exabgp.bgp.message.update.attribute.bgpls.link.temetric

Complexity

Total Complexity

1

Size/Duplication

Total Lines	37
Duplicated Lines	0 %

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	TeMetric.unpack()	0	4	1

# encoding: utf-8
"""
temetric.py

Created by Evelio Vila on 2016-12-01.
Copyright (c) 2014-2017 Exa Networks. All rights reserved.
"""
from struct import unpack

from exabgp.bgp.message.notification import Notify

from exabgp.bgp.message.update.attribute.bgpls.linkstate import LinkState
from exabgp.bgp.message.update.attribute.bgpls.linkstate import BaseLS


#     0                   1                   2                   3
#     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
#    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
#    |              Type             |             Length            |
#    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
#    |                    TE Default Link Metric                     |
#    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
#    https://tools.ietf.org/html/rfc7752#section-3.3.2.3 TE Metric


@LinkState.register()
class TeMetric(BaseLS):
    TLV = 1092
    REPR = 'TE Default Metric'
    JSON = 'te-metric'
    LEN = 4

    @classmethod
    def unpack(cls, data, length):
        cls.check(length)
        return cls(unpack('!L', data)[0])