How to use

hexToId

method

in

org.springframework.cloud.sleuth.Span

@Override
public Span joinTrace(RpcContext carrier) {
  Map<String, String> attachments = carrier.getAttachments();
  if (attachments.get(Span.TRACE_ID_NAME) == null) {
    // can't build a Span without trace id
    return null;
  }
  boolean skip = Span.SPAN_NOT_SAMPLED.equals(attachments.get(Span.SAMPLED_NAME));
  long traceId = Span
      .hexToId(attachments.get(Span.TRACE_ID_NAME));
  long spanId = attachments.get(Span.SPAN_ID_NAME) != null
      ? Span.hexToId(attachments.get(Span.SPAN_ID_NAME))
      : this.random.nextLong();
  return buildParentSpan(carrier, skip, traceId, spanId);
}

String spanId = header.containsKey(TraceMessageHeaders.SPAN_ID_NAME) ? String.valueOf(header.get(TraceMessageHeaders.SPAN_ID_NAME)) : traceId;
spanBuilder
    .traceIdHigh(traceId.length() == 32 ? Span.hexToId(traceId, 0) : 0)
    .traceId(Span.hexToId(traceId))
    .spanId(Span.hexToId(spanId));
String processId = header.containsKey(TraceMessageHeaders.PROCESS_ID_NAME) ? String.valueOf(header.get(TraceMessageHeaders.PROCESS_ID_NAME)) : null;
String spanName = header.containsKey(TraceMessageHeaders.SPAN_NAME_NAME) ? String.valueOf(header.get(TraceMessageHeaders.SPAN_NAME_NAME)) : null;
  spanBuilder.parent(Span.hexToId(parentId));

  private Span buildParentSpan(RpcContext carrier, boolean skip,
                 long traceId, long spanId) {
    Map<String, String> attachments = carrier.getAttachments();
    SpanBuilder span = Span.builder().traceId(traceId).spanId(spanId);
    String processId = attachments.get(Span.PROCESS_ID_NAME);
    String parentName = attachments.get(Span.SPAN_NAME_NAME);
    if (StringUtils.hasText(parentName)) {
      span.name(parentName);
    }
    if (StringUtils.hasText(processId)) {
      span.processId(processId);
    }
    if (attachments.get(Span.PARENT_ID_NAME) != null) {
      span.parent(Span
          .hexToId(attachments.get(Span.PARENT_ID_NAME)));
    }
    span.remote(true);
    if (skip) {
      span.exportable(false);
    }
    return span.build();
  }
}

if(request.getAttachments().get(TraceMessageHeaders.TRACE_ID_NAME)!=null &&
    !"".equals(request.getAttachments().get(TraceMessageHeaders.TRACE_ID_NAME))){
  spanBuilder.traceId(Span.hexToId(request.getAttachments().get(TraceMessageHeaders.TRACE_ID_NAME)));
  spanBuilder.spanId(Span.hexToId(request.getAttachments().get(TraceMessageHeaders.SPAN_ID_NAME)));
  spanBuilder.exportable(Span.SPAN_SAMPLED.equals(request.getAttachments().get(TraceMessageHeaders.SAMPLED_NAME)));
  spanBuilder.processId(request.getAttachments().get(TraceMessageHeaders.PROCESS_ID_NAME));
  spanBuilder.parent(Span.hexToId(request.getAttachments().get(TraceMessageHeaders.PARENT_ID_NAME)));
  spanBuilder.name(request.getAttachments().get(TraceMessageHeaders.SPAN_NAME_NAME));
  spanBuilder.remote(true);
}else if(request.getAttachments().get(Span.TRACE_ID_NAME)!=null &&
    !"".equals(request.getAttachments().get(Span.TRACE_ID_NAME))){
  spanBuilder.traceId(Span.hexToId(request.getAttachments().get(Span.TRACE_ID_NAME)));
  spanBuilder.spanId(Span.hexToId(request.getAttachments().get(Span.SPAN_ID_NAME)));
  spanBuilder.exportable(Span.SPAN_SAMPLED.equals(request.getAttachments().get(Span.SAMPLED_NAME)));
  spanBuilder.processId(request.getAttachments().get(Span.PROCESS_ID_NAME));
  if(request.getAttachments().get(Span.PARENT_ID_NAME)!=null){
    spanBuilder.parent(Span.hexToId(request.getAttachments().get(Span.PARENT_ID_NAME)));