def __init__(self, filename, data_dir=None, run_time=0, focal_length=None, watch_url=None):
self.dfile = FODatafile(filename, data_dir, watch_url=watch_url, focal_length=focal_length)
logging.debug('Filename: %s' % (self.dfile.filename))
if run_time > 0:
logging.debug('Run time: %d seconds' % run_time)
self.go_time = time.time()
self.end_time = self.go_time + run_time
self.run_time = run_time
class FlexOpt(LineReceiver):
def __init__(self, filename, data_dir=None, run_time=0, focal_length=None, watch_url=None):
self.dfile = FODatafile(filename, data_dir, watch_url=watch_url, focal_length=focal_length)
logging.debug('Filename: %s' % (self.dfile.filename))
if run_time > 0:
logging.debug('Run time: %d seconds' % run_time)
self.go_time = time.time()
self.end_time = self.go_time + run_time
self.run_time = run_time
def connectionMade(self):
logging.debug('Connection made to the flexOptometer!')
self.tzero = time.time()
def do_sample(self):
"""
Do a single sample on demand. Triggers lineReceived.
"""
self.transport.write('\rrea\r')
def lineReceived(self, line):
ts = time.time() - self.tzero
str = line.strip()
if len(str) == 0:
return
if str[0] == '*':
logging.warn('Ignoring line "%s"' % str)
return
if str == 'Ok':
return
if str == 'ERROR-Command not recognized.':
logging.error('Unknown command!')
return
try:
fv = float(str)
except ValueError:
logging.exception('Error parsing as float: ')
return
if fv < 0.0:
logging.warn('Dropping negative value %f' % fv)
return
logstr = '%s\t%s\n' % (ts, fv)
logging.debug(logstr.strip())
self.dfile.write_datum(ts, fv)
if self.run_time > 0:
if time.time() > self.end_time:
logging.info('Done.')
self.dfile.close()
self.transport.write('\r')
self.transport.write('beep\r')
self.transport.write('beep\r')
self.transport.write('beep\r')
self.transport.write('beep\r')
self.transport.loseConnection()
reactor.stop()
