本文整理了Java中com.nike.wingtips.Span.getSpanPurpose()方法的一些代码示例，展示了Span.getSpanPurpose()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Span.getSpanPurpose()方法的具体详情如下：
包路径：com.nike.wingtips.Span
类名称：Span
方法名：getSpanPurpose

Span.getSpanPurpose介绍

暂无

代码示例

代码示例来源：origin: Nike-Inc/wingtips

@SuppressWarnings("WeakerAccess")
protected zipkin2.Span.Kind determineZipkinKind(Span wingtipsSpan) {
  SpanPurpose wtsp = wingtipsSpan.getSpanPurpose();
  // Clunky if checks necessary to avoid code coverage gaps with a switch statement
  //      due to unreachable default case. :(
  if (SpanPurpose.SERVER == wtsp) {
    return zipkin2.Span.Kind.SERVER;
  }
  else if (SpanPurpose.CLIENT == wtsp) {
    return zipkin2.Span.Kind.CLIENT;
  }
  else if (SpanPurpose.LOCAL_ONLY == wtsp || SpanPurpose.UNKNOWN == wtsp) {
    // No Zipkin Kind associated with these SpanPurposes.
    return null;
  }
  else {
    // This case should technically be impossible, but in case it happens we'll log a warning and default to
    //      no Zipkin kind.
    logger.warn("Unhandled SpanPurpose type: {}", String.valueOf(wtsp));
    return null;
  }
}

代码示例来源：origin: com.nike.wingtips/wingtips-zipkin2

@SuppressWarnings("WeakerAccess")
protected zipkin2.Span.Kind determineZipkinKind(Span wingtipsSpan) {
  SpanPurpose wtsp = wingtipsSpan.getSpanPurpose();
  // Clunky if checks necessary to avoid code coverage gaps with a switch statement
  //      due to unreachable default case. :(
  if (SpanPurpose.SERVER == wtsp) {
    return zipkin2.Span.Kind.SERVER;
  }
  else if (SpanPurpose.CLIENT == wtsp) {
    return zipkin2.Span.Kind.CLIENT;
  }
  else if (SpanPurpose.LOCAL_ONLY == wtsp || SpanPurpose.UNKNOWN == wtsp) {
    // No Zipkin Kind associated with these SpanPurposes.
    return null;
  }
  else {
    // This case should technically be impossible, but in case it happens we'll log a warning and default to
    //      no Zipkin kind.
    logger.warn("Unhandled SpanPurpose type: {}", String.valueOf(wtsp));
    return null;
  }
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void public_constructor_defaults_to_UNKNOWN_span_purpose_if_passed_null() {
  // when
  Span span = new Span(traceId, parentSpanId, spanId, spanName, true, userId, null, 42, null, null, null, null);
  // then
  assertThat(span.getSpanPurpose()).isEqualTo(SpanPurpose.UNKNOWN);
}

代码示例来源：origin: Nike-Inc/wingtips

private void verifySpanPurposeRelatedStuff(zipkin2.Span zipkinSpan, Span wingtipsSpan) {
  SpanPurpose spanPurpose = wingtipsSpan.getSpanPurpose();
  switch(spanPurpose) {
    case SERVER:
      assertThat(zipkinSpan.kind()).isEqualTo(zipkin2.Span.Kind.SERVER);
      break;
    case CLIENT:
      assertThat(zipkinSpan.kind()).isEqualTo(zipkin2.Span.Kind.CLIENT);
      break;
    case LOCAL_ONLY:
    case UNKNOWN:
      // intentional fall-through: local and unknown span purpose are treated the same way
      break;
    default:
      throw new IllegalStateException("Unhandled spanPurpose: " + spanPurpose.name());
  }
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromHttpServletRequestOrCreateRootSpan_returns_new_root_span_if_traceId_is_missing_from_headers() {
  // given: no trace ID in headers, but user ID exists
  given(request.getHeader(ALT_USER_ID_HEADER_KEY)).willReturn(altUserId);
  // when: creating Span object from HTTP request using fromHttpServletRequestOrCreateRootSpan
  long beforeCallNanos = System.nanoTime();
  Span newSpan = HttpSpanFactory.fromHttpServletRequestOrCreateRootSpan(request, USER_ID_HEADER_KEYS);
  long afterCallNanos = System.nanoTime();
  // then: ensure root span object is created even though there was no trace ID header, and the returned span contains the expected user ID
  assertThat(newSpan).isNotNull();
  assertThat(newSpan.getParentSpanId()).isNull();
  assertThat(newSpan.getUserId()).isEqualTo(altUserId);
  assertThat(newSpan.getSpanStartTimeNanos()).isBetween(beforeCallNanos, afterCallNanos);
  assertThat(newSpan.isCompleted()).isFalse();
  assertThat(newSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
}

代码示例来源：origin: Nike-Inc/wingtips

protected zipkin.Span.Builder createNewZipkinSpanBuilderWithSpanPurposeAnnotations(
  Span wingtipsSpan, long startEpochMicros, long durationMicros, Endpoint zipkinEndpoint, String localComponentNamespace
) {
  zipkin.Span.Builder zsb = zipkin.Span.builder();
  switch(wingtipsSpan.getSpanPurpose()) {
    case SERVER:
      zsb.addAnnotation(Annotation.create(startEpochMicros, Constants.SERVER_RECV, zipkinEndpoint))
        .addAnnotation(Annotation.create(startEpochMicros + durationMicros, Constants.SERVER_SEND, zipkinEndpoint));
      break;
    case CLIENT:
      zsb.addAnnotation(Annotation.create(startEpochMicros, Constants.CLIENT_SEND, zipkinEndpoint))
        .addAnnotation(Annotation.create(startEpochMicros + durationMicros, Constants.CLIENT_RECV, zipkinEndpoint));
      break;
    case LOCAL_ONLY:
    case UNKNOWN:       // intentional fall-through: local and unknown span purpose are treated the same way
      zsb.addBinaryAnnotation(BinaryAnnotation.create(Constants.LOCAL_COMPONENT, localComponentNamespace, zipkinEndpoint));
      break;
    default:
      logger.warn("Unhandled SpanPurpose type: " + wingtipsSpan.getSpanPurpose().name());
  }
  return zsb;
}

代码示例来源：origin: com.nike.wingtips/wingtips-zipkin

protected zipkin.Span.Builder createNewZipkinSpanBuilderWithSpanPurposeAnnotations(
  Span wingtipsSpan, long startEpochMicros, long durationMicros, Endpoint zipkinEndpoint, String localComponentNamespace
) {
  zipkin.Span.Builder zsb = zipkin.Span.builder();
  switch(wingtipsSpan.getSpanPurpose()) {
    case SERVER:
      zsb.addAnnotation(Annotation.create(startEpochMicros, Constants.SERVER_RECV, zipkinEndpoint))
        .addAnnotation(Annotation.create(startEpochMicros + durationMicros, Constants.SERVER_SEND, zipkinEndpoint));
      break;
    case CLIENT:
      zsb.addAnnotation(Annotation.create(startEpochMicros, Constants.CLIENT_SEND, zipkinEndpoint))
        .addAnnotation(Annotation.create(startEpochMicros + durationMicros, Constants.CLIENT_RECV, zipkinEndpoint));
      break;
    case LOCAL_ONLY:
    case UNKNOWN:       // intentional fall-through: local and unknown span purpose are treated the same way
      zsb.addBinaryAnnotation(BinaryAnnotation.create(Constants.LOCAL_COMPONENT, localComponentNamespace, zipkinEndpoint));
      break;
    default:
      logger.warn("Unhandled SpanPurpose type: " + wingtipsSpan.getSpanPurpose().name());
  }
  return zsb;
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void public_constructor_works_as_expected_for_completed_span() {
  // when
  Span span = new Span(
    traceId, parentSpanId, spanId, spanName, sampleableForFullyCompleteSpan, userId,
    spanPurposeForFullyCompletedSpan, startTimeEpochMicrosForFullyCompleteSpan,
    startTimeNanosForFullyCompleteSpan, durationNanosForFullyCompletedSpan, tags, annotations
  );
  // then
  assertThat(span.getTraceId()).isEqualTo(traceId);
  assertThat(span.getParentSpanId()).isEqualTo(parentSpanId);
  assertThat(span.getSpanId()).isEqualTo(spanId);
  assertThat(span.getSpanName()).isEqualTo(spanName);
  assertThat(span.isSampleable()).isEqualTo(sampleableForFullyCompleteSpan);
  assertThat(span.getUserId()).isEqualTo(userId);
  assertThat(span.getSpanStartTimeEpochMicros()).isEqualTo(startTimeEpochMicrosForFullyCompleteSpan);
  assertThat(span.getSpanStartTimeNanos()).isEqualTo(startTimeNanosForFullyCompleteSpan);
  assertThat(span.getSpanPurpose()).isEqualTo(spanPurposeForFullyCompletedSpan);
  assertThat(span.isCompleted()).isTrue();
  assertThat(span.getDurationNanos()).isEqualTo(durationNanosForFullyCompletedSpan);
  assertThat(span.getTags()).isEqualTo(tags);
  assertThat(span.getTimestampedAnnotations()).isEqualTo(annotations);
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void public_constructor_works_as_expected_for_incomplete_span() {
  // when
  Span span = new Span(
    traceId, parentSpanId, spanId, spanName, sampleableForFullyCompleteSpan, userId,
    spanPurposeForFullyCompletedSpan, startTimeEpochMicrosForFullyCompleteSpan,
    startTimeNanosForFullyCompleteSpan, null, tags, annotations
  );
  // then
  assertThat(span.getTraceId()).isEqualTo(traceId);
  assertThat(span.getParentSpanId()).isEqualTo(parentSpanId);
  assertThat(span.getSpanId()).isEqualTo(spanId);
  assertThat(span.getSpanName()).isEqualTo(spanName);
  assertThat(span.isSampleable()).isEqualTo(sampleableForFullyCompleteSpan);
  assertThat(span.getUserId()).isEqualTo(userId);
  assertThat(span.getSpanStartTimeEpochMicros()).isEqualTo(startTimeEpochMicrosForFullyCompleteSpan);
  assertThat(span.getSpanStartTimeNanos()).isEqualTo(startTimeNanosForFullyCompleteSpan);
  assertThat(span.getSpanPurpose()).isEqualTo(spanPurposeForFullyCompletedSpan);
  assertThat(span.isCompleted()).isFalse();
  assertThat(span.getDurationNanos()).isNull();
  assertThat(span.getTags()).isEqualTo(tags);
  assertThat(span.getTimestampedAnnotations()).isEqualTo(annotations);
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromHttpServletRequestOrCreateRootSpan_pulls_from_headers_if_available() {
  // given: a set of standard Span header values
  given(request.getHeader(TraceHeaders.TRACE_ID)).willReturn(sampleTraceID);
  given(request.getHeader(TraceHeaders.TRACE_SAMPLED)).willReturn(Boolean.TRUE.toString());
  given(request.getHeader(TraceHeaders.SPAN_ID)).willReturn(sampleSpanID);
  given(request.getHeader(TraceHeaders.PARENT_SPAN_ID)).willReturn(sampleParentSpanID);
  given(request.getHeader(USER_ID_HEADER_KEY)).willReturn(userId);
  // when: creating Span object from HTTP request using fromHttpServletRequestOrCreateRootSpan
  long beforeCallNanos = System.nanoTime();
  Span goodSpan = HttpSpanFactory.fromHttpServletRequestOrCreateRootSpan(request, USER_ID_HEADER_KEYS);
  long afterCallNanos = System.nanoTime();
  // then: ensure Span object gets identical values from corresponding headers
  assertThat(goodSpan.getTraceId()).isEqualTo(sampleTraceID);
  assertThat(goodSpan.isSampleable()).isTrue();
  assertThat(goodSpan.getSpanId()).isEqualTo(sampleSpanID);
  assertThat(goodSpan.getParentSpanId()).isEqualTo(sampleParentSpanID);
  assertThat(goodSpan.getUserId()).isEqualTo(userId);
  assertThat(goodSpan.getSpanStartTimeNanos()).isBetween(beforeCallNanos, afterCallNanos);
  assertThat(goodSpan.isCompleted()).isFalse();
  assertThat(goodSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void equals_returns_false_and_hashCode_different_if_spanPurpose_is_different() {
  // given
  Span fullSpan1 = createFilledOutSpan(true);
  Span fullSpan2 = createFilledOutSpan(true);
  List<SpanPurpose> badDataList = Arrays.asList(SpanPurpose.CLIENT, SpanPurpose.UNKNOWN, null);
  for (SpanPurpose badData : badDataList) {
    assertThat(fullSpan1.getSpanPurpose()).isNotEqualTo(badData);
    Whitebox.setInternalState(fullSpan2, "spanPurpose", badData);
    // expect
    assertThat(fullSpan1.equals(fullSpan2)).isFalse();
    assertThat(fullSpan2.equals(fullSpan1)).isFalse();
    assertThat(fullSpan1.hashCode()).isNotEqualTo(fullSpan2.hashCode());
  }
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromHttpServletRequest_creates_span_with_all_values_if_all_values_available_from_request_headers() {
  // given: a set of standard Span header values
  given(request.getHeader(TraceHeaders.TRACE_ID)).willReturn(sampleTraceID);
  given(request.getHeader(TraceHeaders.TRACE_SAMPLED)).willReturn(Boolean.FALSE.toString());
  given(request.getHeader(TraceHeaders.SPAN_ID)).willReturn(sampleSpanID);
  given(request.getHeader(TraceHeaders.PARENT_SPAN_ID)).willReturn(sampleParentSpanID);
  given(request.getHeader(USER_ID_HEADER_KEY)).willReturn(userId);
  // when: creating Span object from HTTP request
  long beforeCallNanos = System.nanoTime();
  Span goodSpan = HttpSpanFactory.fromHttpServletRequest(request, USER_ID_HEADER_KEYS);
  long afterCallNanos = System.nanoTime();
  // then: ensure Span object gets identical values from corresponding headers
  assertThat(goodSpan.getTraceId()).isEqualTo(sampleTraceID);
  assertThat(goodSpan.isSampleable()).isFalse();
  assertThat(goodSpan.getSpanId()).isEqualTo(sampleSpanID);
  assertThat(goodSpan.getParentSpanId()).isEqualTo(sampleParentSpanID);
  assertThat(goodSpan.getUserId()).isEqualTo(userId);
  assertThat(goodSpan.getSpanStartTimeNanos()).isBetween(beforeCallNanos, afterCallNanos);
  assertThat(goodSpan.isCompleted()).isFalse();
  assertThat(goodSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromHttpServletRequest_pulls_from_alt_user_id_if_specified_in_header_and_primary_is_missing() {
  // given: a set of standard Span header values with the alt user ID header specified instead of the primary
  given(request.getHeader(TraceHeaders.TRACE_ID)).willReturn(sampleTraceID);
  given(request.getHeader(TraceHeaders.TRACE_SAMPLED)).willReturn(Boolean.TRUE.toString());
  given(request.getHeader(TraceHeaders.SPAN_ID)).willReturn(sampleSpanID);
  given(request.getHeader(TraceHeaders.PARENT_SPAN_ID)).willReturn(sampleParentSpanID);
  given(request.getHeader(ALT_USER_ID_HEADER_KEY)).willReturn(altUserId);
  // when: creating Span object from HTTP request
  long beforeCallNanos = System.nanoTime();
  Span goodSpan = HttpSpanFactory.fromHttpServletRequest(request, USER_ID_HEADER_KEYS);
  long afterCallNanos = System.nanoTime();
  // then: ensure Span object gets identical values from corresponding headers
  assertThat(goodSpan.getTraceId()).isEqualTo(sampleTraceID);
  assertThat(goodSpan.isSampleable()).isTrue();
  assertThat(goodSpan.getSpanId()).isEqualTo(sampleSpanID);
  assertThat(goodSpan.getParentSpanId()).isEqualTo(sampleParentSpanID);
  assertThat(goodSpan.getUserId()).isEqualTo(altUserId);
  assertThat(goodSpan.getSpanStartTimeNanos()).isBetween(beforeCallNanos, afterCallNanos);
  assertThat(goodSpan.isCompleted()).isFalse();
  assertThat(goodSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromHttpServletRequest_creates_span_with_all_values_minus_user_id_if_user_id_list_is_not_passed_in() {
  // given: a set of standard Span header values
  given(request.getHeader(TraceHeaders.TRACE_ID)).willReturn(sampleTraceID);
  given(request.getHeader(TraceHeaders.TRACE_SAMPLED)).willReturn(Boolean.FALSE.toString());
  given(request.getHeader(TraceHeaders.SPAN_ID)).willReturn(sampleSpanID);
  given(request.getHeader(TraceHeaders.PARENT_SPAN_ID)).willReturn(sampleParentSpanID);
  given(request.getHeader(USER_ID_HEADER_KEY)).willReturn(userId);
  // when: creating Span object from HTTP request
  long beforeCallNanos = System.nanoTime();
  Span goodSpan = HttpSpanFactory.fromHttpServletRequest(request, null);
  long afterCallNanos = System.nanoTime();
  // then: ensure Span object gets identical values from corresponding headers
  assertThat(goodSpan.getTraceId()).isEqualTo(sampleTraceID);
  assertThat(goodSpan.isSampleable()).isFalse();
  assertThat(goodSpan.getSpanId()).isEqualTo(sampleSpanID);
  assertThat(goodSpan.getParentSpanId()).isEqualTo(sampleParentSpanID);
  assertThat(goodSpan.getUserId()).isNull();
  assertThat(goodSpan.getSpanStartTimeNanos()).isBetween(beforeCallNanos, afterCallNanos);
  assertThat(goodSpan.isCompleted()).isFalse();
  assertThat(goodSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
}

代码示例来源：origin: Nike-Inc/wingtips

public static void verifySpanDeepEquals(
  Span spanToVerify, Span expectedSpan, boolean allowStartTimeNanosFudgeFactor
) {
  assertThat(spanToVerify.getSpanStartTimeEpochMicros()).isEqualTo(expectedSpan.getSpanStartTimeEpochMicros());
  if (allowStartTimeNanosFudgeFactor) {
    assertThat(spanToVerify.getSpanStartTimeNanos())
      .isCloseTo(expectedSpan.getSpanStartTimeNanos(), Offset.offset(TimeUnit.MILLISECONDS.toNanos(1)));
  }
  else {
    assertThat(spanToVerify.getSpanStartTimeNanos()).isEqualTo(expectedSpan.getSpanStartTimeNanos());
  }
  assertThat(spanToVerify.isCompleted()).isEqualTo(expectedSpan.isCompleted());
  assertThat(spanToVerify.getTraceId()).isEqualTo(expectedSpan.getTraceId());
  assertThat(spanToVerify.getSpanId()).isEqualTo(expectedSpan.getSpanId());
  assertThat(spanToVerify.getParentSpanId()).isEqualTo(expectedSpan.getParentSpanId());
  assertThat(spanToVerify.getSpanName()).isEqualTo(expectedSpan.getSpanName());
  assertThat(spanToVerify.isSampleable()).isEqualTo(expectedSpan.isSampleable());
  assertThat(spanToVerify.getUserId()).isEqualTo(expectedSpan.getUserId());
  assertThat(spanToVerify.getDurationNanos()).isEqualTo(expectedSpan.getDurationNanos());
  assertThat(spanToVerify.getSpanPurpose()).isEqualTo(expectedSpan.getSpanPurpose());
  assertThat(spanToVerify.getTags()).isEqualTo(expectedSpan.getTags());
  assertThat(spanToVerify.getTimestampedAnnotations()).isEqualTo(expectedSpan.getTimestampedAnnotations());
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromRequestWithHeaders_generates_span_from_headers_in_request_for_all_user_id_header_keys() {
  // Verify more than 1 distinct user ID header key.
  assertThat(new HashSet<>(USER_ID_HEADER_KEYS).size()).isGreaterThan(1);
  for (String userIdHeaderKey : USER_ID_HEADER_KEYS) {
    // given: a set of standard span header values for the header key
    String userIdValue = UUID.randomUUID().toString();
    RequestWithHeaders request = mock(RequestWithHeaders.class);
    given(request.getHeader(TraceHeaders.TRACE_ID)).willReturn(sampleTraceID);
    given(request.getHeader(TraceHeaders.TRACE_SAMPLED)).willReturn(Boolean.TRUE.toString());
    given(request.getHeader(TraceHeaders.SPAN_ID)).willReturn(sampleSpanID);
    given(request.getHeader(TraceHeaders.PARENT_SPAN_ID)).willReturn(sampleParentSpanID);
    given(request.getHeader(userIdHeaderKey)).willReturn(userIdValue);
    // when: creating span object from HTTP request
    Span goodSpan = HttpRequestTracingUtils.fromRequestWithHeaders(request, USER_ID_HEADER_KEYS);
    // then: ensure span object gets identical values from corresponding headers, and sets the span purpose to SERVER
    assertThat(goodSpan.getTraceId()).isEqualTo(sampleTraceID);
    assertThat(goodSpan.isSampleable()).isTrue();
    assertThat(goodSpan.getSpanId()).isEqualTo(sampleSpanID);
    assertThat(goodSpan.getParentSpanId()).isEqualTo(sampleParentSpanID);
    assertThat(goodSpan.getUserId()).isEqualTo(userIdValue);
    assertThat(goodSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
  }
}

代码示例来源：origin: Nike-Inc/wingtips

@Test
public void fromRequestWithHeaders_generates_span_from_headers_in_request() {
  // given: a set of standard span header values
  given(request.getHeader(TraceHeaders.TRACE_ID)).willReturn(sampleTraceID);
  given(request.getHeader(TraceHeaders.TRACE_SAMPLED)).willReturn(Boolean.TRUE.toString());
  given(request.getHeader(TraceHeaders.SPAN_ID)).willReturn(sampleSpanID);
  given(request.getHeader(TraceHeaders.PARENT_SPAN_ID)).willReturn(sampleParentSpanID);
  given(request.getHeader(USER_ID_HEADER_KEY)).willReturn(userId);
  // when: creating span object from HTTP request
  Span goodSpan = HttpRequestTracingUtils.fromRequestWithHeaders(request, USER_ID_HEADER_KEYS);
  // then: ensure span object gets identical values from corresponding headers, and the span purpose is set to SERVER
  assertThat(goodSpan.getTraceId()).isEqualTo(sampleTraceID);
  assertThat(goodSpan.isSampleable()).isTrue();
  assertThat(goodSpan.getSpanId()).isEqualTo(sampleSpanID);
  assertThat(goodSpan.getParentSpanId()).isEqualTo(sampleParentSpanID);
  assertThat(goodSpan.getUserId()).isEqualTo(userId);
  assertThat(goodSpan.getSpanPurpose()).isEqualTo(SpanPurpose.SERVER);
}

代码示例来源：origin: Nike-Inc/wingtips

@DataProvider(value = {
  "SERVER",
  "CLIENT",
  "LOCAL_ONLY",
  "UNKNOWN"
}, splitBy = "\\|")
@Test
public void newBuilder_with_copy_arg_returns_exact_copy(SpanPurpose spanPurpose) {
  // given
  Span origSpan = createFilledOutSpan(true);
  Whitebox.setInternalState(origSpan, "spanPurpose", spanPurpose);
  assertThat(origSpan.getSpanPurpose()).isEqualTo(spanPurpose);
  // when
  Span copySpan = Span.newBuilder(origSpan).build();
  // then
  verifySpanDeepEquals(copySpan, origSpan, false);
}

代码示例来源：origin: Nike-Inc/wingtips

@UseDataProvider("tagAndAnnotationScenarioDataProvider")
@Test
public void convertSpanToJSON_should_function_properly_when_there_are_no_null_values(
  TagAndAnnotationScenario scenario
) throws IOException {
  // given: valid span without any null values, span completed (so that end time is not null), and JSON string
  //      from SpanParser.convertSpanToJSON()
  Span validSpan = createFilledOutSpan(true, scenario.tags, scenario.annotations);
  assertThat(validSpan.getTraceId()).isNotEmpty();
  assertThat(validSpan.getUserId()).isNotEmpty();
  assertThat(validSpan.getParentSpanId()).isNotEmpty();
  assertThat(validSpan.getSpanName()).isNotEmpty();
  assertThat(validSpan.getSpanId()).isNotEmpty();
  assertThat(validSpan.getDurationNanos()).isNotNull();
  assertThat(validSpan.isCompleted()).isTrue();
  assertThat(validSpan.getSpanPurpose()).isNotNull();
  assertThat(validSpan.getTags()).isEqualTo(scenario.tags);
  assertThat(validSpan.getTimestampedAnnotations()).isEqualTo(scenario.annotations);
  String json = SpanParser.convertSpanToJSON(validSpan);
  
  // when: jackson is used to deserialize that JSON
  Map<String, Object> spanValuesFromJackson = objectMapper.readValue(json, new TypeReference<Map<String, Object>>() {});
  // then: the original span context and jackson's span context values should be exactly the same
  verifySpanEqualsDeserializedValues(validSpan, spanValuesFromJackson);
}

代码示例来源：origin: Nike-Inc/wingtips

@UseDataProvider("tagAndAnnotationScenarioDataProvider")
@Test
public void fromJson_should_function_properly_when_there_are_no_null_values(TagAndAnnotationScenario scenario) {
  // given: valid span without any null values, completed (so that end time is not null) and JSON string
  //      from SpanParser.convertSpanToJSON()
  Span validSpan = createFilledOutSpan(true, scenario.tags, scenario.annotations);
  assertThat(validSpan).isNotNull();
  assertThat(validSpan.getTraceId()).isNotNull();
  assertThat(validSpan.getUserId()).isNotNull();
  assertThat(validSpan.getParentSpanId()).isNotNull();
  assertThat(validSpan.getSpanName()).isNotNull();
  assertThat(validSpan.getSpanId()).isNotNull();
  assertThat(validSpan.getDurationNanos()).isNotNull();
  assertThat(validSpan.isCompleted()).isTrue();
  assertThat(validSpan.getSpanPurpose()).isNotNull();
  assertThat(validSpan.getTags()).isEqualTo(scenario.tags);
  assertThat(validSpan.getTimestampedAnnotations()).isEqualTo(scenario.annotations);
  String json = SpanParser.convertSpanToJSON(validSpan);
  // when: fromJson is called
  Span spanFromJson = SpanParser.fromJSON(json);
  // then: the original span and the fromJson() span values should be exactly the same
  verifySpanDeepEquals(spanFromJson, validSpan, true);
}