def _on_measurement_group_changed(self, event_source, event_type, event_value):
# during server startup and shutdown avoid processing element
# creation events
if SardanaServer.server_state != State.Running:
return
timestamp = time.time()
name = event_type.name
name = name.replace('_', '')
multi_attr = self.get_device_attr()
attr = multi_attr.get_attr_by_name(name)
quality = AttrQuality.ATTR_VALID
priority = event_type.priority
error = None
if name == "state":
event_value = self.calculate_tango_state(event_value)
elif name == "status":
event_value = self.calculate_tango_status(event_value)
elif name == "acquisitionmode":
event_value = AcqMode.whatis(event_value)
elif name == "configuration":
cfg = self.measurement_group.get_user_configuration()
codec = CodecFactory().getCodec('json')
_, event_value = codec.encode(('', cfg))
else:
if isinstance(event_value, SardanaAttribute):
if event_value.error:
error = Except.to_dev_failed(*event_value.exc_info)
timestamp = event_value.timestamp
event_value = event_value.value
self.set_attribute(attr, value=event_value, timestamp=timestamp,
quality=quality, priority=priority, error=error,
synch=False)
def write_AcquisitionMode(self, attr):
acq_mode_str = attr.get_write_value()
try:
acq_mode = AcqMode.lookup[acq_mode_str]
except KeyError:
raise Exception("Invalid acquisition mode. Must be one of " +
", ".join(AcqMode.keys()))
self.measurement_group.acquisition_mode = acq_mode
def _on_measurement_group_changed(self, event_source, event_type,
event_value):
# during server startup and shutdown avoid processing element
# creation events
if SardanaServer.server_state != State.Running:
return
timestamp = time.time()
name = event_type.name
name = name.replace('_', '')
multi_attr = self.get_device_attr()
attr = multi_attr.get_attr_by_name(name)
quality = AttrQuality.ATTR_VALID
priority = event_type.priority
error = None
if name == "state":
event_value = self.calculate_tango_state(event_value)
elif name == "status":
event_value = self.calculate_tango_status(event_value)
elif name == "acquisitionmode":
event_value = AcqMode.whatis(event_value)
elif name == "configuration":
cfg = self.measurement_group.get_user_configuration()
codec = CodecFactory().getCodec('json')
_, event_value = codec.encode(('', cfg))
elif name == "synchdescription":
codec = CodecFactory().getCodec('json')
_, event_value = codec.encode(('', event_value))
elif name == "moveable" and event_value is None:
event_value = 'None'
else:
if isinstance(event_value, SardanaAttribute):
if event_value.error:
error = Except.to_dev_failed(*event_value.exc_info)
timestamp = event_value.timestamp
event_value = event_value.value
self.set_attribute(attr,
value=event_value,
timestamp=timestamp,
quality=quality,
priority=priority,
error=error,
synch=False)
def read_AcquisitionMode(self, attr):
acq_mode = self.measurement_group.acquisition_mode
acq_mode_str = AcqMode.whatis(acq_mode)
attr.set_value(acq_mode_str)