def decode(self):
"""Should set self.info"""
self.reply = Reply(self.response)
self.info = self.__info__
if self.reply.ack.isACK():
self.onACK()
else:
log.info('nonack:%s' % self.reply.ack)
self.reply.info = self.info
def decode(self):
"""Should set self.info"""
self.reply = Reply( self.response )
self.info = self.__info__
if self.reply.ack.isACK( ):
self.onACK()
else:
log.info('nonack:%s' % self.reply.ack)
self.reply.info = self.info
def open( self, newPort=False, **kwds ):
if newPort:
self.port = newPort
self.serial = serial.Serial( self.port, timeout=self.__timeout__, **kwds )
if self.serial.isOpen( ):
log.info( '{agent} opened serial port: {serial}'\
.format( serial = repr( self.serial ),
agent =self.__class__.__name__ ) )
def parse_text( text ):
"""
A glucose record is a tuple of the time and glucose.
( datetime.datetime, int )
>>> len( parse_text( '''2011-01-01 01:02 076''' )[ 0 ] )
2
# spaces
>>> date, value = parse_text( '''2011-01-01 01:02 076''' )[ 0 ]
... #
>>> date.isoformat( )
'2011-01-01T01:02:00'
>>> value
76
# tabs
>>> date, value = parse_text( '''2011-01-01T01:02 076 ''' )[ 0 ]
>>> (date.isoformat( ), value)
('2011-01-01T01:02:00', 76)
# T
>>> date, value = parse_text( '''2011-01-01T01:02 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T01:02:00', 76)
# PM/AM
>>> date, value = parse_text( '''2011-01-01 01:02AM 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T01:02:00', 76)
>>> date, value = parse_text( '''2011-01-01 01:02PM 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T13:02:00', 76)
>>> date, value = parse_text( '''2011-01-01 01:02PM 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T13:02:00', 76)
"""
# TODO: sensitivity to timezones!
results = [ ]
for datum in text.splitlines( ):
frags = datum.strip( ).split( )
if frags == [ ]: continue
log.info( frags )
#frags = map( string.strip, datum.strip( ).split( ) )
value = int( frags[ -1 ] )
date = None
try:
date = text2date( ' '.join( frags[ 0:-1 ] ) )
results.append( ( date, value ) )
except IndexError, e:
log.error( 'error %s' % ( e ) )
def open(self, newPort=False, **kwds):
if newPort:
self.port = newPort
self.serial = serial.Serial(self.port,
timeout=self.__timeout__,
**kwds)
if self.serial.isOpen():
log.info( '{agent} opened serial port: {serial}'\
.format( serial = repr( self.serial ),
agent =self.__class__.__name__ ) )
def parse_text(text):
"""
A glucose record is a tuple of the time and glucose.
( datetime.datetime, int )
>>> len( parse_text( '''2011-01-01 01:02 076''' )[ 0 ] )
2
# spaces
>>> date, value = parse_text( '''2011-01-01 01:02 076''' )[ 0 ]
... #
>>> date.isoformat( )
'2011-01-01T01:02:00'
>>> value
76
# tabs
>>> date, value = parse_text( '''2011-01-01T01:02 076 ''' )[ 0 ]
>>> (date.isoformat( ), value)
('2011-01-01T01:02:00', 76)
# T
>>> date, value = parse_text( '''2011-01-01T01:02 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T01:02:00', 76)
# PM/AM
>>> date, value = parse_text( '''2011-01-01 01:02AM 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T01:02:00', 76)
>>> date, value = parse_text( '''2011-01-01 01:02PM 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T13:02:00', 76)
>>> date, value = parse_text( '''2011-01-01 01:02PM 076''' )[ 0 ]
>>> date.isoformat( ), value
('2011-01-01T13:02:00', 76)
"""
# TODO: sensitivity to timezones!
results = []
for datum in text.splitlines():
frags = datum.strip().split()
if frags == []: continue
log.info(frags)
#frags = map( string.strip, datum.strip( ).split( ) )
value = int(frags[-1])
date = None
try:
date = text2date(' '.join(frags[0:-1]))
results.append((date, value))
except IndexError, e:
log.error('error %s' % (e))
def format_glucose(data):
"""
>>> date, value = format_glucose( '''P "WED","11/10/10","01:46:00 '''
... + '''"," 076 ","N","00", 00 099C''' )
>>> date.isoformat( )
'2010-11-10T01:46:00'
>>> value
76
"""
try:
date = lib.parse.date('T'.join(data.replace('"', '').split(',')[1:3]))
value = int(data.split('"')[7].strip())
except (IndexError, ValueError), e:
log.info(data)
raise InvalidGlucose(data)
def format_glucose( data ):
"""
>>> date, value = format_glucose( '''P "WED","11/10/10","01:46:00 '''
... + '''"," 076 ","N","00", 00 099C''' )
>>> date.isoformat( )
'2010-11-10T01:46:00'
>>> value
76
"""
try:
date = lib.parse.date( 'T'.join(
data.replace( '"', '' ).split( ',' )[ 1:3 ]) )
value = int( data.split( '"' )[ 7 ].strip( ) )
except (IndexError, ValueError), e:
log.info( data )
raise InvalidGlucose( data )
def decode_chunk(chunk):
"""
Experiment: decode a chunk!
TODO: how do we decode historical data?
It's likely composed of regions representing records, either with
some kind of delimiter, or with a common header.
Looking at the hex dump of chunks, it does indeed look like there
is some kind of repeating pattern. But is there an offset to
begin? Is each record the same size, or is there a header
describing the record?
"""
hex_dump_data(chunk)
longs = []
for x in range(0, 32, 4):
q = lib.BangLong(chunk[x:x + 4])
longs.append(q)
logger.info('longs? %s' % ' '.join(map(str, longs)))
def decode_chunk(chunk):
"""
Experiment: decode a chunk!
TODO: how do we decode historical data?
It's likely composed of regions representing records, either with
some kind of delimiter, or with a common header.
Looking at the hex dump of chunks, it does indeed look like there
is some kind of repeating pattern. But is there an offset to
begin? Is each record the same size, or is there a header
describing the record?
"""
hex_dump_data(chunk)
longs = [ ]
for x in range(0, 32, 4):
q = lib.BangLong(chunk[x:x+4])
longs.append(q)
logger.info('longs? %s' % ' '.join(map(str, longs)))
def main(*args):
""" some boiler plate to set up logging, reproducible runs, and
get our little decoder's IO up and running.
"""
global settings
settings.CHUNK_SIZE, settings.PROLOG_SIZE
parser = get_argparser()
args = list(args)
cmd, args = args[0], args[1:]
opts = parser.parse_args((args))
# logger.info('opts: %s' % (pformat(args)))
settings.CHUNK_SIZE = opts.chunk
settings.PROLOG_SIZE = opts.prolog
cmdline = [cmd, "--chunk %s" % (settings.CHUNK_SIZE), "--prolog %s" % (settings.PROLOG_SIZE)] + opts.input
print " ".join(cmdline)
logger.info("opening %s" % (opts.input))
for item in opts.input:
do_input(item)
def main(*args):
""" some boiler plate to set up logging, reproducible runs, and
get our little decoder's IO up and running.
"""
global settings
settings.CHUNK_SIZE, settings.PROLOG_SIZE
parser = get_argparser()
args = list(args)
cmd, args = args[0], args[1:]
opts = parser.parse_args((args))
#logger.info('opts: %s' % (pformat(args)))
settings.CHUNK_SIZE = opts.chunk
settings.PROLOG_SIZE = opts.prolog
cmdline = [
cmd,
'--chunk %s' % (settings.CHUNK_SIZE),
'--prolog %s' % (settings.PROLOG_SIZE)
] + opts.input
print ' '.join(cmdline)
logger.info('opening %s' % (opts.input))
for item in opts.input:
do_input(item)
def do_input(pathish):
"""given something that looks like a file path, try to get data
and decode it.
# first fast forward into some offset.
# then report on how many chunks we read.
"""
handle = get_raw_handle(pathish)
pos = handle.tell()
size = getsize(pathish)
logger.info("opening %s (%s bytes)" % (pathish, size))
# first fast forward into some offset.
logger.info("reading prologue (%s bytes)" % (settings.PROLOG_SIZE))
prolog = handle.read(settings.PROLOG_SIZE)
# then report on how many chunks we read.
for i in itertools.count():
if pos < size:
# logger.info('chunk: %s' % i)
do_chunk(handle)
pos = handle.tell()
else:
break
def do_input(pathish):
"""given something that looks like a file path, try to get data
and decode it.
# first fast forward into some offset.
# then report on how many chunks we read.
"""
handle = get_raw_handle(pathish)
pos = handle.tell()
size = getsize(pathish)
logger.info('opening %s (%s bytes)' % (pathish, size))
# first fast forward into some offset.
logger.info('reading prologue (%s bytes)' % (settings.PROLOG_SIZE))
prolog = handle.read(settings.PROLOG_SIZE)
# then report on how many chunks we read.
for i in itertools.count():
if pos < size:
logger.info('chunk: %s' % i)
do_chunk(handle)
pos = handle.tell()
else:
break
def read_chunk(handle):
"""read a chunk, and normalize it's representation as a
bytearray."""
msg = (settings.CHUNK_SIZE, handle.tell())
logger.info('start reading (bytes %s) from offset %s' % msg)
return bytearray(handle.read(settings.CHUNK_SIZE))
def get_raw_handle(pathish):
"""Obtain a file-like handle from something describing access to
data."""
logger.info('opening %s' % (pathish))
handle = open(pathish)
return handle
def decode(self):
self.info = int(bytearray(self.response[ 3 ])[0])
log.info( '{0}: {1}dBm'.format( self.label, self.info ) )
def decode(self):
self.info = int(bytearray(self.response[3])[0])
log.info('{0}: {1}dBm'.format(self.label, self.info))
def read_chunk(handle):
"""read a chunk, and normalize it's representation as a
bytearray."""
msg = (settings.CHUNK_SIZE, handle.tell( ))
logger.info('start reading (bytes %s) from offset %s' % msg)
return bytearray(handle.read(settings.CHUNK_SIZE))
def get_raw_handle(pathish):
"""Obtain a file-like handle from something describing access to
data."""
logger.info('opening %s' % (pathish))
handle = open(pathish)
return handle
