How Can I Create an ExecutorService That Interrupts Tasks After a Timeout?

Timeout Executor Service

Overview

In this context, we are interested in an ExecutorService implementation capable of interrupting tasks that exceed a predefined timeout.

Existing Implementations

One such implementation is TimeoutThreadPoolExecutor, which provides a mechanism to specify a timeout duration for submitted tasks.

Implementation Details

<br>import java.util.List;<br>import java.util.concurrent.*;<p>public class TimeoutThreadPoolExecutor extends ThreadPoolExecutor {</p><pre class="brush:php;toolbar:false">private final long timeout;
private final TimeUnit timeoutUnit;

// ... (rest of the implementation)

}

Usage

To utilize this executor service, simply create an instance, specifying the desired timeout:

TimeoutThreadPoolExecutor executor = new TimeoutThreadPoolExecutor(..., timeout, TimeUnit.MILLISECONDS);

Then, submit your tasks to the executor as usual. Tasks that exceed the specified timeout will be interrupted.

Alternative Approach

Alternatively, you can employ a ScheduledExecutorService:

ScheduledExecutorService executor = Executors.newScheduledThreadPool(2);
Future> handler = executor.submit(new Callable() { /* ... */ });
executor.schedule(() -> handler.cancel(true), 10000, TimeUnit.MILLISECONDS);

This strategy ensures that the task is interrupted after 10 seconds.

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