def set_write_attribute(self, attr, w_value):
try:
attr.set_write_value(w_value)
except DevFailed as df:
df0 = df[0]
reason = df0.reason
# if outside limit prefix the description with the device name
if reason == PyTango.constants.API_WAttrOutsideLimit:
desc = self.alias + ": " + df0.desc
_df = DevFailed(*df[1:])
PyTango.Except.re_throw_exception(_df, df0.reason, desc,
df0.origin)
raise df
def __pollResult(self, attrs, ts, result, error=False):
if error:
for attr in attrs.values():
attr.poll(single=False, value=None, error=result, time=ts)
return
for da in result:
if da.has_failed:
v, err = None, DevFailed(*da.get_err_stack())
else:
v, err = da, None
attr = attrs[da.name]
attr.poll(single=False, value=v, error=err, time=ts)
def from_deviceattribute(da):
if da.has_failed:
exc_info = DevFailed(*da.get_err_stack())
value = None
else:
exc_info = None
value = from_deviceattribute_value(da.value)
dtype, dformat = from_tango_type_format(da.type, da.data_format)
ret = SardanaValue(value=value, exc_info=exc_info,
timestamp=da.time.totime(), dtype=dtype,
dformat=dformat)
return ret
def refreshAttributes(self):
attrs = []
try:
dev = self.getDeviceProxy()
if dev is None:
raise DevFailed() # @todo: check if this is the right exception to throw
attr_info_list = dev.attribute_list_query_ex()
for attr_info in attr_info_list:
full_name = "%s/%s" % (self.fullName(), attr_info.name)
attr_obj = TangoAttrInfo(self.container(),
name=attr_info.name.lower(), full_name=full_name.lower(),
device=self, info=attr_info)
attrs.append(attr_obj)
attrs = sorted(attrs, key=lambda attr: attr.name())
except DevFailed as df:
self._state = TaurusDevState.NotReady
self.setAttributes(attrs)