def __init__(self, poolName, mntgrpName, flagClear):
self.db = Database()
#
# the pool for the Mg
#
try:
self.poolMg = DeviceProxy(poolName)
except Exception as e:
Except.print_exception(e)
print("failed to get proxy to ", poolName)
sys.exit(255)
#
# find the MG
#
try:
self.mg = DeviceProxy(mntgrpName)
except Exception:
lst = [mntgrpName, 'exp_t01', 'exp_c01', 'exp_c02']
self.poolMg.command_inout('CreateMeasurementGroup', lst)
self.mg = DeviceProxy(mntgrpName)
if not flagClear:
self.hsh = json.loads(self.mg.Configuration)
self.masterTimer = self.findMasterTimer()
self.index = len(self.mg.ElementList)
else:
self.hsh = {}
self.hsh[u'controllers'] = {}
self.hsh[u'description'] = "Measurement Group"
self.hsh[u'label'] = mntgrpName
self.index = 0
def run(self, motor):
show_ctrlaxis = self.getViewOption(ViewOption.ShowCtrlAxis)
pos_format = self.getViewOption(ViewOption.PosFormat)
name = motor.getName()
motor_device = PyTango.DeviceProxy(name)
try:
high = motor_device.UnitLimitMax
low = motor_device.UnitLimitMin
pos = motor_device.Position
self.output("")
if show_ctrlaxis:
axis_nb = getattr(motor, "axis")
ctrl_name = self.getController(motor.controller).name
ca_name = " (" + ctrl_name + "." + str(axis_nb) + ")"
name = name + ca_name
self.output(" %s " % name)
self.output("")
if pos_format != -1:
fmt = '%c.%df' % ('%', pos_format)
lowstr = fmt % low
self.output("UnitLimitMin: %s " % lowstr)
posstr = fmt % pos
self.output("Current : %s " % posstr)
highstr = fmt % high
self.output("UnitLimitMax: %s " % highstr)
else:
self.output("UnitLimitMin: %f " % low)
self.output("Current : %f " % pos)
self.output("UnitLimitMax: %f " % high)
except PyTango.DevFailed as e:
Except.print_exception(e)
self.warning("Not able to read motor position or limits")
def _addSca(self, device):
"""
Input: device: sca_exp_mca01_100_200
Returns full controller name, e.g.:
haso107klx:10000/controller/hasscactrl/sca_exp_mca01_100_200
Creates a HasySca controller and creates a device for this controller,
There is only one device per controller
"""
mca, roiMin, roiMax = self.parseSCA(device)
#
# find the tango device name which is used my the sardana device
#
tgMca = self._getMcaName(mca)
#
# sca_exp_mca01_100_200_ctrl
#
ctrlAlias = device + "_ctrl"
#
# see whether the controller exists already
#
lst = self.poolMg.ControllerList
ctrlFullName = None
for elm in lst:
chan = json.loads(elm)
if ctrlAlias == chan['name']:
ctrlFullName = chan['full_name']
break
#
# if the controller does not exist, create it
#
proxy = DeviceProxy(tgMca)
dataLength = proxy.DataLength
if int(roiMax) >= dataLength:
raise Exception(
"MgUtils._addSca %s " % device,
"roiMax %d >= datalength %d " %
(int(roiMax), int(dataLength)))
if int(roiMin) >= dataLength:
raise Exception(
"MgUtils._addSca %s " % device,
"roiMin %d >= datalength %d " % (int(roiMin), dataLength))
if ctrlFullName is None:
lst = [
'CTExpChannel', 'HasyScaCtrl.py', 'HasyScaCtrl', ctrlAlias,
"mca", tgMca, "roi1", roiMin, "roi2", roiMax
]
print("MgUtils._addSca", lst)
try:
self.poolMg.CreateController(lst)
except DevFailed as e:
Except.print_exception(e)
# print "failed to get proxy to ", poolName
sys.exit(255)
lst = self.poolMg.ControllerList
for elm in lst:
chan = json.loads(elm)
if ctrlAlias == chan['name']:
ctrlFullName = chan['full_name']
break
if ctrlFullName is None:
raise Exception('MgUtils._addSca',
"failed to make controller for %s" % device)
#
# see whether the SCA device exists
#
lst = self.poolMg.ExpChannelList
flag = False
for elm in lst:
chan = json.loads(elm)
if device == chan['name']:
flag = True
break
if not flag:
#
# "CTExpChannel","HasyScaCtrl","1","sca_exp_mca01_100_200"
#
lst = ["CTExpChannel", ctrlAlias, "1", device]
self.poolMg.CreateElement(lst)
return ctrlFullName
