def validate(self): # pylint: disable=too-many-branches
if not daq:
raise ImportError(import_error_mesg)
self._results = None
self._metrics = set()
if self.labels:
if len(self.labels) != len(self.resistor_values):
raise ConfigError('Number of DAQ port labels does not match the number of resistor values.')
duplicates = set([x for x in self.labels if self.labels.count(x) > 1])
if len(duplicates) > 0:
raise ConfigError('Duplicate labels: {}'.format(', '.join(duplicates)))
else:
self.labels = ['PORT_{}'.format(i) for i, _ in enumerate(self.resistor_values)]
self.server_config = ServerConfiguration(host=self.server_host,
port=self.server_port)
self.device_config = DeviceConfiguration(device_id=self.device_id,
v_range=self.v_range,
dv_range=self.dv_range,
sampling_rate=self.sampling_rate,
resistor_values=self.resistor_values,
channel_map=self.channel_map,
labels=self.labels)
try:
self.server_config.validate()
self.device_config.validate()
except ConfigurationError, ex:
raise ConfigError('DAQ configuration: ' + ex.message) # Re-raise as a WA error
def validate(self):
if not daq:
raise ImportError(import_error_mesg)
self._results = None
self._metrics = set()
if self.labels:
if not (len(self.labels) == len(self.resistor_values)): # pylint: disable=superfluous-parens
raise ConfigError(
'Number of DAQ port labels does not match the number of resistor values.'
)
else:
self.labels = [
'PORT_{}'.format(i) for i, _ in enumerate(self.resistor_values)
]
self.server_config = ServerConfiguration(host=self.server_host,
port=self.server_port)
self.device_config = DeviceConfiguration(
device_id=self.device_id,
v_range=self.v_range,
dv_range=self.dv_range,
sampling_rate=self.sampling_rate,
resistor_values=self.resistor_values,
channel_map=self.channel_map,
labels=self.labels)
try:
self.server_config.validate()
self.device_config.validate()
except ConfigurationError, ex:
raise ConfigError('DAQ configuration: ' +
ex.message) # Re-raise as a WA error
def __init__(
self,
target,
resistor_values, # pylint: disable=R0914
labels=None,
host='localhost',
port=45677,
device_id='Dev1',
v_range=2.5,
dv_range=0.2,
sample_rate_hz=10000,
channel_map=(0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22,
23),
keep_raw=False,
time_as_clock_boottime=True):
# pylint: disable=no-member
super(DaqInstrument, self).__init__(target)
self.keep_raw = keep_raw
self._need_reset = True
self._raw_files = []
self.tempdir = None
self.target_boottime_clock_at_start = 0.0
if DaqClient is None:
raise HostError(
'Could not import "daqpower": {}'.format(import_error_mesg))
if labels is None:
labels = ['PORT_{}'.format(i) for i in range(len(resistor_values))]
if len(labels) != len(resistor_values):
raise ValueError(
'"labels" and "resistor_values" must be of the same length')
self.daq_client = DaqClient(host, port)
try:
devices = self.daq_client.list_devices()
if device_id not in devices:
msg = 'Device "{}" is not found on the DAQ server. Available devices are: "{}"'
raise ValueError(msg.format(device_id, ', '.join(devices)))
except Exception as e:
raise HostError('Problem querying DAQ server: {}'.format(e))
self.device_config = DeviceConfiguration(
device_id=device_id,
v_range=v_range,
dv_range=dv_range,
sampling_rate=sample_rate_hz,
resistor_values=resistor_values,
channel_map=channel_map,
labels=labels)
self.sample_rate_hz = sample_rate_hz
self.time_as_clock_boottime = time_as_clock_boottime
self.add_channel('Time', 'time')
for label in labels:
for kind in ['power', 'voltage']:
self.add_channel(label, kind)
if time_as_clock_boottime:
host_path = os.path.join(PACKAGE_BIN_DIRECTORY, self.target.abi,
'get_clock_boottime')
self.clock_boottime_cmd = self.target.install_if_needed(
host_path, search_system_binaries=False)
def __init__(
self,
target,
resistor_values, # pylint: disable=R0914
labels=None,
host='localhost',
port=45677,
device_id='Dev1',
v_range=2.5,
dv_range=0.2,
sample_rate_hz=10000,
channel_map=(0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23),
):
# pylint: disable=no-member
super(DaqInstrument, self).__init__(target)
self._need_reset = True
self._raw_files = []
if execute_command is None:
raise HostError(
'Could not import "daqpower": {}'.format(import_error_mesg))
if labels is None:
labels = [
'PORT_{}'.format(i) for i in xrange(len(resistor_values))
]
if len(labels) != len(resistor_values):
raise ValueError(
'"labels" and "resistor_values" must be of the same length')
self.server_config = ServerConfiguration(host=host, port=port)
result = self.execute('list_devices')
if result.status == Status.OK:
if device_id not in result.data:
raise ValueError(
'Device "{}" is not found on the DAQ server.'.format(
device_id))
elif result.status != Status.OKISH:
raise HostError('Problem querying DAQ server: {}'.format(
result.message))
self.device_config = DeviceConfiguration(
device_id=device_id,
v_range=v_range,
dv_range=dv_range,
sampling_rate=sample_rate_hz,
resistor_values=resistor_values,
channel_map=channel_map,
labels=labels)
self.sample_rate_hz = sample_rate_hz
for label in labels:
for kind in ['power', 'voltage']:
self.add_channel(label, kind)
def configure(self, config_kwargs):
"""Configure the DAQ"""
if self.runner:
message = 'Configuring a new session before previous session has been terminated.'
self.logger.warning(message)
if self.runner.is_running:
self.runner.stop()
config = DeviceConfiguration(**config_kwargs)
config.validate()
self.output_directory = self._create_output_directory()
self.labels = config.labels
self.logger.info('Writing port files to %s', self.output_directory)
self.opened_files = OpenFileTracker()
self.runner = DaqRunner(config, self.output_directory)