Examples with StackToSpanLinkage com.splunk.opentelemetry.profiler.context.StackToSpanLinkage used on opensource projects

Example 1 with StackToSpanLinkage

use of com.splunk.opentelemetry.profiler.context.StackToSpanLinkage in project splunk-otel-java by signalfx.

the class LogDataCreatorTest method testCreate.

@Test
void testCreate() {
    Instant time = Instant.now();
    String stack = "the.stack";
    SpanContext spanContext = SpanContext.create("deadbeefdeadbeefdeadbeefdeadbeef", "0123012301230123", TraceFlags.getSampled(), TraceState.getDefault());
    Context context = Context.root().with(Span.wrap(spanContext));
    long threadId = 987L;
    String eventName = "GoodEventHere";
    EventPeriods periods = mock(EventPeriods.class);
    when(periods.getDuration(eventName)).thenReturn(Duration.ofMillis(606));
    SpanLinkage linkage = new SpanLinkage(spanContext, threadId);
    Resource resource = Resource.getDefault();
    Attributes attributes = Attributes.of(SOURCE_EVENT_NAME, eventName, SOURCE_EVENT_PERIOD, 606L, SOURCE_TYPE, "otel.profiling");
    LogData expected = LogDataBuilder.create(resource, INSTRUMENTATION_LIBRARY_INFO).setContext(context).setBody(stack).setEpoch(time).setAttributes(attributes).build();
    StackToSpanLinkage linkedSpan = new StackToSpanLinkage(time, "the.stack", eventName, linkage);
    LogDataCreator creator = new LogDataCreator(new LogDataCommonAttributes(periods), Resource.getDefault());
    LogData result = creator.apply(linkedSpan);
    assertEquals(expected, result);
}

Example 2 with StackToSpanLinkage

use of com.splunk.opentelemetry.profiler.context.StackToSpanLinkage in project splunk-otel-java by signalfx.

the class ThreadDumpProcessorTest method testFilterStacksWithoutSpans.

@Test
void testFilterStacksWithoutSpans() {
    SpanContextualizer contextualizer = new SpanContextualizer();
    sampleThreadsFromDump.forEach(it -> contextualizer.updateContext(threadContextStartEvent(it.threadId)));
    String threadDump = readDumpFromResource("thread-dump1.txt");
    List<StackToSpanLinkage> results = collectResults(contextualizer, threadDump, true);
    assertEquals(sampleThreadsFromDump.size(), results.size());
    sampleThreadsFromDump.forEach(sample -> assertThat(results).anyMatch(stack -> stack.getRawStack().contains(sample.threadName)));
}

Example 3 with StackToSpanLinkage

use of com.splunk.opentelemetry.profiler.context.StackToSpanLinkage in project splunk-otel-java by signalfx.

the class ThreadDumpProcessorTest method testProcessEvent.

@Test
void testProcessEvent() {
    SpanContextualizer contextualizer = new SpanContextualizer();
    long idOfThreadRunningTheSpan = 3L;
    SpanContext expectedContext = SpanContext.create(traceId, spanId, TraceFlags.fromByte(traceFlags), TraceState.getDefault());
    contextualizer.updateContext(threadContextStartEvent(idOfThreadRunningTheSpan));
    String threadDump = readDumpFromResource("thread-dump2.txt");
    List<StackToSpanLinkage> results = collectResults(contextualizer, threadDump, false);
    assertEquals(3, results.size());
    assertFalse(results.get(0).hasSpanInfo());
    assertTrue(results.get(0).getRawStack().contains("at java.lang.ref.Reference$ReferenceHandler"));
    assertTrue(results.get(1).hasSpanInfo());
    assertEquals(expectedContext, results.get(1).getSpanContext());
    assertEquals(idOfThreadRunningTheSpan, results.get(1).getSpanStartThread());
    assertTrue(results.get(1).getRawStack().contains("AwesomeThinger.overHereDoingSpanThings"));
    assertFalse(results.get(2).hasSpanInfo());
    assertTrue(results.get(2).getRawStack().contains("0x0000000625152778"));
}

Example 4 with StackToSpanLinkage

use of com.splunk.opentelemetry.profiler.context.StackToSpanLinkage in project splunk-otel-java by signalfx.

the class ThreadDumpProcessorTest method testFilterInternalStacks.

@Test
void testFilterInternalStacks() {
    SpanContextualizer contextualizer = new SpanContextualizer();
    String threadDump = readDumpFromResource("thread-dump1.txt");
    List<StackToSpanLinkage> results = collectResults(contextualizer, threadDump, false);
    assertEquals(28, results.size());
    Stream.of(StackTraceFilter.UNWANTED_PREFIXES).forEach(prefix -> {
        assertThat(results).noneMatch(stack -> stack.getRawStack().contains(prefix));
    });
}

Example 5 with StackToSpanLinkage

use of com.splunk.opentelemetry.profiler.context.StackToSpanLinkage in project splunk-otel-java by signalfx.

the class ThreadDumpProcessorBenchmark method buildOldThreadDumpProcessor.

private static com.splunk.opentelemetry.profiler.old.ThreadDumpProcessor buildOldThreadDumpProcessor() {
    SpanContextualizer contextualizer = new SpanContextualizer();
    Consumer<StackToSpanLinkage> processor = x -> {
    };
    Predicate<String> filter = new AgentInternalsFilter();
    return new com.splunk.opentelemetry.profiler.old.ThreadDumpProcessor(contextualizer, processor, filter);
}