用道具初始化演员

本文介绍了用道具初始化演员的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有以下FSM

public class ActorOnFsm { public static enum State { FirstState, SecondState, ThirdState, FourthState } public static final class ServiceData { } public class ActorFSM extends AbstractFSM<State, ServiceData> { { startWith(FirstState, new ServiceData()); when(FirstState, matchEvent(SomeMessage.class, ServiceData.class, (powerOn, noData) -> goTo(SecondState) .replying(SecondState)) ); when(SecondState, matchEvent(SomeOtherMessage.class, ServiceData.class, (powerOn, noData) -> goTo(ThirdState) .replying(ThirdState)) ); when(FirstState, matchEvent(soemErrorMessage.class, ServiceData.class, (powerOn, noData) -> goTo(FourthState) .replying(FourthState)) ); initialize(); } } }

我像这样初始化演员

最终道具props = Props.create（ActorOnFsm.class）; 最终ActorRef underTest = system.actorOf（props）;

final Props props = Props.create(ActorOnFsm.class); final ActorRef underTest = system.actorOf(props);

这会产生错误 未知的演员创建​​者[ActorOnFsm]

This gives an error " unknown actor creator [ActorOnFsm] on the line

final Props props = Props.create(ActorOnFsm.class);

初始化该参与者的正确方法是什么？

Wht is the correct way to initialize this actor?

我还尝试过更改类以扩展AbstractLogging但结果相同

I also tried changing the class to extend AbstractLogging but same result

我还尝试创建一个空构造函数但结果相同

I also tried creating an empty constructor but same result

尝试发送道具中的状态和数据，但仍然收到相同的错误

Tried sending the state and data in the props but still get the same error

final Props props = Props.create(DeployerOnFsm.class, state, data);

推荐答案

您应该传递给 Props 工厂的类是 ActorFSM ，该类在 ActorOnFsm ：

The class that you should pass to the Props factory is ActorFSM, which is defined inside ActorOnFsm:

final Props props = Props.create(ActorOnFsm.ActorFSM.class);

但是，将内部类传递给 Props 工厂可能会有问题。将 ActorFSM 设为顶级类会更加常规，在这种情况下，对 Props 的调用将变为：

However, there may be issues with passing an inner class to the Props factory. It would be more conventional to make ActorFSM a top-level class, in which case the call to Props would change to:

final Props props = Props.create(ActorFSM.class);

此外，您似乎在状态转换之一中有错字：

Also, you appear to have a typo in one of your state transitions:

when(FirstState, matchEvent(soemErrorMessage.class, // ^

大概是您打算编写 SomeErrorMessage.class 而不是 soemErrorMessage。类。

Presumably, you intended to write SomeErrorMessage.class instead of soemErrorMessage.class.