cmdb

可插拔式设计

#settings


PLUGINS_DICT = {
    'basic' : 'src.plugins.basic.Basic',
    'cpu' : 'src.plugins.cpu.Cpu',
    'disk' : 'src.plugins.disk.Disk',
    'memory' : 'src.plugins.memory.Memory',
    'nic' : 'src.plugins.nic.Nic',
}
-----------------------------------------------


class PluginsManager(object):

    def __init__(self, hostname=None):
         #获取配置文件中 PLUGINS_DICT
        self.plugins_dict = settings.PLUGINS_DICT     
    def execute(self):
        response = {}
        for k, v in self.plugins_dict.items():

                 k : basic
                 v : src.plugins.baisc.Basic
                module_name, class_name = v.rsplit('.', 1)
                # 如何将一个包以字符串的形式导入
                module_path = importlib.import_module(module_name)
                ## 2. 将v中的Basic类, 导入, 并实例化, 然后执行process
                cls = getattr(module_path, class_name)
                res = cls().process(self._cmd_run, self.debug)
                #每个类下都有process方法