重复的消费者循环 [英] Repetitive Consumer For Loop
问题描述
我正在使用带有方法的库,在该方法中,我调用一个采用事件类的方法,并在事件触发时调用使用者.此方法返回一个空值.我需要在使用者中再次调用该方法,然后在该使用者中再次调用它,等等(很多次).我如何将其放入for循环中,以免输入大量这种方法? 代码:
I am using a library with a method where I call a method that takes an event class and a consumer to call when the event fires. This method returns a void. I need to call the method again in the consumer then in that consumer call it again etc. (a lot of times). How can I put this in a for loop to avoid typing out this method loads of times? Code:
ShurikenBot.getInstance().getEventWaiter().waitForEvent(MessageReactionAddEvent.class,
t -> t.getMessageId().equals(m.getId()) && event.getAuthor().getId().equals(t.getMember().getUser().getId())
&& t.getReaction().getReactionEmote().getName().equals("\u25B6"),
t ->
t.getChannel().getMessageById(t.getMessageId()).queue(msg -> {
System.out.println("yes");
// i want to call waitForEvent() again here
msg.editMessage(builder.setTitle("Shuriken Tutorial - Step 2").setImage("https://i.615283.net/u/47794c.jpg").build()).queue();
t.getReaction().removeReaction(t.getUser()).queue();
}));
推荐答案
您可以使用通用事件侦听器来创建State-Machine,而不是使用EventWaiter.
Instead of using the EventWaiter you could create a State-Machine using a generic event listener.
public class StateMachine extends ListenerAdapter {
private final long messageId;
private final long userId;
private final String emoji;
private int state = 0;
public StateMachine(...) {...}
@Override
public void onMessageReactionAdd(MessageReactionAddEvent event) {
if (event.getMessageIdLong() != messageId) return;
if (event.getUser().getIdLong() != userId) return;
if (!event.getReactionEmote().getName().equals(emoji)) return;
switch (state) {
case 0:
System.out.println("yes");
event.getChannel().editMessageById(messageId, ...).queue();
event.getReaction().removeReaction(event.getUser()).queue();
state = 1;
break;
case 1:
System.out.println("This is the next awaited event");
// do something here...
break;
}
}
}
然后,您可以定义最终状态,在该状态下您将再次删除事件侦听器.
Then you can define a final state in which you remove the event listener again.
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