def _build_elements(self):
self._user_elements = []
self._physical_elements = {}
self._physical_elements_set = set()
pool = self._get_pool()
for user_element_id in self._user_element_ids:
# an internal element
internal = isinstance(user_element_id, int)
if internal:
try:
user_element = pool.get_element(id=user_element_id)
except KeyError:
self._pending = True
self._user_elements = None
self._physical_elements = None
self._physical_elements_set = None
raise
internal = self._is_managed_element(user_element)
if not internal:
user_element_id = user_element.get_source()
# a tango channel or non internal element (ex: ioregister or motor
# in measurement group)
if not internal:
validator = TangoAttributeNameValidator()
params = validator.getUriGroups(user_element_id)
params['pool'] = self._get_pool()
user_element = PoolExternalObject(**params)
self.add_user_element(user_element)
self._pending = False
def create_measurement_group(self, **kwargs):
name = kwargs['name']
elem_ids = kwargs["user_elements"]
kwargs['pool'] = self
kwargs["pool_name"] = self.name
td = TYPE_MAP_OBJ[ElementType.MeasurementGroup]
klass = td.klass
auto_full_name = td.auto_full_name
full_name = kwargs.get("full_name", auto_full_name.format(**kwargs))
kwargs.pop('pool_name')
self.check_element(name, full_name)
for elem_id in elem_ids:
if isinstance(elem_id, int):
self.pool.get_element(id=elem_id)
else:
tg_attr_validator = TangoAttributeNameValidator()
params = tg_attr_validator.getUriGroups(elem_id)
if params is None:
raise Exception("Invalid channel name %s" % elem_id)
eid = kwargs.get('id')
if eid is None:
kwargs['id'] = eid = self.get_new_id()
else:
self.reserve_id(eid)
elem = klass(**kwargs)
ret = self.add_element(elem)
self.fire_event(EventType("ElementCreated"), elem)
return ret
