1
2
3 __version__ = '$Revision: 4791 $'.split()[1]
4 __date__ = '$Date: 2007-02-16 $'.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__ parser
31 @status: under development
32 @license: Generated code has no license
33 @todo: FIX: put in a description of the message here with fields and types.
34 '''
35
36 import sys
37 from decimal import Decimal
38 from BitVector import BitVector
39
40 import binary, aisstring
41
42
43 TrueBV = BitVector(bitstring="1")
44 "Why always rebuild the True bit? This should speed things up a bunch"
45 FalseBV = BitVector(bitstring="0")
46 "Why always rebuild the False bit? This should speed things up a bunch"
47
48
49 fieldList = (
50 'dac',
51 'reqDecimal',
52 'unavail_uint',
53 'anUInt',
54 'anInt',
55 'aBool',
56 'aStr',
57 'anUDecimal',
58 'aDecimal',
59 'aFloat',
60 )
61
62 fieldListPostgres = (
63 'dac',
64 'reqDecimal',
65 'unavail_uint',
66 'anUInt',
67 'anInt',
68 'aBool',
69 'aStr',
70 'anUDecimal',
71 'aDecimal',
72 'aFloat',
73 )
74
75 toPgFields = {
76 }
77 '''
78 Go to the Postgis field names from the straight field name
79 '''
80
81 fromPgFields = {
82 }
83 '''
84 Go from the Postgis field names to the straight field name
85 '''
86
87 pgTypes = {
88 }
89 '''
90 Lookup table for each postgis field name to get its type.
91 '''
92
93 -def encode(params, validate=False):
94 '''Create a alltypesmsg binary message payload to pack into an AIS Msg alltypesmsg.
95
96 Fields in params:
97 - dac(uint): Designated Area Code (field automatically set to "366")
98 - reqDecimal(decimal): required decimal value... FIX: scale or no? (field automatically set to "122")
99 - unavail_uint(uint): Unavailable unsigned integer
100 - anUInt(uint): NO unavailable unsigned integer
101 - anInt(int): NO unavailable signed integer
102 - aBool(bool): Simple bool
103 - aStr(aisstr6): An ais string of 5 characters
104 - anUDecimal(udecimal): An unsigned decimal. Allow smaller numbers
105 - aDecimal(decimal): A decimal
106 - aFloat(float): An IEEE floating point number
107 @param params: Dictionary of field names/values. Throws a ValueError exception if required is missing
108 @param validate: Set to true to cause checking to occur. Runs slower. FIX: not implemented.
109 @rtype: BitVector
110 @return: encoded binary message (for binary messages, this needs to be wrapped in a msg 8
111 @note: The returned bits may not be 6 bit aligned. It is up to you to pad out the bits.
112 '''
113
114 bvList = []
115 bvList.append(binary.setBitVectorSize(BitVector(intVal=366),16))
116 bvList.append(binary.bvFromSignedInt(122,8))
117 if 'unavail_uint' in params:
118 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['unavail_uint']),2))
119 else:
120 bvList.append(binary.setBitVectorSize(BitVector(intVal=3),2))
121 bvList.append(binary.setBitVectorSize(BitVector(intVal=params['anUInt']),2))
122 bvList.append(binary.bvFromSignedInt(params['anInt'],3))
123 if params["aBool"]: bvList.append(TrueBV)
124 else: bvList.append(FalseBV)
125 bvList.append(aisstring.encode(params['aStr'],30))
126 bvList.append(binary.setBitVectorSize(BitVector(intVal=int((Decimal(params['anUDecimal'])*Decimal('10')))),16))
127 bvList.append(binary.bvFromSignedInt(int(Decimal(params['aDecimal'])*Decimal('10')),16))
128 bvList.append(binary.float2bitvec(params['aFloat']))
129
130 return binary.joinBV(bvList)
131
132 -def decode(bv, validate=False):
133 '''Unpack a alltypesmsg message
134
135 Fields in params:
136 - dac(uint): Designated Area Code (field automatically set to "366")
137 - reqDecimal(decimal): required decimal value... FIX: scale or no? (field automatically set to "122")
138 - unavail_uint(uint): Unavailable unsigned integer
139 - anUInt(uint): NO unavailable unsigned integer
140 - anInt(int): NO unavailable signed integer
141 - aBool(bool): Simple bool
142 - aStr(aisstr6): An ais string of 5 characters
143 - anUDecimal(udecimal): An unsigned decimal. Allow smaller numbers
144 - aDecimal(decimal): A decimal
145 - aFloat(float): An IEEE floating point number
146 @type bv: BitVector
147 @param bv: Bits defining a message
148 @param validate: Set to true to cause checking to occur. Runs slower. FIX: not implemented.
149 @rtype: dict
150 @return: params
151 '''
152
153
154
155
156 r = {}
157 r['dac']=366
158 r['reqDecimal']=122/Decimal('1')
159 r['unavail_uint']=int(bv[24:26])
160 r['anUInt']=int(bv[26:28])
161 r['anInt']=binary.signedIntFromBV(bv[28:31])
162 r['aBool']=bool(int(bv[31:32]))
163 r['aStr']=aisstring.decode(bv[32:62])
164 r['anUDecimal']=Decimal(int(bv[62:78]))/Decimal('10')
165 r['aDecimal']=Decimal(binary.signedIntFromBV(bv[78:94]))/Decimal('10')
166 r['aFloat']=binary.bitvec2float(bv[94:126])
167 return r
168
170 return 366
171
173 return 122/Decimal('1')
174
176 return int(bv[24:26])
177
179 return int(bv[26:28])
180
183
185 return bool(int(bv[31:32]))
186
189
191 return Decimal(int(bv[62:78]))/Decimal('10')
192
195
198
199
201 out.write("<h3>alltypesmsg<h3>\n")
202 out.write("<table border=\"1\">\n")
203 out.write("<tr bgcolor=\"orange\">\n")
204 out.write("<th align=\"left\">Field Name</th>\n")
205 out.write("<th align=\"left\">Type</th>\n")
206 out.write("<th align=\"left\">Value</th>\n")
207 out.write("<th align=\"left\">Value in Lookup Table</th>\n")
208 out.write("<th align=\"left\">Units</th>\n")
209 out.write("\n")
210 out.write("<tr>\n")
211 out.write("<td>dac</td>\n")
212 out.write("<td>uint</td>\n")
213 if 'dac' in params:
214 out.write(" <td>"+str(params['dac'])+"</td>\n")
215 out.write(" <td>"+str(params['dac'])+"</td>\n")
216 out.write("</tr>\n")
217 out.write("\n")
218 out.write("<tr>\n")
219 out.write("<td>reqDecimal</td>\n")
220 out.write("<td>decimal</td>\n")
221 if 'reqDecimal' in params:
222 out.write(" <td>"+str(params['reqDecimal'])+"</td>\n")
223 out.write(" <td>"+str(params['reqDecimal'])+"</td>\n")
224 out.write("</tr>\n")
225 out.write("\n")
226 out.write("<tr>\n")
227 out.write("<td>unavail_uint</td>\n")
228 out.write("<td>uint</td>\n")
229 if 'unavail_uint' in params:
230 out.write(" <td>"+str(params['unavail_uint'])+"</td>\n")
231 out.write(" <td>"+str(params['unavail_uint'])+"</td>\n")
232 out.write("</tr>\n")
233 out.write("\n")
234 out.write("<tr>\n")
235 out.write("<td>anUInt</td>\n")
236 out.write("<td>uint</td>\n")
237 if 'anUInt' in params:
238 out.write(" <td>"+str(params['anUInt'])+"</td>\n")
239 out.write(" <td>"+str(params['anUInt'])+"</td>\n")
240 out.write("</tr>\n")
241 out.write("\n")
242 out.write("<tr>\n")
243 out.write("<td>anInt</td>\n")
244 out.write("<td>int</td>\n")
245 if 'anInt' in params:
246 out.write(" <td>"+str(params['anInt'])+"</td>\n")
247 out.write(" <td>"+str(params['anInt'])+"</td>\n")
248 out.write("</tr>\n")
249 out.write("\n")
250 out.write("<tr>\n")
251 out.write("<td>aBool</td>\n")
252 out.write("<td>bool</td>\n")
253 if 'aBool' in params:
254 out.write(" <td>"+str(params['aBool'])+"</td>\n")
255 out.write(" <td>"+str(params['aBool'])+"</td>\n")
256 out.write("</tr>\n")
257 out.write("\n")
258 out.write("<tr>\n")
259 out.write("<td>aStr</td>\n")
260 out.write("<td>aisstr6</td>\n")
261 if 'aStr' in params:
262 out.write(" <td>"+str(params['aStr'])+"</td>\n")
263 out.write(" <td>"+str(params['aStr'])+"</td>\n")
264 out.write("</tr>\n")
265 out.write("\n")
266 out.write("<tr>\n")
267 out.write("<td>anUDecimal</td>\n")
268 out.write("<td>udecimal</td>\n")
269 if 'anUDecimal' in params:
270 out.write(" <td>"+str(params['anUDecimal'])+"</td>\n")
271 out.write(" <td>"+str(params['anUDecimal'])+"</td>\n")
272 out.write("</tr>\n")
273 out.write("\n")
274 out.write("<tr>\n")
275 out.write("<td>aDecimal</td>\n")
276 out.write("<td>decimal</td>\n")
277 if 'aDecimal' in params:
278 out.write(" <td>"+str(params['aDecimal'])+"</td>\n")
279 out.write(" <td>"+str(params['aDecimal'])+"</td>\n")
280 out.write("</tr>\n")
281 out.write("\n")
282 out.write("<tr>\n")
283 out.write("<td>aFloat</td>\n")
284 out.write("<td>float</td>\n")
285 if 'aFloat' in params:
286 out.write(" <td>"+str(params['aFloat'])+"</td>\n")
287 out.write(" <td>"+str(params['aFloat'])+"</td>\n")
288 out.write("</tr>\n")
289 out.write("</table>\n")
290
291 -def printFields(params, out=sys.stdout, format='std', fieldList=None, dbType='postgres'):
292 '''Print a aFloat message to stdout.
293
294 Fields in params:
295 - dac(uint): Designated Area Code (field automatically set to "366")
296 - reqDecimal(decimal): required decimal value... FIX: scale or no? (field automatically set to "122")
297 - unavail_uint(uint): Unavailable unsigned integer
298 - anUInt(uint): NO unavailable unsigned integer
299 - anInt(int): NO unavailable signed integer
300 - aBool(bool): Simple bool
301 - aStr(aisstr6): An ais string of 5 characters
302 - anUDecimal(udecimal): An unsigned decimal. Allow smaller numbers
303 - aDecimal(decimal): A decimal
304 - aFloat(float): An IEEE floating point number
305 @param params: Dictionary of field names/values.
306 @param out: File like object to write to
307 @rtype: stdout
308 @return: text to out
309 '''
310
311 if 'std'==format:
312 out.write("aFloat:\n")
313 if 'dac' in params: out.write(" dac: "+str(params['dac'])+"\n")
314 if 'reqDecimal' in params: out.write(" reqDecimal: "+str(params['reqDecimal'])+"\n")
315 if 'unavail_uint' in params: out.write(" unavail_uint: "+str(params['unavail_uint'])+"\n")
316 if 'anUInt' in params: out.write(" anUInt: "+str(params['anUInt'])+"\n")
317 if 'anInt' in params: out.write(" anInt: "+str(params['anInt'])+"\n")
318 if 'aBool' in params: out.write(" aBool: "+str(params['aBool'])+"\n")
319 if 'aStr' in params: out.write(" aStr: "+str(params['aStr'])+"\n")
320 if 'anUDecimal' in params: out.write(" anUDecimal: "+str(params['anUDecimal'])+"\n")
321 if 'aDecimal' in params: out.write(" aDecimal: "+str(params['aDecimal'])+"\n")
322 if 'aFloat' in params: out.write(" aFloat: "+str(params['aFloat'])+"\n")
323 elif 'csv'==format:
324 if None == options.fieldList:
325 options.fieldList = fieldList
326 needComma = False;
327 for field in fieldList:
328 if needComma: out.write(',')
329 needComma = True
330 if field in params:
331 out.write(str(params[field]))
332
333 out.write("\n")
334 elif 'html'==format:
335 printHtml(params,out)
336 elif 'sql'==format:
337 sqlInsertStr(params,out,dbType=dbType)
338 else:
339 print "ERROR: unknown format:",format
340 assert False
341
342 return
343
344
345
346
347
348 -def sqlCreateStr(outfile=sys.stdout, fields=None, extraFields=None
349 ,addCoastGuardFields=True
350 ,dbType='postgres'
351 ):
352 '''
353 Return the SQL CREATE command for this message type
354 @param outfile: file like object to print to.
355 @param fields: which fields to put in the create. Defaults to all.
356 @param extraFields: A sequence of tuples containing (name,sql type) for additional fields
357 @param addCoastGuardFields: Add the extra fields that come after the NMEA check some from the USCG N-AIS format
358 @param dbType: Which flavor of database we are using so that the create is tailored ('sqlite' or 'postgres')
359 @type addCoastGuardFields: bool
360 @return: sql create string
361 @rtype: str
362
363 @see: sqlCreate
364 '''
365 outfile.write(str(sqlCreate(fields,extraFields,addCoastGuardFields,dbType=dbType)))
366
367 -def sqlCreate(fields=None, extraFields=None, addCoastGuardFields=True, dbType='postgres'):
368 '''
369 Return the sqlhelp object to create the table.
370
371 @param fields: which fields to put in the create. Defaults to all.
372 @param extraFields: A sequence of tuples containing (name,sql type) for additional fields
373 @param addCoastGuardFields: Add the extra fields that come after the NMEA check some from the USCG N-AIS format
374 @type addCoastGuardFields: bool
375 @param dbType: Which flavor of database we are using so that the create is tailored ('sqlite' or 'postgres')
376 @return: An object that can be used to generate a return
377 @rtype: sqlhelp.create
378 '''
379 if None == fields: fields = fieldList
380 import sqlhelp
381 c = sqlhelp.create('alltypesmsg',dbType=dbType)
382 c.addPrimaryKey()
383 if 'dac' in fields: c.addInt ('dac')
384 if 'reqDecimal' in fields: c.addDecimal('reqDecimal',3,0)
385 if 'unavail_uint' in fields: c.addInt ('unavail_uint')
386 if 'anUInt' in fields: c.addInt ('anUInt')
387 if 'anInt' in fields: c.addInt ('anInt')
388 if 'aBool' in fields: c.addBool('aBool')
389 if 'aStr' in fields: c.addVarChar('aStr',5)
390 if 'anUDecimal' in fields: c.addDecimal('anUDecimal',5,1)
391 if 'aDecimal' in fields: c.addDecimal('aDecimal',4,0)
392 if 'aFloat' in fields: c.addReal('aFloat')
393
394 if addCoastGuardFields:
395
396
397
398
399
400 c.addVarChar('cg_r',15)
401 c.addInt('cg_sec')
402
403 c.addTimestamp('cg_timestamp')
404
405 return c
406
407 -def sqlInsertStr(params, outfile=sys.stdout, extraParams=None, dbType='postgres'):
408 '''
409 Return the SQL INSERT command for this message type
410 @param params: dictionary of values keyed by field name
411 @param outfile: file like object to print to.
412 @param extraParams: A sequence of tuples containing (name,sql type) for additional fields
413 @return: sql create string
414 @rtype: str
415
416 @see: sqlCreate
417 '''
418 outfile.write(str(sqlInsert(params,extraParams,dbType=dbType)))
419
420
421 -def sqlInsert(params,extraParams=None,dbType='postgres'):
422 '''
423 Give the SQL INSERT statement
424 @param params: dict keyed by field name of values
425 @param extraParams: any extra fields that you have created beyond the normal ais message fields
426 @rtype: sqlhelp.insert
427 @return: insert class instance
428 @todo: allow optional type checking of params?
429 @warning: this will take invalid keys happily and do what???
430 '''
431 import sqlhelp
432 i = sqlhelp.insert('alltypesmsg',dbType=dbType)
433
434 if dbType=='postgres':
435 finished = []
436 for key in params:
437 if key in finished:
438
439 continue
440
441 if key not in toPgFields and key not in fromPgFields:
442 if type(params[key])==Decimal: i.add(key,float(params[key]))
443 else: i.add(key,params[key])
444 else:
445 if key in fromPgFields:
446 val = params[key]
447
448 i.addPostGIS(key,val)
449 finished.append(key)
450 else:
451
452 pgName = toPgFields[key]
453
454 valStr=pgTypes[pgName]+'('
455 vals = []
456 for nonPgKey in fromPgFields[pgName]:
457 vals.append(str(params[nonPgKey]))
458 finished.append(nonPgKey)
459 valStr+=' '.join(vals)+')'
460 i.addPostGIS(pgName,valStr)
461 else:
462 for key in params:
463 if type(params[key])==Decimal: i.add(key,float(params[key]))
464 else: i.add(key,params[key])
465
466 if None != extraParams:
467 for key in extraParams:
468 i.add(key,extraParams[key])
469
470 return i
471
472
473
474
475
476 import unittest
478 '''Return a params file base on the testvalue tags.
479 @rtype: dict
480 @return: params based on testvalue tags
481 '''
482 params = {}
483 params['dac'] = 366
484 params['reqDecimal'] = Decimal('122')
485 params['unavail_uint'] = 2
486 params['anUInt'] = 1
487 params['anInt'] = -1
488 params['aBool'] = True
489 params['aStr'] = 'ASDF1'
490 params['anUDecimal'] = Decimal('9.5')
491 params['aDecimal'] = Decimal('-9.6')
492 params['aFloat'] = -1234.5678
493
494 return params
495
497 '''Use testvalue tag text from each type to build test case the alltypesmsg message'''
499
500 params = testParams()
501 bits = encode(params)
502 r = decode(bits)
503
504
505 self.failUnlessEqual(r['dac'],params['dac'])
506 self.failUnlessAlmostEqual(r['reqDecimal'],params['reqDecimal'],0)
507 self.failUnlessEqual(r['unavail_uint'],params['unavail_uint'])
508 self.failUnlessEqual(r['anUInt'],params['anUInt'])
509 self.failUnlessEqual(r['anInt'],params['anInt'])
510 self.failUnlessEqual(r['aBool'],params['aBool'])
511 self.failUnlessEqual(r['aStr'],params['aStr'])
512 self.failUnlessAlmostEqual(r['anUDecimal'],params['anUDecimal'],1)
513 self.failUnlessAlmostEqual(r['aDecimal'],params['aDecimal'],0)
514 self.failUnlessAlmostEqual(r['aFloat'],params['aFloat'],3)
515
517 parser.add_option('-d','--decode',dest='doDecode',default=False,action='store_true',
518 help='decode a "alltypesmsg" AIS message')
519 parser.add_option('-e','--encode',dest='doEncode',default=False,action='store_true',
520 help='encode a "alltypesmsg" AIS message')
521 parser.add_option('--unavail_uint-field', dest='unavail_uintField',default=3,metavar='uint',type='int'
522 ,help='Field parameter value [default: %default]')
523 parser.add_option('--anUInt-field', dest='anUIntField',metavar='uint',type='int'
524 ,help='Field parameter value [default: %default]')
525 parser.add_option('--anInt-field', dest='anIntField',metavar='int',type='int'
526 ,help='Field parameter value [default: %default]')
527 parser.add_option('--aBool-field', dest='aBoolField',metavar='bool',type='int'
528 ,help='Field parameter value [default: %default]')
529 parser.add_option('--aStr-field', dest='aStrField',metavar='aisstr6',type='string'
530 ,help='Field parameter value [default: %default]')
531 parser.add_option('--anUDecimal-field', dest='anUDecimalField',metavar='udecimal',type='string'
532 ,help='Field parameter value [default: %default]')
533 parser.add_option('--aDecimal-field', dest='aDecimalField',metavar='decimal',type='string'
534 ,help='Field parameter value [default: %default]')
535 parser.add_option('--aFloat-field', dest='aFloatField',metavar='float',type='float'
536 ,help='Field parameter value [default: %default]')
537
538
539 if __name__=='__main__':
540
541 from optparse import OptionParser
542 parser = OptionParser(usage="%prog [options]",
543 version="%prog "+__version__)
544
545 parser.add_option('--doc-test',dest='doctest',default=False,action='store_true',
546 help='run the documentation tests')
547 parser.add_option('--unit-test',dest='unittest',default=False,action='store_true',
548 help='run the unit tests')
549 parser.add_option('-v','--verbose',dest='verbose',default=False,action='store_true',
550 help='Make the test output verbose')
551
552
553
554 typeChoices = ('binary','nmeapayload','nmea')
555 parser.add_option('-t','--type',choices=typeChoices,type='choice',dest='ioType'
556 ,default='nmeapayload'
557 ,help='What kind of string to write for encoding ('+', '.join(typeChoices)+') [default: %default]')
558
559
560 outputChoices = ('std','html','csv','sql' )
561 parser.add_option('-T','--output-type',choices=outputChoices,type='choice',dest='outputType'
562 ,default='std'
563 ,help='What kind of string to output ('+', '.join(outputChoices)+') [default: %default]')
564
565 parser.add_option('-o','--output',dest='outputFileName',default=None,
566 help='Name of the python file to write [default: stdout]')
567
568 parser.add_option('-f','--fields',dest='fieldList',default=None, action='append',
569 choices=fieldList,
570 help='Which fields to include in the output. Currently only for csv output [default: all]')
571
572 parser.add_option('-p','--print-csv-field-list',dest='printCsvfieldList',default=False,action='store_true',
573 help='Print the field name for csv')
574
575 parser.add_option('-c','--sql-create',dest='sqlCreate',default=False,action='store_true',
576 help='Print out an sql create command for the table.')
577
578 dbChoices = ('sqlite','postgres')
579 parser.add_option('-D','--db-type',dest='dbType',default='postgres'
580 ,choices=dbChoices,type='choice'
581 ,help='What kind of database ('+', '.join(dbChoices)+') [default: %default]')
582
583 addMsgOptions(parser)
584
585 (options,args) = parser.parse_args()
586 success=True
587
588 if options.doctest:
589 import os; print os.path.basename(sys.argv[0]), 'doctests ...',
590 sys.argv= [sys.argv[0]]
591 if options.verbose: sys.argv.append('-v')
592 import doctest
593 numfail,numtests=doctest.testmod()
594 if numfail==0: print 'ok'
595 else:
596 print 'FAILED'
597 success=False
598
599 if not success: sys.exit('Something Failed')
600 del success
601
602 if options.unittest:
603 sys.argv = [sys.argv[0]]
604 if options.verbose: sys.argv.append('-v')
605 unittest.main()
606
607 outfile = sys.stdout
608 if None!=options.outputFileName:
609 outfile = file(options.outputFileName,'w')
610
611
612 if options.doEncode:
613
614 if None==options.unavail_uintField: parser.error("missing value for unavail_uintField")
615 if None==options.anUIntField: parser.error("missing value for anUIntField")
616 if None==options.anIntField: parser.error("missing value for anIntField")
617 if None==options.aBoolField: parser.error("missing value for aBoolField")
618 if None==options.aStrField: parser.error("missing value for aStrField")
619 if None==options.anUDecimalField: parser.error("missing value for anUDecimalField")
620 if None==options.aDecimalField: parser.error("missing value for aDecimalField")
621 if None==options.aFloatField: parser.error("missing value for aFloatField")
622 msgDict={
623 'dac': '366',
624 'reqDecimal': '122',
625 'unavail_uint': options.unavail_uintField,
626 'anUInt': options.anUIntField,
627 'anInt': options.anIntField,
628 'aBool': options.aBoolField,
629 'aStr': options.aStrField,
630 'anUDecimal': options.anUDecimalField,
631 'aDecimal': options.aDecimalField,
632 'aFloat': options.aFloatField,
633 }
634
635 bits = encode(msgDict)
636 if 'binary'==options.ioType: print str(bits)
637 elif 'nmeapayload'==options.ioType:
638
639 print "bitLen",len(bits)
640 bitLen=len(bits)
641 if bitLen%6!=0:
642 bits = bits + BitVector(size=(6 - (bitLen%6)))
643 print "result:",binary.bitvectoais6(bits)[0]
644
645
646
647 elif 'nmea'==options.ioType: sys.exit("FIX: need to implement this capability")
648 else: sys.exit('ERROR: unknown ioType. Help!')
649
650
651 if options.sqlCreate:
652 sqlCreateStr(outfile,options.fieldList,dbType=options.dbType)
653
654 if options.printCsvfieldList:
655
656 if None == options.fieldList: options.fieldList = fieldList
657 import StringIO
658 buf = StringIO.StringIO()
659 for field in options.fieldList:
660 buf.write(field+',')
661 result = buf.getvalue()
662 if result[-1] == ',': print result[:-1]
663 else: print result
664
665 if options.doDecode:
666 for msg in args:
667 bv = None
668
669 if msg[0] in ('$','!') and msg[3:6] in ('VDM','VDO'):
670
671
672 bv = binary.ais6tobitvec(msg.split(',')[5])
673 else:
674
675 binaryMsg=True
676 for c in msg:
677 if c not in ('0','1'):
678 binaryMsg=False
679 break
680 if binaryMsg:
681 bv = BitVector(bitstring=msg)
682 else:
683 bv = binary.ais6tobitvec(msg)
684
685 printFields(decode(bv)
686 ,out=outfile
687 ,format=options.outputType
688 ,fieldList=options.fieldList
689 ,dbType=options.dbType
690 )
691