How to use

readSpan

method

in

zipkin.internal.JsonCodec

 @Override
 public List<Span> apply(SearchResponse response) {
  if (response.getHits().totalHits() == 0) {
   return null;
  }
  ImmutableList.Builder<Span> trace = ImmutableList.builder();
  for (SearchHit hit : response.getHits()) {
   trace.add(Codec.JSON.readSpan(hit.getSourceRef().toBytes()));
  }
  return trace.build();
 }
});