def attenuation(self, x=None):
'''Read or set the attenuation'''
if self.test: return 0
from PyTango import DeviceProxy
Attenuator = DeviceProxy('i11-ma-c05/ex/att.1')
labels = [
'00 None', '01 Carbon 200um', '02 Carbon 250um', '03 Carbon 300um',
'04 Carbon 500um', '05 Carbon 1mm', '06 Carbon 2mm',
'07 Carbon 3mm', '10 Ref Fe 5um', '11 Ref Pt 5um'
]
if x == None:
status = Attenuator.Status()
print 'status', status
status = status[:status.index(':')]
value = status
return value
NumToLabel = dict([(int(l.split()[0]), l) for l in labels])
Attenuator.write_attribute(NumToLabel[x], True)
self.wait(Attenuator)
def run(self):
"""
Starts a process
:return:
"""
self.debug("Starting a pytango runner ({}/{}/{})".format(
self.device, self.attr, self.value))
try:
d = DeviceProxy(self.device)
d.ping()
state = d.state()
if state == DevState.FAULT:
raise DevFailed
d.write_attribute(self.attr, self.value)
except DevFailed:
self.error("Error with the pytango runner ({}/{}/{})".format(
self.device, self.attr, self.value))
def attenuation(self, x=None):
'''Read or set the attenuation'''
if self.test: return 0
from PyTango import DeviceProxy
Attenuator = DeviceProxy('i11-ma-c05/ex/att.1')
labels = ['00 None',
'01 Carbon 200um',
'02 Carbon 250um',
'03 Carbon 300um',
'04 Carbon 500um',
'05 Carbon 1mm',
'06 Carbon 2mm',
'07 Carbon 3mm',
'10 Ref Fe 5um',
'11 Ref Pt 5um']
if x == None:
status = Attenuator.Status()
print 'status', status
status = status[:status.index(':')]
value = status
return value
NumToLabel = dict([(int(l.split()[0]), l) for l in labels])
Attenuator.write_attribute(NumToLabel[x], True)
self.wait(Attenuator)
def attenuation(x = None):
'''Read or set the attenuation'''
Attenuator = DeviceProxy('i11-ma-c05/ex/att.1')
labels = [
'00 Extract',
'01 Carbon 200um',
'02 Carbon 250um',
'03 Carbon 300um',
'04 Carbon 500um',
'05 Carbon 1mm',
'06 Carbon 2mm',
'07 Carbon 3mm',
'10 Ref Fe 5um',
'11 Ref Pt 5um'
]
if x == None:
status = Attenuator.Status()
status = status[:status.index(':')]
value = status
return value
NumToLabel = dict([(int(l.split()[0]), l) for l in labels])
Attenuator.write_attribute(NumToLabel[x], True)
class AttenuatorsPX2(Device):
stateAttenuator = {'ALARM' : 0,'EXTRACT' : 1,'INSERT' : 1,'UNKNOWN' : 3, 'ALARM' : 'error','OFF' : 'error', 'RUNNING' : 'moving','MOVING' : 'moving', 'STANDBY' : 'ready', 'UNKNOWN': 'changed', 'EXTRACT': 'outlimits'}
def __init__(self, name):
Device.__init__(self, name)
self.labels = []
self.bits = []
self.attno = 0
self.deviceOk = True
self.NumToLabel = {}
def init(self):
#cmdToggle = self.getCommandObject('toggle')
#cmdToggle.connectSignal('connected', self.connected)
#cmdToggle.connectSignal('disconnected', self.disconnected)
# Connect to device Attenuator defined "tangoname" in the xml file
try :
#self.Attenuatordevice = SimpleDevice(self.getProperty("tangoname"), verbose=False)
self.Attenuatordevice = DeviceProxy(self.getProperty("tangoname"))
self.Attenuatordevice.waitMoves = False
self.Attenuatordevice.timeout = 5000
except :
self.errorDeviceInstance(self.getProperty("tangoname"))
if self.deviceOk:
#self.connected()
#self.chanAttState = self.getChannelObject('State')
#print "self.chanAttState : ", self.chanAttState
#self.chanAttState.connectSignal('update', self.attStateChanged)
##self.chanAttFactor = self.getChannelObject('appliedTransmission')
##self.chanAttFactor = self.getChannelObject('computedTransmission')
##self.chanAttFactor.connectSignal('update', self.attFactorChanged)
##self.chanAttToggle = self.getChannelObject('filtersCombination')
##self.chanAttToggle.connectSignal('update', self.attToggleChanged)
#self.getAtteConfig()
self.connected()
self.chanAttState = self.getChannelObject('State')
print "self.chanAttState : ", self.chanAttState
self.chanAttState.connectSignal('update', self.attStateChanged)
#self.chanAttFactor = self.getChannelObject('appliedTransmission')
self.chanAttFactor = self.getChannelObject('Status')
self.chanAttFactor.connectSignal('update', self.attFactorChanged)
self.chanAttToggle = self.getChannelObject('State')
self.chanAttToggle.connectSignal('update', self.attToggleChanged)
self.getAtteConfig()
logging.getLogger().debug("AttenuatorsPX2: self.labels, self.bits, self.attno, %s, %s, %s" %( self.labels, self.bits, self.attno))
def getAtteConfig(self):
pass
def getAtteConfig_OLD(self):
logging.getLogger().debug("HOS Attenuator: passe dans getAtteConfig")
self.attno = len( self['atte'] )
for att_i in range( self.attno ):
obj = self['atte'][att_i]
self.labels.append( obj.label )
self.bits.append( obj.bits )
self.NumToLabel = dict([(int(l.split()[0]), l) for l in self.labels])
def getAttState(self):
logging.getLogger().debug("HOS Attenuator: passe dans getAttState")
logging.getLogger().debug("Attenuator state read from the device %s",self.Attenuatordevice.State().name)
try:
#print "HEYO", self.Attenuatordevice.StatefiltersCombination
print self.Attenuatordevice.Status()
value= AttenuatorsPX2.stateAttenuator[self.Attenuatordevice.State().name]
except:
logging.getLogger("HWR").error('%s: received value on channel is not a integer value', str(self.name()))
value=None
return value
def getAttFactor(self):
logging.getLogger().debug("HOS Attenuator: passe dans getAttFactor")
print 'self.Attenuatordevice.Status()', self.Attenuatordevice.Status()
try:
#value = float(self.Attenuatordevice.appliedTransmission)
status = self.Attenuatordevice.Status()
status = status[:status.index(':')]
print 'status', status
value = status #self.Attenuatordevice.Status() #1. #float(self.Attenuatordevice.computedTransmission)
except:
logging.getLogger("HWR").error('%s: received value on channel is not a float value', str(self.name()))
value=None
return value
def connected(self):
self.setIsReady(True)
def disconnected(self):
self.setIsReady(False)
def attStateChanged(self, channelValue):
logging.getLogger("HWR").debug("%s: AttenuatorsPX2.attStateChanged: %s", self.name(), channelValue)
self.emit('attStateChanged', (AttenuatorsPX2.stateAttenuator[str(channelValue)], ))
def attFactorChanged(self, channelValue):
print 'attFactorChanged', channelValue
print 'self.Attenuatordevice.Status()', self.Attenuatordevice.Status()
try:
status = self.Attenuatordevice.Status()
status = status[:status.index(':')]
print 'status', status
value = status
#value = float(channelValue)
except:
logging.getLogger("HWR").error('%s: received value on channel is not a float value', str(self.name()))
else:
logging.getLogger("HWR").info('%s: AttenuatorsPX2, received value on channel', str(self.name()))
self.emit('attFactorChanged', (value, ))
def attToggleChanged(self, channelValue):
# print "Dans attToggleChanged channelValue = %s" %channelValue
logging.getLogger().debug("HOS Attenuator: passe dans attToggleChanged")
try:
value = int(channelValue)
except:
logging.getLogger("HWR").error('%s: received value on channel is not a float value', str(self.name()))
else:
self.emit('toggleFilter', (value, ))
def setTransmission(self, value) :
logging.getLogger("HWR").debug("%s: AttenuatorsPX2.setTransmission: %s", self.name(), value)
print value
self.Attenuatordevice.write_attribute(self.NumToLabel[value], True) #.computedAttenuation = 1.0/(value/100.0)
#try:
#self.Attenuatordevice.write_attribute(value, True) #.computedAttenuation = 1.0/(value/100.0)
#except:
#logging.getLogger("HWR").error('%s: received value on channel is not valid', str(self.name()))
#value=None
return value
def toggle(self, value) :
print "Toggle value = %s" %value
logging.getLogger().debug("HOS Attenuator: passe dans toggle")
self.Attenuatordevice.write_attribute(value, True)
# old_value = self.Attenuatordevice.filtersCombination
# try:
# self.Attenuatordevice.filtersCombination = old_value "sys/database/dbds1")+ (2**(value-1))
# except:
# logging.getLogger("HWR").error('%s: the filter doesn\'t exist', str(self.name()))
# value=None
return value
def errorDeviceInstance(self,device) :
#db = SimpleDevice("sys/database/dbds1")
db = DeviceProxy("sys/database/dbds1")
logging.getLogger().error("Check Instance of Device server %s" % db.DbGetDeviceInfo(device)[1][3])
self.sDisconnected()
class AttenuatorsPX2(Device):
stateAttenuator = {
'ALARM': 0,
'EXTRACT': 1,
'INSERT': 1,
'UNKNOWN': 3,
'ALARM': 'error',
'OFF': 'error',
'RUNNING': 'moving',
'MOVING': 'moving',
'STANDBY': 'ready',
'UNKNOWN': 'changed',
'EXTRACT': 'outlimits'
}
def __init__(self, name):
Device.__init__(self, name)
self.labels = []
self.bits = []
self.attno = 0
self.deviceOk = True
self.NumToLabel = {}
def init(self):
#cmdToggle = self.getCommandObject('toggle')
#cmdToggle.connectSignal('connected', self.connected)
#cmdToggle.connectSignal('disconnected', self.disconnected)
# Connect to device Attenuator defined "tangoname" in the xml file
try:
#self.Attenuatordevice = SimpleDevice(self.getProperty("tangoname"), verbose=False)
self.Attenuatordevice = DeviceProxy(self.getProperty("tangoname"))
self.Attenuatordevice.waitMoves = False
self.Attenuatordevice.timeout = 5000
except:
self.errorDeviceInstance(self.getProperty("tangoname"))
if self.deviceOk:
#self.connected()
#self.chanAttState = self.getChannelObject('State')
#print "self.chanAttState : ", self.chanAttState
#self.chanAttState.connectSignal('update', self.attStateChanged)
##self.chanAttFactor = self.getChannelObject('appliedTransmission')
##self.chanAttFactor = self.getChannelObject('computedTransmission')
##self.chanAttFactor.connectSignal('update', self.attFactorChanged)
##self.chanAttToggle = self.getChannelObject('filtersCombination')
##self.chanAttToggle.connectSignal('update', self.attToggleChanged)
#self.getAtteConfig()
self.connected()
self.chanAttState = self.getChannelObject('State')
print "self.chanAttState : ", self.chanAttState
self.chanAttState.connectSignal('update', self.attStateChanged)
#self.chanAttFactor = self.getChannelObject('appliedTransmission')
self.chanAttFactor = self.getChannelObject('Status')
self.chanAttFactor.connectSignal('update', self.attFactorChanged)
self.chanAttToggle = self.getChannelObject('State')
self.chanAttToggle.connectSignal('update', self.attToggleChanged)
self.getAtteConfig()
logging.getLogger().debug(
"AttenuatorsPX2: self.labels, self.bits, self.attno, %s, %s, %s" %
(self.labels, self.bits, self.attno))
def getAtteConfig(self):
pass
def getAtteConfig_OLD(self):
logging.getLogger().debug("HOS Attenuator: passe dans getAtteConfig")
self.attno = len(self['atte'])
for att_i in range(self.attno):
obj = self['atte'][att_i]
self.labels.append(obj.label)
self.bits.append(obj.bits)
self.NumToLabel = dict([(int(l.split()[0]), l) for l in self.labels])
def getAttState(self):
logging.getLogger().debug("HOS Attenuator: passe dans getAttState")
logging.getLogger().debug("Attenuator state read from the device %s",
self.Attenuatordevice.State().name)
try:
#print "HEYO", self.Attenuatordevice.StatefiltersCombination
print self.Attenuatordevice.Status()
value = AttenuatorsPX2.stateAttenuator[
self.Attenuatordevice.State().name]
except:
logging.getLogger("HWR").error(
'%s: received value on channel is not a integer value',
str(self.name()))
value = None
return value
def getAttFactor(self):
logging.getLogger().debug("HOS Attenuator: passe dans getAttFactor")
print 'self.Attenuatordevice.Status()', self.Attenuatordevice.Status()
try:
#value = float(self.Attenuatordevice.appliedTransmission)
status = self.Attenuatordevice.Status()
status = status[:status.index(':')]
print 'status', status
value = status #self.Attenuatordevice.Status() #1. #float(self.Attenuatordevice.computedTransmission)
except:
logging.getLogger("HWR").error(
'%s: received value on channel is not a float value',
str(self.name()))
value = None
return value
def connected(self):
self.setIsReady(True)
def disconnected(self):
self.setIsReady(False)
def attStateChanged(self, channelValue):
logging.getLogger("HWR").debug(
"%s: AttenuatorsPX2.attStateChanged: %s", self.name(),
channelValue)
self.emit('attStateChanged',
(AttenuatorsPX2.stateAttenuator[str(channelValue)], ))
def attFactorChanged(self, channelValue):
print 'attFactorChanged', channelValue
print 'self.Attenuatordevice.Status()', self.Attenuatordevice.Status()
try:
status = self.Attenuatordevice.Status()
status = status[:status.index(':')]
print 'status', status
value = status
#value = float(channelValue)
except:
logging.getLogger("HWR").error(
'%s: received value on channel is not a float value',
str(self.name()))
else:
logging.getLogger("HWR").info(
'%s: AttenuatorsPX2, received value on channel',
str(self.name()))
self.emit('attFactorChanged', (value, ))
def attToggleChanged(self, channelValue):
# print "Dans attToggleChanged channelValue = %s" %channelValue
logging.getLogger().debug(
"HOS Attenuator: passe dans attToggleChanged")
try:
value = int(channelValue)
except:
logging.getLogger("HWR").error(
'%s: received value on channel is not a float value',
str(self.name()))
else:
self.emit('toggleFilter', (value, ))
def setTransmission(self, value):
logging.getLogger("HWR").debug(
"%s: AttenuatorsPX2.setTransmission: %s", self.name(), value)
print value
self.Attenuatordevice.write_attribute(
self.NumToLabel[value],
True) #.computedAttenuation = 1.0/(value/100.0)
#try:
#self.Attenuatordevice.write_attribute(value, True) #.computedAttenuation = 1.0/(value/100.0)
#except:
#logging.getLogger("HWR").error('%s: received value on channel is not valid', str(self.name()))
#value=None
return value
def toggle(self, value):
print "Toggle value = %s" % value
logging.getLogger().debug("HOS Attenuator: passe dans toggle")
self.Attenuatordevice.write_attribute(value, True)
# old_value = self.Attenuatordevice.filtersCombination
# try:
# self.Attenuatordevice.filtersCombination = old_value "sys/database/dbds1")+ (2**(value-1))
# except:
# logging.getLogger("HWR").error('%s: the filter doesn\'t exist', str(self.name()))
# value=None
return value
def errorDeviceInstance(self, device):
#db = SimpleDevice("sys/database/dbds1")
db = DeviceProxy("sys/database/dbds1")
logging.getLogger().error("Check Instance of Device server %s" %
db.DbGetDeviceInfo(device)[1][3])
self.sDisconnected()
class _DeviceHelper(object):
__CMD_FILTER = set(("init", "state", "status"))
__ATTR_FILTER = set(("state", "status"))
def __init__(self, dev_name, *args, **kwargs):
self.dev_name = dev_name
self.device = Device(dev_name, *args, **kwargs)
self.slots = weakref.WeakKeyDictionary()
def connect(self, signal, slot, event_type=PyTango.EventType.CHANGE_EVENT):
i = self.device.subscribe_event(signal, event_type, slot)
self.slots[slot] = i
return i
def disconnect(self, signal, slot):
i = self.slots.pop(slot)
self.device.unsubscribe_event(i)
def get_attr_cache(self, refresh=False):
try:
cache = self.__attr_cache
if not cache:
refresh = True
except AttributeError:
refresh = True
if refresh:
cache = {}
dev = self.device
try:
for attr_info in dev.attribute_list_query_ex():
attr_name = attr_info.name
if attr_name.lower() in self.__ATTR_FILTER:
continue
cache[attr_name] = attr_info
except PyTango.DevFailed:
pass
self.__attr_cache = cache
return cache
def get_attr_info(self, name):
cache = self.get_attr_cache()
result = cache.get(name)
if result:
return result
else:
cache = self.get_attr_cache(refresh=True)
return cache.get(name)
def get_cmd_cache(self, refresh=False):
try:
cache = self.__cmd_cache
if not cache:
refresh = True
except AttributeError:
refresh = True
if refresh:
cache = {}
dev = self.device
try:
for cmd_info in dev.command_list_query():
cmd_name = cmd_info.cmd_name
if cmd_name.lower() in self.__CMD_FILTER:
continue
cmd_func = functools.partial(_command, dev, cmd_info)
cmd_func.__name__ = cmd_name
cmd_func.__doc__ = cmd_info.in_type_desc
cmd_info.func = cmd_func
cache[cmd_name] = cmd_info
except PyTango.DevFailed:
pass
self.__cmd_cache = cache
return cache
def get_cmd_info(self, name):
cache = self.get_cmd_cache()
result = cache.get(name)
if result:
return result
else:
cache = self.get_cmd_cache(refresh=True)
return cache.get(name)
def is_cmd(self, name):
return name.lower() in self.get_cmd_cache()
def members(self):
result = self.get_attr_cache().keys()
result.extend(self.get_cmd_cache().keys())
return result
def get(self, name):
dev = self.device
result = self.get_attr_info(name)
if result:
result = dev.read_attribute(name)
value = result.value
if result.type == PyTango.DevEncoded:
result = loads(*value)
else:
result = value
return result
result = self.get_cmd_info(name)
if result is None:
raise KeyError("Unknown %s" % name)
return result
def set(self, name, value):
result = self.get_attr_info(name)
if result is None:
raise KeyError("Unknown attribute %s" % name)
if result.data_type == PyTango.DevEncoded:
self.device.write_attribute(name, dumps(value))
else:
self.device.write_attribute(name, value)
def get_info(self):
try:
return self.__info
except AttributeError:
pass
try:
info = self.device.info()
self.__dict__["__info"] = info
return info
except PyTango.DevFailed:
return None
def __str__(self):
return self.dstr()
def __repr__(self):
return str(self)
def dstr(self):
info = self.get_info()
klass = "Device"
if info:
klass = info.dev_class
return "{0}({1})".format(klass, self.dev_name)
def run(self, energy):
if energy == -999:
self.output("Usage:")
self.output("me <energy>")
self.output("Move energy. Diffractometer wavelength is set")
return
try:
energyfmb_device = self.getObj("mnchrmtr")
energyfmb_device_name = "mnchrmtr"
except Exception:
self.warning("mnchrmtr device does not exist.")
self.warning("Trying to get the fmb device name from the "
"EnergyFMB environment variable")
try:
energyfmb_device_name = self.getEnv('EnergyFMB')
except Exception:
self.error("EnergyFMB not defined. Macro exiting")
return
try:
energyfmb_device = self.getObj(energyfmb_device_name)
except Exception:
self.error("Unable to get fmb device %s. Macro exiting" %
energyfmb_device_name)
return
try:
energy_device = self.getObj("mnchrmtr")
energy_device_name = "mnchrmtr"
except Exception:
self.warning("mnchrmtr device does not exist.")
self.warning("Trying to get the energy device name from the "
"EnergyDevice environment variable")
try:
energy_device_name = self.getEnv('EnergyDevice')
except Exception:
self.error("EnergyDevice not defined. Macro exiting")
return
try:
energy_device = self.getObj(energy_device_name)
except Exception:
self.error("Unable to get energy device %s. Macro exiting" %
energy_device_name)
return
fmb_tango_device = DeviceProxy(energyfmb_device.TangoDevice)
try:
fmb_tango_device.write_attribute("PseudoChannelCutMode", 0)
except Exception:
pass
flag_diffrac = 0
try:
diffrac_name = self.getEnv('DiffracDevice')
diffrac_device = self.getDevice(diffrac_name)
initial_autoenergy = diffrac_device.read_attribute(
"autoenergyupdate").value
diffrac_device.write_attribute("autoenergyupdate", 0)
flag_diffrac = 1
lambda_to_e = 12398.424 # Amstrong * eV
wavelength = lambda_to_e / energy
diffrac_device.write_attribute("wavelength", wavelength)
except Exception:
pass
self.execMacro("mv", [[energy_device, energy]])
if flag_diffrac:
diffrac_device.write_attribute("autoenergyupdate",
initial_autoenergy)
class _DeviceHelper(object):
__CMD_FILTER = set(("init", "state", "status"))
__ATTR_FILTER = set(("state", "status"))
def __init__(self, dev_name, *args, **kwargs):
self.dev_name = dev_name
self.device = Device(dev_name, *args, **kwargs)
self.slots = weakref.WeakKeyDictionary()
def connect(self, signal, slot, event_type=PyTango.EventType.CHANGE_EVENT):
i = self.device.subscribe_event(signal, event_type, slot)
self.slots[slot] = i
return i
def disconnect(self, signal, slot):
i = self.slots.pop(slot)
self.device.unsubscribe_event(i)
def get_attr_cache(self, refresh=False):
try:
cache = self.__attr_cache
if not cache:
refresh = True
except AttributeError:
refresh = True
if refresh:
cache = {}
dev = self.device
try:
for attr_info in dev.attribute_list_query_ex():
attr_name = attr_info.name
if attr_name.lower() in self.__ATTR_FILTER:
continue
cache[attr_name] = attr_info
except PyTango.DevFailed:
pass
self.__attr_cache = cache
return cache
def get_attr_info(self, name):
cache = self.get_attr_cache()
result = cache.get(name)
if result:
return result
else:
cache = self.get_attr_cache(refresh=True)
return cache.get(name)
def get_cmd_cache(self, refresh=False):
try:
cache = self.__cmd_cache
if not cache:
refresh = True
except AttributeError:
refresh = True
if refresh:
cache = {}
dev = self.device
try:
for cmd_info in dev.command_list_query():
cmd_name = cmd_info.cmd_name
if cmd_name.lower() in self.__CMD_FILTER:
continue
cmd_func = functools.partial(_command, dev, cmd_info)
cmd_func.__name__ = cmd_name
cmd_func.__doc__ = cmd_info.in_type_desc
cmd_info.func = cmd_func
cache[cmd_name] = cmd_info
except PyTango.DevFailed:
pass
self.__cmd_cache = cache
return cache
def get_cmd_info(self, name):
cache = self.get_cmd_cache()
result = cache.get(name)
if result:
return result
else:
cache = self.get_cmd_cache(refresh=True)
return cache.get(name)
def is_cmd(self, name):
return name.lower() in self.get_cmd_cache()
def members(self):
result = self.get_attr_cache().keys()
result.extend(self.get_cmd_cache().keys())
return result
def get(self, name):
dev = self.device
result = self.get_attr_info(name)
if result:
result = dev.read_attribute(name)
value = result.value
if result.type == PyTango.DevEncoded:
result = loads(*value)
else:
result = value
return result
result = self.get_cmd_info(name)
if result is None:
raise KeyError("Unknown %s" % name)
return result
def set(self, name, value):
result = self.get_attr_info(name)
if result is None:
raise KeyError("Unknown attribute %s" % name)
if result.data_type == PyTango.DevEncoded:
self.device.write_attribute(name, dumps(value))
else:
self.device.write_attribute(name, value)
def get_info(self):
try:
return self.__info
except AttributeError:
pass
try:
info = self.device.info()
self.__dict__["__info"] = info
return info
except PyTango.DevFailed:
return None
def __str__(self):
return self.dstr()
def __repr__(self):
return str(self)
def dstr(self):
info = self.get_info()
klass = "Device"
if info:
klass = info.dev_class
return "{0}({1})".format(klass, self.dev_name)
class TangoConnector(Connector):
value_changed = pyqtSignal(str, name="valueChanged")
def __init__(self,
uri=None,
attributes=[],
policy=UpdatePolicy.POLLING,
interval=1.0):
#QThread.__init__(self)
self.alive = False
self.connected = False
self.poll_attributes = {}
self.thread = threading.Thread(target=self.run, name=uri)
try:
self.proxy = DeviceProxy(uri)
self.connected = True
except:
self.attributes["state"]["value"] = State.UNKNOWN
self.janus.utils["logger"].error("TangoConnector(" + self.uri +
").__init__() " +
"connection failed")
self.janus.utils["logger"].debug("", exc_info=True)
Connector.__init__(self, uri, attributes, policy, interval)
def add_attribute(self, attribute=None):
Connector.add_attribute(self, attribute=attribute)
if type(attribute) is not dict or "attr" not in attribute:
return
if "mode" in attribute and attribute["mode"] == "execute":
return
if "name" in attribute:
name = attribute["name"]
else:
name = attribute["attr"].lower()
self.poll_attributes[attribute["attr"]] = name
def update_policy(self, policy=UpdatePolicy.POLLING, interval=1.0):
self.interval = interval
if policy != UpdatePolicy.POLLING and self.isRunning():
self.stop()
elif policy != UpdatePolicy.EVENTBASED:
for attr in self.attributes.keys():
if "event" not in self.attributes[attr]:
continue
try:
self.proxy.unsubscribe_event(
self.attributes[attr]["event"])
except:
self.janus.utils["logger"].error(
"TangoConnector(" + self.uri + ").update_policy() " +
"failed to unsubscribe from tango event")
self.janus.utils["logger"].debug("", exc_info=True)
del self.attributes[attr]["event"]
if policy == UpdatePolicy.POLLING and not self.thread.is_alive():
self.thread.start()
elif policy == UpdatePolicy.EVENTBASED:
for attr in self.attributes.keys:
try:
self.attributes[attr]["event"] = \
self.proxy.subscribe_event(EventType.CHANGE_EVENT, \
self.on_tango_event, [], False)
except:
self.janus.utils["logger"].error(
"TangoConnector(" + self.uri + ").update_policy() " +
"failed to subscribe to tango event")
self.janus.utils["logger"].debug("", exc_info=True)
self.policy = policy
def on_tango_event(self, event):
try:
name = event.attr_name
value = event.attr_value.value
except:
self.janus.utils["logger"].warning("TangoConnector(" + self.uri +
").on_tango_event() " +
"invalid tango event type")
self.janus.utils["logger"].debug("", exc_info=True)
self.attributes[self.poll_attributes[name]]["value"] = value
self.value_changed.emit(self.poll_attributes[name])
def stop_device(self):
self.stop()
def stop(self):
self.alive = False
self.thread.join()
pass
def run(self):
print("thread started: {} ({})".format(
threading.get_ident(),
threading.currentThread().getName()))
self.alive = True
while self.alive:
#remember when we started
timestamp = time.time()
#try to poll attributes
try:
attrs = self.proxy.read_attributes(
list(self.poll_attributes.keys()))
except:
self.attributes["state"]["value"] = State.UNKNOWN
self.janus.utils["logger"].error(
"TangoConnector(" + self.uri + ").run() " +
"reading tango attributes failed")
self.janus.utils["logger"].debug("", exc_info=True)
attrs = []
#assign attribute values and fire change signal if necessary
for attr in attrs:
name = self.poll_attributes[attr.name]
changed = False
if "delta" in self.attributes[name]:
if self.attributes[name]["value"] is None or \
abs(self.attributes[name]["value"] - attr.value) > \
self.attributes[name]["delta"]:
changed = True
elif name == "state" and \
int(self.attributes[name]["value"]) != int(attr.value):
changed = True
elif name == "image_8":
changed = True
elif self.attributes[name]["value"] != attr.value:
changed = True
if changed:
if name == "state":
self.attributes[name]["value"] = State(int(attr.value))
else:
self.attributes[name]["value"] = attr.value
self.value_changed.emit(name)
if not self.alive:
break
#wait for the rest of the polling interval
interval = int((self.interval - (time.time() - timestamp)))
while interval > 0:
if interval > 0.05:
time.sleep(0.05)
interval -= 0.05
else:
time.sleep(interval)
interval = 0
if not self.alive:
break
print("closing thread: {} ({})".format(
threading.get_ident(),
threading.currentThread().getName()))
def state(self, refresh=False):
if refresh:
try:
self.attributes["state"]["value"] = State(
int(self.proxy.state()))
except:
self.attributes["state"]["value"] = State.UNKNOWN
self.janus.utils["logger"].error("TangoConnector(" + self.uri +
").state() " +
"reading tango state failed")
self.janus.utils["logger"].debug("", exc_info=True)
return self.attributes["state"]["value"]
def read(self, attribute=None, refresh=False, alt=None):
if refresh or self.attributes[attribute]["value"] is None:
try:
self.attributes[attribute]["value"] = \
self.proxy.read_attribute(self.attributes[attribute]["attr"]).value
except:
self.janus.utils["logger"].error(
"TangoConnector(" + self.uri + ")" + ".read(" + attribute +
") " + "reading tango attribute failed")
self.janus.utils["logger"].debug("", exc_info=True)
if self.attributes[attribute]["value"] is None \
and alt is not None:
return alt
return self.attributes[attribute]["value"]
def write(self, attribute=None, value=None):
try:
self.proxy.write_attribute(self.attributes[attribute]["attr"],
value)
return True
except:
self.janus.utils["logger"].error("TangoConnector(" + self.uri +
")" + ".write(" + attribute +
") " +
"writing tango attribute failed")
self.janus.utils["logger"].debug("", exc_info=True)
return False
def execute(self, command=None, *values):
try:
if len(values) == 0:
value = self.proxy.command_inout(
self.attributes[command]["attr"])
else:
value = self.proxy.command_inout(
self.attributes[command]["attr"], values)
except Exception as e:
self.janus.utils["logger"].error("TangoConnector(" + self.uri +
")" + ".execute(" + command +
") " +
"executing tango command failed")
self.janus.utils["logger"].debug("", exc_info=True)
return None
return value
