def _named_tuple_to_dv(values,
parameter_label,
data_type=DATA_INT,
metadata=None):
"""Convert a named tuple to a list of DataPoint objects.
Args:
values: Named tuple
parameter_label: parameter_label
data_type: Data type
Returns:
result: List of DataPoint
"""
# Get data
data_dict = values._asdict()
result = []
# Cycle through results
for key, value in data_dict.items():
_dv = DataPoint('{}_{}'.format(parameter_label, key),
value,
data_type=data_type)
_dv.add(metadata)
result.append(_dv)
# Return
return result
def stats_disk_swap(self):
"""Update agent with disk swap data.
Args:
ddv: TargetDataPoints object
Returns:
None
"""
# Initialize key variables
result = []
# Get swap information
system_list = psutil.swap_memory()._asdict()
for key, value in system_list.items():
# Different suffixes have different data types
if key in ['sin', 'sout']:
data_type = DATA_COUNT64
else:
data_type = DATA_INT
# No need to specify a suffix as there is only one swap
new_key = '{}_{}'.format('swap_memory', key)
_dv = DataPoint(new_key, value, data_type=data_type)
_dv.add(self.metadata)
result.append(_dv)
# Add the result to data
return result
def stats_network(self):
"""Update agent with network data.
Args:
ddv: TargetDataPoints object
Returns:
None
"""
# Initialize key variables
result = []
# Get network utilization
nicddv = psutil.net_io_counters(pernic=True)
for nic, nic_named_tuple in nicddv.items():
nic_dict = nic_named_tuple._asdict()
for key, value in nic_dict.items():
_dv = DataPoint('{}_{}'.format('network_io', key),
value,
data_type=DATA_COUNT64)
_dv.add(self.metadata)
_dv.add(
DataPointMetadata('{}_interface'.format('network_io'),
nic))
result.append(_dv)
# Add the result to data
return result
def test_datapoints_to_dicts(self):
"""Testing method or function named datapoints_to_dicts."""
# Initialize key variables
datapoints = []
# Create DataPoints
for value in range(0, 2):
# Sleep to force a change in the timestamp
sleep(0.1)
metadata = []
for meta in range(0, 2):
metadata.append(DataPointMetadata(int(meta), str(meta * 2)))
# Create the datapoint
datapoint = DataPoint('label_{}'.format(value),
value,
data_type=DATA_INT)
# Add metadata
for meta in metadata:
datapoint.add(meta)
# Add metadata that should be ignored.
for key in DATAPOINT_KEYS:
metadata.append(DataPointMetadata(key, '_{}_'.format(key)))
# Add the datapoint to the list
datapoints.append(datapoint)
# Start testing
result = converter.datapoints_to_dicts(datapoints)
expected = {
'key_value_pairs': {
0: ('0', '0'),
1: ('1', '2'),
2: ('pattoo_key', 'label_0'),
3: ('pattoo_data_type', 99),
4: ('pattoo_value', 0),
5: ('pattoo_timestamp', 1575794447250),
6: ('pattoo_checksum',
'284d21bff49bbde9eb7fc3ad98a88e5cbf72830f69743b47bd2c349'
'407807f68'),
7: ('pattoo_key', 'label_1'),
8: ('pattoo_value', 1),
9: ('pattoo_timestamp', 1575915772433),
10: ('pattoo_checksum',
'a5919eb5fc5bac62e7c80bc04155931f75e22166ed84b1d07f704f4'
'0b083d098')
},
'datapoint_pairs': [[0, 1, 2, 3, 4, 5, 6], [0, 1, 7, 3, 8, 9, 10]]
}
self.assertEqual(result['datapoint_pairs'],
expected['datapoint_pairs'])
for key, value in result['key_value_pairs'].items():
if key not in [5, 9]:
self.assertEqual(expected['key_value_pairs'][key], value)
def stats_disk_partitions(self):
"""Update agent with disk partition data.
Args:
ddv: TargetDataPoints object
Returns:
None
"""
# Initialize key variables
result = []
# Get filesystem partition utilization
items = psutil.disk_partitions()
# "items" is a list of named tuples describing partitions
for item in items:
# "source" is the partition mount point
mountpoint = item.mountpoint
if "docker" not in str(mountpoint):
# Add more metadata
meta = []
meta.append(
DataPointMetadata('{}_device'.format('disk_partition'),
item.device))
meta.append(
DataPointMetadata('{}_mountpoint'.format('disk_partition'),
item.mountpoint))
meta.append(
DataPointMetadata('{}_fstype'.format('disk_partition'),
item.fstype))
meta.append(
DataPointMetadata('{}_opts'.format('disk_partition'),
item.opts))
# Get the partition data. Skip if the data is unreadable
# due to permissions (eg. External storage mounted by users)
try:
partition = psutil.disk_usage(mountpoint)._asdict()
except:
continue
for key, value in partition.items():
_dv = DataPoint('{}_disk_usage_{}'.format(
'disk_partition', key),
value,
data_type=DATA_INT)
_dv.add(meta)
_dv.add(self.metadata)
result.append(_dv)
# Add the result to data
return result
def _get_target_datapoints(self, item):
"""Poll each spoke in parallel.
Args:
item: TargetPollingPoints object
Returns:
ddv: TargetDataPoints for the SNMPVariable target
"""
# Intialize data gathering
ip_target = item.target
ddv = TargetDataPoints(ip_target)
# BAC0 only works with IP addresses
ip_address = network.get_ipaddress(ip_target)
if bool(ip_address) is False:
return ddv
# Get list of type DataPoint
datapoints = []
for polltarget in item.data:
# Get polling results
value = poll_target_address(ip_address, polltarget.address,
'presentValue', self._bacnet)
name = poll_target_address(ip_address, polltarget.address,
'objectName', self._bacnet)
# Skip if invalid data is received
if value is None:
continue
# Do multiplication
if data.is_numeric(value) is True:
value = float(value) * polltarget.multiplier
data_type = DATA_FLOAT
else:
data_type = DATA_STRING
# Update datapoints
datapoint = DataPoint('analog_value_point_{}'.format(
polltarget.address),
value,
data_type=data_type)
datapoint.add(DataPointMetadata('target', ip_target))
if name is not None:
datapoint.add(DataPointMetadata('object_name', name))
datapoints.append(datapoint)
# Return
ddv.add(datapoints)
return ddv
def _walker(snmpvariable, polltargets):
"""Poll each spoke in parallel.
Args:
snmpvariable: SNMPVariable to poll
polltargets: List of PollingPoint objects to poll
Returns:
ddv: TargetDataPoints for the SNMPVariable target
"""
# Intialize data gathering
ddv = TargetDataPoints(snmpvariable.ip_target)
# Get list of type DataPoint
datapoints = []
for polltarget in polltargets:
# Get OID polling results
query = snmp.SNMP(snmpvariable)
query_datapoints = query.walk(polltarget.address)
# Apply multiplier to the results
for _dp in query_datapoints:
# Do multiplication
if data.is_data_type_numeric(_dp.data_type) is True:
value = float(_dp.value) * polltarget.multiplier
else:
value = _dp.value
# Update datapoints
datapoint = DataPoint(polltarget.address,
value,
data_type=_dp.data_type)
datapoint.add(DataPointMetadata('oid', _dp.key))
datapoints.append(datapoint)
# Return
ddv.add(datapoints)
return ddv
def stats_disk_io(self):
"""Update agent with disk io data.
Args:
ddv: TargetDataPoints object
Returns:
None
"""
# Initialize key variables
regex = re.compile(r'^ram\d+$')
result = []
# Get disk I/O usage. Skip if the data is unreadable
# due to permissions (eg. External storage mounted by users)
ioddv = psutil.disk_io_counters(perdisk=True)
# "source" is disk name
for disk, disk_named_tuple in ioddv.items():
# No RAM pseudo disks. RAM disks OK.
if bool(regex.match(disk)) is True:
continue
# No loopbacks
if disk.startswith('loop') is True:
continue
# Populate data
disk_dict = disk_named_tuple._asdict()
for key, value in disk_dict.items():
new_key = '{}_{}'.format('disk_io', key)
_dv = DataPoint(new_key, value, data_type=DATA_COUNT64)
_dv.add(self.metadata)
_dv.add(DataPointMetadata('disk_partition', disk))
result.append(_dv)
# Add the result to data
return result
def test_agent():
# Define the polling interval in seconds (integer).
polling_interval = 300
# Give the agent a name
agent_name = 'sample_agent_script'
# Let's assume the script has already received this data from SITE_A
site_a_data = [['ABC', 123.456], ['DEF', 456.789]]
# Let's assume the script has already received this data from WORK_1
work_1_data = [['GHI', 654.321], ['JKL', 987.654]]
# Setup the agent's AgentPolledData object.
agent = AgentPolledData(agent_name, polling_interval)
# Let's add some metadata that you don't want to affect charting in the
# event of a change. Department names change all the time.
metadata_static = DataPointMetadata('Department Name',
'The Palisadoes Foundation',
update_checksum=False)
# Let's add some metadata that will change and trigger a new chart.
metadata_dynamic = DataPointMetadata('Financial Year', '2020')
# Create target objects for SITE_A
target = TargetDataPoints('SITE_A')
for quote in site_a_data:
key, value = quote
datapoint = DataPoint(key, value, data_type=DATA_FLOAT)
datapoint.add(metadata_static)
datapoint.add(metadata_dynamic)
target.add(datapoint)
agent.add(target)
# Create target objects for WORK_1
target = TargetDataPoints('WORK_1')
for quote in work_1_data:
key, value = quote
datapoint = DataPoint(key, value, data_type=DATA_FLOAT)
datapoint.add(metadata_static)
datapoint.add(metadata_dynamic)
target.add(datapoint)
agent.add(target)
# Return agent
return agent
def main():
"""Post data to pattoo server.
Args:
None
Returns:
None
"""
'''
NOTE:
Scripts must be run at regular intervals and the polling_interval
should be automatically provided to the main() function.
Notes about CRON:
When using cron, change this value to match the cron interval in seconds.
It is not advised to use cron for polling unless you know the interval
will not change. If using cron, remember to make the polling interval to
match the cron interval in 'seconds'.
Ideally your agents should run as daemons, not as cron jobs. See the daemon
example script which explains how to do this.
'''
# Define the polling interval in seconds (integer).
polling_interval = 300
# Give the agent a name
agent_name = 'sample_agent_script'
# Let's assume the script has already received this data from SITE_A
site_a_data = [['ABC', 123.456], ['DEF', 456.789]]
# Let's assume the script has already received this data from WORK_1
work_1_data = [['GHI', 654.321], ['JKL', 987.654]]
'''
NOTE:
The AgentPolledData object contains unique identification information
that the pattoo server will use to differentiate the information source.
This includes: the hostname of the system on which the object was created,
a unique hashed identifier stored in the cache directory of the agent
configuration.
You just need to write an agent to do one thing well, such data collection
from a type of target source. For example, you don't need to give each
agent that does the same thing a different "agent_name". Just make sure
that different types of agents have different "agent_name" values.
The PattooShared library will take care of the rest.
'''
# Setup the agent's AgentPolledData object.
agent = AgentPolledData(agent_name, polling_interval)
'''
NOTE:
Metadata is normally expected to stay constant. If it changes then the
datapoint ID changes and you'll start plotting a brand new chart on the
pattoo server. The old chart will stop at the time the metadata changed.
In some cases, you may not want changing metadata to cause a brand new
plot. For example, your metadata for computer resource charting may include
the operating system version. This is useful background information, but
shouldn't impact charting if it changes. This type of metadata should be
dynamic.
'''
# Let's add some metadata that you don't want to affect charting in the
# event of a change. Department names change all the time.
metadata_static = DataPointMetadata('Department Name',
'The Palisadoes Foundation',
update_checksum=False)
# Let's add some metadata that will change and trigger a new chart.
metadata_dynamic = DataPointMetadata('Financial Year', '2020')
# Create target objects for SITE_A
target = TargetDataPoints('SITE_A')
for quote in site_a_data:
key, value = quote
'''
NOTE:
You don't have to specify the time when the data was collected.
The DataPoint object captures that information automatically. You can
also specify it using the timestamp= argument. See the class
documentation for details.
The default data_type is DATA_INT (integer). Read the documentation
for the various other data which cover float and counter values.
'''
datapoint = DataPoint(key, value, data_type=DATA_FLOAT)
datapoint.add(metadata_static)
datapoint.add(metadata_dynamic)
target.add(datapoint)
agent.add(target)
# Create target objects for WORK_1
target = TargetDataPoints('WORK_1')
for quote in work_1_data:
key, value = quote
datapoint = DataPoint(key, value, data_type=DATA_FLOAT)
datapoint.add(metadata_static)
datapoint.add(metadata_dynamic)
target.add(datapoint)
agent.add(target)
# Post the data to pattoo
post = PostAgent(agent)
post.post()
def test_add(self):
"""Testing function add."""
# Setup DataPoint - Valid
value = 1093454
_key_ = 'testing'
data_type = DATA_INT
variable = DataPoint(_key_, value, data_type=data_type)
# Test adding
for key, value in [(1, 2), (3, 4), (5, 6)]:
metadata = DataPointMetadata(key, value)
variable.add(metadata)
self.assertEqual(variable.metadata[str(key)], str(value))
self.assertEqual(len(variable.metadata), 3)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
73ce7225ca1ea55f53c96991c9922a185cf695224b94f2051b8a853049ba1935''')
# Test adding duplicates (no change)
for key, value in [(1, 2), (3, 4), (5, 6)]:
metadata = DataPointMetadata(key, value)
variable.add(metadata)
self.assertEqual(variable.metadata[str(key)], str(value))
self.assertEqual(len(variable.metadata), 3)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
73ce7225ca1ea55f53c96991c9922a185cf695224b94f2051b8a853049ba1935''')
# Test adding with now update_checksum set to False. No change
for key, value in [(10, 20), (30, 40), (50, 60)]:
metadata = DataPointMetadata(key, value, update_checksum=False)
variable.add(metadata)
self.assertEqual(variable.metadata[str(key)], str(value))
self.assertEqual(len(variable.metadata), 6)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
73ce7225ca1ea55f53c96991c9922a185cf695224b94f2051b8a853049ba1935''')
# Test adding with now update_checksum set to True. No change,
# as they have been added already.
for key, value in [(10, 20), (30, 40), (50, 60)]:
metadata = DataPointMetadata(key, value, update_checksum=True)
variable.add(metadata)
self.assertEqual(variable.metadata[str(key)], str(value))
self.assertEqual(len(variable.metadata), 6)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
73ce7225ca1ea55f53c96991c9922a185cf695224b94f2051b8a853049ba1935''')
# Test adding with now update_checksum set to True
for key, value in [(11, 21), (31, 41), (51, 61)]:
metadata = DataPointMetadata(key, value, update_checksum=True)
variable.add(metadata)
self.assertEqual(variable.metadata[str(key)], str(value))
self.assertEqual(len(variable.metadata), 9)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
2518ce8c9dc0683ef87a6a438c8c79c2ae3fd8ffd38032b6c1d253057d04c8f7''')
def test___init__(self):
"""Testing function __init__."""
# Setup DataPoint - Valid
value = 1093454
_key_ = 'testing'
_metakey = '_{}'.format(_key_)
timestamp = int(time.time() * 1000)
data_type = DATA_INT
variable = DataPoint(_key_, value, data_type=data_type)
variable.add(DataPointMetadata(_metakey, _metakey))
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, value)
self.assertEqual(variable.key, _key_)
self.assertTrue(variable.timestamp >= timestamp)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
306353a04200e3b889b18c6f78dd8e56a63a287218ec8424e22d31b4b961a905''')
self.assertEqual(variable.valid, True)
# Setup DataPoint - Valid
value = 1093454
timestamp = 7
_key_ = 'testing'
_metakey = '_{}'.format(_key_)
data_type = DATA_INT
variable = DataPoint(_key_,
value,
data_type=data_type,
timestamp=timestamp)
variable.add(DataPointMetadata(_metakey, _metakey))
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, value)
self.assertEqual(variable.key, _key_)
self.assertEqual(variable.timestamp, timestamp)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
306353a04200e3b889b18c6f78dd8e56a63a287218ec8424e22d31b4b961a905''')
self.assertEqual(variable.valid, True)
# Add metadata that should be ignored.
for key in DATAPOINT_KEYS:
variable.add(DataPointMetadata(key, '_{}_'.format(key)))
variable.add(DataPointMetadata(_metakey, _metakey))
# Test each variable (unchanged)
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, value)
self.assertEqual(variable.key, _key_)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
306353a04200e3b889b18c6f78dd8e56a63a287218ec8424e22d31b4b961a905''')
self.assertEqual(variable.valid, True)
# Setup DataPoint - invalid data_type
value = 1093454
_key_ = 'testing'
data_type = 123
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, value)
self.assertEqual(variable.key, _key_)
self.assertEqual(variable.valid, False)
# Setup DataPoint - invalid value for numeric data_type
value = '_123'
_key_ = 'testing'
data_type = DATA_INT
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, value)
self.assertEqual(variable.key, _key_)
self.assertEqual(variable.valid, False)
# Setup DataPoint - valid value for integer data_type but
# string for value
value = '1093454'
_key_ = 'testing'
data_type = DATA_INT
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, int(value))
self.assertEqual(variable.key, _key_)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
7f99301d9be275b14af5626ffabe22a154415ed2ef7dad37f1707bd25b6afdc6''')
self.assertEqual(variable.valid, True)
# Setup DataPoint - valid value for int data_type but
# string for value
value = '1093454.3'
_key_ = 'testing'
data_type = DATA_INT
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, int(float(value)))
self.assertEqual(variable.key, _key_)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
7f99301d9be275b14af5626ffabe22a154415ed2ef7dad37f1707bd25b6afdc6''')
self.assertEqual(variable.valid, True)
# Setup DataPoint - valid value for int data_type but
# string for value
value = '1093454.3'
_key_ = 'testing'
data_type = DATA_FLOAT
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, float(value))
self.assertEqual(variable.key, _key_)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
ab48bdc902e2ea5476a54680a7ace0971ab90edb3f6ffe00a89b2d1e17b1548d''')
self.assertEqual(variable.valid, True)
# Setup DataPoint - valid value for str data_type
for value in [0, 1, '1093454.3']:
_key_ = 'testing'
data_type = DATA_STRING
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.value, str(value))
self.assertEqual(variable.key, _key_)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
431111472993bf4d9b8b347476b79321fea8a337f3c1cb2fedaa185b54185540''')
self.assertEqual(variable.valid, True)
# Setup DataPoint - invalid value for str data_type
for value in [True, False, None]:
_key_ = 'testing'
data_type = DATA_STRING
variable = DataPoint(_key_, value, data_type=data_type)
# Test each variable
self.assertEqual(variable.data_type, data_type)
self.assertEqual(variable.valid, False)
self.assertEqual(variable.value, str(value))
self.assertIsNone(variable.key)
self.assertEqual(len(variable.checksum), 64)
self.assertEqual(
variable.checksum, '''\
a783370f88d8c54b5f5e6641af69d86dae5d4d62621d55cf7e63f6c66644c214''')
async def _serial_poller_async(tpp):
"""Poll OPCUA agent data.
Args:
tpp: TargetDataPoints object
Returns:
target_datapoints: TargetDataPoints object
"""
# Initialize key variables
connected = False
# Test for validity
if isinstance(tpp, TargetPollingPoints) is False:
return None
if isinstance(tpp.target, OPCUAauth) is False:
return None
if tpp.valid is False:
return None
# Create URL for polling
ip_target = tpp.target.ip_target
ip_port = tpp.target.ip_port
username = tpp.target.username
password = tpp.target.password
url = 'opc.tcp://{}:{}'.format(ip_target, ip_port)
# Intialize data gathering
target_datapoints = TargetDataPoints(ip_target)
# Create a client object to connect to OPCUA server
client = Client(url=url)
client.set_user(username)
client.set_password(password)
# Connect
try:
await client.connect()
connected = True
except:
log_message = (
'Authentication for polling target {} is incorrect'.format(url))
log.log2warning(51011, log_message)
pass
if connected is True:
for point in tpp.data:
# Make sure we have the right data type
if isinstance(point, PollingPoint) is False:
log_message = ('''\
Invalid polling point {} for OPC UA URL {}'''.format(point, url))
log.log2info(51012, log_message)
continue
# Get data
address = point.address
try:
node = client.get_node(address)
value = await node.read_value()
except BadNodeIdUnknown:
log_message = ('''\
OPC UA node {} not found on server {}'''.format(address, url))
log.log2warning(51015, log_message)
continue
except:
_exception = sys.exc_info()
log_message = ('OPC UA server communication error')
log.log2exception(51014, _exception, message=log_message)
log_message = ('''\
Cannot get value from polling point {} for OPC UA URL {}\
'''.format(address, url))
log.log2info(51013, log_message)
continue
# Create datapoint
if bool(point.multiplier) is True:
if is_numeric(value) is True and (is_numeric(point.multiplier)
is True):
value = value * point.multiplier
else:
value = 0
datapoint = DataPoint(address, value)
datapoint.add(DataPointMetadata('OPCUA Server', ip_target))
target_datapoints.add(datapoint)
# Disconnect client
await client.disconnect()
return target_datapoints
def _serial_poller(drv):
"""Poll each spoke in parallel.
Args:
drv: Target to poll
input_registers: Input registers to poll
holding_registers: Holding registers to poll
Returns:
ddv: TargetDataPoints for the ip_target
"""
# Intialize data gathering
ip_target = drv.target
ddv = TargetDataPoints(ip_target)
# Get list of type DataPoint
datapoints = []
for _rv in drv.data:
# Ignore invalid data
if isinstance(_rv, RegisterVariable) is False:
continue
if _rv.valid is False:
continue
# Poll
client = ModbusTcpClient(ip_target)
if isinstance(_rv, InputRegisterVariable):
try:
response = client.read_input_registers(_rv.address,
count=_rv.count,
unit=_rv.unit)
key = 'input_register'
except ConnectionException as _err:
log_message = ('''\
Cannot connect to target {} to retrieve input register {}, count {}, \
unit {}: {}'''.format(ip_target, _rv.register, _rv.count, _rv.unit, str(_err)))
log.log2warning(65028, log_message)
continue
except:
log_message = ('''\
Cause unknown failure with target {} getting input register {}, count {}, \
unit {}'''.format(ip_target, _rv.register, _rv.count, _rv.unit))
log.log2warning(65030, log_message)
continue
elif isinstance(_rv, HoldingRegisterVariable):
try:
response = client.read_holding_registers(_rv.address)
key = 'holding_register'
except ConnectionException:
log_message = ('''\
Cannot connect to target {} to retrieve input register {}, count {}, \
unit {}'''.format(ip_target, _rv.register, _rv.count, _rv.unit))
log.log2warning(65032, log_message)
continue
except:
log_message = ('''\
Cause unknown failure with target {} getting holding register {}, count {}, \
unit {}. [{}, {}, {}]\
'''.format(ip_target, _rv.register, _rv.count, _rv.unit,
sys.exc_info()[0],
sys.exc_info()[1],
sys.exc_info()[2]))
log.log2warning(65031, log_message)
continue
# Process data
if response.isError() is True:
_log_modbus(ip_target, _rv, response)
else:
values = response.registers
for data_index, _value in enumerate(values):
# Do multiplication
value = _value * _rv.multiplier
# Create DataPoint and append
new_key = ('{}_{}'.format(key, _rv.register + data_index))
datapoint = DataPoint(new_key, value, data_type=DATA_INT)
datapoint.add(DataPointMetadata('unit',
str(_rv.unit).zfill(3)))
datapoints.append(datapoint)
ddv.add(datapoints)
# Return
return ddv
def _create_datapoints(items):
"""Get PATOO_SNMP agent data.
Update the TargetDataPoints with DataPoints
Args:
items: Dict of type SNMPVariable keyed by OID branch
Returns:
result: List of DataPoints with metadata added
Method:
1) Poll all desired OIDs from the target target. Ignore shutdown
interfaces
2) Get the IfAlias, IfName, and ifDescr values for each snmp ifIndex
to use as metadata for DataPoints
3) Convert the polled datapoints to use a key of their MIB string
versus the OID as the key. Use the OID as a metadata value instead.
4) Add the IfAlias, IfName, and ifDescr values as metadata to
each datapoint.
"""
# Initialize key variables
result = []
ifindex_lookup = _metadata(items)
# Process the results
for key, polled_datapoints in items.items():
# Ignore keys used to create the ifindex_lookup
if key in ['ifDescr', 'ifName', 'ifAlias', 'ifIndex', 'ifAdminStatus']:
continue
# Evaluate DataPoint list data from remaining keys
for polled_datapoint in polled_datapoints:
if polled_datapoint.valid is False:
continue
# Reassign DataPoint values
ifindex = polled_datapoint.key.split('.')[-1]
if ifindex in ifindex_lookup:
# Ignore administratively down interfaces
if bool(ifindex_lookup[ifindex].ifadminstatus) is False:
continue
# Create a new Datapoint keyed by MIB equivalent
new_key = _key(polled_datapoint.key)
datapoint = DataPoint(new_key,
polled_datapoint.value,
data_type=polled_datapoint.data_type)
# Add metadata to the datapoint
datapoint.add(DataPointMetadata('oid', polled_datapoint.key))
if bool(ifindex_lookup[ifindex].ifdescr) is True:
datapoint.add(
DataPointMetadata('ifDescr',
ifindex_lookup[ifindex].ifdescr))
if bool(ifindex_lookup[ifindex].ifname) is True:
datapoint.add(
DataPointMetadata('ifName',
ifindex_lookup[ifindex].ifname))
# Add metadata to the datapoint (Don't update checksum as this
# value may change over time via configuration)
if bool(ifindex_lookup[ifindex].ifalias) is True:
datapoint.add(
DataPointMetadata('ifAlias',
ifindex_lookup[ifindex].ifalias,
update_checksum=False))
result.append(datapoint)
return result