How to use

durations

method

in

com.yahoo.bard.webservice.logging.RequestLog

/**
 * Get the aggregate durations for this request.
 *
 * @return A map of phase to duration (ns)
 */
public static Map<String, Long> getDurations() {
  RequestLog log = RLOG.get();
  return log.durations();
}

/**
 * Adds the durations in milliseconds of all the recorded timed phases to a map.
 *
 * @return the map containing all the recorded times per phase in milliseconds
 */
private Map<String, Float> aggregateDurations() {
  Map<String, Long> durations = durations();
  OptionalLong max = durations.entrySet()
      .stream()
      .filter(e -> e.getKey().contains(DRUID_QUERY_TIMER))
      .mapToLong(Map.Entry::getValue)
      .peek(v -> REGISTRY.timer(DRUID_QUERY_ALL_TIMER).update(v, TimeUnit.NANOSECONDS))
      .max();
  if (max.isPresent()) {
    REGISTRY.timer(DRUID_QUERY_MAX_TIMER).update(max.getAsLong(), TimeUnit.NANOSECONDS);
    durations.put(DRUID_QUERY_MAX_TIMER, max.getAsLong());
  }
  return durations.entrySet()
      .stream()
      .collect(Collectors.toMap(Map.Entry::getKey, e -> (float) e.getValue() / MS_PER_NS));
}