executor

type Executor interface {
	//launch taskgroup
	LaunchTaskgroup(*mesos.TaskGroupInfo)

	//shut down
	Shutdown()

	//register callback function
	RegisterCallbackFunc(types.CallbackFuncType, interface{})

	//Get Executor status
	GetExecutorStatus() types.ExecutorStatus

	//reload tasks, exec reloadCmd
	ReloadTasks() error

	//restart tasks, exec restartCmd
	RestartTasks() error

	AckTaskStatusMessage(taskId string, uuid []byte)
}