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SNMP.py 2.96 KiB
# -*- coding: utf-8 -*-
#
# This file is part of the PCC project
#
#
#
# Distributed under the terms of the APACHE license.
# See LICENSE.txt for more info.
""" PCC Device Server for LOFAR2.0
"""
# PyTango imports
from tango.server import run
from tango.server import device_property
# Additional import
from clients.SNMP_client import SNMP_client
from src.attribute_wrapper import *
from src.hardware_device import *
__all__ = ["PCC", "main"]
class PCC(hardware_device):
"""
**Properties:**
- Device Property
SNMP_community
- Type:'DevString'
SNMP_host
- Type:'DevULong'
SNMP_timeout
- Type:'DevDouble'
"""
# -----------------
# Device Properties
# -----------------
SNMP_community = device_property(
dtype='DevString',
mandatory=True
)
SNMP_host = device_property(
dtype='DevString',
mandatory=True
)
SNMP_timeout = device_property(
dtype='DevDouble',
mandatory=True
)
# ----------
# Attributes
# ----------
attr0 = attribute_wrapper(comms_annotation={"oids": [""]}, datatype=numpy.bool_, dims=(32,), access=AttrWriteType.READ_WRITE)
attr1 = attribute_wrapper(comms_annotation={"oids": ["1.3.6.1.2.1.1.6.0"]}, datatype=numpy.bool_, access=AttrWriteType.READ_WRITE)
attr2 = attribute_wrapper(comms_annotation={"host": "127.0.0.1", "oids": ["1.3.6.1.2.1.1.5.0"]}, datatype=numpy.bool_, access=AttrWriteType.READ_WRITE)
attr3 = attribute_wrapper(comms_annotation={"host": "127.0.0.1", "oids": ["1.3.6.1.2.1.1.5.1", "1.3.6.1.2.1.1.5.2", "1.3.6.1.2.1.1.5.3"]}, dims=(3,), datatype=numpy.bool_)
attr4 = attribute_wrapper(comms_annotation={"host": "127.0.0.1", "oids": ["1.3.6.1.2.1.1.5.0"]}, dims=(3,), datatype=numpy.bool_)
# ["1.3.6.1.2.1.1.5.0"] gets transformed in to an array the size of dims with ".1", ".2" .. added
# ["1.3.6.1.2.1.1.5.0.1", "1.3.6.1.2.1.1.5.0.2", "1.3.6.1.2.1.1.5.0.3"]
def always_executed_hook(self):
"""Method always executed before any TANGO command is executed."""
pass
def delete_device(self):
"""Hook to delete resources allocated in init_device.
This method allows for any memory or other resources allocated in the
init_device method to be released. This method is called by the device
destructor and by the device Init command (a Tango built-in).
"""
self.debug_stream("Shutting down...")
self.Off()
self.debug_stream("Shut down. Good bye.")
# --------
# overloaded functions
# --------
def initialise(self):
""" user code here. is called when the state is set to STANDBY """
#set up the SNMP ua client
self.snmp_manager = SNMP_client(self.SNMP_community, self.SNMP_host, self.SNMP_timeout, self.Standby, self.Fault, self)
# map the attributes to the OPC ua comm client
for i in self.attr_list():
i.set_comm_client(self.OPCua_client)
self.OPCua_client.start()
# --------
# Commands
# --------
# ----------
# Run server
# ----------
def main(args=None, **kwargs):
"""Main function of the PCC module."""
return run((PCC,), args=args, **kwargs)
if __name__ == '__main__':
main()