ThreadFactoryBuilder,它更好!
我们程序的日志链路追踪id(trace_id)通常通过线程名(或通过log框架的MDC)来实现。
相较于juc.ThreadFactory来说,hutool、guava均提供了ThreadFactoryBuilder,更方便我们使用。
java rt包:JUC下面原生ThreadFactory类
// import java.util.concurrent.ThreadFactory;
private static ExecutorService paymentPool = Executors.newSingleThreadExecutor(new ThreadFactory() {
@Override
public Thread newThread(@NotNull Runnable r) {
return new Thread(r, "Alipay-Msg-Thread");
}
});
这种方式创建的线程名都是相同的。不太契合我们记日志的需求。
2022-03-23 12:20:14,019 INFO [Alipay-Msg-Thread] TestMain (TestMain:67) - ddd
hutool里的ThreadFactoryBuilder
// import cn.hutool.core.thread.ThreadFactoryBuilder
private static ScheduledExecutorService scheduledThreadPoolExecutor = Executors.newScheduledThreadPool(5,
ThreadFactoryBuilder.create().setNamePrefix(PaymentServiceImpl.class.getSimpleName().concat("_")).build());
log效果:
2022-03-23 12:20:14,019 INFO [PaymentServiceImpl_1] TestMain (TestMain:70) - sched2
2022-03-23 12:20:14,019 INFO [PaymentServiceImpl_0] TestMain (TestMain:68) - sched
google guava.jar里的ThreadFactoryBuilder
// import com.google.common.util.concurrent.ThreadFactoryBuilder
private static ExecutorService paymentPool = Executors.newSingleThreadExecutor(
new ThreadFactoryBuilder().setNameFormat("PaymentService_pool_%d").build());
log效果:
2022-03-23 12:20:14,019 INFO [PaymentService_pool_1] TestMain (TestMain:67) - ddd
2022-03-23 12:20:14,019 INFO [PaymentService_pool_2] TestMain (TestMain:67) - ddd
比较
hutool的ThreadFactoryBuilder提供的api是设置线程名前缀,我们无需关注占位符。
guava的ThreadFactoryBuilder提供的api是format,需考虑占位符。
另外,从建造者模式(Builder Pattern)的角度来说,通常我们在使用时,应先调用实例的create或build方法,这一点,hutool做得稍优秀一些。
相比来说,个人觉得hutool更容易上手使用。
你用哪些ThreadFactoryBuilder呢?
欢迎交流!
当看到一些不好的代码时,会发现我还算优秀;当看到优秀的代码时,也才意识到持续学习的重要!--buguge
本文来自博客园,转载请注明原文链接:https://www.cnblogs.com/buguge/p/16131838.html