#!/usr/bin/python # -*- coding: UTF-8 -*- import os import sys import getopt,string import fcntl import time import updateVrrpState import haCommon try: from xml.etree import ElementTree except ImportError: from elementtree import Eleme...-DPDK中文网

在你提供的代码中，使用ElementTree来处理XML文件时，元素的顺序可能会被打乱。这是因为ElementTree在解析和写入XML文件时，并不保留元素的顺序。如果你需要确保元素的顺序保持不变，可以考虑使用OrderedDict。

下面是一个优化建议，使用collections模块中的OrderedDict来保存接口节点的顺序：

import os 
import sys
import getopt,string
import fcntl
import time
import updateVrrpState
import haCommon

try:
    from xml.etree import ElementTree
except ImportError:
    from elementtree import ElementTree
from cmdtunnel import cmdtunnel_client

from collections import OrderedDict

def update_ospfv2_config_status(interfaces,status):
    try:
        metric = 0
        if status == "master":
            metric = 1
        else:
            metric = 65535
        
        
        # 读取XML文件
        tree = ElementTree.parse('/opt/nsfocus/product/etc/frr/ospf_conf.xml')
        root = tree.getroot()

        # 使用OrderedDict来保存接口节点的顺序
        existing_interfaces = OrderedDict()
        
        # 获取XML中所有interface节点的name属性，组装成字典（按照插入顺序）
        for interface in root.findall('.//interface'):
            name = interface.get('name')
            existing_interfaces[name] = interface

        # 遍历传入的接口数组
        for intf in interfaces:
            if intf in existing_interfaces:
                # 如果接口已存在于XML中，则更新metric的值
                interface = existing_interfaces[intf]
                interface.set('metric', str(metric))
            else:
                # 如果接口不存在于XML中，则新增一个interface节点
                new_interface = ElementTree.Element('interface', attrib={'auth_type': 'none', 'dead_count': '40', 'hello_int': '10', 'key_id': '', 'metric': str(metric), 'name': intf, 'pass': '', 'priority': '1', 'retransmit_int': '5', 'transmit_delay': '1'})
                existing_interfaces[intf] = new_interface

        # 清空原有的接口节点
        root.find('.//interfaces').clear()
        
        # 将按顺序保存的接口节点重新添加到root中
        for interface in existing_interfaces.values():
            root.find('.//interfaces').append(interface)
        
        # 保存修改后的XML文件
        tree.write('/opt/nsfocus/product/etc/frr/ospf_conf.xml', encoding='utf-8', xml_declaration=True)
    except Exception as e:
        print("An error occurred:", e)
        return 10

if __name__ == "__main__":
    try:
        interfaces = ["G1/1", "G1/2", "G1/7"]
        update_ospfv2_config_status(interfaces,"master")
    except Exception as e:
        print("An error occurred:", e)
        sys.exit(1)

通过使用OrderedDict，可以保留字典中元素的插入顺序，从而确保写回XML文件时元素的顺序不会被打乱。

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#!/usr/bin/python # -- coding: UTF-8 -- import os import sys import getopt,string import fcntl import time import updateVrrpState import haCommon try: from xml.etree import ElementTree except ImportError: from elementtree import Eleme...

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#!/usr/bin/python # -*- coding: UTF-8 -*- import os import sys import getopt,string import fcntl import time import updateVrrpState import haCommon try: from xml.etree import ElementTree except ImportError: from elementtree import Eleme...

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