Method MetricsToJSON

be/src/kudu/util/trace.cc:203–235

}

void Trace::MetricsToJSON(JsonWriter* jw) const {
  // Convert into a map with 'std::string' keys instead of 'const char*'
  // keys, so that the results are in a consistent (sorted) order.
  std::map<string, int64_t> counters;
  for (const auto& entry : metrics_.Get()) {
    counters[entry.first] = entry.second;
  }

  jw->StartObject();
  for (const auto& e : counters) {
    jw->String(e.first);
    jw->Int64(e.second);
  }
  vector<pair<StringPiece, scoped_refptr<Trace>>> child_traces;
  {
    std::lock_guard<simple_spinlock> l(lock_);
    child_traces = child_traces_;
  }

  if (!child_traces.empty()) {
    jw->String("child_traces");
    jw->StartArray();

    for (const auto& e : child_traces) {
      jw->StartArray();
      jw->String(e.first.data(), e.first.size());
      e.second->MetricsToJSON(jw);
      jw->EndArray();
    }
    jw->EndArray();
  }
  jw->EndObject();
}

void Trace::DumpCurrentTrace() {
  Trace* t = CurrentTrace();