Mercurial > templog
annotate web/log.py @ 260:6fb9d5f654ff
increase waiter timeout
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Tue, 09 Jun 2015 23:37:49 +0800 |
| parents | 0a1b642e3086 |
| children | 03e540c3ec24 |
| rev | line source |
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| 78 | 1 # -*- coding: utf-8 -*- |
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2 #:vim:et:ts=4:sts=4:sw=4: |
| 27 | 3 import rrdtool |
| 4 import os | |
| 29 | 5 import os.path |
| 27 | 6 import sys |
| 29 | 7 import glob |
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8 import hashlib |
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9 import tempfile |
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10 import time |
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11 import syslog |
| 44 | 12 import sqlite3 |
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13 import traceback |
| 67 | 14 import datetime |
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15 import struct |
| 77 | 16 import binascii |
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17 import json |
| 194 | 18 import subprocess |
| 29 | 19 from colorsys import hls_to_rgb |
| 27 | 20 |
| 28 | 21 import config |
| 191 | 22 import atomicfile |
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23 import settings |
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24 |
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25 fridge_settings = settings.Settings() |
| 27 | 26 |
| 27 def sensor_rrd_path(s): | |
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28 return '%s/sensor_%s.rrd' % (config.DATA_PATH, str(s)) |
| 27 | 29 |
| 29 | 30 # returns (path, sensor_name) tuples |
| 31 def all_sensors(): | |
| 32 return [(r, os.path.basename(r[:-4])) | |
| 33 for r in glob.glob('%s/*.rrd' % config.DATA_PATH)] | |
| 34 | |
| 27 | 35 def create_rrd(sensor_id): |
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36 # start date of 10 seconds into 1970 is used so that we can |
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37 # update with prior values straight away. |
| 61 | 38 if 'voltage' in sensor_id: |
| 63 | 39 args = [ |
| 40 '--step', '3600', | |
| 41 'DS:temp:GAUGE:7200:1:10', | |
| 42 'RRA:AVERAGE:0.5:1:87600'] | |
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43 elif 'fridge_on' in sensor_id: |
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44 args = [ |
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45 '--step', '300', |
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46 'DS:temp:GAUGE:600:-100:500', |
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47 'RRA:LAST:0.5:1:1051200'] |
| 61 | 48 else: |
| 63 | 49 args = [ |
| 50 '--step', '300', | |
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51 'DS:temp:GAUGE:600:-100:500', |
| 61 | 52 'RRA:AVERAGE:0.5:1:1051200'] |
| 27 | 53 |
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54 print>>sys.stderr, sensor_rrd_path(sensor_id) |
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55 |
| 61 | 56 rrdtool.create(sensor_rrd_path(sensor_id), |
| 63 | 57 '--start', 'now-60d', |
| 61 | 58 *args) |
| 29 | 59 |
| 60 # stolen from viewmtn, stolen from monotone-viz | |
| 61 def colour_from_string(str): | |
| 62 def f(off): | |
| 63 return ord(hashval[off]) / 256.0 | |
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64 hashval = hashlib.sha1(str).digest() |
| 29 | 65 hue = f(5) |
| 66 li = f(1) * 0.15 + 0.55 | |
| 67 sat = f(2) * 0.5 + .5 | |
| 68 return ''.join(["%.2x" % int(x * 256) for x in hls_to_rgb(hue, li, sat)]) | |
| 69 | |
| 70 def graph_png(start, length): | |
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71 os.environ['MATT_PNG_BODGE_COMPRESS'] = '4' |
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72 os.environ['MATT_PNG_BODGE_FILTER'] = 'paeth' |
| 29 | 73 rrds = all_sensors() |
| 74 | |
| 75 graph_args = [] | |
| 61 | 76 have_volts = False |
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77 |
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78 ## volts = temp * volts_div + volts_shift |
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79 #volts_div = 10 |
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80 #volts_shift = 2 |
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81 volts_div = 1 |
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82 volts_shift = 0 |
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83 |
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84 volts_mult = 1.0/volts_div |
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85 |
| 179 | 86 # (title, sensorline) pairs. |
| 87 sensor_lines = [] | |
| 88 | |
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89 wort_sensor = None |
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90 fridge_sensor = None |
| 29 | 91 for n, (rrdfile, sensor) in enumerate(rrds): |
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92 unit = None |
| 61 | 93 if 'avrtemp' in sensor: |
| 94 continue | |
| 95 if 'voltage' in sensor: | |
| 96 have_volts = True | |
| 97 vname = 'scalevolts' | |
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98 graph_args.append('DEF:%(vname)s=%(rrdfile)s:temp:AVERAGE:step=3600' % locals()) |
| 78 | 99 unit = 'V' |
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100 elif 'fridge_on' in sensor: |
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101 vname = 'fridge_on' |
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102 graph_args.append('DEF:raw%(vname)s=%(rrdfile)s:temp:LAST' % locals()) |
| 131 | 103 graph_args.append('CDEF:%(vname)s=raw%(vname)s,-0.2,*,3,+' % locals()) |
| 61 | 104 else: |
| 105 vname = 'temp%d' % n | |
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106 graph_args.append('DEF:raw%(vname)s=%(rrdfile)s:temp:AVERAGE' % locals()) |
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107 # limit max temp to 50 |
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108 graph_args.append('CDEF:%(vname)s=raw%(vname)s,38,GT,UNKN,raw%(vname)s,%(volts_mult)f,*,%(volts_shift)f,+,IF' % locals()) |
| 78 | 109 unit = '<span face="Liberation Serif">ยบ</span>C' |
| 110 | |
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111 format_last_value = None |
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112 if unit: |
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113 try: |
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114 last_value = float(rrdtool.info(rrdfile)['ds[temp].last_ds']) |
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115 format_last_value = ('%f' % last_value).rstrip('0').rstrip('.') + unit |
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116 except ValueError: |
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117 pass |
| 29 | 118 width = config.LINE_WIDTH |
| 119 legend = config.SENSOR_NAMES.get(sensor, sensor) | |
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120 colour = config.SENSOR_COLOURS.get(legend, colour_from_string(sensor)) |
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121 print_legend = '' |
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122 if legend in config.LEGEND_NAMES: |
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123 if format_last_value: |
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124 print_legend = ':%s (%s)' % (legend, format_last_value) |
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125 else: |
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126 print_legend = ":%s" % legend |
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127 sensor_lines.append( (legend, 'LINE%(width)f:%(vname)s#%(colour)s%(print_legend)s' % locals()) ) |
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128 if legend == 'Wort': |
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129 wort_sensor = vname |
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130 elif legend == 'Fridge': |
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131 fridge_sensor = vname |
| 179 | 132 |
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133 # calculated bits |
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134 colour = '000000' |
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135 graph_args.append('CDEF:wortdel=%(wort_sensor)s,PREV(%(wort_sensor)s),-' % locals()) |
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136 graph_args.append('CDEF:tempdel=%(wort_sensor)s,%(fridge_sensor)s,-' % locals()) |
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137 graph_args.append('CDEF:fermheat=wortdel,80,*,tempdel,0.9,*,+' % locals()) |
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138 graph_args.append('CDEF:trendfermheat=fermheat,7200,TRENDNAN' % locals()) |
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139 graph_args.append('CDEF:limitfermheat=trendfermheat,5,+,11,MIN,2,MAX' % locals()) |
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140 graph_args.append('LINE0.5:limitfermheat#%(colour)s' % locals()) |
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141 |
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142 # lines are done afterwards so they can be layered |
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143 sensor_lines.sort(key = lambda (legend, line): "Wort" in legend) |
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144 graph_args += (line for (legend, line) in sensor_lines) |
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145 |
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146 print>>sys.stderr, '\n'.join(graph_args) |
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147 |
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148 |
| 67 | 149 end = int(start+length) |
| 150 start = int(start) | |
| 151 | |
| 29 | 152 tempf = tempfile.NamedTemporaryFile() |
| 67 | 153 dateformat = '%H:%M:%S %Y-%m-%d' |
| 154 watermark = ("Now %s\t" | |
| 155 "Start %s\t" | |
| 156 "End %s" % ( | |
| 157 datetime.datetime.now().strftime(dateformat), | |
| 158 datetime.datetime.fromtimestamp(start).strftime(dateformat), | |
| 159 datetime.datetime.fromtimestamp(end).strftime(dateformat) )) | |
| 160 | |
| 161 args = [tempf.name, '-s', str(start), | |
| 162 '-e', str(end), | |
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163 '-w', str(config.GRAPH_WIDTH), |
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164 '-h', str(config.GRAPH_HEIGHT), |
| 29 | 165 '--slope-mode', |
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166 '--border', '0', |
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167 # '--vertical-label', 'Voltage', |
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168 '--y-grid', '%(volts_mult)f:1' % locals(), |
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169 '--dynamic-labels', |
| 56 | 170 '--grid-dash', '1:0', |
| 77 | 171 '--zoom', str(config.ZOOM), |
| 56 | 172 '--color', 'GRID#00000000', |
| 173 '--color', 'MGRID#aaaaaa', | |
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174 '--color', 'BACK#ffffff', |
| 67 | 175 '--disable-rrdtool-tag', |
| 78 | 176 '--pango-markup', |
| 67 | 177 '--watermark', watermark, |
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178 '--imgformat', 'PNG'] \ |
| 29 | 179 + graph_args |
| 67 | 180 args += ['--font', 'DEFAULT:12:%s' % config.GRAPH_FONT] |
| 181 args += ['--font', 'WATERMARK:10:%s' % config.GRAPH_FONT] | |
| 61 | 182 if have_volts: |
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183 volts_shift_div = volts_div * volts_shift |
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184 args += ['--right-axis', '%(volts_div)f:-%(volts_shift_div)f' % locals(), |
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185 # '--right-axis-format', '%.0lf', |
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186 # '--right-axis-label', 'Temperature' |
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187 ] |
| 61 | 188 |
| 191 | 189 #print>>sys.stderr, ' '.join("'%s'" % s for s in args) |
| 29 | 190 rrdtool.graph(*args) |
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191 #return tempf |
| 29 | 192 return tempf.read() |
| 193 | |
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194 def validate_value(m): |
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195 if m == 85: |
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196 return 'U' |
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197 else: |
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198 return '%f' % m |
| 125 | 199 |
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200 def sensor_update(sensor_id, measurements): |
| 27 | 201 try: |
| 202 open(sensor_rrd_path(sensor_id)) | |
| 203 except IOError, e: | |
| 204 create_rrd(sensor_id) | |
| 205 | |
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206 if measurements: |
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207 values = ['%d:%s' % (t, validate_value(m)) for (t, m) in measurements] |
| 27 | 208 |
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209 rrdfile = sensor_rrd_path(sensor_id) |
| 40 | 210 # XXX what to do here when it fails... |
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211 for v in values: |
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212 try: |
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213 rrdtool.update(rrdfile, v) |
| 63 | 214 except rrdtool.error, e: |
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215 print>>sys.stderr, "Bad rrdtool update '%s': %s" % (v, str(e)) |
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216 traceback.print_exc(file=sys.stderr) |
| 33 | 217 |
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218 # be paranoid |
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219 #f = file(rrdfile) |
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220 #os.fsync(f.fileno()) |
| 27 | 221 |
| 103 | 222 def debug_file(mode='r'): |
| 223 return open('%s/debug.log' % config.DATA_PATH, mode) | |
| 224 | |
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225 def record_debug(params): |
| 103 | 226 f = debug_file('a+') |
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227 f.write('===== %s =====\n' % time.strftime('%a, %d %b %Y %H:%M:%S')) |
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228 json.dump(params, f, sort_keys=True, indent=4) |
| 33 | 229 f.flush() |
| 230 return f | |
| 231 | |
| 103 | 232 def tail_debug_log(): |
| 233 f = debug_file() | |
| 234 f.seek(0, 2) | |
| 235 size = f.tell() | |
| 236 f.seek(max(0, size-30000)) | |
| 237 return '\n'.join(l.strip() for l in f.readlines()[-400:]) | |
| 238 | |
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239 def convert_ds18b20_12bit(reading): |
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240 value = struct.unpack('>h', binascii.unhexlify(reading))[0] |
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241 return value * 0.0625 |
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242 |
| 94 | 243 def time_rem(name, entries): |
| 244 val_ticks = int(entries[name]) | |
| 95 | 245 val_rem = int(entries['%s_rem' % name]) |
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246 tick_wake = int(entries['tick_wake']) + 1 |
| 94 | 247 tick_secs = int(entries['tick_secs']) |
| 248 return val_ticks + float(val_rem) * tick_secs / tick_wake | |
| 249 | |
| 191 | 250 def write_current_params(current_params): |
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251 fridge_settings.update(current_params) |
| 191 | 252 |
| 253 def read_current_params(): | |
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254 params, epochtag = fridge_settings.get() |
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255 return params |
| 191 | 256 |
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257 def parse(params): |
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258 |
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259 start_time = time.time() |
| 33 | 260 |
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261 debugf = record_debug(params) |
| 27 | 262 |
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263 remote_now = params['now'] |
| 27 | 264 |
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265 time_diff = start_time - remote_now |
| 27 | 266 |
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267 # readings is [ ({sensorname: value, ...}, time), ... ] |
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268 readings = params['readings'] |
| 27 | 269 |
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270 # measurements is {sensorname: [(time, value), ...], ...} |
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271 measurements = {} |
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272 for rs, t in readings: |
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273 real_t = t + time_diff |
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274 for s, v in rs.iteritems(): |
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275 measurements.setdefault(s, []).append((real_t, v)) |
| 61 | 276 |
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277 # one-off measurements here |
| 191 | 278 current_params = params['current_params'] |
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279 current_epoch = params['current_params_epoch'] |
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280 measurements['fridge_on'] = [ (time.time(), params['fridge_on']) ] |
| 191 | 281 measurements['fridge_setpoint'] = [ (time.time(), current_params['fridge_setpoint']) ] |
| 282 | |
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283 write_current_params(current_params, current_epoch) |
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284 |
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285 for s, vs in measurements.iteritems(): |
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286 sensor_update(s, vs) |
| 33 | 287 |
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288 timedelta = time.time() - start_time |
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289 debugf.write("Updated sensors in %.2f secs\n" % timedelta) |
| 33 | 290 debugf.flush() |
| 182 | 291 |
| 194 | 292 _FIELD_DEFAULTS = { |
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293 'fridge_setpoint': 16.0, |
| 194 | 294 'fridge_difference': 0.2, |
| 295 'overshoot_delay': 720, # 12 minutes | |
| 296 'overshoot_factor': 1, # ยบC | |
| 297 'disabled': False, | |
| 298 'nowort': True, | |
| 299 'fridge_range_lower': 3, | |
| 300 'fridge_range_upper': 3, | |
| 301 } | |
| 302 | |
| 182 | 303 def get_params(): |
| 304 | |
| 305 r = [] | |
| 191 | 306 |
| 307 vals = read_current_params() | |
| 308 | |
| 182 | 309 for k, v in _FIELD_DEFAULTS.iteritems(): |
| 194 | 310 n = {'name': k, 'value': type(v)(vals[k])} |
| 182 | 311 if type(v) is bool: |
| 312 kind = 'yesno' | |
| 313 else: | |
| 314 kind = 'number' | |
|
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315 if k == 'overshoot_delay': |
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316 n['unit'] = ' sec' |
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317 n['amount'] = 60 |
| 184 | 318 n['digits'] = 0; |
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319 else: |
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320 n['unit'] = 'ยบ' |
| 184 | 321 n['amount'] = 0.1; |
| 322 n['digits'] = 1; | |
| 182 | 323 n['kind'] = kind |
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324 n['title'] = k |
| 182 | 325 r.append(n) |
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326 |
| 182 | 327 return json.dumps(r, sort_keys=True, indent=4) |
| 185 | 328 |
| 194 | 329 def send_params(params): |
| 330 # 'templog_receive' is ignored due to authorized_keys | |
|
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331 # restrictions. the rpi has authorized_keys with |
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332 # command="/home/matt/templog/venv/bin/python /home/matt/templog/py/receive.py",no-pty,no-port-forwarding,no-x11-forwarding,no-agent-forwarding ssh-rsa AAAAB3NzaC.... |
| 194 | 333 args = [config.SSH_PROG, '-i', config.SSH_KEYFILE, |
| 334 config.SSH_HOST, 'templog_receive'] | |
| 335 try: | |
| 336 p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=subprocess.PIPE) | |
| 337 (out, err) = p.communicate(json.dumps(params)) | |
| 338 except OSError, e: | |
| 339 print>>sys.stderr, e | |
| 340 return "Failed update" | |
| 185 | 341 |
| 194 | 342 if 'Good Update' in out: |
| 343 return True | |
| 344 | |
| 345 print>>sys.stderr, "Strange return from update:" | |
| 346 print>>sys.stderr, out | |
| 347 return "Unexpected update result" | |
| 348 | |
| 349 def same_type(a, b): | |
| 350 ta = type(a) | |
| 351 tb = type(b) | |
| 352 | |
| 353 if ta == int: | |
| 354 ta = float | |
| 355 if tb == int: | |
| 356 tb = float | |
| 357 | |
| 358 return (ta == tb) | |
| 359 | |
| 360 def update_params(p): | |
| 361 params = {} | |
| 362 for i in p: | |
| 363 params[i['name']] = i['value'] | |
| 364 | |
| 365 if params.viewkeys() != _FIELD_DEFAULTS.viewkeys(): | |
| 366 diff = params.viewkeys() ^ _FIELD_DEFAULTS.viewkeys() | |
| 367 return "Key mismatch, difference %s" % str(diff) | |
| 368 | |
| 369 for k, v in params.items(): | |
| 370 if not same_type(v, _FIELD_DEFAULTS[k]): | |
| 371 return "Bad type for %s, %s vs %s" % (k , type(v), type(_FIELD_DEFAULTS[k])) | |
| 372 | |
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373 fridge_settings.update(params) |
| 194 | 374 return True |
| 375 | |
| 376 | |
| 377 |