def read_attribute(self, attr, qual_fun=None, valfun=None):
def read1(bend):
aname = attr.get_name()
if not bend.okay:
return None
try:
aval = bend.read_attribute(attr.get_name())
return aval
except Exception:
self.log.error('read1 %s', aname, exc_info=1)
return None
# read_attribute begins here
try:
if time()<self.next_update_t:
attr.set_quality(AQ_INVALID)
return
aname = attr.get_name()
aval1 = read1(self.bend1)
aval2 = read1(self.bend2)
if aval1 is None or aval2 is None:
attr.set_quality(AQ_INVALID)
return
quality = PS.combine_aq(aval1.quality, aval2.quality)
timestamp = min(tv2time(aval1.time),tv2time(aval2.time))
if qual_fun is None:
quality = self.distill_ne_quality(quality, aval1, aval2)
else:
quality = qual_fun(quality, aval1, aval2)
if valfun is None:
valfun = self.shiver
if aval1.value is None or aval2.value is None:
x = None
else:
x = valfun(aname, aval1.value, aval2.value)
vdq = PS.VDQ(x, q=quality)
setattr(self, '_a'+aname, vdq)
vdq.set_attr(attr)
# calculate and set write values (for writeable attributes)
try:
attr_rw = BrukerBend_PS_Class.attr_list[aname][0][2]
if attr_rw in (Tg.WRITE, Tg.READ_WRITE):
w = valfun(aname+'_W', aval1.w_value, aval2.w_value)
if not w is None:
attr.set_write_value(w)
except Exception:
self.log.warn('read_attribute write_value', exc_info=1)
except Tg.DevFailed:
self.delay_update()
raise
def read_attribute(self, attr, qual_fun=None, valfun=None):
def read1(bend):
aname = attr.get_name()
if not bend.okay:
return None
try:
aval = bend.read_attribute(attr.get_name())
return aval
except Exception:
self.log.error('read1 %s', aname, exc_info=1)
return None
# read_attribute begins here
try:
if time()<self.next_update_t:
attr.set_quality(AQ_INVALID)
return
aname = attr.get_name()
aval1 = read1(self.bend1)
aval2 = read1(self.bend2)
if aval1 is None or aval2 is None:
attr.set_quality(AQ_INVALID)
return
quality = PS.combine_aq(aval1.quality, aval2.quality)
timestamp = min(tv2time(aval1.time),tv2time(aval2.time))
if qual_fun is None:
quality = self.distill_ne_quality(quality, aval1, aval2)
else:
quality = qual_fun(quality, aval1, aval2)
if valfun is None:
valfun = self.shiver
if aval1.value is None or aval2.value is None:
x = None
else:
x = valfun(aname, aval1.value, aval2.value)
vdq = PS.VDQ(x, q=quality)
setattr(self, '_a'+aname, vdq)
vdq.set_attr(attr)
# calculate and set write values (for writeable attributes)
try:
attr_rw = BrukerBend_PS_Class.attr_list[aname][0][2]
if attr_rw in (Tg.WRITE, Tg.READ_WRITE):
w = valfun(aname+'_W', aval1.w_value, aval2.w_value)
if not w is None:
attr.set_write_value(w)
except Exception:
self.log.warn('read_attribute write_value', exc_info=1)
except Tg.DevFailed:
self.delay_update()
raise
av1 = self.bend1['WaveStatus']
av2 = self.bend2['WaveStatus']
except Tg.DevFailed, df:
err = df[-1]
attr.set_value_date_quality(err.desc, time(), AQ_ALARM)
return
except Exception, exc:
attr.set_value_date_quality(str(exc).desc, time(), AQ_ALARM)
return
value = 'not updated'
timestamp = min(tv2time(av1.time),tv2time(av2.time))
quality = PS.combine_aq(av1.quality, av2.quality)
v1, seconds1 = strip_s(av1.value)
v2, seconds2 = strip_s(av2.value)
seconds = max(seconds1, seconds2)
if v1==v2:
value = v1
if seconds:
value += ' %.2fs' % seconds
else:
value = v1 + ' / ' + v2
attr.set_value_date_quality(value, timestamp, quality)
def read_WaveDuration(self, attr):
self.read_attribute(attr)
av1 = self.bend1['WaveStatus']
av2 = self.bend2['WaveStatus']
except Tg.DevFailed, df:
err = df[-1]
attr.set_value_date_quality(err.desc, time(), AQ_ALARM)
return
except Exception, exc:
attr.set_value_date_quality(str(exc).desc, time(), AQ_ALARM)
return
value = 'not updated'
timestamp = min(tv2time(av1.time),tv2time(av2.time))
quality = PS.combine_aq(av1.quality, av2.quality)
v1, seconds1 = strip_s(av1.value)
v2, seconds2 = strip_s(av2.value)
seconds = max(seconds1, seconds2)
if v1==v2:
value = v1
if seconds:
value += ' %.2fs' % seconds
else:
value = v1 + ' / ' + v2
attr.set_value_date_quality(value, timestamp, quality)
def read_WaveDuration(self, attr):
self.read_attribute(attr)
