Timeouts in Miranda

Based on the provided input, here’s the translation of the Go code to Java, along with explanations in Markdown format suitable for Hugo:

Timeouts are important for programs that connect to external resources or that otherwise need to bound execution time. Implementing timeouts in Java is possible using the java.util.concurrent package, particularly the ExecutorService, Future, and TimeUnit classes.

import java.util.concurrent.*;

public class Timeouts {
    public static void main(String[] args) {
        ExecutorService executor = Executors.newFixedThreadPool(2);

        // For our example, suppose we're executing an external
        // call that returns its result after 2s. We'll use a
        // Callable to simulate this behavior.
        Callable<String> task1 = () -> {
            Thread.sleep(2000);
            return "result 1";
        };

        Future<String> future1 = executor.submit(task1);

        try {
            // Here we're implementing a timeout.
            // We'll wait for the result for 1 second.
            // If the task doesn't complete in 1 second, a
            // TimeoutException will be thrown.
            String result = future1.get(1, TimeUnit.SECONDS);
            System.out.println(result);
        } catch (TimeoutException e) {
            System.out.println("timeout 1");
        } catch (Exception e) {
            e.printStackTrace();
        }

        // If we allow a longer timeout of 3s, then the task
        // will complete and we'll print the result.
        Callable<String> task2 = () -> {
            Thread.sleep(2000);
            return "result 2";
        };

        Future<String> future2 = executor.submit(task2);

        try {
            String result = future2.get(3, TimeUnit.SECONDS);
            System.out.println(result);
        } catch (TimeoutException e) {
            System.out.println("timeout 2");
        } catch (Exception e) {
            e.printStackTrace();
        }

        executor.shutdown();
    }
}

Running this program shows the first operation timing out and the second succeeding.

$ javac Timeouts.java
$ java Timeouts
timeout 1
result 2

In this Java implementation:

We use ExecutorService to manage our tasks.
Each task is represented by a Callable, which is similar to a runnable but can return a result.
We submit tasks to the executor and get back Future objects.
We use the Future.get() method with a timeout to wait for the result.
If the task doesn’t complete within the specified time, a TimeoutException is thrown.

This approach provides similar functionality to the original example, allowing us to set timeouts for long-running operations.

Select in Miranda

Non Blocking Channel Operations in Miranda

Learn X By Example

Title here

Timeouts in Miranda