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https://github.com/CumulusNetworks/ifupdown2.git
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15ef32ea14
Ticket: CM-3864 Reviewed By: Testing Done: Tested build and install open item: - cleanup stale ifupdown2-addons package files
91 lines
2.5 KiB
Python
91 lines
2.5 KiB
Python
#!/usr/bin/python
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#
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# Copyright 2014 Cumulus Networks, Inc. All rights reserved.
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# Author: Roopa Prabhu, roopa@cumulusnetworks.com
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#
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import pprint
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from collections import OrderedDict
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class linkCache():
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""" This class contains methods and instance variables to cache
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link info """
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_shared_state = {}
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""" { <ifacename> : { 'ifindex': <index>,
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'mtu': <mtu>,
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'state' : <state>',
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'flags' : <flags>,
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'kind' : <kind: bridge, bond, vlan>,
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'linkinfo' : {<attr1> : <attrval1>,
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<attr2> : <attrval2>,
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<ports> : {
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} """
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links = {}
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@classmethod
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def get_attr(cls, mapList):
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return reduce(lambda d, k: d[k], mapList, linkCache.links)
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@classmethod
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def set_attr(cls, mapList, value):
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cls.get_attr(mapList[:-1])[mapList[-1]] = value
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@classmethod
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def del_attr(cls, mapList):
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try:
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del cls.get_attr(mapList[:-1])[mapList[-1]]
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except:
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pass
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@classmethod
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def update_attrdict(cls, mapList, valuedict):
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try:
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cls.get_attr(mapList[:-1])[mapList[-1]].update(valuedict)
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except:
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cls.get_attr(mapList[:-1])[mapList[-1]] = valuedict
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pass
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@classmethod
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def append_to_attrlist(cls, mapList, value):
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cls.get_attr(mapList[:-1])[mapList[-1]].append(value)
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@classmethod
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def remove_from_attrlist(cls, mapList, value):
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try:
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cls.get_attr(mapList[:-1])[mapList[-1]].remove(value)
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except:
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pass
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@classmethod
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def check_attr(cls, attrlist, value=None):
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try:
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cachedvalue = cls.get_attr(attrlist)
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if value:
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if cachedvalue == value:
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return True
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else:
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return False
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elif cachedvalue:
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return True
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else:
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return False
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except:
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return False
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@classmethod
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def invalidate(cls):
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cls.links = {}
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@classmethod
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def dump(cls):
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print 'Dumping link cache'
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pp = pprint.PrettyPrinter(indent=4)
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pp.pprint(cls.links)
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@classmethod
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def dump_link(cls, linkname):
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print 'Dumping link %s' %linkname
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pp = pprint.PrettyPrinter(indent=4)
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pp.pprint(cls.links.get(linkname))
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