How to use

setSpanLoggingRepresentation

method

in

com.nike.wingtips.Tracer

@Autowired
public WingtipsSpringBootConfiguration(WingtipsSpringBootProperties wingtipsProperties) {
  this.wingtipsProperties = wingtipsProperties;
  // Set the span logging representation if specified in the wingtips properties.
  if (wingtipsProperties.getSpanLoggingFormat() != null) {
    Tracer.getInstance().setSpanLoggingRepresentation(wingtipsProperties.getSpanLoggingFormat());
  }
}

private Span findCompletedSpanByCriteria(Predicate<Span> criteria) {
  Tracer.getInstance().setSpanLoggingRepresentation(Tracer.SpanLoggingRepresentation.KEY_VALUE);
  List<Span> matchingSpans = spanRecorder.completedSpans.stream().filter(criteria).collect(Collectors.toList());
  assertThat(matchingSpans)
    .withFailMessage(
      "Expected to find exactly 1 span matching the specified criteria - instead found: "
      + matchingSpans.size()
    )
    .hasSize(1);
  return matchingSpans.get(0);
}

@Test(expected = IllegalArgumentException.class)
public void setSpanLoggingRepresentation_blows_up_if_spanLoggingRepresentation_is_null() {
  // expect
  Tracer.getInstance().setSpanLoggingRepresentation(null);
}

@DataProvider(value = {
  "JSON",
  "KEY_VALUE"
}, splitBy = "\\|")
@Test
public void verify_span_serialization_methods(Tracer.SpanLoggingRepresentation serializationOption) {
  // given
  Span span = Span.generateRootSpanForNewTrace(UUID.randomUUID().toString(), SpanPurpose.LOCAL_ONLY).build();
  String expectedOutput;
  switch(serializationOption) {
    case JSON:
      expectedOutput = span.toJSON();
      break;
    case KEY_VALUE:
      expectedOutput = span.toKeyValueString();
      break;
    default:
      throw new IllegalArgumentException("Unhandled option: " + serializationOption);
  }
  Tracer.getInstance().setSpanLoggingRepresentation(serializationOption);
  // then
  assertThat(Tracer.getInstance().getSpanLoggingRepresentation()).isEqualTo(serializationOption);
  // and when
  String serializedString = Tracer.getInstance().serializeSpanToDesiredStringRepresentation(span);
  // then
  assertThat(serializedString).isEqualTo(expectedOutput);
}

private void resetTracer() {
  Tracer.getInstance().completeRequestSpan();
  Tracer.getInstance().setRootSpanSamplingStrategy(new SampleAllTheThingsStrategy());
  for (SpanLifecycleListener listener : new ArrayList<>(Tracer.getInstance().getSpanLifecycleListeners())) {
    Tracer.getInstance().removeSpanLifecycleListener(listener);
  }
  Tracer.getInstance().setSpanLoggingRepresentation(Tracer.SpanLoggingRepresentation.JSON);
}