action.py 文件源码

def register(cls, action):
        action_logger.info("Registering action :%s" % action)
        if isinstance(action, (types.FunctionType, staticmethod)):
            name = action.__name__
            cls._actions[name.upper()] = action
            setattr(cls, name, action)
        elif isinstance(action, types.ClassType) and hasattr(action, "__call__"):
            name = action.__name__
            action = action()
            cls._actions[name.upper()] = action
            setattr(cls, name, action)
        elif (isinstance(action, (types.InstanceType, types.ObjectType))
              and hasattr(action, "__call__")):
            if isinstance(action, type):
                name = action.__name__
                action = action()
            else:
                name = action.__class__.__name__
            cls._actions[name.upper()] = action
            setattr(cls, name, action)

        else:
            name = str(action)
            action_logger.error("Error registering action :%s" % action)
            raise UnknownAction("unable to register action %s!!" %name)