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greplin.scales api fix Ignore-this: b622bd759e9c0011fd427c2c72333d45
author Drew Perttula <drewp@bigasterisk.com>
date Mon, 02 Jun 2014 01:21:03 +0000
parents 473db8bebb8f
children dc474426845d
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1 #!bin/python
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2 from __future__ import division
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3 from run_local import log
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4 from twisted.internet import reactor
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5 from twisted.internet.defer import inlineCallbacks, returnValue
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6 import cyclone.web, cyclone.websocket, cyclone.httpclient
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7 import sys, optparse, logging, subprocess, json, time, traceback
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8 from rdflib import URIRef, Literal
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9
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10 sys.path.append(".")
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11 from light9 import networking, showconfig, Submaster, dmxclient
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12 from light9.rdfdb.syncedgraph import SyncedGraph
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13 from light9.namespaces import L9, RDF, RDFS
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14 from light9.rdfdb.patch import Patch
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15 from light9.effecteval.effect import EffectNode
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16 from light9.greplin_cyclone import StatsForCyclone
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17 from greplin import scales
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18
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19 from lib.cycloneerr import PrettyErrorHandler
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20
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21 class EffectEdit(PrettyErrorHandler, cyclone.web.RequestHandler):
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22 def get(self):
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23 self.write(open("light9/effecteval/effect.html").read())
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24 def delete(self):
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25 graph = self.settings.graph
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26 uri = URIRef(self.get_argument('uri'))
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27 with graph.currentState(tripleFilter=(None, L9['effect'], uri)) as g:
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28 song = ctx = list(g.subjects(L9['effect'], uri))[0]
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29 self.settings.graph.patch(Patch(delQuads=[
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30 (song, L9['effect'], uri, ctx),
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31 ]))
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32
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33 class SongEffects(PrettyErrorHandler, cyclone.web.RequestHandler):
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34 def post(self):
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35 song = URIRef(self.get_argument('uri'))
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36 drop = URIRef(self.get_argument('drop'))
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37 ctx = song
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38 graph = self.settings.graph
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39 effect = graph.sequentialUri(song + "/effect/e-")
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40 curve = graph.sequentialUri(song + "/curve/c-")
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41
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42 with graph.currentState(
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43 tripleFilter=(drop, RDFS.label, None)) as g:
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44 dropSubLabel = g.label(drop)
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45
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46 graph.patch(Patch(addQuads=[
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47 (song, L9['curve'], curve, ctx),
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48 (song, L9['effect'], effect, ctx),
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49 (effect, RDF.type, L9['Effect'], ctx),
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50 (effect, L9['code'],
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51 Literal('out = sub(%s, intensity=%s)' % (drop.n3(), curve.n3())),
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52 ctx),
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53 (curve, RDF.type, L9['Curve'], ctx),
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54 (curve, RDFS.label, Literal('sub %s' % dropSubLabel), ctx),
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55 (curve, L9['points'], Literal('0 0'), ctx),
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56 ]))
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57
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58 class SongEffectsUpdates(cyclone.websocket.WebSocketHandler):
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59 def connectionMade(self, *args, **kwargs):
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60 self.graph = self.settings.graph
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61 self.graph.addHandler(self.updateClient)
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62
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63 def updateClient(self):
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64 # todo: abort if client is gone
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65 playlist = self.graph.value(showconfig.showUri(), L9['playList'])
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66 songs = list(self.graph.items(playlist))
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67 out = []
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68 for s in songs:
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69 out.append({'uri': s, 'label': self.graph.label(s)})
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70 out[-1]['effects'] = [{'uri': uri} for uri in sorted(self.graph.objects(s, L9['effect']))]
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71 self.sendMessage({'songs': out})
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72
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73
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74 class EffectUpdates(cyclone.websocket.WebSocketHandler):
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75 """
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76 stays alive for the life of the effect page
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77 """
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78 def connectionMade(self, *args, **kwargs):
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79 log.info("websocket opened")
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80 self.uri = URIRef(self.get_argument('uri'))
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81 self.sendMessage({'hello': repr(self)})
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82
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83 self.graph = self.settings.graph
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84 self.graph.addHandler(self.updateClient)
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85
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86 def updateClient(self):
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87 # todo: if client has dropped, abort and don't get any more
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88 # graph updates
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89 self.sendMessage({'code': self.graph.value(self.uri, L9['code'])})
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90
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91 def connectionLost(self, reason):
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92 log.info("websocket closed")
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93
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94 def messageReceived(self, message):
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95 log.info("got message %s" % message)
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96 # write a patch back to the graph
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97
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98
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99 class EffectEval(PrettyErrorHandler, cyclone.web.RequestHandler):
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100 @inlineCallbacks
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101 def get(self):
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102 # return dmx list for that effect
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103 uri = URIRef(self.get_argument('uri'))
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104 response = yield cyclone.httpclient.fetch(
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105 networking.musicPlayer.path('time'))
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106 songTime = json.loads(response.body)['t']
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107
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108 node = EffectNode(self.settings.graph, uri)
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109 outSub = node.eval(songTime)
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110 self.write(json.dumps(outSub.get_dmx_list()))
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111
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112
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113 # Completely not sure where the effect background loop should
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114 # go. Another process could own it, and get this request repeatedly:
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115 class SongEffectsEval(PrettyErrorHandler, cyclone.web.RequestHandler):
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116 def get(self):
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117 song = URIRef(self.get_argument('song'))
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118 effects = effectsForSong(self.settings.graph, song)
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119 raise NotImplementedError
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120 self.write(maxDict(effectDmxDict(e) for e in effects))
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121 # return dmx dict for all effects in the song, already combined
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122
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123 class EffectLoop(object):
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124 """maintains a collection of the current EffectNodes, gets time from
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125 music player, sends dmx"""
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126 def __init__(self, graph, stats):
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127 self.graph, self.stats = graph, stats
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128 self.currentSong = None
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129 self.currentEffects = []
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130 self.graph.addHandler(self.setEffects)
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131 self.period = 1 / 30
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132 self.coastSecs = .3 # main reason to keep this low is to notice play/pause
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133
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134 self.songTimeFromRequest = 0
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135 self.requestTime = 0 # unix sec for when we fetched songTime
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136 reactor.callLater(self.period, self.sendLevels)
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137
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138 def setEffects(self):
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139 self.currentEffects = []
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140 if self.currentSong is None:
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141 return
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142
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143 for effectUri in self.graph.objects(self.currentSong, L9['effect']):
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144 self.currentEffects.append(EffectNode(self.graph, effectUri))
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145
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146 @inlineCallbacks
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147 def getSongTime(self):
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148 now = time.time()
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149 if now - self.requestTime < self.coastSecs:
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150 estimated = self.songTimeFromRequest
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151 if self.currentSong is not None and self.currentPlaying:
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152 estimated += now - self.requestTime
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153 returnValue((estimated, self.currentSong))
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154 else:
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155 response = json.loads((yield cyclone.httpclient.fetch(
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156 networking.musicPlayer.path('time'))).body)
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157 self.requestTime = now
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158 self.currentPlaying = response['playing']
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159 self.songTimeFromRequest = response['t']
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160 returnValue(
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161 (response['t'], (response['song'] and URIRef(response['song']))))
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162
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163 @inlineCallbacks
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164 def sendLevels(self):
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165 t1 = time.time()
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166 try:
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167 with self.stats.sendLevels.time():
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168 with self.stats.getMusic.time():
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169 songTime, song = yield self.getSongTime()
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170
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171 if song != self.currentSong:
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172 self.currentSong = song
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173 # this may be piling on the handlers
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174 self.graph.addHandler(self.setEffects)
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175
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176 if song is None:
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177 return
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178
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179 outSubs = []
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180 for e in self.currentEffects:
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181 outSubs.append(e.eval(songTime))
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182 out = Submaster.sub_maxes(*outSubs)
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183
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184 dmx = out.get_dmx_list()
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185
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186 if log.isEnabledFor(logging.DEBUG):
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187 log.debug("send dmx: %r", out.get_levels())
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188
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189 with self.stats.writeDmx.time():
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190 yield dmxclient.outputlevels(dmx, twisted=True)
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191
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192 elapsed = time.time() - t1
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193 dt = max(0, self.period - elapsed)
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194 except Exception:
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195 self.stats.errors += 1
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196 traceback.print_exc()
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197 dt = 1
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198
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199 reactor.callLater(dt, self.sendLevels)
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200
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201 class App(object):
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202 def __init__(self, show):
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203 self.show = show
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204 self.graph = SyncedGraph("effectEval")
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205 self.graph.initiallySynced.addCallback(self.launch)
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206
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207 self.stats = scales.collection('/',
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208 scales.PmfStat('sendLevels'),
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209 scales.PmfStat('getMusic'),
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210 scales.PmfStat('writeDmx'),
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211 scales.IntStat('errors'),
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212 )
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213
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214 def launch(self, *args):
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215 self.loop = EffectLoop(self.graph, self.stats)
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216
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217 SFH = cyclone.web.StaticFileHandler
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218 self.cycloneApp = cyclone.web.Application(handlers=[
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219 (r'/()', SFH,
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220 {'path': 'light9/effecteval', 'default_filename': 'index.html'}),
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221 (r'/effect', EffectEdit),
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222 (r'/(websocket\.js)', SFH, {'path': 'light9/rdfdb/web/'}),
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223 (r'/effect\.js', StaticCoffee, {'src': 'light9/effecteval/effect.coffee'}),
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224 (r'/index\.js', StaticCoffee, {'src': 'light9/effecteval/index.coffee'}),
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225 (r'/effectUpdates', EffectUpdates),
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226 (r'/songEffectsUpdates', SongEffectsUpdates),
1018
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227 (r'/static/(.*)', SFH, {'path': 'static/'}),
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228 (r'/effect/eval', EffectEval),
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229 (r'/songEffects', SongEffects),
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230 (r'/songEffects/eval', SongEffectsEval),
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231 (r'/stats', StatsForCyclone),
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232 ], debug=True, graph=self.graph, stats=self.stats)
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233 reactor.listenTCP(networking.effectEval.port, self.cycloneApp)
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234 log.info("listening on %s" % networking.effectEval.port)
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235
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236 class StaticCoffee(PrettyErrorHandler, cyclone.web.RequestHandler):
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237 def initialize(self, src):
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238 super(StaticCoffee, self).initialize()
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239 self.src = src
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240 def get(self):
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241 self.set_header('Content-Type', 'application/javascript')
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242 self.write(subprocess.check_output([
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243 '/usr/bin/coffee', '--compile', '--print', self.src]))
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244
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245
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246 if __name__ == "__main__":
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247 parser = optparse.OptionParser()
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248 parser.add_option('--show',
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249 help='show URI, like http://light9.bigasterisk.com/show/dance2008',
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250 default=showconfig.showUri())
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251 parser.add_option("-v", "--verbose", action="store_true",
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252 help="logging.DEBUG")
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253 parser.add_option("--twistedlog", action="store_true",
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254 help="twisted logging")
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255 (options, args) = parser.parse_args()
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256
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257 log.setLevel(logging.DEBUG if options.verbose else logging.INFO)
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258
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diff changeset
259 if not options.show:
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260 raise ValueError("missing --show http://...")
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261
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262 app = App(URIRef(options.show))
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263 if options.twistedlog:
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264 from twisted.python import log as twlog
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265 twlog.startLogging(sys.stderr)
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266 reactor.run()