Hands-On Enterprise Java Microservices with Eclipse MicroProfile

The OpenTracing tab

The OpenTracing tab shows the following view with two links:

The first link accesses the following io.packt.sample.tracing.TracedEndpoint method:

@GET@Path("/randomDelay")@Produces(MediaType.TEXT_PLAIN)@Traced(operationName = "TracedEndpoint#demoRandomDelay")public String randomDelay() {    long start = System.currentTimeMillis();    // 0-5 seconds random sleep    long sleep = Math.round(Math.random() * 5000);    try {        Thread.sleep(sleep);    } catch (InterruptedException e) {        e.printStackTrace();    }    long end = System.currentTimeMillis();    return String.format("TracedEndpoint.randomDelay[0-5000], elapsed=%d",     (end - start));}

The method ...