bigasterisk.com
date Sun, 31 May 2015 22:53:21 -0700
parents 9fff29ebca71
children e052416a2290
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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 twisted.internet import reactor, task
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6 from docopt import docopt
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7 logging.basicConfig(level=logging.DEBUG)
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8 sys.path.append("/my/site/magma")
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9 sys.path.append("../../../../site/magma")
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10
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11 from stategraph import StateGraph
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12 sys.path.append('/home/pi/dim/PIGPIO')
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13 try:
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14 import pigpio
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15 except ImportError:
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16 class pigpio(object):
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17 @staticmethod
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18 def pi():
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19 return None
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20
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21 import devices
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22
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23 log = logging.getLogger()
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24 logging.getLogger('serial').setLevel(logging.WARN)
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25 ROOM = Namespace('http://projects.bigasterisk.com/room/')
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26 HOST = Namespace('http://bigasterisk.com/ruler/host/')
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27
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28 hostname = socket.gethostname()
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29
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30 class Config(object):
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31 def __init__(self):
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32 self.graph = Graph()
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33 log.info('read config')
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34 self.graph.parse('config.n3', format='n3')
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35 self.graph.bind('', ROOM) # not working
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36 self.graph.bind('rdf', RDF)
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37
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38 class GraphPage(cyclone.web.RequestHandler):
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39 def get(self):
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40 g = StateGraph(ctx=ROOM['pi/%s' % hostname])
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41
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42 for stmt in self.settings.board.currentGraph():
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43 g.add(stmt)
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44
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45 if self.get_argument('config', 'no') == 'yes':
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46 for stmt in self.settings.config.graph:
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47 g.add(stmt)
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48
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49 self.set_header('Content-type', 'application/x-trig')
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50 self.write(g.asTrig())
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51
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52 class Board(object):
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53 """similar to arduinoNode.Board but without the communications stuff"""
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54 def __init__(self, graph, uri, onChange):
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55 self.graph, self.uri = graph, uri
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56 self.pi = pigpio.pi()
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57 self._devs = devices.makeDevices(graph, self.uri, self.pi)
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58 log.debug('found %s devices', len(self._devs))
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59 self._statementsFromInputs = {} # input device uri: latest statements
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60
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61 def startPolling(self):
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62 task.LoopingCall(self._poll).start(.5)
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63
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64 def _poll(self):
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65 for i in self._devs:
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66 self._statementsFromInputs[i.uri] = i.poll()
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67
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68 def outputStatements(self, stmts):
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69 unused = set(stmts)
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70 for dev in self._devs:
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71 stmtsForDev = []
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72 for pat in dev.outputPatterns():
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73 if [term is None for term in pat] != [False, False, True]:
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74 raise NotImplementedError
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75 for stmt in stmts:
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76 if stmt[:2] == pat[:2]:
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77 stmtsForDev.append(stmt)
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78 unused.discard(stmt)
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79 if stmtsForDev:
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80 log.info("output goes to action handler for %s" % dev.uri)
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81 dev.sendOutput(stmtsForDev)
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82 log.info("success")
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83 if unused:
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84 log.warn("No devices cared about these statements:")
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85 for s in unused:
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86 log.warn(repr(s))
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87
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88 def currentGraph(self):
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89 g = Graph()
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90
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91 g.add((HOST[socket.gethostname()], ROOM['connectedTo'], self.uri))
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93 for si in self._statementsFromInputs.values():
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94 for s in si:
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95 g.add(s)
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96 return g
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97
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98 def description(self):
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99 """for web page"""
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100 return {
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101 'uri': self.uri,
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102 'devices': [d.description() for d in self._devs],
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103 'graph': 'http://sticker:9059/graph', #todo
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104 }
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105
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106
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107 class OutputPage(cyclone.web.RequestHandler):
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108 def put(self):
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109 subj = URIRef(self.get_argument('s'))
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110 pred = URIRef(self.get_argument('p'))
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111
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112 turtleLiteral = self.request.body
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113 try:
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114 obj = Literal(float(turtleLiteral))
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115 except ValueError:
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116 obj = Literal(turtleLiteral)
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117
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118 stmt = (subj, pred, obj)
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119 self.settings.board.outputStatements([stmt])
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120
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121 class Boards(cyclone.web.RequestHandler):
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122 def get(self):
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123 self.set_header('Content-type', 'application/json')
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124 self.write(json.dumps({
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125 'boards': [self.settings.board.description()]
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126 }, indent=2))
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127
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128 def main():
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129 arg = docopt("""
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130 Usage: piNode.py [options]
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131
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132 -v Verbose
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133 """)
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134 log.setLevel(logging.WARN)
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135 if arg['-v']:
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136 from twisted.python import log as twlog
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137 twlog.startLogging(sys.stdout)
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138
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139 log.setLevel(logging.DEBUG)
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140
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141 config = Config()
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142
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143 def onChange():
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144 # notify reasoning
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145 pass
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146
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147 thisBoard = URIRef('http://bigasterisk.com/homeauto/node2')
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148
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149 board = Board(config.graph, thisBoard, onChange)
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150 board.startPolling()
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151
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152 reactor.listenTCP(9059, cyclone.web.Application([
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153 (r"/()", cyclone.web.StaticFileHandler, {
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154 "path": "../arduinoNode/static", "default_filename": "index.html"}),
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155 (r'/static/(.*)', cyclone.web.StaticFileHandler, {"path": "../arduinoNode/static"}),
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156 (r"/graph", GraphPage),
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157 (r'/output', OutputPage),
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158 (r'/boards', Boards),
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159 #(r'/dot', Dot),
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160 ], config=config, board=board))
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161 reactor.run()
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162
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163 main()