def set_handler(self, method, config):
"""更换子处理模块
参数:
method:方法名,
config:配置dict
返回:
如果成功设置handler,返回{"status":0,"ret":""}
设置失败,返回{"status":1,"ret":error_message}
"""
#如果存在实例,在更换模块前清理之前模块的连接
if self.handler_instance != None:
self.handler_instance.destroy_connection()
self.handler_instance = str_to_class(
"handler_module."+method+"_handler",
"".join([m.capitalize() for m in method.split("_")])
+"Handler", config)
#如果实例化失败,返回错误信息
if self.handler_instance is None:
return {
"status":1,
"ret":"fail to set handler."
}
return {
"status":0,
"ret":""
}
def set_modules(self, modules):
"""更换收集模块
参数:
更换的模块string list
返回:
更换模块并实例化成功返回 {"status":0,"ret":module list}
失败返回{"status":1,"ret":error_message}
"""
self.modules = modules
for module in self.modules:
#更换模块没有被初始化过或者之前实例化失败时重新实例化
if (module not in self.module_instance.keys() or
self.module_instance[module] == None):
self.module_instance[module] = str_to_class(
"collector_module."+module+"_collector",
"".join([m.capitalize() for m in module.split("_")])
+"Collector")
#如果此次实例化还是失败,返回错误信息
if self.module_instance[module] == None:
return {
"status":1,
"ret":"fail to set modules for collector."
}
return {
"status":0,
"ret":self.modules
}
def __init__(self, modules):
self.modules = modules
self.module_instance = {}
#由于要记录缓存,所以需要持有模块实例
for module in modules:
self.module_instance[module] = str_to_class(
"collector_module."+module+"_collector",
"".join([m.capitalize() for m in module.split("_")])
+"Collector")
def __init__(self, method, config):
"""初始化处理类
参数:
method:方法名
config:配置dict
返回:
无
"""
self.handler_instance = str_to_class(
"handler_module."+method+"_handler",
"".join([m.capitalize() for m in method.split("_")])
+"Handler", config)
