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Hutool是一个小而全的Java工具类库,通过静态方法封装,降低相关API的学习成本,提高工作效率,使Java拥有函数式语言般的优雅,让Java语言也可以“甜甜的”。
package cn.hutool.core.thread;
import java.lang.reflect.UndeclaredThrowableException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
/**
* {@link CompletableFuture}异步工具类
* {@link CompletableFuture} 是 Future 的改进,可以通过传入回调对象,在任务完成后调用之
*
* @author [email protected]
* @since 5.7.17
*/
public class AsyncUtil {
/**
* 等待所有任务执行完毕,包裹了异常
*
* @param tasks 并行任务
* @throws UndeclaredThrowableException 未受检异常
*/
public static void waitAll(CompletableFuture>... tasks) {
try {
CompletableFuture.allOf(tasks).get();
} catch (InterruptedException | ExecutionException e) {
throw new ThreadException(e);
}
}
/**
* 等待任意一个任务执行完毕,包裹了异常
*
* @param 任务返回值类型
* @param tasks 并行任务
* @return 执行结束的任务返回值
* @throws UndeclaredThrowableException 未受检异常
*/
@SuppressWarnings("unchecked")
public static T waitAny(CompletableFuture>... tasks) {
try {
return (T) CompletableFuture.anyOf(tasks).get();
} catch (InterruptedException | ExecutionException e) {
throw new ThreadException(e);
}
}
/**
* 获取异步任务结果,包裹了异常
*
* @param 任务返回值类型
* @param task 异步任务
* @return 任务返回值
* @throws RuntimeException 未受检异常
*/
public static T get(CompletableFuture task) {
try {
return task.get();
} catch (InterruptedException | ExecutionException e) {
throw new ThreadException(e);
}
}
}
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