Java Thread Executor Execute runConcurrently(Runnable... tasks)

Description

run Concurrently

License

Open Source License

Declaration

public static void runConcurrently(Runnable... tasks) throws ExecutionException, InterruptedException 

Method Source Code

//package com.java2s;
// This software is released under the Apache License 2.0.

import java.util.*;
import java.util.concurrent.*;

public class Main {
    public static void runConcurrently(Runnable... tasks) throws ExecutionException, InterruptedException {
        ExecutorService executor = Executors.newFixedThreadPool(tasks.length);
        CountDownLatch allTasksStarted = new CountDownLatch(tasks.length);
        try {/*from  ww  w . j  a v  a 2s  .com*/
            List<Future<?>> futures = new ArrayList<>();
            for (Runnable task : tasks) {
                futures.add(executor.submit(() -> {
                    sync(allTasksStarted, 1000);
                    task.run();
                }));
            }
            for (Future<?> future : futures) {
                future.get();
            }
        } finally {
            executor.shutdownNow();
        }
    }

    public static void sync(CountDownLatch barrier, long timeoutMillis) {
        barrier.countDown();
        await(barrier, timeoutMillis);
    }

    public static void await(CountDownLatch barrier, long timeoutMillis) {
        try {
            barrier.await(timeoutMillis, TimeUnit.MILLISECONDS);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
    }
}

Related

1. invokeAsync(Runnable runnable)
2. invokeLater(Runnable runnable)
3. invokeOnBackgroundThread(Runnable runnable)
4. run(Runnable target)
5. runConcurrently(final Runnable[] threads)
6. runInBackground(final Runnable task)
7. runInBackground(Runnable run)
8. runInNewThread(Runnable task)
9. runOnUI(Runnable runnable)