需求:
1.我们希望玩家的业务在玩家线程执行,无需回调,因此是多线程处理。
2.匹配线程负责匹配逻辑,是单独一个线程。
3.排行榜线程负责玩家的上榜等。
4.从排行榜线程获取到排行榜列表后,需要给玩家发奖修改玩家数据,因此涉及到排行榜线程和玩家线程的交互。
5.房间线程也希望有多个,这样子各个房间之间业务无交互,进行并行执行。
ThreadManager.java // 负责所有线程的创建
package org.example.testLogicAndRank;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class ThreadManager {
/*** 逻辑专用线程*/
public static ExecutorService[] logicThreadArr;
/*** 房间专用线程*/
public static ExecutorService[] roomThreadArr;
/*** 排行榜专用线程*/
public static ExecutorService rankExecutorService = Executors.newSingleThreadExecutor(r -> {
Thread t = new Thread(r);
t.setName("RankThread");
return t;
});
/*** 匹配专用线程*/
public static ExecutorService matchExecutorService = Executors.newSingleThreadExecutor(r -> {
Thread t = new Thread(r);
t.setName("RankThread");
return t;
});
public static void init() {
// 逻辑线程池
logicThreadArr = new ExecutorService[Runtime.getRuntime().availableProcessors()];
for (int i = 0; i < logicThreadArr.length; i++) {
int finalI = i;
logicThreadArr[i] = Executors.newSingleThreadExecutor(r -> {
Thread t = new Thread(r);
t.setName("LogicThread" + finalI);
return t;
});
}
// 房间线程池
roomThreadArr = new ExecutorService[Runtime.getRuntime().availableProcessors()];
for (int i = 0; i < roomThreadArr.length; i++) {
int finalI = i;
roomThreadArr[i] = Executors.newSingleThreadExecutor(r -> {
Thread t = new Thread(r);
t.setName("RoomThread" + finalI);
return t;
});
}
}
}
LogicThreadManager.java //逻辑线程池
package org.example.testLogicAndRank;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.function.Consumer;
public class LogicThreadManager {
/**
* 从其他线程执行一个任务,然后将结果提交到逻辑线程
*
* @param completableFuture
* @param consumer
* @param <T>
*/
public static <T> void executeInLogicThread(CompletableFuture<T> completableFuture, Consumer<T> consumer, Object hashObj) {
ExecutorService executorService = ThreadManager.logicThreadArr[Math.abs(hashObj.hashCode()) % ThreadManager.logicThreadArr.length];
completableFuture.thenAcceptAsync(consumer, executorService);
}
}
RankThreadManager.java
package org.example.testLogicAndRank;
import com.google.common.collect.Lists;
import lombok.extern.slf4j.Slf4j;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
@Slf4j
public class RankThreadManager {
public static CompletableFuture<List<Integer>> getRankList() {
return submitInRankThread(() -> {
// 查询数据库
log.info("查询排行榜");
return Lists.newArrayList(1, 2, 3, 4, 5);
});
}
/**
* 在排行榜线程执行某个操作,有返回值
*
* @param callable
* @param <T>
* @return
*/
public static <T> CompletableFuture<T> submitInRankThread(Callable<T> callable) {
return CompletableFuture.supplyAsync(() -> {
try {
return callable.call();
} catch (Exception e) {
log.error("", e);
}
return null;
}, ThreadManager.rankExecutorService);
}
/**
* 在排行榜线程执行某个操作,无返回值
*/
public static void executeInRankThread(Runnable runnable) {
ThreadManager.rankExecutorService.submit(runnable);
}
}
Main.java
package org.example.testLogicAndRank;
import lombok.extern.slf4j.Slf4j;
import java.util.List;
import java.util.concurrent.CompletableFuture;
@Slf4j
public class Main {
public static void main(String[] args) {
ThreadManager.init();
// 排行榜
CompletableFuture<List<Integer>> rankListFuture = RankThreadManager.getRankList();
// 假设是给玩家1和2发奖
LogicThreadManager.executeInLogicThread(rankListFuture, (rankList) -> {
log.info("拿到排行榜数据发奖{}", rankList);
}, 1);
LogicThreadManager.executeInLogicThread(rankListFuture, (rankList) -> {
log.info("拿到排行榜数据发奖{}", rankList);
}, 2);
}
}
/*
17:16:39.314 [RankThread] INFO org.example.testLogicAndRank.RankManager - 查询排行榜
17:16:39.343 [LogicThread2] INFO org.example.testLogicAndRank.Main - 拿到排行榜数据发奖[1, 2, 3, 4, 5]
17:16:39.343 [LogicThread1] INFO org.example.testLogicAndRank.Main - 拿到排行榜数据发奖[1, 2, 3, 4, 5]
*/
总结:文章来源:https://www.toymoban.com/news/detail-814199.html
可以看出来,我们不再需要什么Promise模式了,有了CompletableFuture后,业务线程的编排和交换数据变得非常容易了!文章来源地址https://www.toymoban.com/news/detail-814199.html
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