def read_Value(self, attr):
oned = self.oned
# TODO: decide if we force the controller developers to store the
# last acquired value in the controllers or we always will use
# cache. This is due to the fact that the clients (MS) read the value
# after the acquisition had finished.
use_cache = oned.is_in_operation() and not self.Force_HW_Read
# For the moment we just check if we recently receive ValueBuffer.
# event. In this case, we use cache and clean the flag
# so the cached value will be returned only at the first readout
# after the acquisition. This is a workaround for the count executed
# by the MacroServer e.g. step scans or ct which read the value after
# the acquisition.
if not use_cache and self._first_read_cache:
use_cache = True
self._first_read_cache = False
value = oned.get_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
state = oned.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=value.value, quality=quality,
timestamp=value.timestamp, priority=0)
def read_Value(self, attr):
twod = self.twod
# TODO: decide if we force the controller developers to store the
# last acquired value in the controllers or we always will use
# cache. This is due to the fact that the clients (MS) read the value
# after the acquisition had finished.
use_cache = twod.is_in_operation() and not self.Force_HW_Read
# For the moment we just check if we recently receive ValueBuffer.
# event. In this case, we use cache and clean the flag
# so the cached value will be returned only at the first readout
# after the acquisition. This is a workaround for the count executed
# by the MacroServer e.g. step scans or ct which read the value after
# the acquisition.
if not use_cache and self._first_read_cache:
use_cache = True
self._first_read_cache = False
value = twod.get_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
state = twod.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr,
value=value.value,
quality=quality,
timestamp=value.timestamp,
priority=0)
def _to_motor_write_positions(self, pos):
w_positions = []
for elem in self.motor_group.get_user_elements():
position = pos[elem]
if position.in_error():
Except.throw_python_exception(*position.exc_info)
w_positions.append(position.w_value)
return w_positions
def _to_motor_write_positions(self, pos):
w_positions = []
for elem in self.motor_group.get_user_elements():
position = pos[elem]
if position.in_error():
Except.throw_python_exception(*position.exc_info)
w_positions.append(position.w_value)
return w_positions
def read_Value(self, attr):
value = self.ior.get_value(cache=False)
if value.error:
Except.throw_python_exception(*value.exc_info)
self.set_attribute(attr,
value=value.value,
w_value=value.w_value,
priority=0,
timestamp=value.timestamp)
def read_Value(self, attr):
pseudo_counter = self.pseudo_counter
use_cache = pseudo_counter.is_in_operation() and not self.Force_HW_Read
value = pseudo_counter.get_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
quality = None
state = pseudo_counter.get_state(cache=use_cache, propagate=0)
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=value.value, quality=quality,
priority=0, timestamp=value.timestamp)
def read_DialPosition(self, attr):
motor = self.motor
use_cache = motor.is_in_operation() and not self.Force_HW_Read
state = motor.get_state(cache=use_cache, propagate=0)
dial_position = motor.get_dial_position(cache=use_cache, propagate=0)
if dial_position.error:
Except.throw_python_exception(*dial_position.exc_info)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=dial_position.value, quality=quality,
priority=0, timestamp=dial_position.timestamp)
def read_Value(self, attr):
twod = self.twod
use_cache = twod.is_in_operation() and not self.Force_HW_Read
value = twod.get_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
state = twod.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=value.value, quality=quality,
timestamp=value.timestamp, priority=0)
def read_DialPosition(self, attr):
motor = self.motor
use_cache = motor.is_in_operation() and not self.Force_HW_Read
state = motor.get_state(cache=use_cache, propagate=0)
dial_position = motor.get_dial_position(cache=use_cache, propagate=0)
if dial_position.error:
Except.throw_python_exception(*dial_position.exc_info)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=dial_position.value, quality=quality,
priority=0, timestamp=dial_position.timestamp)
def read_CurrentValue(self, attr):
zerod = self.zerod
#use_cache = ct.is_action_running() and not self.Force_HW_Read
use_cache = self.get_state() == State.Moving and not self.Force_HW_Read
value = zerod.get_current_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
quality = None
state = zerod.get_state(cache=use_cache, propagate=0)
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=value.value, quality=quality,
priority=0, timestamp=value.timestamp)
def throw_sardana_exception(exc):
"""Throws an exception as a tango exception"""
if isinstance(exc, SardanaException):
if exc.exc_info and not None in exc.exc_info:
Except.throw_python_exception(*exc.exc_info)
else:
tb = "<Unknown>"
if exc.traceback is not None:
tb = str(exc.traceback)
Except.throw_exception(exc.type, exc.msg, tb)
elif hasattr(exc, 'exc_info'):
Except.throw_python_exception(*exc.exc_info)
else:
raise exc
def throw_sardana_exception(exc):
"""Throws an exception as a tango exception"""
if isinstance(exc, SardanaException):
if exc.exc_info and not None in exc.exc_info:
Except.throw_python_exception(*exc.exc_info)
else:
tb = "<Unknown>"
if exc.traceback is not None:
tb = str(exc.traceback)
Except.throw_exception(exc.type, exc.msg, tb)
elif hasattr(exc, 'exc_info'):
Except.throw_python_exception(*exc.exc_info)
else:
raise exc
def read_ValueRef(self, attr):
twod = self.twod
value_ref = twod.get_value_ref()
if value_ref.error:
Except.throw_python_exception(*value_ref.exc_info)
use_cache = twod.is_in_operation() and not self.Force_HW_Read
state = twod.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr,
value=value_ref.value,
quality=quality,
timestamp=value_ref.timestamp,
priority=0)
def read_CurrentValue(self, attr):
zerod = self.zerod
#use_cache = ct.is_action_running() and not self.Force_HW_Read
use_cache = self.get_state() == State.Moving and not self.Force_HW_Read
value = zerod.get_current_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
quality = None
state = zerod.get_state(cache=use_cache, propagate=0)
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr,
value=value.value,
quality=quality,
priority=0,
timestamp=value.timestamp)
def read_Position(self, attr):
# if motors are moving their position is already being updated with a
# high frequency so don't bother overloading and just get the cached
# values
motor_group = self.motor_group
use_cache = motor_group.is_in_operation() and not self.Force_HW_Read
position = motor_group.get_position(cache=use_cache, propagate=0)
if position.error:
Except.throw_python_exception(*position.exc_info)
state = motor_group.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=position.value, w_value=position.w_value,
quality=quality, priority=0,
timestamp=position.timestamp)
def read_Value(self, attr):
twod = self.twod
# TODO: decide if we force the controller developers to store the
# last acquired value in the controllers or we always will use
# cache. This is due to the fact that the clients (MS) read the value
# after the acquisition had finished.
use_cache = twod.is_in_operation() and not self.Force_HW_Read
value = twod.get_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
state = twod.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=value.value, quality=quality,
timestamp=value.timestamp, priority=0)
def read_Value(self, attr):
twod = self.twod
# TODO: decide if we force the controller developers to store the
# last acquired value in the controllers or we always will use
# cache. This is due to the fact that the clients (MS) read the value
# after the acquisition had finished.
use_cache = twod.is_in_operation() and not self.Force_HW_Read
value = twod.get_value(cache=use_cache, propagate=0)
if value.error:
Except.throw_python_exception(*value.exc_info)
state = twod.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr, value=value.value, quality=quality,
timestamp=value.timestamp, priority=0)
def read_Position(self, attr):
# if motors are moving their position is already being updated with a
# high frequency so don't bother overloading and just get the cached
# values
motor_group = self.motor_group
use_cache = motor_group.is_in_operation() and not self.Force_HW_Read
position = motor_group.get_position(cache=use_cache, propagate=0)
if position.error:
Except.throw_python_exception(*position.exc_info)
state = motor_group.get_state(cache=use_cache, propagate=0)
quality = None
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
self.set_attribute(attr,
value=position.value,
w_value=position.w_value,
quality=quality,
priority=0,
timestamp=position.timestamp)
def read_Value(self, attr):
pseudo_counter = self.pseudo_counter
use_cache = pseudo_counter.is_in_operation() and not self.Force_HW_Read
value_attr = pseudo_counter.get_value(cache=use_cache, propagate=0)
# first obtain the value - during this process it may
# enter into the error state, either when updating the elements
# values or when calculating the pseudo value
value = value_attr.value
if value_attr.error:
Except.throw_python_exception(*value_attr.exc_info)
quality = None
state = pseudo_counter.get_state(cache=use_cache, propagate=0)
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
timestamp = value_attr.value
self.set_attribute(attr,
value=value,
quality=quality,
priority=0,
timestamp=timestamp)
def read_Value(self, attr):
pseudo_counter = self.pseudo_counter
use_cache = pseudo_counter.is_in_operation() and not self.Force_HW_Read
if not use_cache and self._first_read_cache:
use_cache = True
self._first_read_cache = False
value_attr = pseudo_counter.get_value(cache=use_cache, propagate=0)
# first obtain the value - during this process it may
# enter into the error state, either when updating the elements
# values or when calculating the pseudo value
value = value_attr.value
if value_attr.error:
Except.throw_python_exception(*value_attr.exc_info)
quality = None
state = pseudo_counter.get_state(cache=use_cache, propagate=0)
if state == State.Moving:
quality = AttrQuality.ATTR_CHANGING
timestamp = value_attr.timestamp
self.set_attribute(attr, value=value, quality=quality,
priority=0, timestamp=timestamp)
def read_Value(self, attr):
value = self.ior.get_value(cache=False)
if value.error:
Except.throw_python_exception(*value.exc_info)
self.set_attribute(attr, value=value.value, w_value=value.w_value,
priority=0, timestamp=value.timestamp)
