32 lines
924 B
Java
32 lines
924 B
Java
// concurrent/QuittingTasks.java
|
|
// (c)2016 MindView LLC: see Copyright.txt
|
|
// We make no guarantees that this code is fit for any purpose.
|
|
// Visit http://OnJava8.com for more book information.
|
|
import java.util.*;
|
|
import java.util.stream.*;
|
|
import java.util.concurrent.*;
|
|
|
|
public class QuittingTasks {
|
|
public static void main(String[] args)
|
|
throws InterruptedException {
|
|
ExecutorService exec =
|
|
Executors.newCachedThreadPool();
|
|
List<QuittableTask> tasks =
|
|
IntStream.range(1, 1000)
|
|
.mapToObj(i -> new QuittableTask())
|
|
.peek(exec::execute)
|
|
.collect(Collectors.toList());
|
|
TimeUnit.MILLISECONDS.sleep(100);
|
|
tasks.forEach(QuittableTask::quit);
|
|
exec.shutdown();
|
|
exec.awaitTermination(1, TimeUnit.SECONDS);
|
|
// See if any tasks are still running:
|
|
System.out.println(
|
|
tasks.stream()
|
|
.anyMatch(QuittableTask::running));
|
|
}
|
|
}
|
|
/* Output:
|
|
false
|
|
*/
|