#!/usr/bin/env python
##############################################################################
##
# This file is part of Sardana
##
# http://www.sardana-controls.org/
##
# Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
# Sardana is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
##
# Sardana is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
##
# You should have received a copy of the GNU Lesser General Public License
# along with Sardana. If not, see <http://www.gnu.org/licenses/>.
##
##############################################################################
"""This module is part of the Python Pool library. It defines the base classes
for"""
__all__ = ["PoolMeasurementGroup", "MeasurementConfiguration",
"ControllerConfiguration", "ChannelConfiguration",
"SynchronizerConfiguration", "build_measurement_configuration"]
__docformat__ = 'restructuredtext'
import threading
import weakref
from taurus.core.tango.tangovalidator import TangoAttributeNameValidator
from sardana import State, ElementType, TYPE_EXP_CHANNEL_ELEMENTS
from sardana.sardanaevent import EventType
from sardana.pool.pooldefs import AcqMode, SynchParam, AcqSynch, \
SynchDomain, AcqSynchType
from sardana.util.string import camel_to_snake
from sardana.pool.poolgroupelement import PoolGroupElement
from sardana.pool.poolacquisition import PoolAcquisition
from sardana.pool.poolsynchronization import SynchDescription
from sardana.pool.poolexternal import PoolExternalObject
from sardana.taurus.core.tango.sardana import PlotType, Normalization
# ----------------------------------------------
# Measurement Group Configuration information
# ----------------------------------------------
# dict <str, obj> with (at least) keys:
# - 'controllers' : dict<Controller, dict> where:
# - key: ctrl
# - value: dict<str, dict> with (at least) keys:
# - 'timer' : the timer channel name / timer channel id
# - 'monitor' : the monitor channel name / monitor channel id
# - 'synchronization' : 'Gate'/'Software'
# - 'channels' where value is a dict<str, obj> with (at least)
# keys:
# - 'id' : the channel name ( channel id )
# optional keys:
# - 'enabled' : True/False (default is True)
# any hints:
# - 'output' : True/False (default is True)
# - 'plot_type' : 'No'/'1D'/'2D' (default is 'No')
# - 'plot_axes' : list<str> 'where str is channel
# name/'step#/'index#' (default is [])
# - 'label' : prefered label (default is channel name)
# - 'scale' : <float, float> with min/max (defaults to
# channel range if it is defined
# - 'plot_color' : int representing RGB
# optional keys:
# - 'label' : measurement group label (defaults to measurement group name)
# - 'description' : measurement group description
# <MeasurementGroupConfiguration>
# <timer>UxTimer</timer>
# <monitor>CT1</monitor>
# </MeasurementGroupConfiguration>
# Example: 2 NI cards, where channel 1 of card 1 is wired to channel 1 of
# card 2 at configuration time we should set:
# ni0ctrl.setCtrlPar(0, 'synchronization', AcqSynch.SoftwareTrigger)
# ni0ctrl.setCtrlPar(0, 'timer', 1) # channel 1 is the timer
# ni0ctrl.setCtrlPar(0, 'monitor', 4) # channel 4 is the monitor
# ni1ctrl.setCtrlPar(0, 'synchronization', AcqSynch.HardwareTrigger)
# ni1ctrl.setCtrlPar(0, 'master', 0)
# when we count for 1.5 seconds:
# ni1ctrl.Load(1.5)
# ni0ctrl.Load(1.5)
# ni1ctrl.Start()
# ni0ctrl.Start()
"""
"""
def _to_fqdn(name, logger=None):
full_name = name
# try to use Taurus 4 to retrieve FQDN
try:
from taurus.core.tango.tangovalidator import TangoDeviceNameValidator
full_name, _, _ = TangoDeviceNameValidator().getNames(name)
# if Taurus3 in use just continue
except ImportError:
pass
if full_name is None:
full_name = name
if full_name != name and logger:
msg = ("PQDN full name is deprecated in favor of FQDN full name."
" Re-apply configuration in order to upgrade.")
logger.warning(msg)
return full_name
def _filter_ctrls(ctrls, enabled=None):
if enabled is None:
return ctrls
filtered_ctrls = []
for ctrl in ctrls:
if ctrl.enabled == enabled:
filtered_ctrls.append(ctrl)
return filtered_ctrls
def _get_timerable_ctrls(ctrls, acq_synch=None, enabled=None):
timerable_ctrls = []
if acq_synch is None:
for ctrls in list(ctrls.values()):
timerable_ctrls += ctrls
elif isinstance(acq_synch, list):
acq_synch_list = acq_synch
for acq_synch in acq_synch_list:
timerable_ctrls += ctrls[acq_synch]
else:
timerable_ctrls = list(ctrls[acq_synch])
return _filter_ctrls(timerable_ctrls, enabled)
def _get_timerable_channels(ctrls, acq_synch=None, enabled=None):
timerable_ctrls = _get_timerable_ctrls(ctrls, acq_synch, enabled)
timerable_channels = []
for ctrl in timerable_ctrls:
timerable_channels.extend(ctrl.get_channels(enabled))
return timerable_channels
[docs]class ConfigurationItem(object):
"""Container of configuration attributes related to a given element.
Wrap an element to pretend its API.
Manage the element's configuration.
Hold an information whether the element is enabled.
By default it is enabled.
.. note::
The ConfigurationItem class has been included in Sardana
on a provisional basis. Backwards incompatible changes
(up to and including removal of the class) may occur if
deemed necessary by the core developers.
"""
def __init__(self, element, attrs=None):
"""Construct a wrapper around the element
:param element: element to wrap
:type element: obj
:param: attrs: configuration attributes and their values
:type attrs: dict
"""
self._element = weakref.ref(element)
self.enabled = True
if attrs is not None:
self.__dict__.update(attrs)
def __getattr__(self, item):
return getattr(self.element, item)
[docs] def get_element(self):
"""Returns the element associated with this item"""
return self._element()
[docs] def set_element(self, element):
"""Sets the element for this item"""
self._element = weakref.ref(element)
element = property(get_element)
[docs]class ControllerConfiguration(ConfigurationItem):
"""Container of configuration attributes related to a given controller.
Inherit behavior from
:class:`~sardana.pool.poolmeasurementgroup.ConfigurationItem`
and additionally hold information about its enabled/disabled channels.
By default it is disabled.
.. note::
The ControllerConfiguration class has been included in Sardana
on a provisional basis. Backwards incompatible changes
(up to and including removal of the class) may occur if
deemed necessary by the core developers.
"""
def __init__(self, element, attrs=None):
ConfigurationItem.__init__(self, element, attrs)
self.enabled = False
self._channels = []
self._channels_enabled = []
self._channels_disabled = []
[docs] def add_channel(self, channel_item):
"""Aggregate a channel configuration item."""
self._channels.append(channel_item)
if channel_item.enabled:
self.enabled = True
if self._channels_enabled is None:
self._channels_enabled = []
self._channels_enabled.append(channel_item)
else:
if self._channels_disabled is None:
self._channels_disabled = []
self._channels_disabled.append(channel_item)
[docs] def remove_channel(self, channel_item):
"""Remove a channel configuration item."""
self._channels.remove(channel_item)
if channel_item.enabled:
self._channels_enabled.remove(channel_item)
if len(self._channels_enabled) == 0:
self.enabled = False
else:
self._channels_disabled.remove(channel_item)
[docs] def update_state(self):
"""Update internal state based on the aggregated channels."""
self.enabled = False
self._channels_enabled = []
self._channels_disabled = []
for channel_item in self._channels:
if channel_item.enabled:
self.enabled = True
self._channels_enabled.append(channel_item)
else:
self._channels_disabled.append(channel_item)
[docs] def get_channels(self, enabled=None):
"""Return aggregated channels.
:param enabled: which channels to return
- True - only enabled
- False - only disabled
- None - all
:type enabled: bool or None
"""
if enabled is None:
return list(self._channels)
elif enabled:
return list(self._channels_enabled)
else:
return list(self._channels_disabled)
[docs] def validate(self):
pass
[docs]class TimerableControllerConfiguration(ControllerConfiguration):
"""Container of configuration attributes related to a given
timerable controller.
Inherit behavior from
:class:`~sardana.pool.poolmeasurementgroup.ControllerConfiguration`
and additionally validate *timer* and *monitor* configuration.
.. note::
The TimerableControllerConfiguration class has been included in
Sardana on a provisional basis. Backwards incompatible changes
(up to and including removal of the class) may occur if
deemed necessary by the core developers.
"""
[docs] def update_timer(self):
self._update_master("timer")
[docs] def update_monitor(self):
self._update_master("monitor")
def _update_master(self, role):
master = getattr(self, role, None)
if master is None:
idx = float("+inf")
for channel in self._channels_enabled:
if channel.index > idx:
continue
master = channel
idx = channel.index
else:
found = False
for channel in self._channels:
if channel.full_name == master:
master = channel
found = True
break
if not found:
master = None
setattr(self, role, master)
[docs] def validate(self):
# validate if the timer and monitor are disabled if the
# controller is enabled
if self.enabled \
and not self.timer.enabled \
and not self.monitor.enabled:
err_msg = 'channel {0} used as timer and channel ' \
'{1} used as monitor are disabled. One of them ' \
'must be enabled.'.format(self.timer.name,
self.monitor.name)
raise ValueError(err_msg)
[docs]class ExternalControllerConfiguration(ControllerConfiguration):
"""Container of configuration attributes related to a given
external controller.
Inherit behavior from
:class:`~sardana.pool.poolmeasurementgroup.ControllerConfiguration`.
.. note::
The ExternalControllerConfiguration class has been included in
Sardana on a provisional basis. Backwards incompatible changes
(up to and including removal of the class) may occur if
deemed necessary by the core developers.
"""
def __init__(self, element, attrs=None):
ControllerConfiguration.__init__(self, self, attrs)
self.full_name = element
[docs]class ChannelConfiguration(ConfigurationItem):
"""Container of configuration attributes related to a given
experimental channel.
Inherit behavior from
:class:`~sardana.pool.poolmeasurementgroup.ConfigurationItem`.
.. note::
The ChannelConfiguration class has been included in
Sardana on a provisional basis. Backwards incompatible changes
(up to and including removal of the class) may occur if
deemed necessary by the core developers.
"""
[docs]class SynchronizerConfiguration(ConfigurationItem):
"""Container of configuration attributes related to a given
synchronizer element.
Inherit behavior from
:class:`~sardana.pool.poolmeasurementgroup.ConfigurationItem`.
By default it is disabled.
.. note::
The ChannelConfiguration class has been included in
Sardana on a provisional basis. Backwards incompatible changes
(up to and including removal of the class) may occur if
deemed necessary by the core developers.
"""
def __init__(self, element, attrs=None):
ConfigurationItem.__init__(self, element, attrs)
self.enabled = False
[docs]def build_measurement_configuration(user_elements):
"""Create a minimal measurement configuration data structure from the
user_elements list.
.. highlight:: none
Minimal configuration data structure::
dict <str, dict> with keys:
- 'controllers' : where value is a dict<str, dict> where:
- key: controller's full name
- value: dict<str, dict> with keys:
- 'channels' where value is a dict<str, obj> where:
- key: channel's full name
- value: dict<str, obj> with keys:
- 'index' : where value is the channel's index <int>
.. highlight:: default
.. note::
The build_measurement_configuration function has been included in
Sardana on a provisional basis. Backwards incompatible changes
(up to and including removal of the function) may occur if
deemed necessary by the core developers.
"""
user_config = {}
external_user_elements = []
user_config["controllers"] = controllers = {}
for index, element in enumerate(user_elements):
elem_type = element.get_type()
if elem_type == ElementType.External:
external_user_elements.append((index, element))
continue
if elem_type == ElementType.TriggerGate:
continue
ctrl = element.controller
ctrl_data = controllers.get(ctrl.full_name)
if ctrl_data is None:
controllers[ctrl.full_name] = ctrl_data = {}
ctrl_data['channels'] = channels = {}
else:
channels = ctrl_data['channels']
channels[element.full_name] = channel_data = {}
channel_data['index'] = index
if len(external_user_elements) > 0:
controllers['__tango__'] = ctrl_data = {}
ctrl_data['channels'] = channels = {}
for index, element in external_user_elements:
channels[element.full_name] = channel_data = {}
channel_data['index'] = index
return user_config
[docs]class MeasurementConfiguration(object):
"""Configuration of a measurement.
Accepts import and export from/to a serializable data structure (based on
dictionaries/lists and strings).
Provides getter methods that facilitate extracting of information e.g.
controllers of different types, master timers/monitors, etc.
.. note::
The build_measurement_configuration function has been included in
Sardana on a provisional basis. Backwards incompatible changes
(up to and including removal of the function) may occur if
deemed necessary by the core developers.
"""
DFT_DESC = 'General purpose measurement configuration'
def __init__(self, parent=None):
"""Initialize measurement configuration object
:param parent: (optional) object that this measurement configuration
refers to (usually
:class:`~sardana.pool.poolmeasurementgroup.PoolMeasurementGroup)`
"""
self._parent = None
if parent is not None:
self._parent = weakref.proxy(parent)
self._config = None
# Structure to store the controllers and their channels
self._timerable_ctrls = {}
self._zerod_ctrls = []
self._synch_ctrls = {}
self._other_ctrls = []
self._master_timer_sw = None
self._master_monitor_sw = None
self._master_timer_sw_start = None
self._master_monitor_sw_start = None
self._label = None
self._description = None
self._user_config = {}
self._channel_acq_synch = {}
self._ctrl_acq_synch = {}
self.changed = False
# provide back. compatibility for value_ref_{enabled,pattern}
# config parameters created with Sardana < 3.
self._value_ref_compat = False
# provide back. compatibility for synchronizer, timer and monitor
# config parameters set on external channels created with Sardana < 3.
self._external_ctrl_compat = False
[docs] def get_acq_synch_by_channel(self, channel):
"""Return acquisition synchronization configured for this element.
:param channel: channel to look for its acquisition synchronization
:type channel: :class:`~sardana.pool.poolbasechannel.PoolBaseChannel`
or :class:`~sardana.pool.poolmeasurementgroup.ChannelConfiguration`
:return: acquisition synchronization
:rtype: :obj:`~sardana.pool.pooldefs.AcqSynch`
"""
if isinstance(channel, ChannelConfiguration):
channel = channel.element
return self._channel_acq_synch[channel]
[docs] def get_acq_synch_by_controller(self, controller):
"""Return acquisition synchronization configured for this controller.
:param controller: controller to look for its acquisition
synchronization
:type controller: :class:`~sardana.pool.poolcontroller.PoolController`
or :class:`~sardana.pool.poolmeasurementgroup.ControllerConfiguration`
:return: acquisition synchronization
:rtype: :obj:`~sardana.pool.pooldefs.AcqSynch`
"""
if isinstance(controller, ConfigurationItem):
controller = controller.element
return self._ctrl_acq_synch[controller]
[docs] def get_timerable_ctrls(self, acq_synch=None, enabled=None):
"""Return timerable controllers.
Allow to filter controllers based on acquisition synchronization or
whether these are enabled/disabled.
:param acq_synch: (optional) filter controller based on acquisition
synchronization
:type acq_synch: :class:`~sardana.pool.pooldefs.AcqSynch`
:param enabled: (optional) filter controllers whether these are
enabled/disabled:
- :obj:`True` - enabled only
- :obj:`False` - disabled only
- :obj:`None` - all
:type enabled: :obj:`bool` or :obj:`None`
:return: timerable controllers that fulfils the filtering criteria
:rtype: list<:class:`~sardana.pool.poolmeasurementgroup.ControllerConfiguration`> # noqa
"""
return _get_timerable_ctrls(self._timerable_ctrls, acq_synch, enabled)
[docs] def get_timerable_channels(self, acq_synch=None, enabled=None):
"""Return timerable channels.
Allow to filter channels based on acquisition synchronization or
whether these are enabled/disabled.
:param acq_synch: (optional) filter controller based on acquisition
synchronization
:type acq_synch: :class:`~sardana.pool.pooldefs.AcqSynch`
:param enabled: (optional) filter controllers whether these are
enabled/disabled:
- :obj:`True` - enabled only
- :obj:`False` - disabled only
- :obj:`None` - all
:type enabled: :obj:`bool` or :obj:`None`
:return: timerable channels that fulfils the filtering criteria
:rtype: list<:class:`~sardana.pool.poolmeasurementgroup.ChannelConfiguration`> # noqa
"""
return _get_timerable_channels(self._timerable_ctrls, acq_synch,
enabled)
[docs] def get_zerod_ctrls(self, enabled=None):
"""Return 0D controllers.
Allow to filter controllers whether these are enabled/disabled.
:param enabled: (optional) filter controllers whether these are
enabled/disabled:
- :obj:`True` - enabled only
- :obj:`False` - disabled only
- :obj:`None` - all
:type enabled: :obj:`bool` or :obj:`None`
:return: 0D controllers that fulfils the filtering criteria
:rtype: list<:class:`~sardana.pool.poolmeasurementgroup.ControllerConfiguration`> # noqa
"""
return _filter_ctrls(self._zerod_ctrls, enabled)
[docs] def get_synch_ctrls(self, enabled=None):
"""Return synchronizer (currently only trigger/gate) controllers.
Allow to filter controllers whether these are enabled/disabled.
:param enabled: (optional) filter controllers whether these are
enabled/disabled:
- :obj:`True` - enabled only
- :obj:`False` - disabled only
- :obj:`None` - all
:type enabled: :obj:`bool` or :obj:`None`
:return: synchronizer controllers that fulfils the filtering criteria
:rtype: list<:class:`~sardana.pool.poolmeasurementgroup.ControllerConfiguration`> # noqa
"""
return _filter_ctrls(self._synch_ctrls, enabled)
[docs] def get_synchs(self, enabled=None):
"""Return synchronizers (currently only trigger/gate).
Allow to filter synchronizers whether these are enabled/disabled.
:param enabled: (optional) filter synchronizers whether these are
enabled/disabled:
- :obj:`True` - enabled only
- :obj:`False` - disabled only
- :obj:`None` - all
:type enabled: :obj:`bool` or :obj:`None`
:return: synchronizers that fulfils the filtering criteria
:rtype: list<:class:`~sardana.pool.poolmeasurementgroup.SynchronizerConfiguration`> # noqa
"""
synchs = []
synch_ctrls = self.get_synch_ctrls(enabled)
for ctrl in synch_ctrls:
synchs.extend(ctrl.get_channels(enabled))
return synchs
[docs] def get_master_timer_software(self):
"""Return master timer in software acquisition.
:return: master timer in software acquisition
:rtype: :class:`~sardana.pool.poolmeasurementgroup.ChannelConfiguration` # noqa
"""
return self._master_timer_sw
[docs] def get_master_monitor_software(self):
"""Return master monitor in software acquisition.
:return: master monitor in software acquisition
:rtype: :class:`~sardana.pool.poolmeasurementgroup.ChannelConfiguration` # noqa
"""
return self._master_monitor_sw
[docs] def get_master_timer_software_start(self):
"""Return master timer in software start acquisition.
:return: master timer in software start acquisition
:rtype: :class:`~sardana.pool.poolmeasurementgroup.ChannelConfiguration` # noqa
"""
return self._master_monitor_sw_start
[docs] def get_master_monitor_software_start(self):
"""Return master monitor in software start acquisition.
:return: master monitor in software start acquisition
:rtype: :class:`~sardana.pool.poolmeasurementgroup.ChannelConfiguration` # noqa
"""
return self._master_timer_sw_start
[docs] def get_configuration_for_user(self):
"""Return measurement configuration serializable data structure."""
return self._user_config
[docs] def set_configuration_from_user(self, cfg):
"""Set measurement configuration from serializable data structure.
Setting of the configuration includes the validation process. Setting
of invalid configuration raises an exception and leaves the object
as it was before the setting process. Thanks to that it is not
necessary that the client application does the validation.
The configuration parameters for given channels/controllers may differ
depending on their types e.g. 0D channel does not support timer
parameter while C/T does.
.. todo::
Raise exceptions when setting _Synchronization_ parameter for
external channels, 0D and PSeudoCounters.
"""
if not self._parent._is_online(cfg):
self._parent.error("Some controllers of this measurement group are offline!")
# Return because it won't be possible to know the controller types.
# Before returning, assign "user configuration" to at least be able to
# read it from the client (spock etc.).
self._user_config = cfg
return
pool = self._parent.pool
label = cfg.get('label', self._parent.name)
description = cfg.get('description', self.DFT_DESC)
timerable_ctrls = {AcqSynch.HardwareGate: [],
AcqSynch.HardwareStart: [],
AcqSynch.HardwareTrigger: [],
AcqSynch.SoftwareStart: [],
AcqSynch.SoftwareTrigger: [],
AcqSynch.SoftwareGate: []}
zerod_ctrls = []
synch_ctrls = []
other_ctrls = []
master_timer_sw = None
master_monitor_sw = None
master_timer_sw_start = None
master_monitor_sw_start = None
master_timer_idx_sw = float("+inf")
master_monitor_idx_sw = float("+inf")
master_timer_idx_sw_start = float("+inf")
master_monitor_idx_sw_start = float("+inf")
user_elem_ids = {}
channel_acq_synch = {}
ctrl_acq_synch = {}
user_config = {}
user_config['controllers'] = {}
user_config['label'] = label
user_config['description'] = description
for ctrl_name, ctrl_data in list(cfg['controllers'].items()):
# backwards compatibility for measurement groups created before
# implementing feature-372:
# https://sourceforge.net/p/sardana/tickets/372/
# WARNING: this is one direction backwards compatibility - it just
# reads channels from the units, but does not write channels to the
# units back
if 'units' in ctrl_data:
ctrl_data = ctrl_data['units']['0']
# discard controllers which don't have items (garbage)
ch_count = len(ctrl_data['channels'])
if ch_count == 0:
continue
external = ctrl_name in ['__tango__']
if external:
ctrl = ctrl_name
else:
ctrl = pool.get_element_by_full_name(ctrl_name)
assert ctrl.get_type() == ElementType.Controller
user_config['controllers'][ctrl_name] = user_config_ctrl = {}
ctrl_conf = {}
conf_synch = None
# The external controllers should not have synchronizer
if external:
for parameter in ['synchronizer', 'timer', 'monitor']:
if parameter in ctrl_data:
if self._external_ctrl_compat:
msg = (
'{} is deprecated for external controllers '
'e.g. Tango, since 3.0.3. Re-apply configuration '
'in order to upgrade.'
).format(parameter)
self._parent.warning(msg)
else:
raise ValueError(
'External controller does not allow '
'to have {}'.format(parameter))
else:
synchronizer = ctrl_data.get('synchronizer', 'software')
if synchronizer is None or synchronizer == 'software':
ctrl_conf['synchronizer'] = 'software'
user_config_ctrl['synchronizer'] = 'software'
else:
user_config_ctrl['synchronizer'] = synchronizer
pool_synch = pool.get_element_by_full_name(synchronizer)
pool_synch_ctrl = pool_synch.controller
conf_synch_ctrl = None
conf_synch = None
for conf_ctrl_created in synch_ctrls:
if pool_synch_ctrl == conf_ctrl_created.element:
conf_synch_ctrl = conf_ctrl_created
for conf_synch_created in \
conf_ctrl_created.get_channels():
if pool_synch == conf_synch_created.element:
conf_synch = conf_synch_created
break
break
if conf_synch_ctrl is None:
conf_synch_ctrl = \
ControllerConfiguration(pool_synch_ctrl)
synch_ctrls.append(conf_synch_ctrl)
if conf_synch is None:
conf_synch = SynchronizerConfiguration(pool_synch)
conf_synch_ctrl.add_channel(conf_synch)
ctrl_conf['synchronizer'] = conf_synch
try:
synchronization = ctrl_data['synchronization']
except KeyError:
synchronization = AcqSynchType.Trigger
ctrl_conf['synchronization'] = synchronization
user_config_ctrl['synchronization'] = synchronization
acq_synch = None
if external:
ctrl_item = ExternalControllerConfiguration(ctrl)
elif ctrl.is_timerable():
is_software = synchronizer == 'software'
acq_synch = AcqSynch.from_synch_type(is_software,
synchronization)
ctrl_acq_synch[ctrl] = acq_synch
timer = ctrl_data.get("timer")
ctrl_conf["timer"] = timer
monitor = ctrl_data.get("monitor")
ctrl_conf["monitor"] = monitor
ctrl_item = TimerableControllerConfiguration(ctrl, ctrl_conf)
else:
ctrl_item = ControllerConfiguration(ctrl, ctrl_conf)
ctrl_enabled = False
if 'channels' in ctrl_data:
user_config_ctrl['channels'] = user_config_channel = {}
for ch_name, ch_data in list(ctrl_data['channels'].items()):
if external:
validator = TangoAttributeNameValidator()
full_name = ch_data.get('full_name', ch_name)
params = validator.getUriGroups(full_name)
params['pool'] = pool
channel = PoolExternalObject(**params)
else:
try:
channel = pool.get_element_by_full_name(ch_name)
except KeyError:
if not ch_data['enabled']:
user_config_channel[ch_name] = ch_data
continue
raise ValueError(
'{} is not defined'.format(ch_data['name']))
ch_data = self._fill_channel_data(channel, ch_data)
user_config_channel[ch_name] = ch_data
ch_item = ChannelConfiguration(channel, ch_data)
ch_item.controller = ctrl_item
ctrl_item.add_channel(ch_item)
if ch_item.enabled:
if external:
id_ = channel.full_name
else:
id_ = channel.id
user_elem_ids[ch_item.index] = id_
if ch_item.enabled:
ctrl_enabled = True
if acq_synch is not None:
channel_acq_synch[channel] = acq_synch
if not external and ctrl.is_timerable():
ctrl_item.update_timer()
ctrl_item.update_monitor()
msg_error = ''
if ctrl_item.timer is None:
timer_name = ctrl_data['timer']
ch_timer = pool.get_element_by_full_name(timer_name)
msg_error += 'Channel {0} is not present but used as ' \
'timer. '.format(ch_timer.name)
if ctrl_item.monitor is None:
monitor_name = ctrl_data['monitor']
ch_monitor = pool.get_element_by_full_name(monitor_name)
msg_error += 'Channel {0} is not present but used as ' \
'monitor.'.format(ch_monitor.name)
if len(msg_error) > 0:
raise ValueError(msg_error)
if ctrl_item.enabled:
user_config_ctrl['timer'] = ctrl_item.timer.full_name
user_config_ctrl['monitor'] = ctrl_item.monitor.full_name
else:
user_config_ctrl['timer'] = ctrl_data['timer']
user_config_ctrl['monitor'] = ctrl_data['monitor']
# Update synchronizer state
if ctrl_enabled and conf_synch is not None:
conf_synch.enabled = True
ctrl_item.validate()
if external:
other_ctrls.append(ctrl_item)
elif ctrl.is_timerable():
timerable_ctrls[acq_synch].append(ctrl_item)
# Find master timer/monitor the system take the channel with
# less index
if not ctrl_item.enabled:
# Skip controllers disabled
pass
elif acq_synch in (AcqSynch.SoftwareTrigger,
AcqSynch.SoftwareGate):
if ctrl_item.timer.index < master_timer_idx_sw:
master_timer_sw = ctrl_item.timer
master_timer_idx_sw = ctrl_item.timer.index
if ctrl_item.monitor.index < master_monitor_idx_sw:
master_monitor_sw = ctrl_item.monitor
master_monitor_idx_sw = ctrl_item.monitor.index
elif acq_synch == AcqSynch.SoftwareStart:
if ctrl_item.timer.index < master_timer_idx_sw_start:
master_timer_sw_start = ctrl_item.timer
master_timer_idx_sw_start = ctrl_item.timer.index
if ctrl_item.monitor.index < master_monitor_idx_sw_start:
master_monitor_sw_start = ctrl_item.monitor
master_monitor_idx_sw_start = ctrl_item.monitor.index
elif ctrl.get_ctrl_types()[0] == ElementType.ZeroDExpChannel:
zerod_ctrls.append(ctrl_item)
# Update synchronizer controller states
for conf_synch_ctrl in synch_ctrls:
conf_synch_ctrl.update_state()
mnt_grp_timer = cfg.get('timer')
if mnt_grp_timer is not None:
msg = ("global timer is deprecated since release 3.3.3 "
"Re-apply configuration in order to upgrade.")
self._parent.warning(msg)
mnt_grp_monitor = cfg.get('monitor')
if mnt_grp_monitor is not None:
msg = ("global monitor is deprecated since release 3.3.3 "
"Re-apply configuration in order to upgrade.")
self._parent.warning(msg)
# Update internals values
self._label = label
self._description = description
self._timerable_ctrls = timerable_ctrls
self._zerod_ctrls = zerod_ctrls
self._synch_ctrls = synch_ctrls
self._other_ctrls = other_ctrls
self._master_timer_sw = master_timer_sw
self._master_monitor_sw = master_monitor_sw
self._master_timer_sw_start = master_timer_sw_start
self._master_monitor_sw_start = master_monitor_sw_start
self._user_config = user_config
self._channel_acq_synch = channel_acq_synch
self._ctrl_acq_synch = ctrl_acq_synch
# sorted ids may not be consecutive (if a channel is disabled)
indexes = sorted(user_elem_ids.keys())
user_elem_ids_list = [user_elem_ids[idx] for idx in indexes]
for conf_synch_ctrl in synch_ctrls:
for conf_synch in conf_synch_ctrl.get_channels(enabled=True):
user_elem_ids_list.append(conf_synch.id)
self._parent.set_user_element_ids(user_elem_ids_list)
# force assignment of user elements to the measurement group
# in order to update the list of dependent elements (listeners)
# of the element e.g. to prevent undefinition of an element added
# to the measurement group.
self._parent.get_user_elements()
self.changed = True
def _fill_channel_data(self, channel, channel_data):
"""Fill channel default values for the given channel dictionary"""
name = channel.name
ctype = channel.get_type()
full_name = channel.full_name
# choose ndim
ndim = None
if ctype == ElementType.CTExpChannel:
ndim = 0
elif ctype == ElementType.PseudoCounter:
ndim = 0
elif ctype == ElementType.ZeroDExpChannel:
ndim = 0
elif ctype == ElementType.OneDExpChannel:
ndim = 1
elif ctype == ElementType.TwoDExpChannel:
ndim = 2
elif ctype == ElementType.External:
config = channel.get_config()
if config is not None:
ndim = int(config.data_format)
elif ctype == ElementType.IORegister:
ndim = 0
if ctype != ElementType.External and channel.is_referable():
value_ref_enabled = channel_data.get('value_ref_enabled', False)
channel_data['value_ref_enabled'] = value_ref_enabled
value_ref_pattern = channel_data.get('value_ref_pattern', '')
channel_data['value_ref_pattern'] = value_ref_pattern
elif 'value_ref_enabled' in channel_data or 'value_ref_pattern' in \
channel_data:
if self._value_ref_compat:
msg = 'value_ref_pattern/value_ref_enabled is deprecated ' \
'for non-referable channels since 3.0.3. Re-apply ' \
'configuration in order to upgrade.'
self._parent.warning(msg)
channel_data.pop('value_ref_enabled', None)
channel_data.pop('value_ref_pattern', None)
else:
msg = ('The channel {} is not referable. You can not set '
'the enabled and/or the pattern parameters.').format(
name)
raise ValueError(msg)
# Definitively should be initialized by measurement group
# index MUST be here already (asserting this in the following line)
channel_data['index'] = channel_data['index']
channel_data['name'] = channel_data.get('name', name)
channel_data['full_name'] = channel_data.get('full_name', full_name)
channel_data['source'] = channel.get_source()
channel_data['enabled'] = channel_data.get('enabled', True)
channel_data['label'] = channel_data.get('label', channel_data['name'])
channel_data['ndim'] = ndim
# Probably should be initialized by measurement group
channel_data['output'] = channel_data.get('output', True)
# Perhaps should NOT be initialized by measurement group
channel_data['plot_type'] = channel_data.get('plot_type', PlotType.No)
channel_data['plot_axes'] = channel_data.get('plot_axes', [])
channel_data['conditioning'] = channel_data.get('conditioning', '')
channel_data['normalization'] = channel_data.get('normalization',
Normalization.No)
# TODO: think of filling other keys: data_type, data_units, nexus_path
# here instead of feeling them on the Taurus extension level
if ctype != ElementType.External:
ctrl_name = channel.controller.full_name
channel_data['_controller_name'] = channel_data.get(
'_controller_name', ctrl_name)
return channel_data
[docs]class PoolMeasurementGroup(PoolGroupElement):
def __init__(self, **kwargs):
self._state_lock = threading.Lock()
self._monitor_count = None
self._nb_starts = 1
self._pending_starts = 0
self._acquisition_mode = AcqMode.Timer
self._config = MeasurementConfiguration(self)
self._moveable = None
self._moveable_obj = None
# by default software synchronizer initial domain is set to Position
self._software_synchronizer_initial_domain = SynchDomain.Position
self._synch_description = SynchDescription()
kwargs['elem_type'] = ElementType.MeasurementGroup
PoolGroupElement.__init__(self, **kwargs)
configuration = kwargs.get("configuration")
if configuration is None:
user_elements = self.get_user_elements()
configuration = build_measurement_configuration(user_elements)
self.set_configuration_from_user(configuration)
[docs] def init_attribute_values(self, attr_values=None):
"""Initialize attributes with values.
Set values to attributes as passed in `attr_values`.
In lack of attribute value do nothing.
:param attr_values: map of attribute names and values
:type attr_values: `dict` {`str`: `object`}
"""
super().init_attribute_values(attr_values)
if attr_values is None:
attr_values = {}
attr_name = "Configuration"
configuration = attr_values.pop(attr_name, None)
if configuration is not None:
self._config._value_ref_compat = True
self._config._external_ctrl_compat = True
try:
self._config.set_configuration_from_user(configuration)
except:
self._failed_init_attrs.append(attr_name)
self.debug(
"{} failed to init with {}".format(attr_name, configuration),
exc_info=True
)
finally:
self._config._value_ref_compat = False
self._config._external_ctrl_compat = False
attrs = [
"AcquisitionMode",
"SoftwareSynchronizerInitialDomain",
"Moveable"
]
for attr_name in attrs:
value = attr_values.pop(attr_name, None)
if value is not None:
prop_name = camel_to_snake(attr_name)
try:
setattr(self, prop_name, value)
except:
self._failed_init_attrs.append(attr_name)
self.debug(
"{} failed to init with {}".format(attr_name, value),
exc_info=True
)
def _create_action_cache(self):
acq_name = "%s.Acquisition" % self._name
return PoolAcquisition(self, acq_name)
def _calculate_states(self, state_info=None):
state, status = PoolGroupElement._calculate_states(self, state_info)
# check if software synchronizer is occupied
synch_soft = self.acquisition._synch._synch_soft
acq_sw = self.acquisition._sw_acq
acq_sw_start = self.acquisition._sw_start_acq
acq_0d = self.acquisition._0d_acq
if (state in (State.On, State.Unknown)
and (synch_soft.is_started()
or acq_sw._is_started()
or acq_sw_start._is_started()
or acq_0d._is_started())):
state = State.Moving
status += "\nSoftware synchronization is in progress"
return state, status
[docs] def on_element_changed(self, evt_src, evt_type, evt_value):
name = evt_type.name
if name == 'state':
with self._state_lock:
state, status = self._calculate_states()
self.set_state(state, propagate=2)
self.set_status("\n".join(status))
[docs] def get_pool_controllers(self):
return self.get_acquisition().get_pool_controllers()
[docs] def get_pool_controller_by_name(self, name):
name = name.lower()
for ctrl in self.get_pool_controllers():
if ctrl.name.lower() == name or ctrl.full_name.lower() == name:
return ctrl
[docs] def add_user_element(self, element, index=None):
'''Override the base behavior, so the TriggerGate elements are silently
skipped if used multiple times in the group'''
user_elements = self._user_elements
if element in user_elements:
# skipping TriggerGate element if already present
if element.get_type() is ElementType.TriggerGate:
return
return PoolGroupElement.add_user_element(self, element, index)
[docs] def rename_element(self, old_name, new_name, propagate=1):
"""Rename element in the controller.
:param old_name: old name of the element
:type old_name: :obj:`str`
:param new_name: new name of the element
:type new_name: :obj:`str`
:param propagate: 0 for not propagating, 1 to propagate,
2 propagate with priority
:type propagate: :obj:`int`
"""
self._config['label'] = new_name
self.fire_event(EventType("configuration", priority=propagate),
self._config)
# -------------------------------------------------------------------------
# configuration
# -------------------------------------------------------------------------
def _is_internal_element(self, element_id):
if self.pool.use_numeric_element_ids:
return isinstance(element_id, int)
try:
# at this time all internal physical and pseudo elements
# should be already created
self.pool.get_element(id=element_id)
except:
return False
return True
def _is_managed_element(self, element):
element_type = element.get_type()
return (element_type in TYPE_EXP_CHANNEL_ELEMENTS or
element_type is ElementType.TriggerGate)
@property
def configuration(self):
return self._config
# TODO: Check if it needed
[docs] def set_configuration(self, config=None, propagate=1):
self._config.configuration = config
if not propagate:
return
self.fire_event(EventType("configuration", priority=propagate),
config)
[docs] def set_configuration_from_user(self, cfg, propagate=1):
old_ctrls = self.get_pool_controllers()
self._config.set_configuration_from_user(cfg)
new_ctrls = self.get_pool_controllers()
if set(old_ctrls) != set(new_ctrls):
self.fire_event(EventType("latencytime", priority=1),
self.latency_time)
if not propagate:
return
self.fire_event(EventType("configuration", priority=propagate),
self._config.get_configuration_for_user())
[docs] def get_user_configuration(self):
return self._config.get_configuration_for_user()
# -------------------------------------------------------------------------
# integration time
# -------------------------------------------------------------------------
[docs] def get_integration_time(self):
return self._synch_description.integration_time
[docs] def set_integration_time(self, integration_time, propagate=1):
total_time = integration_time + self.latency_time
synch = [{SynchParam.Delay: {SynchDomain.Time: 0},
SynchParam.Active: {SynchDomain.Time: integration_time},
SynchParam.Total: {SynchDomain.Time: total_time},
SynchParam.Repeats: 1}]
self.set_synch_description(synch, propagate)
integration_time = property(get_integration_time, set_integration_time,
doc="the current integration time")
# -------------------------------------------------------------------------
# monitor count
# -------------------------------------------------------------------------
[docs] def get_monitor_count(self):
return self._monitor_count
[docs] def set_monitor_count(self, monitor_count, propagate=1):
self._monitor_count = monitor_count
if not propagate:
return
self.fire_event(EventType("monitor_count", priority=propagate),
monitor_count)
monitor_count = property(get_monitor_count, set_monitor_count,
doc="the current monitor count")
# -------------------------------------------------------------------------
# acquisition mode
# -------------------------------------------------------------------------
[docs] def get_acquisition_mode(self):
return self._acquisition_mode
[docs] def set_acquisition_mode(self, acquisition_mode, propagate=1):
self._acquisition_mode = acquisition_mode
if not propagate:
return
self.fire_event(EventType("acquisition_mode", priority=propagate),
acquisition_mode)
acquisition_mode = property(get_acquisition_mode, set_acquisition_mode,
doc="the current acquisition mode")
# -------------------------------------------------------------------------
# synch_description
# -------------------------------------------------------------------------
[docs] def get_synch_description(self):
return self._synch_description
[docs] def set_synch_description(self, description, propagate=1):
self._synch_description = \
SynchDescription(description)
if not propagate:
return
try:
integration_time = self._synch_description.integration_time
except:
integration_time = None
self.fire_event(EventType("integration_time", priority=propagate),
integration_time)
self.fire_event(EventType("synch_description", priority=propagate),
description)
synch_description = property(get_synch_description, set_synch_description,
doc="the current synchronization description")
# -------------------------------------------------------------------------
# moveable
# -------------------------------------------------------------------------
[docs] def get_moveable(self):
return self._moveable
[docs] def set_moveable(self, moveable, propagate=1, to_fqdn=True):
self._moveable = moveable
if self._moveable is None:
self._moveable_obj = None
else:
if to_fqdn:
moveable = _to_fqdn(moveable, logger=self)
self._moveable_obj = self.pool.get_element_by_full_name(moveable)
self.fire_event(EventType("moveable", priority=propagate),
moveable)
moveable = property(get_moveable, set_moveable,
doc="moveable source used in synchronization "
"description")
# -------------------------------------------------------------------------
# latency time
# -------------------------------------------------------------------------
[docs] def get_latency_time(self):
latency_time = 0
pool_ctrls = self.get_pool_controllers()
for pool_ctrl in pool_ctrls:
if not pool_ctrl.is_timerable():
continue
candidate = pool_ctrl.get_ctrl_par("latency_time")
if candidate > latency_time:
latency_time = candidate
return latency_time
latency_time = property(get_latency_time,
doc="latency time between two consecutive "
"acquisitions")
# -------------------------------------------------------------------------
# software synchronizer initial domain
# -------------------------------------------------------------------------
[docs] def get_software_synchronizer_initial_domain(self):
return self._software_synchronizer_initial_domain
[docs] def set_software_synchronizer_initial_domain(self, domain):
self._software_synchronizer_initial_domain = domain
software_synchronizer_initial_domain = property(
get_software_synchronizer_initial_domain,
set_software_synchronizer_initial_domain,
doc="software synchronizer initial domain (SynchDomain.Time "
"or SynchDomain.Position)"
)
# -------------------------------------------------------------------------
# number of starts
# -------------------------------------------------------------------------
[docs] def get_nb_starts(self):
return self._nb_starts
[docs] def set_nb_starts(self, nb_starts, propagate=1):
self._nb_starts = nb_starts
if not propagate:
return
self.fire_event(EventType("nb_starts", priority=propagate),
nb_starts)
nb_starts = property(get_nb_starts, set_nb_starts,
doc="current number of starts")
# -------------------------------------------------------------------------
# acquisition
# -------------------------------------------------------------------------
[docs] def prepare(self):
"""Prepare for measurement.
Delegate measurement preparation to the acquisition action.
"""
if len(self.get_user_elements()) == 0:
# All channels were disabled
raise RuntimeError('All channels in measurement group '
'are disabled.')
if self._acquisition_mode == AcqMode.Timer:
role = 'timer'
elif self._acquisition_mode == AcqMode.Monitor:
role = 'monitor'
else:
raise RuntimeError('acquisition mode must be either Timer '
'or Monitor')
for ctrl in self._config.get_timerable_ctrls(enabled=True):
master = getattr(ctrl, role, None)
if master is None:
msg = ('controller {0} does not have {1} '
'configured.').format(ctrl.name, role)
raise RuntimeError(msg)
if not master.enabled:
msg = 'channel {0} used as {1} must be enabled'.format(
master.name, role)
raise RuntimeError(msg)
value = self._get_value()
self._pending_starts = self.nb_starts
self.acquisition.prepare(self.configuration,
self.acquisition_mode,
value,
self._synch_description,
self._moveable_obj,
self.software_synchronizer_initial_domain,
self.nb_starts)
[docs] def start_acquisition(self, value=None):
"""Start measurement.
Delegate start measurement to the acquisition action.
Provide backwards compatibility for starts without previous prepare.
"""
if self._pending_starts == 0:
msg = "prepare is mandatory before starting acquisition"
raise RuntimeError(msg)
self._stopped = False
self._aborted = False
self._released = False
self._pending_starts -= 1
if not self._simulation_mode:
self.acquisition.run()
def _get_value(self):
if self._acquisition_mode is AcqMode.Timer:
value = self.get_integration_time()
elif self.acquisition_mode is AcqMode.Monitor:
value = self._monitor_count
return value
[docs] def set_acquisition(self, acq_cache):
self.set_action_cache(acq_cache)
[docs] def get_acquisition(self):
return self.get_action_cache()
acquisition = property(get_acquisition, doc="acquisition object")
[docs] def stop(self):
self._pending_starts = 0
self.acquisition._synch._synch_soft.stop()
PoolGroupElement.stop(self)
[docs] def abort(self):
self._pending_starts = 0
self.acquisition._synch._synch_soft.abort()
PoolGroupElement.abort(self)
# -------------------------------------------------------------------------
# utils
# -------------------------------------------------------------------------
def _is_online(self, cfg):
pool = self.pool
for ctrl_name in cfg['controllers']:
external = ctrl_name in ['__tango__']
if not external:
ctrl = pool.get_element_by_full_name(ctrl_name)
if not ctrl.is_online():
return False
return True
# --------------------------------------------------------------------------
# release
# --------------------------------------------------------------------------
[docs] def release(self):
# override PoolBaseElement.releaes() cause the PoolAcquisition action
# is composed from many sub-actions and the default
# PoolBaseElement.get_operation() is not able to get the top action
operation = self.acquisition
if not operation.is_running():
self.warning("Operation is not running, can not release")
return
self._released = True
self._state_event = None
self.info("Release!")
operation.release_action()