def append(self, item):
if type(item) is SlotProperties:
try:
s = Slot(item)
if self._cb is not None:
s.set_conn_update_callback(self._cb)
self[item.name] = s
if s.is_shared:
self._sort_shared_slots()
except Exception as e:
rospy.logerr(e)
raise e
elif type(item) is GroupProperties:
try:
hostnames = item.hosts
if len(item.hosts) == 0:
hostnames = rospy.get_param("~default_group_hosts", [])
any_shared = False
for h in hostnames:
rep = item.representative
s = Slot(rep, h)
if self._cb is not None:
s.set_conn_update_callback(self._cb)
self[s.name] = s
if s.is_shared is True:
any_shared = True
if any_shared is True:
self._sort_shared_slots()
except Exception as e:
rospy.logerr(e)
raise e
else:
raise TypeError("Invalid item type ('%s')" % type(item))
