Package ais :: Module waterlevel
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Source Code for Module ais.waterlevel

  1  #!/usr/bin/env python 
  2   
  3  __version__ = '$Revision: 4791 $'.split()[1] 
  4  __date__ = '$Date: 2006-12-20 $'.split()[1] 
  5  __author__ = 'xmlbinmsg' 
  6   
  7  __doc__=''' 
  8   
  9  Autogenerated python functions to serialize/deserialize binary messages. 
 10   
 11  Generated by: ./aisxmlbinmsg2py.py 
 12   
 13  Need to then wrap these functions with the outer AIS packet and then 
 14  convert the whole binary blob to a NMEA string.  Those functions are 
 15  not currently provided in this file. 
 16   
 17  serialize: python to ais binary 
 18  deserialize: ais binary to python 
 19   
 20  The generated code uses translators.py, binary.py, and aisstring.py 
 21  which should be packaged with the resulting files. 
 22   
 23   
 24  @requires: U{epydoc<http://epydoc.sourceforge.net/>} > 3.0alpha3 
 25  @requires: U{BitVector<http://cheeseshop.python.org/pypi/BitVector>} 
 26   
 27  @author: '''+__author__+''' 
 28  @version: ''' + __version__ +''' 
 29  @var __date__: Date of last svn commit 
 30  @undocumented: __version__ __author__ __doc__ myparser 
 31  @status: under development 
 32  @license: Generated code has no license 
 33  ''' 
 34   
 35  import sys 
 36  from decimal import Decimal 
 37  from BitVector import BitVector 
 38   
 39  import binary, aisstring 
 40   
 41  # FIX: check to see if these will be needed 
 42  TrueBV  = BitVector(bitstring="1") 
 43  "Why always rebuild the True bit?  This should speed things up a bunch" 
 44  FalseBV = BitVector(bitstring="0") 
 45  "Why always rebuild the False bit?  This should speed things up a bunch" 
 46   
 47   
48 -def encode(params, validate=False):
49 '''Create a waterlevel binary message payload to pack into an AIS Msg waterlevel. 50 51 Fields in params: 52 - dac(uint): Designated Area Code (field automatically set to "366") 53 - fid(uint): Functional Identifier (field automatically set to "1") 54 - efid(uint): extended functional identifier (field automatically set to "12") 55 - timetag_month(uint): Time the measurement represents month 1..12 56 - timetag_day(uint): Time the measurement represents day of the month 1..31 57 - timetag_hour(uint): Time the measurement represents UTC hours 0..23 58 - timetag_min(uint): Time the measurement represents minutes 59 - timetag_sec(uint): Time the measurement represents seconds 60 - stationid(aisstr6): Character identifier of the station. Usually a number. 61 - stationloc_longitude(decimal): Location of the sensor taking the water level measurement or position of prediction East West location 62 - stationloc_latitude(decimal): Location of the sensor taking the water level measurement or position of prediction North South location 63 - waterlevel(int): Water level in centimeters 64 - datum(uint): What reference datum applies to the value 65 - sigma(float): Standard deviation of 1 second samples used to compute the water level height 66 - o(uint): Count of number of samples that fall outside a 3-sigma band about the mean 67 - levelinferred(bool): indicates that the water level value has been inferred 68 - flat_tolerance_exceeded(bool): flat tolerance limit was exceeded. Need better descr 69 - rate_tolerance_exceeded(bool): rate of change tolerance limit was exceeded 70 - temp_tolerance_exceeded(bool): temperature difference tolerance limit was exceeded 71 - expected_height_exceeded(bool): either the maximum or minimum expected water level height limit was exceeded 72 - link_down(bool): Unable to communicate with the tide system. All data invalid 73 - timeLastMeasured_month(uint): Time since last measured value was available month 1..12 74 - timeLastMeasured_day(uint): Time since last measured value was available day of the month 1..31 75 - timeLastMeasured_hour(uint): Time since last measured value was available UTC hours 0..23 76 - timeLastMeasured_min(uint): Time since last measured value was available minutes 77 - timeLastMeasured_sec(uint): Time since last measured value was available seconds 78 @param params: Dictionary of field names/values. Throws a ValueError exception if required is missing 79 @param validate: Set to true to cause checking to occur. Runs slower. FIX: not implemented. 80 @rtype: BitVector 81 @return: encoded binary message (for binary messages, this needs to be wrapped in a msg 8 82 @note: The returned bits may not be 6 bit aligned. It is up to you to pad out the bits. 83 ''' 84 85 bvList = [] 86 bvList.append(binary.setBitVectorSize(BitVector(intVal=366),16)) 87 bvList.append(binary.setBitVectorSize(BitVector(intVal=1),4)) 88 bvList.append(binary.setBitVectorSize(BitVector(intVal=12),12)) 89 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timetag_month']),4)) 90 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timetag_day']),5)) 91 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timetag_hour']),5)) 92 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timetag_min']),6)) 93 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timetag_sec']),6)) 94 if 'stationid' in params: 95 bvList.append(aisstring.encode(params['stationid'],42)) 96 else: 97 bvList.append(aisstring.encode('@@@@@@@',42)) 98 if 'stationloc_longitude' in params: 99 bvList.append(binary.bvFromSignedInt(int(Decimal(params['stationloc_longitude'])*Decimal('600000')),28)) 100 else: 101 bvList.append(binary.bvFromSignedInt(108600000,28)) 102 if 'stationloc_latitude' in params: 103 bvList.append(binary.bvFromSignedInt(int(Decimal(params['stationloc_latitude'])*Decimal('600000')),27)) 104 else: 105 bvList.append(binary.bvFromSignedInt(54600000,27)) 106 if 'waterlevel' in params: 107 bvList.append(binary.bvFromSignedInt(params['waterlevel'],16)) 108 else: 109 bvList.append(binary.bvFromSignedInt(-32768,16)) 110 if 'datum' in params: 111 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['datum']),5)) 112 else: 113 bvList.append(binary.setBitVectorSize(BitVector(intVal=31),5)) 114 bvList.append(binary.float2bitvec(params['sigma'])) 115 if 'o' in params: 116 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['o']),8)) 117 else: 118 bvList.append(binary.setBitVectorSize(BitVector(intVal=255),8)) 119 if params["levelinferred"]: bvList.append(TrueBV) 120 else: bvList.append(FalseBV) 121 if params["flat_tolerance_exceeded"]: bvList.append(TrueBV) 122 else: bvList.append(FalseBV) 123 if params["rate_tolerance_exceeded"]: bvList.append(TrueBV) 124 else: bvList.append(FalseBV) 125 if params["temp_tolerance_exceeded"]: bvList.append(TrueBV) 126 else: bvList.append(FalseBV) 127 if params["expected_height_exceeded"]: bvList.append(TrueBV) 128 else: bvList.append(FalseBV) 129 if params["link_down"]: bvList.append(TrueBV) 130 else: bvList.append(FalseBV) 131 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timeLastMeasured_month']),4)) 132 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timeLastMeasured_day']),5)) 133 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timeLastMeasured_hour']),5)) 134 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timeLastMeasured_min']),6)) 135 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['timeLastMeasured_sec']),6)) 136 137 return binary.joinBV(bvList)
138
139 -def decode(bv, validate=False):
140 '''Unpack a waterlevel message 141 142 Fields in params: 143 - dac(uint): Designated Area Code (field automatically set to "366") 144 - fid(uint): Functional Identifier (field automatically set to "1") 145 - efid(uint): extended functional identifier (field automatically set to "12") 146 - timetag_month(uint): Time the measurement represents month 1..12 147 - timetag_day(uint): Time the measurement represents day of the month 1..31 148 - timetag_hour(uint): Time the measurement represents UTC hours 0..23 149 - timetag_min(uint): Time the measurement represents minutes 150 - timetag_sec(uint): Time the measurement represents seconds 151 - stationid(aisstr6): Character identifier of the station. Usually a number. 152 - stationloc_longitude(decimal): Location of the sensor taking the water level measurement or position of prediction East West location 153 - stationloc_latitude(decimal): Location of the sensor taking the water level measurement or position of prediction North South location 154 - waterlevel(int): Water level in centimeters 155 - datum(uint): What reference datum applies to the value 156 - sigma(float): Standard deviation of 1 second samples used to compute the water level height 157 - o(uint): Count of number of samples that fall outside a 3-sigma band about the mean 158 - levelinferred(bool): indicates that the water level value has been inferred 159 - flat_tolerance_exceeded(bool): flat tolerance limit was exceeded. Need better descr 160 - rate_tolerance_exceeded(bool): rate of change tolerance limit was exceeded 161 - temp_tolerance_exceeded(bool): temperature difference tolerance limit was exceeded 162 - expected_height_exceeded(bool): either the maximum or minimum expected water level height limit was exceeded 163 - link_down(bool): Unable to communicate with the tide system. All data invalid 164 - timeLastMeasured_month(uint): Time since last measured value was available month 1..12 165 - timeLastMeasured_day(uint): Time since last measured value was available day of the month 1..31 166 - timeLastMeasured_hour(uint): Time since last measured value was available UTC hours 0..23 167 - timeLastMeasured_min(uint): Time since last measured value was available minutes 168 - timeLastMeasured_sec(uint): Time since last measured value was available seconds 169 @type bv: BitVector 170 @param bv: Bits defining a message 171 @param validate: Set to true to cause checking to occur. Runs slower. FIX: not implemented. 172 @rtype: dict 173 @return: params 174 ''' 175 176 #Would be nice to check the bit count here.. 177 #if validate: 178 # assert (len(bv)==FIX: SOME NUMBER) 179 r = {} 180 r['dac']=366 181 r['fid']=1 182 r['efid']=12 183 r['timetag_month']=int(bv[32:36]) 184 r['timetag_day']=int(bv[36:41]) 185 r['timetag_hour']=int(bv[41:46]) 186 r['timetag_min']=int(bv[46:52]) 187 r['timetag_sec']=int(bv[52:58]) 188 r['stationid']=aisstring.decode(bv[58:100]) 189 r['stationloc_longitude']=Decimal(binary.signedIntFromBV(bv[100:128]))/Decimal('600000') 190 r['stationloc_latitude']=Decimal(binary.signedIntFromBV(bv[128:155]))/Decimal('600000') 191 r['waterlevel']=binary.signedIntFromBV(bv[155:171]) 192 r['datum']=int(bv[171:176]) 193 r['sigma']=binary.bitvec2float(bv[176:208]) 194 r['o']=int(bv[208:216]) 195 r['levelinferred']=bool(int(bv[216:217])) 196 r['flat_tolerance_exceeded']=bool(int(bv[217:218])) 197 r['rate_tolerance_exceeded']=bool(int(bv[218:219])) 198 r['temp_tolerance_exceeded']=bool(int(bv[219:220])) 199 r['expected_height_exceeded']=bool(int(bv[220:221])) 200 r['link_down']=bool(int(bv[221:222])) 201 r['timeLastMeasured_month']=int(bv[222:226]) 202 r['timeLastMeasured_day']=int(bv[226:231]) 203 r['timeLastMeasured_hour']=int(bv[231:236]) 204 r['timeLastMeasured_min']=int(bv[236:242]) 205 r['timeLastMeasured_sec']=int(bv[242:248]) 206 return r
207
208 -def decodedac(bv, validate=False):
209 return 366
210
211 -def decodefid(bv, validate=False):
212 return 1
213
214 -def decodeefid(bv, validate=False):
215 return 12
216
217 -def decodetimetag_month(bv, validate=False):
218 return int(bv[32:36])
219
220 -def decodetimetag_day(bv, validate=False):
221 return int(bv[36:41])
222
223 -def decodetimetag_hour(bv, validate=False):
224 return int(bv[41:46])
225
226 -def decodetimetag_min(bv, validate=False):
227 return int(bv[46:52])
228
229 -def decodetimetag_sec(bv, validate=False):
230 return int(bv[52:58])
231
232 -def decodestationid(bv, validate=False):
233 return aisstring.decode(bv[58:100])
234
235 -def decodestationloc_longitude(bv, validate=False):
236 return Decimal(binary.signedIntFromBV(bv[100:128]))/Decimal('600000')
237
238 -def decodestationloc_latitude(bv, validate=False):
239 return Decimal(binary.signedIntFromBV(bv[128:155]))/Decimal('600000')
240
241 -def decodewaterlevel(bv, validate=False):
242 return binary.signedIntFromBV(bv[155:171])
243
244 -def decodedatum(bv, validate=False):
245 return int(bv[171:176])
246
247 -def decodesigma(bv, validate=False):
248 return binary.bitvec2float(bv[176:208])
249
250 -def decodeo(bv, validate=False):
251 return int(bv[208:216])
252
253 -def decodelevelinferred(bv, validate=False):
254 return bool(int(bv[216:217]))
255
256 -def decodeflat_tolerance_exceeded(bv, validate=False):
257 return bool(int(bv[217:218]))
258
259 -def decoderate_tolerance_exceeded(bv, validate=False):
260 return bool(int(bv[218:219]))
261
262 -def decodetemp_tolerance_exceeded(bv, validate=False):
263 return bool(int(bv[219:220]))
264
265 -def decodeexpected_height_exceeded(bv, validate=False):
266 return bool(int(bv[220:221]))
267 270
271 -def decodetimeLastMeasured_month(bv, validate=False):
272 return int(bv[222:226])
273
274 -def decodetimeLastMeasured_day(bv, validate=False):
275 return int(bv[226:231])
276
277 -def decodetimeLastMeasured_hour(bv, validate=False):
278 return int(bv[231:236])
279
280 -def decodetimeLastMeasured_min(bv, validate=False):
281 return int(bv[236:242])
282
283 -def decodetimeLastMeasured_sec(bv, validate=False):
284 return int(bv[242:248])
285
286 -def printFields(params, out=sys.stdout, format='std'):
287 '''Print a waterlevel message to stdout. 288 289 Fields in params: 290 - dac(uint): Designated Area Code (field automatically set to "366") 291 - fid(uint): Functional Identifier (field automatically set to "1") 292 - efid(uint): extended functional identifier (field automatically set to "12") 293 - timetag_month(uint): Time the measurement represents month 1..12 294 - timetag_day(uint): Time the measurement represents day of the month 1..31 295 - timetag_hour(uint): Time the measurement represents UTC hours 0..23 296 - timetag_min(uint): Time the measurement represents minutes 297 - timetag_sec(uint): Time the measurement represents seconds 298 - stationid(aisstr6): Character identifier of the station. Usually a number. 299 - stationloc_longitude(decimal): Location of the sensor taking the water level measurement or position of prediction East West location 300 - stationloc_latitude(decimal): Location of the sensor taking the water level measurement or position of prediction North South location 301 - waterlevel(int): Water level in centimeters 302 - datum(uint): What reference datum applies to the value 303 - sigma(float): Standard deviation of 1 second samples used to compute the water level height 304 - o(uint): Count of number of samples that fall outside a 3-sigma band about the mean 305 - levelinferred(bool): indicates that the water level value has been inferred 306 - flat_tolerance_exceeded(bool): flat tolerance limit was exceeded. Need better descr 307 - rate_tolerance_exceeded(bool): rate of change tolerance limit was exceeded 308 - temp_tolerance_exceeded(bool): temperature difference tolerance limit was exceeded 309 - expected_height_exceeded(bool): either the maximum or minimum expected water level height limit was exceeded 310 - link_down(bool): Unable to communicate with the tide system. All data invalid 311 - timeLastMeasured_month(uint): Time since last measured value was available month 1..12 312 - timeLastMeasured_day(uint): Time since last measured value was available day of the month 1..31 313 - timeLastMeasured_hour(uint): Time since last measured value was available UTC hours 0..23 314 - timeLastMeasured_min(uint): Time since last measured value was available minutes 315 - timeLastMeasured_sec(uint): Time since last measured value was available seconds 316 @param params: Dictionary of field names/values. 317 @param out: File like object to write to 318 @rtype: stdout 319 @return: text to out 320 ''' 321 322 if 'std'==format: 323 out.write("waterlevel:\n") 324 out.write(" dac: "+str(params['dac'])+"\n") 325 out.write(" fid: "+str(params['fid'])+"\n") 326 out.write(" efid: "+str(params['efid'])+"\n") 327 out.write(" timetag_month: "+str(params['timetag_month'])+"\n") 328 out.write(" timetag_day: "+str(params['timetag_day'])+"\n") 329 out.write(" timetag_hour: "+str(params['timetag_hour'])+"\n") 330 out.write(" timetag_min: "+str(params['timetag_min'])+"\n") 331 out.write(" timetag_sec: "+str(params['timetag_sec'])+"\n") 332 out.write(" stationid: "+str(params['stationid'])+"\n") 333 out.write(" stationloc_longitude: "+str(params['stationloc_longitude'])+"\n") 334 out.write(" stationloc_latitude: "+str(params['stationloc_latitude'])+"\n") 335 out.write(" waterlevel: "+str(params['waterlevel'])+"\n") 336 out.write(" datum: "+str(params['datum'])+"\n") 337 out.write(" sigma: "+str(params['sigma'])+"\n") 338 out.write(" o: "+str(params['o'])+"\n") 339 out.write(" levelinferred: "+str(params['levelinferred'])+"\n") 340 out.write(" flat_tolerance_exceeded: "+str(params['flat_tolerance_exceeded'])+"\n") 341 out.write(" rate_tolerance_exceeded: "+str(params['rate_tolerance_exceeded'])+"\n") 342 out.write(" temp_tolerance_exceeded: "+str(params['temp_tolerance_exceeded'])+"\n") 343 out.write(" expected_height_exceeded: "+str(params['expected_height_exceeded'])+"\n") 344 out.write(" link_down: "+str(params['link_down'])+"\n") 345 out.write(" timeLastMeasured_month: "+str(params['timeLastMeasured_month'])+"\n") 346 out.write(" timeLastMeasured_day: "+str(params['timeLastMeasured_day'])+"\n") 347 out.write(" timeLastMeasured_hour: "+str(params['timeLastMeasured_hour'])+"\n") 348 out.write(" timeLastMeasured_min: "+str(params['timeLastMeasured_min'])+"\n") 349 out.write(" timeLastMeasured_sec: "+str(params['timeLastMeasured_sec'])+"\n") 350 351 return # Nothing to return
352 353 354 355 ###################################################################### 356 # UNIT TESTING 357 ###################################################################### 358 import unittest
359 -def testParams():
360 '''Return a params file base on the testvalue tags. 361 @rtype: dict 362 @return: params based on testvalue tags 363 ''' 364 params = {} 365 params['dac'] = 366 366 params['fid'] = 1 367 params['efid'] = 12 368 params['timetag_month'] = 2 369 params['timetag_day'] = 28 370 params['timetag_hour'] = 23 371 params['timetag_min'] = 45 372 params['timetag_sec'] = 58 373 params['stationid'] = 'A234567' 374 params['stationloc_longitude'] = Decimal('-122.16328055555556') 375 params['stationloc_latitude'] = Decimal('37.424458333333334') 376 params['waterlevel'] = -97 377 params['datum'] = 0 378 params['sigma'] = -1.234 379 params['o'] = 240 380 params['levelinferred'] = False 381 params['flat_tolerance_exceeded'] = True 382 params['rate_tolerance_exceeded'] = False 383 params['temp_tolerance_exceeded'] = False 384 params['expected_height_exceeded'] = True 385 params['link_down'] = False 386 params['timeLastMeasured_month'] = 2 387 params['timeLastMeasured_day'] = 28 388 params['timeLastMeasured_hour'] = 23 389 params['timeLastMeasured_min'] = 45 390 params['timeLastMeasured_sec'] = 58 391 392 return params
393
394 -class Testwaterlevel(unittest.TestCase):
395 '''Use testvalue tag text from each type to build test case the waterlevel message'''
396 - def testEncodeDecode(self):
397 398 params = testParams() 399 bits = encode(params) 400 r = decode(bits) 401 402 # Check that each parameter came through ok. 403 self.failUnlessEqual(r['dac'],params['dac']) 404 self.failUnlessEqual(r['fid'],params['fid']) 405 self.failUnlessEqual(r['efid'],params['efid']) 406 self.failUnlessEqual(r['timetag_month'],params['timetag_month']) 407 self.failUnlessEqual(r['timetag_day'],params['timetag_day']) 408 self.failUnlessEqual(r['timetag_hour'],params['timetag_hour']) 409 self.failUnlessEqual(r['timetag_min'],params['timetag_min']) 410 self.failUnlessEqual(r['timetag_sec'],params['timetag_sec']) 411 self.failUnlessEqual(r['stationid'],params['stationid']) 412 self.failUnlessAlmostEqual(r['stationloc_longitude'],params['stationloc_longitude'],5) 413 self.failUnlessAlmostEqual(r['stationloc_latitude'],params['stationloc_latitude'],5) 414 self.failUnlessEqual(r['waterlevel'],params['waterlevel']) 415 self.failUnlessEqual(r['datum'],params['datum']) 416 self.failUnlessAlmostEqual(r['sigma'],params['sigma'],7) 417 self.failUnlessEqual(r['o'],params['o']) 418 self.failUnlessEqual(r['levelinferred'],params['levelinferred']) 419 self.failUnlessEqual(r['flat_tolerance_exceeded'],params['flat_tolerance_exceeded']) 420 self.failUnlessEqual(r['rate_tolerance_exceeded'],params['rate_tolerance_exceeded']) 421 self.failUnlessEqual(r['temp_tolerance_exceeded'],params['temp_tolerance_exceeded']) 422 self.failUnlessEqual(r['expected_height_exceeded'],params['expected_height_exceeded']) 423 self.failUnlessEqual(r['link_down'],params['link_down']) 424 self.failUnlessEqual(r['timeLastMeasured_month'],params['timeLastMeasured_month']) 425 self.failUnlessEqual(r['timeLastMeasured_day'],params['timeLastMeasured_day']) 426 self.failUnlessEqual(r['timeLastMeasured_hour'],params['timeLastMeasured_hour']) 427 self.failUnlessEqual(r['timeLastMeasured_min'],params['timeLastMeasured_min']) 428 self.failUnlessEqual(r['timeLastMeasured_sec'],params['timeLastMeasured_sec'])
429 430 ############################################################ 431 if __name__=='__main__': 432 433 from optparse import OptionParser 434 myparser = OptionParser(usage="%prog [options]", 435 version="%prog "+__version__) 436 437 #sys.exit('EARLY EXIT - FIX: remove') 438 myparser.add_option('--doc-test',dest='doctest',default=False,action='store_true', 439 help='run the documentation tests') 440 myparser.add_option('--unit-test',dest='unittest',default=False,action='store_true', 441 help='run the unit tests') 442 myparser.add_option('-v','--verbose',dest='verbose',default=False,action='store_true', 443 help='Make the test output verbose') 444 445 446 myparser.add_option('-d','--decode',dest='doDecode',default=False,action='store_true', 447 help='decode a "waterlevel" AIS message') 448 myparser.add_option('-e','--encode',dest='doEncode',default=False,action='store_true', 449 help='encode a "waterlevel" AIS message') 450 451 452 # FIX: remove nmea from binary messages. No way to build the whole packet? 453 # FIX: or build the surrounding msg 8 for a broadcast? 454 typeChoices = ('binary','nmeapayload','nmea') # FIX: what about a USCG type message? 455 myparser.add_option('-t','--type',choices=typeChoices,type='choice',dest='ioType' 456 ,default='nmeapayload' 457 ,help='What kind of string to expect ('+', '.join(typeChoices)+') [default: %default]') 458 459 myparser.add_option('--timetag_month-field', dest='timetag_monthField' 460 ,help='Field parameter value [default: %default]' 461 ,metavar='uint' 462 ,type='int' 463 ) 464 myparser.add_option('--timetag_day-field', dest='timetag_dayField' 465 ,help='Field parameter value [default: %default]' 466 ,metavar='uint' 467 ,type='int' 468 ) 469 myparser.add_option('--timetag_hour-field', dest='timetag_hourField' 470 ,help='Field parameter value [default: %default]' 471 ,metavar='uint' 472 ,type='int' 473 ) 474 myparser.add_option('--timetag_min-field', dest='timetag_minField' 475 ,help='Field parameter value [default: %default]' 476 ,metavar='uint' 477 ,type='int' 478 ) 479 myparser.add_option('--timetag_sec-field', dest='timetag_secField' 480 ,help='Field parameter value [default: %default]' 481 ,metavar='uint' 482 ,type='int' 483 ) 484 myparser.add_option('--stationid-field', dest='stationidField',default='@@@@@@@' 485 ,help='Field parameter value [default: %default]' 486 ,metavar='aisstr6' 487 ,type='string' 488 ) 489 myparser.add_option('--stationloc_longitude-field', dest='stationloc_longitudeField',default=Decimal('181') 490 ,help='Field parameter value [default: %default]' 491 ,metavar='decimal' 492 ,type='string' 493 ) 494 myparser.add_option('--stationloc_latitude-field', dest='stationloc_latitudeField',default=Decimal('91') 495 ,help='Field parameter value [default: %default]' 496 ,metavar='decimal' 497 ,type='string' 498 ) 499 myparser.add_option('--waterlevel-field', dest='waterlevelField',default=-32768 500 ,help='Field parameter value [default: %default]' 501 ,metavar='int' 502 ,type='int' 503 ) 504 myparser.add_option('--datum-field', dest='datumField',default=31 505 ,help='Field parameter value [default: %default]' 506 ,metavar='uint' 507 ,type='int' 508 ) 509 myparser.add_option('--sigma-field', dest='sigmaField' 510 ,help='Field parameter value [default: %default]' 511 ,metavar='float' 512 ,type='float' 513 ) 514 myparser.add_option('--o-field', dest='oField',default=255 515 ,help='Field parameter value [default: %default]' 516 ,metavar='uint' 517 ,type='int' 518 ) 519 myparser.add_option('--levelinferred-field', dest='levelinferredField' 520 ,help='Field parameter value [default: %default]' 521 ,metavar='bool' 522 ,type='int' 523 ) 524 myparser.add_option('--flat_tolerance_exceeded-field', dest='flat_tolerance_exceededField' 525 ,help='Field parameter value [default: %default]' 526 ,metavar='bool' 527 ,type='int' 528 ) 529 myparser.add_option('--rate_tolerance_exceeded-field', dest='rate_tolerance_exceededField' 530 ,help='Field parameter value [default: %default]' 531 ,metavar='bool' 532 ,type='int' 533 ) 534 myparser.add_option('--temp_tolerance_exceeded-field', dest='temp_tolerance_exceededField' 535 ,help='Field parameter value [default: %default]' 536 ,metavar='bool' 537 ,type='int' 538 ) 539 myparser.add_option('--expected_height_exceeded-field', dest='expected_height_exceededField' 540 ,help='Field parameter value [default: %default]' 541 ,metavar='bool' 542 ,type='int' 543 ) 544 myparser.add_option('--link_down-field', dest='link_downField' 545 ,help='Field parameter value [default: %default]' 546 ,metavar='bool' 547 ,type='int' 548 ) 549 myparser.add_option('--timeLastMeasured_month-field', dest='timeLastMeasured_monthField' 550 ,help='Field parameter value [default: %default]' 551 ,metavar='uint' 552 ,type='int' 553 ) 554 myparser.add_option('--timeLastMeasured_day-field', dest='timeLastMeasured_dayField' 555 ,help='Field parameter value [default: %default]' 556 ,metavar='uint' 557 ,type='int' 558 ) 559 myparser.add_option('--timeLastMeasured_hour-field', dest='timeLastMeasured_hourField' 560 ,help='Field parameter value [default: %default]' 561 ,metavar='uint' 562 ,type='int' 563 ) 564 myparser.add_option('--timeLastMeasured_min-field', dest='timeLastMeasured_minField' 565 ,help='Field parameter value [default: %default]' 566 ,metavar='uint' 567 ,type='int' 568 ) 569 myparser.add_option('--timeLastMeasured_sec-field', dest='timeLastMeasured_secField' 570 ,help='Field parameter value [default: %default]' 571 ,metavar='uint' 572 ,type='int' 573 ) 574 575 (options,args) = myparser.parse_args() 576 success=True 577 578 if options.doctest: 579 import os; print os.path.basename(sys.argv[0]), 'doctests ...', 580 sys.argv= [sys.argv[0]] 581 if options.verbose: sys.argv.append('-v') 582 import doctest 583 numfail,numtests=doctest.testmod() 584 if numfail==0: print 'ok' 585 else: 586 print 'FAILED' 587 success=False 588 589 if not success: 590 sys.exit('Something Failed') 591 592 del success # Hide success from epydoc 593 594 if options.unittest: 595 sys.argv = [sys.argv[0]] 596 if options.verbose: sys.argv.append('-v') 597 unittest.main() 598 599 if options.doEncode: 600 # First make sure all non required options are specified 601 if None==options.timetag_monthField: myparser.error("missing value for timetag_monthField") 602 if None==options.timetag_dayField: myparser.error("missing value for timetag_dayField") 603 if None==options.timetag_hourField: myparser.error("missing value for timetag_hourField") 604 if None==options.timetag_minField: myparser.error("missing value for timetag_minField") 605 if None==options.timetag_secField: myparser.error("missing value for timetag_secField") 606 if None==options.stationidField: myparser.error("missing value for stationidField") 607 if None==options.stationloc_longitudeField: myparser.error("missing value for stationloc_longitudeField") 608 if None==options.stationloc_latitudeField: myparser.error("missing value for stationloc_latitudeField") 609 if None==options.waterlevelField: myparser.error("missing value for waterlevelField") 610 if None==options.datumField: myparser.error("missing value for datumField") 611 if None==options.sigmaField: myparser.error("missing value for sigmaField") 612 if None==options.oField: myparser.error("missing value for oField") 613 if None==options.levelinferredField: myparser.error("missing value for levelinferredField") 614 if None==options.flat_tolerance_exceededField: myparser.error("missing value for flat_tolerance_exceededField") 615 if None==options.rate_tolerance_exceededField: myparser.error("missing value for rate_tolerance_exceededField") 616 if None==options.temp_tolerance_exceededField: myparser.error("missing value for temp_tolerance_exceededField") 617 if None==options.expected_height_exceededField: myparser.error("missing value for expected_height_exceededField") 618 if None==options.link_downField: myparser.error("missing value for link_downField") 619 if None==options.timeLastMeasured_monthField: myparser.error("missing value for timeLastMeasured_monthField") 620 if None==options.timeLastMeasured_dayField: myparser.error("missing value for timeLastMeasured_dayField") 621 if None==options.timeLastMeasured_hourField: myparser.error("missing value for timeLastMeasured_hourField") 622 if None==options.timeLastMeasured_minField: myparser.error("missing value for timeLastMeasured_minField") 623 if None==options.timeLastMeasured_secField: myparser.error("missing value for timeLastMeasured_secField") 624 msgDict={ 625 'dac': '366', 626 'fid': '1', 627 'efid': '12', 628 'timetag_month': options.timetag_monthField, 629 'timetag_day': options.timetag_dayField, 630 'timetag_hour': options.timetag_hourField, 631 'timetag_min': options.timetag_minField, 632 'timetag_sec': options.timetag_secField, 633 'stationid': options.stationidField, 634 'stationloc_longitude': options.stationloc_longitudeField, 635 'stationloc_latitude': options.stationloc_latitudeField, 636 'waterlevel': options.waterlevelField, 637 'datum': options.datumField, 638 'sigma': options.sigmaField, 639 'o': options.oField, 640 'levelinferred': options.levelinferredField, 641 'flat_tolerance_exceeded': options.flat_tolerance_exceededField, 642 'rate_tolerance_exceeded': options.rate_tolerance_exceededField, 643 'temp_tolerance_exceeded': options.temp_tolerance_exceededField, 644 'expected_height_exceeded': options.expected_height_exceededField, 645 'link_down': options.link_downField, 646 'timeLastMeasured_month': options.timeLastMeasured_monthField, 647 'timeLastMeasured_day': options.timeLastMeasured_dayField, 648 'timeLastMeasured_hour': options.timeLastMeasured_hourField, 649 'timeLastMeasured_min': options.timeLastMeasured_minField, 650 'timeLastMeasured_sec': options.timeLastMeasured_secField, 651 } 652 bits = encode(msgDict) 653 if 'binary'==options.ioType: print str(bits) 654 elif 'nmeapayload'==options.ioType: 655 print "bitLen",len(bits) 656 bitLen=len(bits) 657 if bitLen%6!=0: 658 bits = bits + BitVector(size=(6 - (bitLen%6))) # Pad out to multiple of 6 659 print "result:",binary.bitvectoais6(bits)[0] 660 elif 'nmea'==options.ioType: sys.exit("FIX: need to implement this capability") 661 else: sys.exit('ERROR: unknown ioType. Help!') 662 663 if options.doDecode: 664 for msg in args: 665 if 'binary'==options.ioType: 666 bv = BitVector(bitstring=msg) 667 printFields(decode(bv)) 668 elif 'nmeapayload'==options.ioType: 669 bv = binary.ais6tobitvec(msg) 670 printFields(decode(bv)) 671 elif 'nmea'==options.ioType: 672 bv = binary.ais6tobitvec(msg.split(',')[5]) 673 printFields(decode(bv)) 674 else: sys.exit('ERROR: unknown ioType. Help!') 675