How to use

writeSpans

method

in

zipkin.internal.JsonCodec

protected void sendSpans(List<zipkin.Span> spanList) {
  try {
    sendSpans(Codec.JSON.writeSpans(spanList));
  } catch (IOException e) {
    Set<String> affectedTraceIds = new HashSet<>(spanList.size());
    for (zipkin.Span span : spanList) {
      affectedTraceIds.add(String.valueOf(span.traceId));
    }
    logger.error("An error occurred attempting to post Zipkin spans to the Zipkin server. affected_trace_ids={}, exception_cause=\"{}\"",
           affectedTraceIds.toString(), e.toString());
  }
}

protected void sendSpans(List<zipkin.Span> spanList) {
  try {
    sendSpans(Codec.JSON.writeSpans(spanList));
  } catch (IOException e) {
    Set<String> affectedTraceIds = new HashSet<>(spanList.size());
    for (zipkin.Span span : spanList) {
      affectedTraceIds.add(String.valueOf(span.traceId));
    }
    logger.error("An error occurred attempting to post Zipkin spans to the Zipkin server. affected_trace_ids={}, exception_cause=\"{}\"",
           affectedTraceIds.toString(), e.toString());
  }
}

@Test
public void sendSpans_with_span_list_delegates_to_sendSpans_with_byte_array() throws IOException {
  // given
  List<zipkin.Span> zipkinSpans = new ArrayList<>();
  for (int i = 0; i < 10; i++) {
    zipkinSpans.add(zipkinSpan(random.nextLong(), UUID.randomUUID().toString()));
  }
  byte[] expectedBytesPayload = Codec.JSON.writeSpans(zipkinSpans);
  // when
  implSpy.sendSpans(zipkinSpans);
  // then
  verify(implSpy).sendSpans(expectedBytesPayload);
}

  sentSpans.add(zipkinSpan(random.nextLong(), UUID.randomUUID().toString()));
long expectedUncompressedPayloadSize = Codec.JSON.writeSpans(sentSpans).length;