Examples with Scope io.opentracing.Scope used on opensource projects

Example 11 with Scope

use of io.opentracing.Scope in project opentracing-java by opentracing.

the class ActiveSpanReplacementTest method test.

@Test
public void test() throws Exception {
    // Start an isolated task and query for its result in another task/thread
    try (Scope scope = tracer.buildSpan("initial").startActive(false)) {
        // Explicitly pass a Span to be finished once a late calculation is done.
        submitAnotherTask(scope.span());
    }
    await().atMost(15, TimeUnit.SECONDS).until(finishedSpansSize(tracer), equalTo(3));
    List<MockSpan> spans = tracer.finishedSpans();
    assertEquals(3, spans.size());
    // Isolated task
    assertEquals("initial", spans.get(0).operationName());
    assertEquals("subtask", spans.get(1).operationName());
    assertEquals("task", spans.get(2).operationName());
    // task/subtask are part of the same trace, and subtask is a child of task
    assertEquals(spans.get(1).context().traceId(), spans.get(2).context().traceId());
    assertEquals(spans.get(2).context().spanId(), spans.get(1).parentId());
    // initial task is not related in any way to those two tasks
    assertNotEquals(spans.get(0).context().traceId(), spans.get(1).context().traceId());
    assertEquals(0, spans.get(0).parentId());
    assertNull(tracer.scopeManager().active());
}

Example 12 with Scope

use of io.opentracing.Scope in project opentracing-java by opentracing.

the class Actor method ask.

public Future<String> ask(final String message) {
    final Span parent = tracer.scopeManager().active().span();
    phaser.register();
    Future<String> future = executor.submit(new Callable<String>() {

        @Override
        public String call() throws Exception {
            try (Scope child = tracer.buildSpan("received").addReference(References.FOLLOWS_FROM, parent.context()).withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_CONSUMER).startActive(true)) {
                // child tracer started
                phaser.arriveAndAwaitAdvance();
                // assert size
                phaser.arriveAndAwaitAdvance();
                return "received " + message;
            } finally {
                // child tracer finished
                phaser.arriveAndAwaitAdvance();
                // assert size
                phaser.arriveAndAwaitAdvance();
            }
        }
    });
    return future;
}

Example 13 with Scope

use of io.opentracing.Scope in project opentracing-java by opentracing.

the class Client method send.

public void send() throws InterruptedException {
    Message message = new Message();
    try (Scope scope = tracer.buildSpan("send").withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_CLIENT).withTag(Tags.COMPONENT.getKey(), "example-client").startActive(true)) {
        tracer.inject(scope.span().context(), Builtin.TEXT_MAP, new TextMapInjectAdapter(message));
        queue.put(message);
    }
}

Example 14 with Scope

use of io.opentracing.Scope in project opentracing-java by opentracing.

the class ActorPropagationTest method testActorAsk.

@Test
public void testActorAsk() throws ExecutionException, InterruptedException {
    try (Actor actor = new Actor(tracer, phaser)) {
        phaser.register();
        Future<String> future1;
        Future<String> future2;
        try (Scope parent = tracer.buildSpan("actorAsk").withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_PRODUCER).withTag(Tags.COMPONENT.getKey(), "example-actor").startActive(true)) {
            future1 = actor.ask("my message 1");
            future2 = actor.ask("my message 2");
        }
        // child tracer started
        phaser.arriveAndAwaitAdvance();
        assertThat(tracer.finishedSpans().size()).isEqualTo(1);
        // continue...
        phaser.arriveAndAwaitAdvance();
        // child tracer finished
        phaser.arriveAndAwaitAdvance();
        assertThat(tracer.finishedSpans().size()).isEqualTo(3);
        assertThat(getByTag(tracer.finishedSpans(), Tags.SPAN_KIND, Tags.SPAN_KIND_CONSUMER)).hasSize(2);
        // continue...
        phaser.arriveAndDeregister();
        List<MockSpan> finished = tracer.finishedSpans();
        // This really should be a non-blocking callback...
        String message1 = future1.get();
        // This really should be a non-blocking callback...
        String message2 = future2.get();
        assertThat(message1).isEqualTo("received my message 1");
        assertThat(message2).isEqualTo("received my message 2");
        assertThat(finished.size()).isEqualTo(3);
        assertThat(finished.get(0).context().traceId()).isEqualTo(finished.get(1).context().traceId());
        assertThat(getByTag(finished, Tags.SPAN_KIND, Tags.SPAN_KIND_CONSUMER)).hasSize(2);
        assertThat(getOneByTag(finished, Tags.SPAN_KIND, Tags.SPAN_KIND_PRODUCER)).isNotNull();
        assertThat(tracer.scopeManager().active()).isNull();
    }
}

Example 15 with Scope

use of io.opentracing.Scope in project opentracing-java by opentracing.

the class ActorPropagationTest method testActorTell.

@Test
public void testActorTell() {
    try (Actor actor = new Actor(tracer, phaser)) {
        phaser.register();
        try (Scope parent = tracer.buildSpan("actorTell").withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_PRODUCER).withTag(Tags.COMPONENT.getKey(), "example-actor").startActive(true)) {
            actor.tell("my message 1");
            actor.tell("my message 2");
        }
        // child tracer started
        phaser.arriveAndAwaitAdvance();
        // Parent should be reported
        assertThat(tracer.finishedSpans().size()).isEqualTo(1);
        // continue...
        phaser.arriveAndAwaitAdvance();
        // child tracer finished
        phaser.arriveAndAwaitAdvance();
        assertThat(tracer.finishedSpans().size()).isEqualTo(3);
        assertThat(getByTag(tracer.finishedSpans(), Tags.SPAN_KIND, Tags.SPAN_KIND_CONSUMER)).hasSize(2);
        // continue...
        phaser.arriveAndDeregister();
        List<MockSpan> finished = tracer.finishedSpans();
        assertThat(finished.size()).isEqualTo(3);
        assertThat(finished.get(0).context().traceId()).isEqualTo(finished.get(1).context().traceId());
        assertThat(getByTag(finished, Tags.SPAN_KIND, Tags.SPAN_KIND_CONSUMER)).hasSize(2);
        assertThat(getOneByTag(finished, Tags.SPAN_KIND, Tags.SPAN_KIND_PRODUCER)).isNotNull();
        assertThat(tracer.scopeManager().active()).isNull();
    }
}