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#
# This file is part of pysnmp software.
#
# Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com>
# License: http://snmplabs.com/pysnmp/license.html
#
from pysnmp.proto.mpmod import cache
from pysnmp.proto import error
class AbstractMessageProcessingModel(object):
SNMP_MSG_SPEC = NotImplementedError
def __init__(self):
self._snmpMsgSpec = self.SNMP_MSG_SPEC() # local copy
self._cache = cache.Cache()
def prepareOutgoingMessage(self, snmpEngine, transportDomain,
transportAddress, messageProcessingModel,
securityModel, securityName, securityLevel,
contextEngineId, contextName, pduVersion,
pdu, expectResponse, sendPduHandle):
raise error.ProtocolError('method not implemented')
def prepareResponseMessage(self, snmpEngine, messageProcessingModel,
securityModel, securityName, securityLevel,
contextEngineId, contextName, pduVersion,
pdu, maxSizeResponseScopedPDU,
stateReference, statusInformation):
raise error.ProtocolError('method not implemented')
def prepareDataElements(self, snmpEngine, transportDomain,
transportAddress, wholeMsg):
raise error.ProtocolError('method not implemented')
def releaseStateInformation(self, sendPduHandle):
try:
self._cache.popBySendPduHandle(sendPduHandle)
except error.ProtocolError:
pass # XXX maybe these should all follow some scheme?
def receiveTimerTick(self, snmpEngine, timeNow):
self._cache.expireCaches()
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