def turn_off_port(self, port_id):
try:
oms_port_id = self.nodeCfgFile.GetOMSPortId(port_id)
except Exception as e:
raise PlatformConnectionException(
msg="Cannot turn_off_platform_port: %s" % str(e))
log.debug("%r: turning off port: port_id=%s oms port_id = %s",
self._platform_id, port_id, oms_port_id)
if self._rsn_oms is None:
raise PlatformConnectionException(
"Cannot turn_off_platform_port: _rsn_oms object required (created via connect() call)"
)
try:
response = self._rsn_oms.port.turn_off_platform_port(
self._platform_id, oms_port_id, 'CI - User')
except Exception as e:
raise PlatformConnectionException(
msg="Cannot turn_off_platform_port: %s" % str(e))
log.debug("%r: turn_off_platform_port response: %s", self._platform_id,
response)
dic_plat = self._verify_platform_id_in_response(response)
self._verify_port_id_in_response(oms_port_id, dic_plat)
return dic_plat # note: return the dic for the platform
def _send_massp_direct_access(self, command):
"""
Handle a direct access command. Driver expects direct access commands to specify the target
using the following format:
target:command
It then routes the command to the appropriate slave protocol.
@param command: Direct access command received
"""
err_string = 'Invalid command. Command must be in the following format: "target:command' + NEWLINE + \
'Valid targets are: %r' % self._slave_protocols.keys()
try:
target, command = command.split(DA_COMMAND_DELIMITER, 1)
target = target.lower()
except ValueError:
target = None
log.debug('_do_cmd_direct - target: %s command: %r', target, command)
if target not in self._slave_protocols:
self._driver_event(DriverAsyncEvent.DIRECT_ACCESS, err_string)
else:
self._slave_protocols[target]._protocol_fsm.on_event(
ProtocolEvent.EXECUTE_DIRECT, command)
def set_overcurrent_limit(self,port_id, milliamps, microseconds,src):
"""
"""
if self._rsn_oms is None:
raise PlatformConnectionException("Cannot set_overcurrent_limit: _rsn_oms object required (created via connect() call)")
if port_id not in self.nodeCfg.node_port_info :
raise PlatformConnectionException("Cannot set_overcurrent_limit: Invalid Port ID")
oms_port_cntl_id = self.nodeCfg.node_port_info[port_id]['port_oms_port_cntl_id']
# ok, now make the request to RSN OMS:
try:
retval = self._rsn_oms.port.set_over_current(self._platform_id,oms_port_cntl_id,int(milliamps),int(microseconds),src)
except Exception as e:
raise PlatformConnectionException(msg="Cannot set_overcurrent_limit: %s" % str(e))
log.debug("set_overcurrent_limit = %s", retval)
dic_plat = self._verify_platform_id_in_response(response)
self._verify_port_id_in_response(oms_port_id, dic_plat)
return dic_plat # note: return the dic for the platform
def get_nms_eng_data(self):
log.debug("%r: get_nms_eng_data...", self._platform_id)
ntp_time = ntplib.system_to_ntp_time(time.time())
attrs=list();
for streamKey,stream in sorted(self.nodeCfg.node_streams.iteritems()):
# log.debug("%r Stream(%s)", self._platform_id,streamKey)
for streamAttrKey,streamAttr in sorted(stream.iteritems()):
# log.debug("%r %r = %r", self._platform_id, streamAttrKey,streamAttr)
if 'lastRcvSampleTime' not in streamAttr : # first time this is called set this to a reasonable value
streamAttr['lastRcvSampleTime'] = ntp_time - streamAttr['monitor_cycle_seconds']*2
lastRcvSampleTime = streamAttr['lastRcvSampleTime']
if (lastRcvSampleTime+streamAttr['monitor_cycle_seconds'])<ntp_time : # if we think that the OMS will have data from us add it to the list
if (ntp_time-lastRcvSampleTime)>(streamAttr['monitor_cycle_seconds']*10) : #make sure we dont reach too far back by accident or will
lastRcvSampleTime=ntp_time-(streamAttr['monitor_cycle_seconds']*10) #clog up the OMS DB search
attrs.append((streamAttrKey,lastRcvSampleTime+0.1)) # add a little bit of time to the last recieved so we don't get one we alread have again
if len(attrs)>0 :
returnDict = self.get_attribute_values_from_oms(attrs) #go get the data from the OMS
for attr_id, attr_vals in returnDict.iteritems(): # go through the returned list of attributes
for streamKey,stream in sorted(self.nodeCfg.node_streams.iteritems()): #go through all the streams for this platform
if attr_id in stream : # see if this attribute is in this stream
for v, ts in attr_vals:
stream[attr_id]['lastRcvSampleTime']=ts
ionAttrs = self.convertAttrsToIon(stream,[(attr_id,v)]) #scale the attrs and convert the names to ion
pad_particle = Platform_Particle(ionAttrs,port_timestamp=ts)
pad_particle.set_internal_timestamp(timestamp=ts)
pad_particle._data_particle_type = streamKey # stream name
json_message = pad_particle.generate() # this cals parse values above to go from raw to values dict
event = {
'type': DriverAsyncEvent.SAMPLE,
'value': json_message,
'time': time.time()
}
self._send_event(event)
return 1
def get_attribute_values_from_oms(self,attrs):
"""
"""
if not isinstance(attrs, (list, tuple)):
raise PlatformException('get_attribute_values: attrs argument must be a '
'list [(attrName, from_time), ...]. Given: %s', attrs)
if self._rsn_oms is None:
raise PlatformConnectionException("Cannot get_platform_attribute_values: _rsn_oms object required (created via connect() call)")
log.debug("get_attribute_values: attrs=%s", self._platform_id)
log.debug("get_attribute_values: attrs=%s", attrs)
try:
retval = self._rsn_oms.attr.get_platform_attribute_values(self._platform_id,
attrs)
except Exception as e:
raise PlatformConnectionException(msg="get_attribute_values_from_oms Cannot get_platform_attribute_values: %s" % str(e))
if not self._platform_id in retval:
raise PlatformException("Unexpected: response get_attribute_values_from_oms does not include "
"requested platform '%s'" % self._platform_id)
attr_values = retval[self._platform_id]
if isinstance(attr_values,str):
raise PlatformException("Unexpected: response get_attribute_values_from_oms "
"'%s'" % attr_values )
# reported timestamps are already in NTP. Just return the dict:
return attr_values
def _set_params(self, *args, **kwargs):
"""
Issue commands to the instrument to set various parameters
@param args: arglist, should contain a dictionary of parameters/values to be set
"""
try:
params = args[0]
except IndexError:
raise InstrumentParameterException(
'Set command requires a parameter dict.')
self._verify_set_values(params)
self._verify_not_readonly(*args, **kwargs)
# if setting the output rate, get the current rate from the instrument first...
if Parameter.OUTPUT_RATE in params:
self._update_params()
old_config = self._param_dict.get_config()
# all constraints met or no constraints exist, set the values
for key, value in params.iteritems():
self._param_dict.set_value(key, value)
new_config = self._param_dict.get_config()
if not old_config == new_config:
log.debug('Config change: %r %r', old_config, new_config)
if old_config[Parameter.OUTPUT_RATE] is not None:
if int(old_config[Parameter.OUTPUT_RATE]) != int(
new_config[Parameter.OUTPUT_RATE]):
self._do_cmd_no_resp(
InstrumentCommand.NANO_SET_RATE,
int(new_config[Parameter.OUTPUT_RATE]))
self._driver_event(DriverAsyncEvent.CONFIG_CHANGE)
def _register_event_listener(self, url):
"""
Registers given url for all event types.
"""
self._verify_rsn_oms('_register_event_listener')
try:
already_registered = self._rsn_oms.event.get_registered_event_listeners(
)
except Exception as e:
raise PlatformConnectionException(
msg="%r: Cannot get registered event listeners: %s" %
(self._platform_id, e))
if url in already_registered:
log.debug("listener %r was already registered", url)
return
try:
result = self._rsn_oms.event.register_event_listener(url)
except Exception as e:
raise PlatformConnectionException(
msg="%r: Cannot register_event_listener: %s" %
(self._platform_id, e))
log.debug("%r: register_event_listener(%r) => %s", self._platform_id,
url, result)
def start_profiler_mission(self, mission_name, src):
def _verify_response(rsp):
try:
message = rsp[mission_name]
if not message.startswith('OK'):
raise PlatformException(
msg="Error in starting mission %s: %s" %
(mission_name, message))
except KeyError:
raise PlatformException(
msg="Error in starting mission response: %s" % rsp)
self._verify_rsn_oms('start_profiler_mission')
try:
response = self._rsn_oms.profiler.start_mission(
self._platform_id, mission_name, src)
except Exception as e:
raise PlatformConnectionException(
msg="Cannot start_profiler_mission: %s" % str(e))
log.debug("%r: start_profiler_mission response: %s", self._platform_id,
response)
dic_plat = self._verify_platform_id_in_response(response)
_verify_response(dic_plat)
return dic_plat # note: return the dic for the platform
def turn_off_port(self, port_id,src):
if self._rsn_oms is None:
raise PlatformConnectionException("Cannot turn_off_port: _rsn_oms object required (created via connect() call)")
if port_id not in self.nodeCfg.node_port_info :
raise PlatformConnectionException("Cannot turn_off_port: Invalid Port ID")
oms_port_cntl_id = self.nodeCfg.node_port_info[port_id]['port_oms_port_cntl_id']
log.debug("%r: turning off port: port_id=%s oms port_id = %s",
self._platform_id, port_id,oms_port_cntl_id)
if self._rsn_oms is None:
raise PlatformConnectionException("Cannot turn_off_platform_port: _rsn_oms object required (created via connect() call)")
try:
response = self._rsn_oms.port.turn_off_platform_port(self._platform_id,
oms_port_cntl_id,src)
except Exception as e:
raise PlatformConnectionException(msg="Cannot turn_off_platform_port: %s" % str(e))
log.debug("%r: turn_off_platform_port response: %s",
self._platform_id, response)
dic_plat = self._verify_platform_id_in_response(response)
return dic_plat # note: return the dic for the platform
def _register_event_listener(self, url):
"""
Registers given url for all event types.
"""
if self._rsn_oms is None:
raise PlatformConnectionException(
"Cannot _register_event_listener: _rsn_oms object required (created via connect() call)"
)
try:
already_registered = self._rsn_oms.event.get_registered_event_listeners(
)
except Exception as e:
raise PlatformConnectionException(
msg="%r: Cannot get registered event listeners: %s" %
(self._platform_id, e))
if url in already_registered:
log.debug("listener %r was already registered", url)
return
try:
result = self._rsn_oms.event.register_event_listener(url)
except Exception as e:
raise PlatformConnectionException(
msg="%r: Cannot register_event_listener: %s" %
(self._platform_id, e))
log.debug("%r: register_event_listener(%r) => %s", self._platform_id,
url, result)
def _construct_fsm(self, states=PlatformDriverState,
events=PlatformDriverEvent,
enter_event=PlatformDriverEvent.ENTER,
exit_event=PlatformDriverEvent.EXIT):
"""
Constructs the FSM for the driver. The preparations here are mostly
related with the UNCONFIGURED, DISCONNECTED, and CONNECTED state
transitions, with some common handlers for the CONNECTED state.
Subclasses can override to indicate specific parameters and add new
handlers (typically for the CONNECTED state).
"""
log.debug("constructing base platform driver FSM")
self._fsm = ThreadSafeFSM(states, events, enter_event, exit_event)
for state in PlatformDriverState.list():
self._fsm.add_handler(state, enter_event, self._common_state_enter)
self._fsm.add_handler(state, exit_event, self._common_state_exit)
# UNCONFIGURED state event handlers:
self._fsm.add_handler(PlatformDriverState.UNCONFIGURED, PlatformDriverEvent.CONFIGURE, self._handler_unconfigured_configure)
# DISCONNECTED state event handlers:
self._fsm.add_handler(PlatformDriverState.DISCONNECTED, PlatformDriverEvent.CONNECT, self._handler_disconnected_connect)
self._fsm.add_handler(PlatformDriverState.DISCONNECTED, PlatformDriverEvent.DISCONNECT, self._handler_disconnected_disconnect)
# CONNECTED state event handlers:
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.DISCONNECT, self._handler_connected_disconnect)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.CONNECTION_LOST, self._handler_connected_connection_lost)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.PING, self._handler_connected_ping)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.GET, self._handler_connected_get)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.SET, self._handler_connected_set)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.EXECUTE, self._handler_connected_execute)
def _handler_disconnected_connect(self, *args, **kwargs):
"""
Establish communications with the device via port agent / logger and
construct and initialize a protocol FSM for device interaction.
@return (next_state, result) tuple, (DriverConnectionState.CONNECTED, None) if successful.
@raises InstrumentConnectionException if the attempt to connect failed.
"""
self._build_protocol()
try:
for name, connection in self._connection.items():
connection.init_comms(self._slave_protocols[name].got_data,
self._slave_protocols[name].got_raw,
functools.partial(self._massp_got_config, name),
self._got_exception,
self._lost_connection_callback)
self._slave_protocols[name]._connection = connection
next_state = DriverConnectionState.CONNECTED
except InstrumentConnectionException as e:
log.error("Connection Exception: %s", e)
log.error("Instrument Driver remaining in disconnected state.")
if self._autoconnect:
next_state = DriverConnectionState.CONNECT_FAILED
else:
next_state = DriverConnectionState.DISCONNECTED
log.debug('_handler_disconnected_connect exit')
return next_state, None
def turn_off_port(self, port_id, src):
def _verify_response(rsp):
try:
message = rsp[port_id]
if not message.startswith('OK'):
raise PlatformException(msg="Error in turning off port %s: %s" % (port_id, message))
except KeyError:
raise PlatformException(msg="Error in turn off port response: %s" % rsp)
self._verify_rsn_oms('turn_off_port')
oms_port_cntl_id = self._verify_and_return_oms_port(port_id, 'turn_off_port')
log.debug("%r: turning off port: port_id=%s oms port_id = %s",
self._platform_id, port_id, oms_port_cntl_id)
try:
response = self._rsn_oms.port.turn_off_platform_port(self._platform_id,
oms_port_cntl_id, src)
except Exception as e:
raise PlatformConnectionException(msg="Cannot turn_off_platform_port: %s" % str(e))
response = self._convert_port_id_from_oms_to_ci(port_id, oms_port_cntl_id, response)
log.debug("%r: turn_off_platform_port response: %s",
self._platform_id, response)
dic_plat = self._verify_platform_id_in_response(response)
_verify_response(dic_plat)
return dic_plat # note: return the dic for the platform
def _verify_set_values(self, params):
"""
Verify supplied values are in range, if applicable
@param params: Dictionary of Parameter:value pairs to be verified
@throws InstrumentParameterException
"""
constraints = ParameterConstraint.dict()
parameters = Parameter.reverse_dict()
# step through the list of parameters
for key, val in params.iteritems():
# verify this parameter exists
if not Parameter.has(key):
raise InstrumentParameterException(
'Received invalid parameter in SET: %s' % key)
# if constraint exists, verify we have not violated it
constraint_key = parameters.get(key)
if constraint_key in constraints:
var_type, minimum, maximum = constraints[constraint_key]
constraint_string = 'Parameter: %s Value: %s Type: %s Minimum: %s Maximum: %s' % \
(key, val, var_type, minimum, maximum)
log.debug('SET CONSTRAINT: %s', constraint_string)
# attempt to cast val to target type
try:
val = var_type(val)
except ValueError:
raise InstrumentParameterException('Type mismatch: %s' %
constraint_string)
# now, verify we are within min/max
if not var_type == bool:
if val < minimum or val > maximum:
raise InstrumentParameterException('Out of range: %s' %
constraint_string)
def _handler_disconnected_connect(self, *args, **kwargs):
"""
Establish communications with the device via port agent / logger and
construct and initialize a protocol FSM for device interaction.
@return (next_state, result) tuple, (DriverConnectionState.CONNECTED, None) if successful.
@raises InstrumentConnectionException if the attempt to connect failed.
"""
self._build_protocol()
try:
for name, connection in self._connection.items():
connection.init_comms(
self._slave_protocols[name].got_data,
self._slave_protocols[name].got_raw,
functools.partial(self._massp_got_config, name),
self._got_exception, self._lost_connection_callback)
self._slave_protocols[name]._connection = connection
next_state = DriverConnectionState.CONNECTED
except InstrumentConnectionException as e:
log.error("Connection Exception: %s", e)
log.error("Instrument Driver remaining in disconnected state.")
if self._autoconnect:
next_state = DriverConnectionState.CONNECT_FAILED
else:
next_state = DriverConnectionState.DISCONNECTED
log.debug('_handler_disconnected_connect exit')
return next_state, None
def _disconnect(self, recursion=None):
CIOMSClientFactory.destroy_instance(self._rsn_oms)
self._rsn_oms = None
log.debug("%r: CIOMSClient instance destroyed", self._platform_id)
self._delete_scheduler()
self._scheduler = None
def _ping(self):
"""
Verifies communication with external platform returning "PONG" if
this verification completes OK.
@retval "PONG" iff all OK.
@raise PlatformConnectionException Cannot ping external platform or
got unexpected response.
"""
log.debug("%r: pinging OMS...", self._platform_id)
if self._rsn_oms is None:
raise PlatformConnectionException(
"Cannot ping: _rsn_oms object required (created via connect() call)"
)
try:
retval = self._rsn_oms.hello.ping()
except Exception as e:
raise PlatformConnectionException(msg="Cannot ping: %s" % str(e))
if retval is None or retval.upper() != "PONG":
raise PlatformConnectionException(
msg="Unexpected ping response: %r" % retval)
log.debug("%r: ping completed: response: %s", self._platform_id,
retval)
return "PONG"
def _build_scheduler(self):
"""
Remove any previously scheduled event, then generate an absolute trigger to schedule the next
scan in case we lose some data and the next scan isn't triggered by got_chunk.
"""
try:
self._remove_scheduler(ScheduledJob.TAKE_SCAN)
log.debug('Successfully removed existing scheduled event TAKE_SCAN.')
except KeyError as ke:
log.debug('KeyError: %s', ke)
# this formula was derived from testing, should yield a slightly higher time than the actual
# time required to collect a single scan.
delay = self._param_dict.get(Parameter.AP) / 9 / self._param_dict.get(Parameter.NF) + 5
if delay > 0:
dt = datetime.datetime.now() + datetime.timedelta(seconds=delay)
job_name = ScheduledJob.TAKE_SCAN
config = {
DriverConfigKey.SCHEDULER: {
job_name: {
DriverSchedulerConfigKey.TRIGGER: {
DriverSchedulerConfigKey.TRIGGER_TYPE: TriggerType.ABSOLUTE,
DriverSchedulerConfigKey.DATE: dt
},
}
}
}
self.set_init_params(config)
self._add_scheduler_event(ScheduledJob.TAKE_SCAN, ProtocolEvent.TIMEOUT)
def _verify_set_values(self, params):
"""
Verify supplied values are in range, if applicable
@param params: Dictionary of Parameter:value pairs to be verified
@throws InstrumentParameterException
"""
constraints = ParameterConstraint.dict()
parameters = Parameter.reverse_dict()
# step through the list of parameters
for key, val in params.iteritems():
# verify this parameter exists
if not Parameter.has(key):
raise InstrumentParameterException('Received invalid parameter in SET: %s' % key)
# if constraint exists, verify we have not violated it
constraint_key = parameters.get(key)
if constraint_key in constraints:
var_type, minimum, maximum = constraints[constraint_key]
constraint_string = 'Parameter: %s Value: %s Type: %s Minimum: %s Maximum: %s' % \
(key, val, var_type, minimum, maximum)
log.debug('SET CONSTRAINT: %s', constraint_string)
# check bool values are actual booleans
if var_type == bool:
if val not in [True, False]:
raise InstrumentParameterException('Non-boolean value!: %s' % constraint_string)
# else, check if we can cast to the correct type
else:
try:
var_type(val)
except ValueError:
raise InstrumentParameterException('Type mismatch: %s' % constraint_string)
# now, verify we are within min/max
if val < minimum or val > maximum:
raise InstrumentParameterException('Out of range: %s' % constraint_string)
def set_overcurrent_limit(self, port_id, milliamps, microseconds, src):
def _verify_response(rsp):
try:
message = rsp[port_id]
if not message.startswith('OK'):
raise PlatformException(
msg="Error in setting overcurrent for port %s: %s" %
(port_id, message))
except KeyError:
raise PlatformException(msg="Error in response: %s" % rsp)
self._verify_rsn_oms('set_overcurrent_limit')
oms_port_cntl_id = self._verify_and_return_oms_port(
port_id, 'set_overcurrent_limit')
try:
response = self._rsn_oms.port.set_over_current(
self._platform_id, oms_port_cntl_id, int(milliamps),
int(microseconds), src)
except Exception as e:
raise PlatformConnectionException(
msg="Cannot set_overcurrent_limit: %s" % str(e))
response = self._convert_port_id_from_oms_to_ci(
port_id, oms_port_cntl_id, response)
log.debug("set_overcurrent_limit = %s", response)
dic_plat = self._verify_platform_id_in_response(response)
_verify_response(dic_plat)
return dic_plat # note: return the dic for the platform
def set_init_params(self, config):
"""
Set initial parameters. Parameters are forwarded to the appropriate parameter dictionary based on name.
@param config: Init param config to be handled
"""
temp_dict = {}
self._startup_config = config
config = config.get(DriverConfigKey.PARAMETERS, {})
for key in config:
target, _ = key.split('_', 1)
if target not in self._slave_protocols:
# master driver parameter
log.debug("Setting init value for %s to %s", key, config[key])
self._param_dict.set_init_value(key, config[key])
else:
temp_dict.setdefault(target, {})[key] = config[key]
for name in temp_dict:
if name in self._slave_protocols:
self._slave_protocols[name].set_init_params(
{DriverConfigKey.PARAMETERS: temp_dict[name]})
else:
# how did we get here? This should never happen, but raise an exception if it does.
raise InstrumentParameterException(
'Invalid key(s) in INIT PARAMS action: %r' %
temp_dict[name])
def disconnect_instrument(self, port_id, instrument_id):
if self._rsn_oms is None:
raise PlatformConnectionException(
"Cannot disconnect_instrument: _rsn_oms object required (created via connect() call)"
)
try:
response = self._rsn_oms.instr.disconnect_instrument(
self._platform_id, port_id, instrument_id)
except Exception as e:
raise PlatformConnectionException(
msg="Cannot disconnect_instrument: %s" % str(e))
log.debug("%r: disconnect_instrument response: %s", self._platform_id,
response)
dic_plat = self._verify_platform_id_in_response(response)
port_dic = self._verify_port_id_in_response(port_id, dic_plat)
instr_res = self._verify_instrument_id_in_response(
port_id, instrument_id, port_dic)
# update local image if instrument was actually disconnected in this call:
if instr_res == NormalResponse.INSTRUMENT_DISCONNECTED:
# TODO(OOIION-1495) review. This line was commented out, but the
# PortNode.add_instrument/remove_instrument functionality is
# being used to keep track of the connected instruments in a port.
self._pnode.ports[port_id].remove_instrument(instrument_id)
log.debug(
"%r: port_id=%s disconnect_instrument: local image updated: %s",
self._platform_id, port_id, instrument_id)
return dic_plat # note: return the dic for the platform
def _got_data(port_agent_packet):
if isinstance(port_agent_packet, Exception):
return self._got_exception(port_agent_packet)
if isinstance(port_agent_packet, PortAgentPacket):
packet_type = port_agent_packet.get_header_type()
data = port_agent_packet.get_data()
if packet_type == PortAgentPacket.PORT_AGENT_CONFIG:
try:
paconfig = json.loads(data)
self._port_agent_config[name] = paconfig
self._driver_event(DriverAsyncEvent.DRIVER_CONFIG, paconfig)
except ValueError as e:
log.exception('Unable to parse port agent config: %r %r', data, e)
elif packet_type == PortAgentPacket.PORT_AGENT_STATUS:
log.debug('Received PORT AGENT STATUS: %r', data)
current_state = self._connection_fsm.get_current_state()
if data == 'DISCONNECTED':
self._slave_connection_status[name] = 0
self._async_raise_event(DriverEvent.PA_CONNECTION_LOST)
elif data == 'CONNECTED':
self._slave_connection_status[name] = 1
if all(self._slave_connection_status.values()):
if current_state == DriverConnectionState.INST_DISCONNECTED:
self._async_raise_event(DriverEvent.CONNECT)
else:
protocol = self._slave_protocols.get(name)
if protocol:
protocol.got_data(port_agent_packet)
def start_profiler_mission(self, mission_name, src):
def _verify_response(rsp):
try:
message = rsp[mission_name]
if not message.startswith('OK'):
raise PlatformException(msg="Error in starting mission %s: %s" % (mission_name, message))
except KeyError:
raise PlatformException(msg="Error in starting mission response: %s" % rsp)
self._verify_rsn_oms('start_profiler_mission')
try:
response = self._rsn_oms.profiler.start_mission(self._platform_id,
mission_name, src)
except Exception as e:
raise PlatformConnectionException(msg="Cannot start_profiler_mission: %s" % str(e))
log.debug("%r: start_profiler_mission response: %s",
self._platform_id, response)
dic_plat = self._verify_platform_id_in_response(response)
_verify_response(dic_plat)
return dic_plat # note: return the dic for the platform
def set_overcurrent_limit(self, port_id, milliamps, microseconds, src):
def _verify_response(rsp):
try:
message = rsp[port_id]
if not message.startswith('OK'):
raise PlatformException(msg="Error in setting overcurrent for port %s: %s" % (port_id, message))
except KeyError:
raise PlatformException(msg="Error in response: %s" % rsp)
self._verify_rsn_oms('set_overcurrent_limit')
oms_port_cntl_id = self._verify_and_return_oms_port(port_id, 'set_overcurrent_limit')
try:
response = self._rsn_oms.port.set_over_current(self._platform_id, oms_port_cntl_id, int(milliamps),
int(microseconds), src)
except Exception as e:
raise PlatformConnectionException(msg="Cannot set_overcurrent_limit: %s" % str(e))
response = self._convert_port_id_from_oms_to_ci(port_id, oms_port_cntl_id, response)
log.debug("set_overcurrent_limit = %s", response)
dic_plat = self._verify_platform_id_in_response(response)
_verify_response(dic_plat)
return dic_plat # note: return the dic for the platform
def _got_data(port_agent_packet):
if isinstance(port_agent_packet, Exception):
return self._got_exception(port_agent_packet)
if isinstance(port_agent_packet, PortAgentPacket):
packet_type = port_agent_packet.get_header_type()
data = port_agent_packet.get_data()
if packet_type == PortAgentPacket.PORT_AGENT_CONFIG:
try:
paconfig = json.loads(data)
self._port_agent_config[name] = paconfig
self._driver_event(DriverAsyncEvent.DRIVER_CONFIG,
paconfig)
except ValueError as e:
log.exception(
'Unable to parse port agent config: %r %r', data,
e)
elif packet_type == PortAgentPacket.PORT_AGENT_STATUS:
log.debug('Received PORT AGENT STATUS: %r', data)
current_state = self._connection_fsm.get_current_state()
if data == 'DISCONNECTED':
self._slave_connection_status[name] = 0
self._async_raise_event(DriverEvent.PA_CONNECTION_LOST)
elif data == 'CONNECTED':
self._slave_connection_status[name] = 1
if all(self._slave_connection_status.values()):
if current_state == DriverConnectionState.INST_DISCONNECTED:
self._async_raise_event(DriverEvent.CONNECT)
else:
protocol = self._slave_protocols.get(name)
if protocol:
protocol.got_data(port_agent_packet)
def disconnect_instrument(self, port_id, instrument_id):
if self._rsn_oms is None:
raise PlatformConnectionException("Cannot disconnect_instrument: _rsn_oms object required (created via connect() call)")
try:
response = self._rsn_oms.instr.disconnect_instrument(self._platform_id,
port_id,
instrument_id)
except Exception as e:
raise PlatformConnectionException(msg="Cannot disconnect_instrument: %s" % str(e))
log.debug("%r: disconnect_instrument response: %s",
self._platform_id, response)
dic_plat = self._verify_platform_id_in_response(response)
port_dic = self._verify_port_id_in_response(port_id, dic_plat)
instr_res = self._verify_instrument_id_in_response(port_id, instrument_id, port_dic)
# update local image if instrument was actually disconnected in this call:
if instr_res == NormalResponse.INSTRUMENT_DISCONNECTED:
# TODO(OOIION-1495) review. This line was commented out, but the
# PortNode.add_instrument/remove_instrument functionality is
# being used to keep track of the connected instruments in a port.
self._pnode.ports[port_id].remove_instrument(instrument_id)
log.debug("%r: port_id=%s disconnect_instrument: local image updated: %s",
self._platform_id, port_id, instrument_id)
return dic_plat # note: return the dic for the platform
def turn_off_port(self, port_id):
try:
oms_port_id = self.nodeCfgFile.GetOMSPortId(port_id);
except Exception as e:
raise PlatformConnectionException(msg="Cannot turn_off_platform_port: %s" % str(e))
log.debug("%r: turning off port: port_id=%s oms port_id = %s",
self._platform_id, port_id,oms_port_id)
if self._rsn_oms is None:
raise PlatformConnectionException("Cannot turn_off_platform_port: _rsn_oms object required (created via connect() call)")
try:
response = self._rsn_oms.port.turn_off_platform_port(self._platform_id,
oms_port_id,'CI - User')
except Exception as e:
raise PlatformConnectionException(msg="Cannot turn_off_platform_port: %s" % str(e))
log.debug("%r: turn_off_platform_port response: %s",
self._platform_id, response)
dic_plat = self._verify_platform_id_in_response(response)
self._verify_port_id_in_response(oms_port_id, dic_plat)
return dic_plat # note: return the dic for the platform
def callback_for_alert(self, event, *args, **kwargs):
log.debug("caught an OMSDeviceStatusEvent: %s", event)
# self._notify_driver_event(OMSEventDriverEvent(event['description']))
log.info('Platform agent %r published OMSDeviceStatusEvent : %s, time: %s',
self._platform_id, event, time.time())
def _connect(self, recursion=None):
"""
Creates an CIOMSClient instance, does a ping to verify connection,
and starts event dispatch.
"""
# create CIOMSClient:
oms_uri = self._driver_config['oms_uri']
log.debug("%r: creating CIOMSClient instance with oms_uri=%r",
self._platform_id, oms_uri)
self._rsn_oms = CIOMSClientFactory.create_instance(oms_uri)
log.debug("%r: CIOMSClient instance created: %s",
self._platform_id, self._rsn_oms)
# ping to verify connection:
self._ping()
# start event dispatch:
self._start_event_dispatch()
# TODO - commented out
# self.event_subscriber = EventSubscriber(event_type='OMSDeviceStatusEvent',
# callback=self.callback_for_alert)
#
# self.event_subscriber.start()
# TODO(OOIION-1495) review the following. Commented out for the moment.
# Note, per the CI-OMS spec ports need to be turned OFF to then proceed
# with connecting instruments. So we need to determine whether we
# want to turn all ports ON in this "connect driver" operation,
# and then add the logic to turn a port OFF before connecting
# instruments, and then ON again; or, just do the OFF/ON logic in the
# connect_instrument and disconnect_instrument operations,
# but not here.
"""
def _set_params(self, *args, **kwargs):
"""
Issue commands to the instrument to set various parameters
@param args: arglist, should contain a dictionary of parameters/values to be set
"""
try:
params = args[0]
except IndexError:
raise InstrumentParameterException('Set command requires a parameter dict.')
self._verify_set_values(params)
self._verify_not_readonly(*args, **kwargs)
# if setting the output rate, get the current rate from the instrument first...
if Parameter.OUTPUT_RATE in params:
self._update_params()
old_config = self._param_dict.get_config()
# all constraints met or no constraints exist, set the values
for key, value in params.iteritems():
self._param_dict.set_value(key, value)
new_config = self._param_dict.get_config()
if not old_config == new_config:
log.debug('Config change: %r %r', old_config, new_config)
if old_config[Parameter.OUTPUT_RATE] is not None:
if int(old_config[Parameter.OUTPUT_RATE]) != int(new_config[Parameter.OUTPUT_RATE]):
self._do_cmd_no_resp(InstrumentCommand.NANO_SET_RATE, int(new_config[Parameter.OUTPUT_RATE]))
self._driver_event(DriverAsyncEvent.CONFIG_CHANGE)
def _construct_fsm(self, states=PlatformDriverState,
events=PlatformDriverEvent,
enter_event=PlatformDriverEvent.ENTER,
exit_event=PlatformDriverEvent.EXIT):
"""
Constructs the FSM for the driver. The preparations here are mostly
related with the UNCONFIGURED, DISCONNECTED, and CONNECTED state
transitions, with some common handlers for the CONNECTED state.
Subclasses can override to indicate specific parameters and add new
handlers (typically for the CONNECTED state).
"""
log.debug("constructing base platform driver FSM")
self._fsm = ThreadSafeFSM(states, events, enter_event, exit_event)
for state in PlatformDriverState.list():
self._fsm.add_handler(state, enter_event, self._common_state_enter)
self._fsm.add_handler(state, exit_event, self._common_state_exit)
# UNCONFIGURED state event handlers:
self._fsm.add_handler(PlatformDriverState.UNCONFIGURED, PlatformDriverEvent.CONFIGURE, self._handler_unconfigured_configure)
# DISCONNECTED state event handlers:
self._fsm.add_handler(PlatformDriverState.DISCONNECTED, PlatformDriverEvent.CONNECT, self._handler_disconnected_connect)
self._fsm.add_handler(PlatformDriverState.DISCONNECTED, PlatformDriverEvent.DISCONNECT, self._handler_disconnected_disconnect)
# CONNECTED state event handlers:
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.DISCONNECT, self._handler_connected_disconnect)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.CONNECTION_LOST, self._handler_connected_connection_lost)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.PING, self._handler_connected_ping)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.GET, self._handler_connected_get)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.SET, self._handler_connected_set)
self._fsm.add_handler(PlatformDriverState.CONNECTED, PlatformDriverEvent.EXECUTE, self._handler_connected_execute)
def _connect(self, recursion=None):
"""
Creates an CIOMSClient instance, does a ping to verify connection,
and starts event dispatch.
"""
# create CIOMSClient:
oms_uri = self._driver_config['oms_uri']
log.debug("%r: creating CIOMSClient instance with oms_uri=%r",
self._platform_id, oms_uri)
self._rsn_oms = CIOMSClientFactory.create_instance(oms_uri)
log.debug("%r: CIOMSClient instance created: %s", self._platform_id,
self._rsn_oms)
# ping to verify connection:
self._ping()
# start event dispatch:
self._start_event_dispatch()
# TODO - commented out
# self.event_subscriber = EventSubscriber(event_type='OMSDeviceStatusEvent',
# callback=self.callback_for_alert)
#
# self.event_subscriber.start()
# TODO(OOIION-1495) review the following. Commented out for the moment.
# Note, per the CI-OMS spec ports need to be turned OFF to then proceed
# with connecting instruments. So we need to determine whether we
# want to turn all ports ON in this "connect driver" operation,
# and then add the logic to turn a port OFF before connecting
# instruments, and then ON again; or, just do the OFF/ON logic in the
# connect_instrument and disconnect_instrument operations,
# but not here.
"""
def _disconnect(self, recursion=None):
CIOMSClientFactory.destroy_instance(self._rsn_oms)
self._rsn_oms = None
log.debug("%r: CIOMSClient instance destroyed", self._platform_id)
self._delete_scheduler()
self._scheduler = None
def _remove_heater_timeout(self):
"""
Clean up the heater timer
"""
try:
self._remove_scheduler(ScheduledJob.HEATER_TIMEOUT)
except KeyError:
log.debug('Unable to remove HEATER_TIMEOUT scheduled job, job does not exist.')
def _remove_leveling_timeout(self):
"""
Clean up the leveling timer
"""
try:
self._remove_scheduler(ScheduledJob.LEVELING_TIMEOUT)
except KeyError:
log.debug('Unable to remove LEVELING_TIMEOUT scheduled job, job does not exist.')
def _remove_leveling_timeout(self):
"""
Clean up the leveling timer
"""
try:
self._remove_scheduler(ScheduledJob.LEVELING_TIMEOUT)
except KeyError:
log.debug('Unable to remove LEVELING_TIMEOUT scheduled job, job does not exist.')
def callback_for_alert(self, event, *args, **kwargs):
log.debug("caught an OMSDeviceStatusEvent: %s", event)
# self._notify_driver_event(OMSEventDriverEvent(event['description']))
log.info(
'Platform agent %r published OMSDeviceStatusEvent : %s, time: %s',
self._platform_id, event, time.time())
def _common_state_enter(self, *args, **kwargs):
"""
Common work upon every state entry.
"""
state = self.get_driver_state()
log.debug('%r: driver entering state: %s', self._platform_id, state)
self._driver_event(DriverAsyncEvent.STATE_CHANGE)
def _common_state_enter(self, *args, **kwargs):
"""
Common work upon every state entry.
"""
state = self.get_driver_state()
log.debug('%r: driver entering state: %s', self._platform_id, state)
self._driver_event(DriverAsyncEvent.STATE_CHANGE)
def _common_state_enter(self, *args, **kwargs):
"""
Common work upon every state entry.
"""
state = self.get_driver_state()
log.debug('%r: driver entering state: %s', self._platform_id, state)
self._notify_driver_event(StateChangeDriverEvent(state))
def _common_state_enter(self, *args, **kwargs):
"""
Common work upon every state entry.
"""
state = self.get_driver_state()
log.debug('%r: driver entering state: %s', self._platform_id, state)
self._notify_driver_event(StateChangeDriverEvent(state))
def _build_override_handler(self, slave, event):
log.debug('Building event handler for protocol: %s event: %s', slave,
event)
def inner():
return None, self._slave_protocols[slave]._protocol_fsm.on_event(
event)
return inner
def _get_ports(self):
ports = {}
for port_id, port in self._pnode.ports.iteritems():
ports[port_id] = {'state': port.state}
log.debug("%r: _get_ports: %s", self._platform_id, ports)
return ports
# TODO(OOIION-1495) review the following
"""
def _build_parsed_values(self):
"""
@throws SampleException If there is a problem with sample creation
"""
if self._parameters is None or self._streams is None:
self._load_streams()
if self.raw_data not in self._streams:
raise SampleException('Unknown stream %r' % self.raw_data)
self._data_particle_type = self.raw_data
parameters = self._streams.get(self.raw_data, [])
values = []
for param in parameters:
if param in self._ignore:
continue
p = self._parameters.get(param)
if p.parameter_type == 'function':
continue
log.trace('Generating random data for param: %s name: %s', param,
p.name)
val = None
if p.value_encoding in ['str', 'string']:
val = self.random_string(20)
elif p.value_encoding == 'int8':
val = random.choice(self.INT8_RANDOM)
elif p.value_encoding == 'int16':
val = random.choice(self.INT16_RANDOM)
elif p.value_encoding == 'int32':
val = random.choice(self.INT32_RANDOM)
elif p.value_encoding == 'int64':
val = random.choice(self.INT64_RANDOM)
elif p.value_encoding == 'uint8':
val = random.choice(self.UINT8_RANDOM)
elif p.value_encoding == 'uint16':
val = random.choice(self.UINT16_RANDOM)
elif p.value_encoding == 'uint32':
val = random.choice(self.UINT32_RANDOM)
elif p.value_encoding == 'uint64':
val = random.choice(self.UINT64_RANDOM)
elif p.value_encoding in ['float32', 'float64']:
val = random.choice(self.FLOAT_RANDOM)
else:
log.debug('Unhandled parameter value encoding: %s', p)
if val is not None:
if 'array' in p.parameter_type and p.value_encoding not in [
'str', 'string'
]:
val = [val] * 2
values.append({'value_id': p.name, 'value': val})
return values
def load_paramdicts(conn):
log.debug('Loading Streams')
c = conn.cursor()
c.execute(STREAM_SELECT)
stream_params = map(StreamParam._make, c.fetchall())
paramdict = {}
for each in stream_params:
paramdict.setdefault(each.name, []).append(each.parameter_id)
return paramdict
def _get_ports(self):
ports = {}
for port_id, port in self._pnode.ports.iteritems():
ports[port_id] = {'state': port.state}
log.debug("%r: _get_ports: %s", self._platform_id, ports)
return ports
# TODO(OOIION-1495) review the following
"""
def load_paramdicts(conn):
log.debug("Loading Streams")
c = conn.cursor()
c.execute(STREAM_SELECT)
stream_params = map(StreamParam._make, c.fetchall())
paramdict = {}
for each in stream_params:
paramdict.setdefault(each.name, []).append(each.parameter_id)
return paramdict
def _delete_scheduler(self):
"""
Remove the autosample schedule.
"""
try:
self._scheduler.unschedule_job(self._job)
except KeyError:
log.debug('Failed to remove scheduled job for ACQUIRE_SAMPLE')
self._scheduler.shutdown()
def _remove_heater_timeout(self):
"""
Clean up the heater timer
"""
try:
self._remove_scheduler(ScheduledJob.HEATER_TIMEOUT)
except KeyError:
log.debug(
'Unable to remove HEATER_TIMEOUT scheduled job, job does not exist.'
)
def _delete_scheduler(self):
"""
Remove the autosample schedule.
"""
try:
self._scheduler.unschedule_job(self._job)
except KeyError:
log.debug('Failed to remove scheduled job for ACQUIRE_SAMPLE')
self._scheduler.shutdown()
def _unregister_event_listener(self, url):
"""
Unregisters given url for all event types.
"""
try:
result = self._rsn_oms.event.unregister_event_listener(url)
log.debug("%r: unregister_event_listener(%r) => %s", self._platform_id, url, result)
except (Fault, ProtocolError, SocketError) as e:
raise PlatformConnectionException(msg="%r: Cannot unregister_event_listener: %s" % (self._platform_id, e))
def _build_parsed_values(self):
result = []
for key, value in self.raw_data.items():
if key == Parameter.ERROR_REASON:
continue
key = 'massp_%s' % key
result.append({DataParticleKey.VALUE_ID: key,
DataParticleKey.VALUE: value})
log.debug('STATUS PARTICLE: %r', result)
return result
def get_node_eng_data(self):
log.debug("%r: get_eng_data...", self._platform_id)
ntp_time = ntplib.system_to_ntp_time(time.time())
for streamKey,stream in sorted(self.nodeCfg.node_streams.iteritems()):
log.debug("%r Stream(%s)", self._platform_id,streamKey)
attrs=list();
for streamAttrKey,streamAttr in sorted(stream.iteritems()):
# log.debug("%r %r = %r", self._platform_id, streamAttrKey,streamAttr)
if 'lastRcvSampleTime' not in streamAttr : # first time this is called set this to a reasonable value
streamAttr['lastRcvSampleTime'] = ntp_time - streamAttr['monitor_cycle_seconds']*2
lastRcvSampleTime = streamAttr['lastRcvSampleTime']
if (lastRcvSampleTime+streamAttr['monitor_cycle_seconds'])<ntp_time : # if we think that the OMS will have data from us add it to the list
if (ntp_time-lastRcvSampleTime)>(streamAttr['monitor_cycle_seconds']*10) : #make sure we don't reach too far back by accident or will
lastRcvSampleTime=ntp_time-(streamAttr['monitor_cycle_seconds']*10) #clog up the OMS DB search
attrs.append((streamAttrKey,lastRcvSampleTime+0.1)) # add a little bit of time to the last received so we don't get one we already have again
if len(attrs)>0 :
returnDictTemp = self.get_attribute_values_from_oms(attrs) #go get the data from the OMS
returnDict = self.round_timestamps(returnDictTemp)
ts_list = self.get_all_returned_timestamps(returnDict) #get the list of all unique returned timestamps
for ts in ts_list: #for each timestamp create a particle and emit it
oneTimestampAttrs = self.get_single_timestamp_list(stream,ts,returnDict) #go get the list at this timestamp
ionOneTimestampAttrs = self.convertAttrsToIon(stream,oneTimestampAttrs) #scale the attrs and convert the names to ion
pad_particle = Platform_Particle(ionOneTimestampAttrs,port_timestamp=ts) #need to review what port timetamp meaning is..
pad_particle.set_internal_timestamp(timestamp=ts)
pad_particle._data_particle_type = streamKey # stream name
json_message = pad_particle.generate() # this cals parse values above to go from raw to values dict
event = {
'type': DriverAsyncEvent.SAMPLE,
'value': json_message,
'time': time.time()
}
self._send_event(event)
return 1
def get_eng_data(self):
log.debug("%r: get_eng_data...", self._platform_id)
ntp_time = ntplib.system_to_ntp_time(time.time())
for streamKey, stream in sorted(self.nodeCfg.node_streams.iteritems()):
log.debug("%r Stream(%s)", self._platform_id, streamKey)
if not (streamKey in self._lastRcvSampleTime):
self._lastRcvSampleTime[streamKey] = ntp_time - self.oms_sample_rate*10
if self._lastRcvSampleTime[streamKey]<ntp_time-self.oms_sample_rate*10 : #prevent the max lookback time getting to big
self._lastRcvSampleTime[streamKey]=ntp_time-self.oms_sample_rate*10 #if we stop getting data for some reason
attrs = list()
for streamAttrKey, streamAttr in sorted(stream.iteritems()):
# log.debug("%r %r = %r", self._platform_id, streamAttrKey,streamAttr)
attrs.append((streamAttrKey,self._lastRcvSampleTime[streamKey]+0.1)) # add a little bit of time to the last received so we don't get one we already have again
if len(attrs)>0 :
# log.error("%r Request From OMS Stream(%s) Attrs(%s)", self._platform_id, streamKey,attrs)
returnDict = self.get_attribute_values_from_oms(attrs) #go get the data from the OMS
ts_list = self.get_all_returned_timestamps(returnDict) #get the list of all unique returned timestamps
# log.error("%r Request From OMS Stream(%s) Return (%s)", self._platform_id, streamKey,returnDict)
for ts in sorted(ts_list): #for each timestamp create a particle and emit it
oneTimestampAttrs = self.get_single_timestamp_list(stream,ts,returnDict) #go get the list at this timestamp
ionOneTimestampAttrs = self.convertAttrsToIon(stream,oneTimestampAttrs) #scale the attrs and convert the names to ion
pad_particle = PlatformParticle(ionOneTimestampAttrs,
preferred_timestamp=DataParticleKey.INTERNAL_TIMESTAMP) #need to review what port timetamp meaning is..
pad_particle.set_internal_timestamp(timestamp=ts)
pad_particle._data_particle_type = streamKey # stream name
json_message = pad_particle.generate() # this cals parse values above to go from raw to values dict
event = {
'type': DriverAsyncEvent.SAMPLE,
'value': json_message,
'time': time.time()
}
self._send_event(event)
self._lastRcvSampleTime[streamKey]=ts
return 1
def _unregister_event_listener(self, url):
"""
Unregisters given url for all event types.
"""
try:
result = self._rsn_oms.event.unregister_event_listener(url)
log.debug("%r: unregister_event_listener(%r) => %s", self._platform_id, url, result)
except (Fault, ProtocolError, SocketError) as e:
raise PlatformConnectionException(
msg="%r: Cannot unregister_event_listener: %s" % (self._platform_id, e))
def set_attribute_values(self, attrs):
"""
"""
if self._rsn_oms is None:
raise PlatformConnectionException(
"Cannot set_platform_attribute_values: _rsn_oms object required (created via connect() call)"
)
error_vals = self._validate_set_attribute_values(attrs)
if len(error_vals) > 0:
# remove offending attributes for the request below
attrs_dict = dict(attrs)
for bad_attr_name in error_vals:
del attrs_dict[bad_attr_name]
# no good attributes at all?
if len(attrs_dict) == 0:
# just immediately return with the errors:
return error_vals
# else: update attrs with the good attributes:
attrs = attrs_dict.items()
# ok, now make the request to RSN OMS:
try:
retval = self._rsn_oms.attr.set_platform_attribute_values(
self._platform_id, attrs)
except Exception as e:
raise PlatformConnectionException(
msg="Cannot set_platform_attribute_values: %s" % str(e))
log.debug("set_platform_attribute_values = %s", retval)
if not self._platform_id in retval:
raise PlatformException("Unexpected: response does not include "
"requested platform '%s'" %
self._platform_id)
attr_values = retval[self._platform_id]
# Note that the reported timestamps are in NTP.
# (Timestamps indicate the time when the value was set for each attribute.)
# ret_attr_values: dictionary to return, initialized with the error ones
# determined above, if any:
ret_attr_values = error_vals
# add the info returned from RSN OMS:
for attr_name, attr_val_ts in attr_values.iteritems():
ret_attr_values[attr_name] = attr_val_ts
log.debug("set_attribute_values: returning %s", ret_attr_values)
return ret_attr_values
def get_eng_data(self):
ntp_time = ntplib.system_to_ntp_time(time.time())
max_time = ntp_time - self.oms_sample_rate * 10
for key, stream in self.nodeCfg.node_streams.iteritems():
log.debug("%r Stream(%s)", self._platform_id, key)
# prevent the max lookback time getting to big if we stop getting data for some reason
self._last_sample_time[key] = max(self._last_sample_time.get(key, max_time), max_time)
for instance in stream:
self.get_instance_particles(key, instance, stream[instance])
