def test_alarm_propagation(self):
device_name = '%s/sub1/1' % self.DOMAIN_NAME
members_template = ['%s/capability/sub1cap1', '%s/capability/sub1cap2']
members = [member % self.DOMAIN_NAME for member in members_template]
self.add_members(device_name, 'tiles', members)
dp = DeviceProxy(device_name)
self.assertNotEqual(dp.state(), AttrQuality.ATTR_ALARM)
member_dp = DeviceProxy(members[0])
alarm_data = json.dumps({
'name': 'an_attr',
'min_alarm': '20',
'max_alarm': '50'
})
member_dp.command_inout('set_attribute_alarm', alarm_data)
member_dp.an_attr = 10
attr = AttributeProxy(members[0] + '/an_attr')
self.assertEqual(attr.read().quality, AttrQuality.ATTR_ALARM)
self.assertEqual(member_dp.state(), PyTango._PyTango.DevState.ALARM)
i = 0
while (dp.state() != PyTango._PyTango.DevState.ALARM) and i < 3:
sleep(1)
i += 1
self.assertEqual(dp.state(), PyTango._PyTango.DevState.ALARM)
def add_members(self, device_name, group_name, members=None):
dp = DeviceProxy(device_name)
for member in members:
data = json.dumps({
'group_name': group_name,
'device_name': member
})
dp.command_inout('add_member', data)
def cmdDevice(domain,deviceClass,deviceInstance):
dev = DeviceProxy(domain+"/"+deviceClass+"/"+deviceInstance)
json_data = request.get_json()
cmd_name = json_data["cmd_name"]
cmd_param = json_data["cmd_param"]
if (cmd_param== "None"):
result = dev.command_inout(cmd_name)
else:
result = dev.command_inout(cmd_name,cmd_param)
return cmd_name
def test_add_member(self):
device_name = '%s/sub/1' % self.DOMAIN_NAME
group_name = 'capabilities'
# self.stop_device_server('Subarray_DS')
# self.start_device_server('Subarray_DS')
dp = DeviceProxy(device_name)
dp.set_logging_level(5)
member_device_name_1 = '%s/capability/sub1cap1' % self.DOMAIN_NAME
data_1 = json.dumps({
'group_name': group_name,
'device_name': member_device_name_1
})
dp.command_inout('add_member', data_1)
self.assertTrue(
member_device_name_1 in dp.get_property(group_name)[group_name])
member_device_name_2 = '%s/capability/sub1cap2' % self.DOMAIN_NAME
data_2 = json.dumps({
'group_name': group_name,
'device_name': member_device_name_2
})
dp.command_inout('add_member', data_2)
items = dp.get_property(group_name)[group_name]
self.assertTrue(member_device_name_2 in items)
self.assertEqual(len(items), 2)
dp.command_inout('remove_member', data_2)
items = dp.get_property(group_name)[group_name]
self.assertFalse(member_device_name_2 in items)
self.assertEqual(len(items), 1)
dp.command_inout('remove_member', data_1)
self.assertFalse(
member_device_name_1 in dp.get_property(group_name)[group_name])
def _initCrate(macro, ctrl_obj, crate_nr):
# It initializes all axis found in the same crate
# than the target motor given.
# We could have decided to initialize all motors in the controller.
# Define axes range to re-initialize after reset
# These are the motors in the same crate than the given motor
first = crate_nr * 10
last = first + 8
macro.info('Initializing Crate number %s:' % crate_nr)
macro.info('axes range [%s,%s]' % (first, last))
# Get the alias for ALL motors for the controller
motor_list = ctrl_obj.elementlist
macro.debug("Element in controller: %s" % repr(motor_list))
# Crate a proxy to each element and
# get the axis for each of them
for alias in motor_list:
m = DeviceProxy(alias)
a = int(m.get_property('axis')['axis'][0])
# Execute init command for certain motors:
if first <= a <= last:
macro.debug('alias: %s' % alias)
macro.debug('device name: %s' % m.name())
macro.debug('axis number: %s' % a)
macro.info("Initializing %s..." % alias)
try:
m.command_inout('Init')
# HOTFIX!!! only if offsets are lost 24/12/2016
# print 'IMPORTANT: OVERWRITTING centx/centy offsets!'
# if alias == 'centx':
# centx_offset = -4.065240223463690
# m['offset'] = centx_offset
# print 'centx offset overwritten: %f' % centx_offset
# if alias == 'centy':
# centy_offset = -2.759407821229050
# m['offset'] = centy_offset
# print 'centy offset overwritten: %f' % centy_offset
except Exception:
macro.error('axis %s cannot be initialized' % alias)
def command_inout(command):
print("in command_inout")
arg = request.get_json()
print(arg)
try:
p = DeviceProxy("sys/tg_test/1")
encodedArg = arg #encodeArg(command,arg,p)
if (encodedArg == 'null'):
result = p.command_inout(command)
else:
result = p.command_inout(command, encodedArg)
if isinstance(result, numpy.ndarray):
result = result.tolist()
elif isinstance(result, list):
result = re.sub(r"([\d.]+)", r"'\1'", result.__str__())
if app.testing:
print(json.dumps(result))
return jsonify(json.dumps(result))
except (CommunicationFailed, ConnectionFailed, DevFailed) as e:
return jsonify(handleException(e))
class TangoTestContext(object):
""" Context to run a device without a database."""
nodb = "#dbase=no"
command = "{0} {1} -ORBendPoint giop:tcp::{2} -file={3}"
connect_time = 6.0
def __init__(self, device, device_cls=None, server_name=None,
instance_name=None, device_name=None, properties={},
db=None, port=0, debug=5, daemon=False, process=False):
"""Inititalize the context to run a given device."""
# Argument
tangoclass = device.__name__
if not server_name:
server_name = tangoclass
if not instance_name:
instance_name = server_name.lower()
if not device_name:
device_name = 'test/nodb/' + server_name.lower()
if not port:
port = get_port()
if db is None:
_, db = tempfile.mkstemp()
# Attributes
self.db = db
self.port = port
self.device_name = device_name
self.server_name = "/".join(("dserver", server_name, instance_name))
self.host = "{0}:{1}/".format(platform.node(), self.port)
self.device = self.server = None
# File
self.generate_db_file(server_name, instance_name, device_name,
tangoclass, properties)
# Command args
string = self.command.format(server_name, instance_name, port, db)
string += " -v{0}".format(debug) if debug else ""
cmd_args = string.split()
# Target and arguments
if device_cls:
target = run
args = ({tangoclass: (device_cls, device)}, cmd_args)
elif not hasattr(device, 'run_server'):
target = run
args = ((device,), cmd_args)
else:
target = device.run_server
args = (cmd_args,)
# Thread
cls = Process if process else Thread
self.thread = cls(target=target, args=args)
self.thread.daemon = daemon
def generate_db_file(self, server, instance, device,
tangoclass=None, properties={}):
"""Generate a database file corresponding to the given arguments."""
if not tangoclass:
tangoclass = server
# Open the file
with open(self.db, 'w') as f:
f.write("/".join((server, instance, "DEVICE", tangoclass)))
f.write(': "' + device + '"\n')
# Create database
db = Database(self.db)
# Patched the property dict to avoid a PyTango bug
patched = dict((key, value if value != '' else ' ')
for key, value in properties.items())
# Write properties
db.put_device_property(device, patched)
return db
def get_device_access(self):
"""Return the full device name."""
return self.host+self.device_name+self.nodb
def get_server_access(self):
"""Return the full server name."""
return self.host+self.server_name+self.nodb
def start(self):
"""Run the server."""
self.thread.start()
self.connect()
return self
@retry(connect_time, [ConnectionFailed, DevFailed])
def connect(self):
self.device = DeviceProxy(self.get_device_access())
self.device.ping()
self.server = DeviceProxy(self.get_server_access())
self.server.ping()
def stop(self, timeout=None):
"""Kill the server."""
if self.server:
self.server.command_inout('Kill')
self.thread.join(timeout)
os.unlink(self.db)
def join(self, timeout=None):
self.thread.join(timeout)
def __enter__(self):
"""Enter method for context support."""
if not self.thread.is_alive():
self.start()
return self.device
def __exit__(self, exc_type, exception, trace):
"""Exit method for context support."""
self.stop()
class MgConf:
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 findMasterTimer(self):
if not HasyUtils.versionSardanaNewMg():
self.findMasterTimerD8()
else:
self.findMasterTimerD9()
def findMasterTimerD8(self):
for ctrl in self.hsh[u'controllers']:
Channels = self.hsh[u'controllers'][ctrl][u'units'][u'0'][
u'channels']
for chan in Channels:
if chan.find('dgg2') > 0:
temp = chan
if temp.find('0000') >= 0:
lst = temp.split("/")
temp = "/".join(lst[1:])
masterTimer = self.db.get_alias(str(temp))
return masterTimer
raise ('MgUtils.findMasterTimer', "No timer found")
def findMasterTimerD9(self):
temp = self.hsh[u'timer']
if temp.find('0000') >= 0:
lst = temp.split("/")
#
# tango://haso113u.desy.de:10000/expchan/dgg2_d1_01/1
#
if lst[0].lower() == 'tango:':
temp = "/".join(lst[3:])
else:
temp = "/".join(lst[1:])
#
# expchan/dgg2_d1_01/1
#
masterTimer = self.db.get_alias(str(temp))
return masterTimer
def findDeviceController(self, device):
"""
returns the controller that belongs to a device
"""
lst = []
if self.poolMg.ExpChannelList is not None:
lst = self.poolMg.ExpChannelList
ctrl = None
for elm in lst:
chan = json.loads(elm)
# chan:
# {
# u'axis': 17,
# u'controller':
# u'haso107klx:10000/controller/sis3820ctrl/sis3820_exp',
# u'full_name': u'haso107klx:10000/expchan/sis3820_exp/17',
# u'id': 146,
# u'instrument': u'',
# u'interfaces': [u'Object', u'PoolObject', u'Element',
# u'ExpChannel', u'PoolElement', u'CTExpChannel', u'Acquirable'],
# u'manager': u'exp_pool01',
# u'name': u'exp_c17',
# u'parent': u'sis3820_exp',
# u'pool': u'exp_pool01',
# u'source': u'haso107klx:10000/expchan/sis3820_exp/17/value',
# u'type': u'CTExpChannel',
# u'unit': u'0',
# }
if device == chan['name']:
ctrl = chan['controller']
break
if ctrl is None and device.find("adc") >= 0:
ctrl = os.getenv("TANGO_HOST") + "/" + \
"controller/hasylabadcctrl/hasyadcctrl"
elif ctrl is None and device.find("vfc") >= 0:
ctrl = os.getenv("TANGO_HOST") + "/" + \
"controller/vfcadccontroller/hasyvfcadcctrl"
return ctrl
def findFullDeviceName(self, device):
"""
input: exp_c01
returns: expchan/hasylabvirtualcounterctrl/1
"""
lst = self.poolMg.AcqChannelList
argout = None
for elm in lst:
chan = json.loads(elm)
if device == chan['name']:
#
# from: expchan/hasysis3820ctrl/1/value
# to: expchan/hasysis3820ctrl/1
#
arr = chan['full_name'].split("/")
argout = "/".join(arr[0:-1])
if argout is None:
print("Error with device")
print(device)
raise Exception('MgUtils.findFullDeviceName, %s' % device,
"failed to find %s" % device)
return argout
def updateConfiguration(self):
"""
json-dump the dictionary self.hsh to the Mg configuration
"""
self.mg.Configuration = json.dumps(self.hsh)
def addTimer(self, device):
if not HasyUtils.versionSardanaNewMg():
self.addTimerD8(device)
else:
self.addTimerD9(device)
def addTimerD8(self, device):
"""
add a timer to the Mg
device: exp_t01
"""
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
self.masterTimer = device
self.hsh[u'monitor'] = self.findFullDeviceName(device)
self.hsh[u'timer'] = self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'units'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'units'][u'0'][
u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
dct = {}
dct[u'_controller_name'] = str(ctrl)
dct[u'_unit_id'] = u'0'
dct[u'conditioning'] = u''
dct[u'data_type'] = u'float64'
dct[u'data_units'] = u'No unit'
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'instrument'] = None
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'nexus_path'] = u''
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = []
dct[u'plot_type'] = 0
dct[u'shape'] = []
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[fullDeviceName] = dct
def addTimerD9(self, device):
"""
add a timer to the Mg
device: exp_t01
"""
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
self.masterTimer = device
self.hsh[u'monitor'] = self.findFullDeviceName(device)
self.hsh[u'timer'] = self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'synchronizer'] = "software"
self.hsh[u'controllers'][ctrl][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
dct = {}
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = []
dct[u'plot_type'] = 0
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[fullDeviceName] = dct
def addExtraTimer(self, device):
if not HasyUtils.versionSardanaNewMg():
self.addExtraTimerD8(device)
else:
self.addExtraTimerD9(device)
#
# add an extra timer to the measurement group
#
def addExtraTimerD8(self, device):
""" device: exp_t01"""
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'units'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'units'][u'0'][
u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
dct = {}
dct[u'_controller_name'] = str(ctrl)
dct[u'_unit_id'] = u'0'
dct[u'conditioning'] = u''
dct[u'data_type'] = u'float64'
dct[u'data_units'] = u'No unit'
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'instrument'] = None
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'nexus_path'] = u''
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = []
dct[u'plot_type'] = 0
dct[u'shape'] = []
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[fullDeviceName] = dct
#
# add an extra timer to the measurement group
#
def addExtraTimerD9(self, device):
""" device: exp_t01"""
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'synchronizer'] = "software"
self.hsh[u'controllers'][ctrl][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
dct = {}
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = []
dct[u'plot_type'] = 0
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[fullDeviceName] = dct
def addCounter(self, device, flagDisplay, flagOutput):
if not HasyUtils.versionSardanaNewMg():
self.addCounterD8(device, flagDisplay, flagOutput)
else:
self.addCounterD9(device, flagDisplay, flagOutput)
#
# add a counter to the measurement group
#
def addCounterD8(self, device, flagDisplay, flagOutput):
if device.find('sca_') == 0:
return self.addSCA(device, flagDisplay, flagOutput)
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
print("MgUtils.addCounter adding controller ", ctrl)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'units'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'monitor'] = \
self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'timer'] = \
self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'units'][u'0'][
u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
dct = {}
dct[u'_controller_name'] = str(ctrl)
dct[u'_unit_id'] = u'0'
dct[u'conditioning'] = u''
dct[u'data_type'] = u'float64'
dct[u'data_units'] = u'No unit'
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'instrument'] = u''
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'nexus_path'] = u''
dct[u'normalization'] = 0
if flagOutput:
dct[u'output'] = True
else:
dct[u'output'] = False
dct[u'plot_axes'] = [u'<mov>']
if flagDisplay:
dct[u'plot_type'] = 1
else:
dct[u'plot_type'] = 0
dct[u'shape'] = []
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[fullDeviceName] = dct
#
# add a counter to the measurement group
#
def addCounterD9(self, device, flagDisplay, flagOutput):
if device.find('sca_') == 0:
return self.addSCA(device, flagDisplay, flagOutput)
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
print("MgUtils.addCounter adding controller ", ctrl)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'synchronizer'] = "software"
self.hsh[u'controllers'][ctrl][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
dct = {}
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'normalization'] = 0
if flagOutput:
dct[u'output'] = True
else:
dct[u'output'] = False
dct[u'plot_axes'] = [u'<mov>']
if flagDisplay:
dct[u'plot_type'] = 1
else:
dct[u'plot_type'] = 0
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[fullDeviceName] = dct
def addMCA(self, device):
if not HasyUtils.versionSardanaNewMg():
self.addMCAD8(device)
else:
self.addMCAD9(device)
#
# add a MCA to the measurement group
#
def addMCAD8(self, device):
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
print("MgUtils.addMCA adding controller ", ctrl)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'units'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'monitor'] = \
self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'timer'] = \
self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'units'][u'0'][
u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
proxy = DeviceProxy(str(fullDeviceName))
dct = {}
dct[u'_controller_name'] = str(ctrl)
dct[u'_unit_id'] = u'0'
dct[u'conditioning'] = u''
dct[u'data_type'] = u'float64'
dct[u'data_units'] = u'No unit'
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'instrument'] = None
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 1
dct[u'nexus_path'] = u''
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = []
dct[u'plot_type'] = 0
dct[u'shape'] = [proxy.DataLength]
dct[u'source'] = fullDeviceName + "/Value"
ctrlChannels[fullDeviceName] = dct
#
# add a MCA to the measurement group
#
def addMCAD9(self, device):
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
print("MgUtils.addMCA adding controller ", ctrl)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'synchronizer'] = "software"
self.hsh[u'controllers'][ctrl][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
# proxy =
DeviceProxy(str(fullDeviceName))
dct = {}
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 1
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = [u'<mov>']
dct[u'plot_type'] = 0
dct[u'source'] = fullDeviceName + "/Value"
ctrlChannels[fullDeviceName] = dct
def addPilatus(self, device):
if not HasyUtils.versionSardanaNewMg():
self.addPilatusD8(device)
else:
self.addPilatusD9(device)
#
# add a MCA to the measurement group
#
def addPilatusD8(self, device):
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
print("MgUtils.addPilatus adding controller ", ctrl)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'units'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'monitor'] = \
self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'timer'] = \
self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][ctrl][u'units'][u'0'][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'units'][u'0'][
u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
# proxy =
DeviceProxy(str(fullDeviceName))
dct = {}
dct[u'_controller_name'] = str(ctrl)
dct[u'_unit_id'] = u'0'
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'instrument'] = u''
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 2
dct[u'nexus_path'] = u''
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = []
dct[u'plot_type'] = 0
dct[u'source'] = fullDeviceName + "/Value"
ctrlChannels[fullDeviceName] = dct
#
# add a Pilatus to the measurement group
#
def addPilatusD9(self, device):
ctrl = self.findDeviceController(device)
if ctrl not in self.hsh[u'controllers'].keys():
print("MgUtils.addPilatus adding controller ", ctrl)
self.hsh[u'controllers'][ctrl] = {}
self.hsh[u'controllers'][ctrl][u'synchronizer'] = "software"
self.hsh[u'controllers'][ctrl][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][ctrl][u'channels']
fullDeviceName = self.findFullDeviceName(device)
if fullDeviceName not in ctrlChannels.keys():
print("adding index", self.index, device)
# proxy =
DeviceProxy(str(fullDeviceName))
dct = {}
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = fullDeviceName
dct[u'index'] = self.index
self.index += 1
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 2
dct[u'normalization'] = 0
dct[u'output'] = True
dct[u'plot_axes'] = [u'<mov>']
dct[u'plot_type'] = 0
dct[u'source'] = fullDeviceName + "/Value"
ctrlChannels[fullDeviceName] = dct
def parseSCA(self, name):
"""
name: sca_exp_mca01_100_200, returns ['exp_mca01', '100', '200']
"""
lst = name.split('_')
return [lst[1] + '_' + lst[2], lst[3], lst[4]]
def _getMcaName(self, mcaSardanaDeviceAlias):
"""
input: sardana device name alias
output: the MCA Tango server name which is used by the Sardana device
"""
try:
proxy = DeviceProxy(mcaSardanaDeviceAlias)
except DevFailed as e:
Except.re_throw_exception(
e, "MgUtils",
"failed to create proxy to %s " % mcaSardanaDeviceAlias,
"MgUtils._gHeMcaName")
return proxy.TangoDevice
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
def makeScaControllerForPseudoCounter(self, device):
"""
Input: device: sca_exp_mca01_100_200
Returns full controller name, e.g.:
haso107klx:10000/controller/mca2scactrl/sca_exp_mca01_100_200_ctrl
"""
mca, roiMin, roiMax = self.parseSCA(device)
ctrlAlias = device + "_ctrl"
#
# see whether the controller exists already
#
lst = self.poolMg.ControllerList
for elm in lst:
chan = json.loads(elm)
if ctrlAlias == chan['name']:
return chan['full_name']
lst = [
'PseudoCounter', 'MCA2SCACtrl.py', 'MCA2SCACtrl', device + "_ctrl",
'mca=' + self.findFullDeviceName(mca), 'sca=' + device
]
# print "MgUutils.makeSardanaController", lst
self.poolMg.CreateController(lst)
#
# now it has been created.
# go through the list again an return the full controller name
#
lst = self.poolMg.ControllerList
for elm in lst:
chan = json.loads(elm)
if ctrlAlias == chan['name']:
#
# set the ROIs
#
proxy = DeviceProxy(device)
proxy.Roi1 = int(roiMin)
proxy.Roi2 = int(roiMax)
return chan['full_name']
raise Exception('MgUtils.makeController',
"failed to make controller for %s" % device)
def addSCA(self, device, flagDisplay, flagOutput):
if not HasyUtils.versionSardanaNewMg():
self.addSCAD8(device, flagDisplay, flagOutput)
else:
self.addSCAD9(device, flagDisplay, flagOutput)
def addSCAD8(self, device, flagDisplay, flagOutput):
"""
add a SCA to the measurement group
input: device, e.g. sca_exp_mca01_100_200
"""
if device.find('sca_') != 0:
print("MgUtils.addSCA: '%s' does not begin with 'sca_'," % device)
return False
#
# there is one element per controller
#
fullCtrlName = self._addSca(device)
if fullCtrlName not in self.hsh[u'controllers'].keys():
print("MgUtils.addSca adding controller ", fullCtrlName)
self.hsh[u'controllers'][fullCtrlName] = {}
self.hsh[u'controllers'][fullCtrlName][u'units'] = {}
self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'] = {}
self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'][
u'channels'] = {}
self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'][u'id'] = 0
self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'][
u'monitor'] = self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'][
u'timer'] = self.findFullDeviceName(self.masterTimer)
self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'][
u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][fullCtrlName][u'units'][u'0'][
u'channels']
if not self.findFullDeviceName(device) in ctrlChannels.keys():
print("adding index", self.index, device)
dct = {}
dct[u'_controller_name'] = str(fullCtrlName)
dct[u'_unit_id'] = u'0'
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = self.findFullDeviceName(device)
dct[u'index'] = self.index
self.index += 1
dct[u'instrument'] = None
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'normalization'] = 0
if flagOutput:
dct[u'output'] = True
else:
dct[u'output'] = False
dct[u'plot_axes'] = [u'<mov>']
if flagDisplay:
dct[u'plot_type'] = 1
else:
dct[u'plot_type'] = 0
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[self.findFullDeviceName(device)] = dct
return True
def addSCAD9(self, device, flagDisplay, flagOutput):
"""
add a SCA to the measurement group
input: device, e.g. sca_exp_mca01_100_200
"""
if device.find('sca_') != 0:
print("MgUtils.addSCA: '%s' does not begin with 'sca_'," % device)
return False
#
# there is one element per controller
#
fullCtrlName = self._addSca(device)
if fullCtrlName not in self.hsh[u'controllers'].keys():
print("MgUtils.addSca adding controller ", fullCtrlName)
self.hsh[u'controllers'][fullCtrlName] = {}
ctrl = fullCtrlName
self.hsh[u'controllers'][ctrl][u'synchronizer'] = "software"
self.hsh[u'controllers'][ctrl][u'channels'] = {}
self.hsh[u'controllers'][ctrl][u'id'] = 0
self.hsh[u'controllers'][ctrl][u'monitor'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'timer'] = \
self.findFullDeviceName(device)
self.hsh[u'controllers'][ctrl][u'trigger_type'] = 0
ctrlChannels = self.hsh[u'controllers'][fullCtrlName][u'channels']
if not self.findFullDeviceName(device) in ctrlChannels.keys():
print("adding index", self.index, device)
dct = {}
dct[u'conditioning'] = u''
dct[u'enabled'] = True
dct[u'full_name'] = self.findFullDeviceName(device)
dct[u'index'] = self.index
self.index += 1
dct[u'label'] = str(device)
dct[u'name'] = str(device)
dct[u'ndim'] = 0
dct[u'normalization'] = 0
if flagOutput:
dct[u'output'] = True
else:
dct[u'output'] = False
dct[u'plot_axes'] = [u'<mov>']
if flagDisplay:
dct[u'plot_type'] = 1
else:
dct[u'plot_type'] = 0
dct[u'source'] = dct['full_name'] + "/value"
ctrlChannels[self.findFullDeviceName(device)] = dct
return True
class TangoDevice(object):
"""
Wrapper for basic Tango device.
It provides registering device, halting device and executing commands
"""
POLL_STATE_TIME = 0.5
TEST_MODE = False
def __init__(self, devicePath=None):
"""
Class constructor
@type devicePath: String
"""
self.devicePath = devicePath
self.maxValue = False
self.minValue = False
self.name = "Generic device"
self.output = {}
self.profiling = False
self.deviceError = False
self.defaultClass = self.__class__
# state change marker
self._bstate_changed = False
self.old_state = None
self.__thread = None
try:
self.__device_init()
except:
logging.error(
str("Device %s could not be connected" % self.devicePath))
self.name = self.devicePath
if config.DEVICE_ALLOW_RETRY:
self._retry_device()
#raise Exception(str("Device %s could not be connected" % self.devicePath))
# logging.error(str("Device %s could not be connected" % self.devicePath))
#else:
#raise Exception(str("Device %s could not be connected" % self.devicePath))
def __postInit__(self):
pass
def __device_init(self):
self.device = DeviceProxy(self.devicePath)
info = self.device.import_info()
self.name = info.name
if (self.name in DEVICE_NAMES):
self.name = DEVICE_NAMES[self.name]
self.deviceError = False
self.__postInit__()
def _retry_device(self, callback=None):
self.deviceError = True
thread = Thread(target=self.__retry_routine, args=([callback]))
threads.add_thread(thread)
thread.start()
self.__class__ = DummyDevice
def __retry_routine(self, callback):
retrySleep = [True]
while (retrySleep[0] and threads.THREAD_KEEP_ALIVE):
try:
DeviceProxy(self.devicePath).state()
logging.error("Device online: %s" % (self.devicePath))
retrySleep = [False]
except:
logging.error("Device offline, retrying: %s" %
(self.devicePath))
threads.thread_sleep(config.DEVICE_RETRY_INTERVAL,
sleepFlags=retrySleep)
if threads.THREAD_KEEP_ALIVE == True:
self.__class__ = self.defaultClass
self.__device_init()
if callback: callback()
return True
def isDeviceError(self):
return self.deviceError
def halt(self, callBack=None):
"""
Stop device
"""
pass
def running_remove(self, *args):
"""
Remove device from all running devices set
"""
try:
if (not stopDevices):
runningDevices.remove(self)
except:
pass
def running_add(self):
"""
Add device to all runing devices set
"""
global runningDevices
runningDevices.add(self)
def is_connected(self):
"""
Return true if device is connected
@rtype: bool
"""
if self.device is None: return False
else: return True
def read_attributes(self, attributes):
try:
return self.device.read_attributes(attributes)
except:
logging.error("Device read attribute error: retrying device")
if not config.DEVICE_ALLOW_RETRY:
raise Exception(
str("Device %s could not be connected" % self.devicePath))
else:
self._retry_device()
return self.read_attributes(attributes)
def read_attribute(self, attribute):
try:
return self.device.read_attribute(attribute)
except:
if not config.DEVICE_ALLOW_RETRY:
raise Exception(
str("Device %s could not be connected" % self.devicePath))
else:
self._retry_device()
return self.read_attribute(attribute)
def write_attributes(self, attributes):
"""
Write attribute to device
@type attributes: list
@rtype: String
"""
res = None
if self.device:
for attribute in attributes:
logging.info("Attribute: %s wrote on device: %s", attribute[0],
self.devicePath)
try:
self.device.state()
res = self.device.write_attributes(attributes)
except (DevFailed, AttributeError) as e:
pass
return res
def write_attributes_async(self, attributes, callback=None):
res = None
if self.device:
for attribute in attributes:
logging.info("Attribute: %s wrote on device: %s", attribute[0],
self.devicePath)
try:
self.device.state()
res = self.device.write_attributes_asynch(attributes, callback)
except (DevFailed, AttributeError) as e:
pass
return res
def execute_command(self, commandName, commandParam=None):
"""
Execute command on device
@type commandName: String
@type commandParam: String
@rtype: String
"""
try:
if self.device:
return self.device.command_inout(commandName, commandParam)
except:
if not config.DEVICE_ALLOW_RETRY:
raise Exception(
str("Device %s could not be connected" % self.devicePath))
else:
self._retry_device()
return self.execute_command(commandName, commandParam)
def wait_for_state(self, state, callback=None):
"""
Wait for state
@type state: DevState.state
"""
if self.device:
while (self.device.state() == state):
sleep(self.POLL_STATE_TIME)
if not (callback is None): callback(self)
def wait_seconds(self, duration=1):
"""
Wait for a time duration
@type duration: float if not config.DEVICE_ALLOW_RETRY:
raise Exception(str("Device %s could not be connected" % self.devicePath))
else:
self._retry_device()
return self.execute_command(commandName, commandParam)
"""
if self.device:
sleep(duration)
def poll(self,
commandName,
duration=0.1,
commandResult=True,
callback=None,
commandParam=None):
"""
Poll device with command
@type commandName: String
@type duration: float
@type callback: fun
@type commandParam: String
"""
while (self.execute_command(commandName, commandParam) == commandResult
and threads.THREAD_KEEP_ALIVE):
self.wait_seconds(duration)
if not (callback is None): callback(self)
def poll_attribute(self,
attrName,
duration=0.1,
attributeResult=True,
callback=None,
commandParam=None):
"""
Poll device with command
@type attrName: String
@type duration: float
@type callback: fun
@type commandParam: String
"""
while (self.read_attribute(attrName).value == attributeResult
and threads.THREAD_KEEP_ALIVE):
self.wait_seconds(duration)
if not (callback is None): callback(self)
def check_idle(self):
"""
Check if device id idle
"""
pass
def is_idle(self):
"""
Return True if is idle, False if not and None if unknown
"""
return None
def start_profiling(self):
if self.profiling: return False
self.profiling = True
logging.info("Profiling of device %s started" % self.devicePath)
return True
def stop_profiling(self):
self.profiling = False
self.cleanup_thread()
def current_value(self, value):
return self.read_attribute(value).value
def __profiling_routine(self):
pass
@property
def thread(self):
return self.__thread
def start_external_profiling(self, func):
"""
Starts profiling with an external function
"""
self.profiling = True
if self.__thread is None:
thread = threads.threading.Thread(target=func, args=([self]))
threads.add_thread(thread)
thread.start()
self.__thread = thread
def cleanup_thread(self):
if self.__thread is not None:
self.profiling = False
threads.join_thread(self.__thread)
self.__thread = None
def state(self):
"""
Overload of the state function to keep track of old states
:return:
"""
state = None
try:
state = DeviceProxy(self.devicePath).state()
self._bstate_changed = False
if state != self.old_state:
self.old_state = state
self._bstate_changed = True
except DevFailed:
pass
return state
def is_state_changed(self):
return self._bstate_changed
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