void ServiceData::addStatExports()

in fb303/ServiceData.cpp [113:157]
45 lines of code
10 McCabe index (conditional complexity)

void ServiceData::addStatExports(
    StringPiece key,
    StringPiece stats,
    int64_t bucketSize,
    int64_t min,
    int64_t max,
    const ExportedStat* statPrototype) {
  if (histMap_.contains(key)) {
    return; // already exists
  }
  bool addedHist = false;
  vector<string> statsSplit;
  folly::split(",", stats, statsSplit);
  for (const string& stat : statsSplit) {
    if (stat == "AVG") {
      statsMap_.exportStat(key, AVG, statPrototype);
    } else if (stat == "RATE") {
      statsMap_.exportStat(key, RATE, statPrototype);
    } else if (stat == "SUM") {
      statsMap_.exportStat(key, SUM, statPrototype);
    } else if (stat == "COUNT") {
      statsMap_.exportStat(key, COUNT, statPrototype);
    } else { // No match on stat type - assume it's a histogram percentile
      if (!addedHist) {
        if (bucketSize <= 0) {
          throw std::runtime_error(folly::to<string>(
              "bucketSize for ",
              key,
              " must be greater than zero (",
              bucketSize,
              ")"));
        }
        ExportedHistogram hist(
            bucketSize,
            min,
            max,
            statPrototype != nullptr ? *statPrototype
                                     : histMap_.getDefaultStat());
        histMap_.addHistogram(key, &hist);
        addedHist = true;
      }
      exportHistogramPercentile(key, folly::to<int32_t>(stat));
    }
  }
}