class Tango(object):
"""Interact with Tango system.
Attributes:
_db: instance of Tango database.
door: instance of Sardana door.
debug: debug-level log stream of Sardana.
output: output-level log stream of Sardana.
device_classes (list of str): supported device classes.
devices (str): all devices found under classes |device_classes|.
"""
def __init__(self):
self._db = PyTango.Database()
door_name = self.find_door()
if not door_name:
tkMessageBox.showerror("Error", "No Sardana door found.")
sys.exit(1)
print door_name
door_full_name = "%s:%s/%s" % \
(self._db.get_db_host(), self._db.get_db_port(), door_name)
# Sardana door.
self.door = BaseDoor(door_full_name)
# Debug, Output stream of door log.
self.debug = self.door.getLogObj('debug')
self.output = self.door.getLogObj('output')
self.device_classes = ["Motor", "LimaCCDs"]
self.devices = []
for class_type in self.device_classes:
self.devices.extend(
self._db.get_device_exported_for_class(
class_type).value_string)
def get_device_alias(self, device):
"""Return the alias of |device|."""
return self._db.get_alias_from_device(device)
def get_device_class(self, device):
"""Return the tango class of |device|."""
return self._db.get_class_for_device(device)
def is_sardana_running(self):
"""Return True if sardana is at state ON instead of RUNNING, OFF."""
return self.door.getState() == PyTango.DevState.RUNNING
def find_door(self):
"""Return door name. Return None if not found.
Find door under server pattern MacroServer*.
"""
server_list = self._db.get_server_list('MacroServer/*').value_string
for server in server_list:
server_devs = self._db.get_device_class_list(server).value_string
devs, classes = server_devs[0::2], server_devs[1::2]
for idx, class_ in enumerate(classes):
if class_.lower() == "door":
return devs[idx]
return None
def run_macro(self, command):
"""Run macro on Sardana.
Args:
command (list of str): macro encapsulated in list, eg. ["wa"].
"""
self.output.clearLogBuffer()
self.debug.clearLogBuffer()
self.door.runmacro(command)
# Wait for attribute change finish.
while not self.debug.getLogBuffer():
time.sleep(0.05)
while self.is_sardana_running():
time.sleep(0.05)
else:
return False
return False
DOOR_NAME = "cfeld/door/cfeld-pcx27083.01"
if not is_door(DOOR_NAME):
print "not door"
sys.exit(1)
db = PyTango.Database()
door_full_name = "%s:%s/%s" % (db.get_db_host(), db.get_db_port(), DOOR_NAME)
door = BaseDoor(door_full_name)
output = door.getLogObj('output')
debug = door.getLogObj('debug')
output.clearLogBuffer()
debug.clearLogBuffer()
# door.runmacro(["wa"])
# door.runmacro(["mv", "exp_dmy01", "0"])
door.runmacro(["mv", "motor/dummy_mot_ctrl/1", "0"])
# door.runmacro(["ascan", "exp_dmy01", "0", "1", "10", "0.2"])
# door.runmacro(["ascan", "motor/dummy_mot_ctrl/1", "0", "1", "10", "0.2"])
while not debug.getLogBuffer():
print "empty"
time.sleep(0.05)
while door.getState() == PyTango.DevState.RUNNING:
print "running"
time.sleep(0.05)
print output.getLogBuffer()
print debug.getLogBuffer()