コード例 #1
0
 private static void printStatistic(
     GraalTruffleRuntime rt, String label, IntSummaryStatistics value) {
   rt.log(
       String.format(
           "  %-50s: count=%4d, sum=%8d, min=%8d, average=%12.2f, max=%8d ",
           label,
           value.getCount(),
           value.getSum(),
           value.getMin(),
           value.getAverage(),
           value.getMax()));
 }
  /** {@inheritDoc} */
  @Override
  public RequestAggregationValues aggregate(RequestCollector requests) {

    IntSummaryStatistics stats =
        requests
            .getReqTimestamps()
            .stream()
            .collect(
                Collectors.groupingBy(
                    timestamp -> DateUtils.round(new Date(timestamp), timestampAggregation),
                    Collectors.counting()))
            .values()
            .stream()
            .mapToInt(p -> toInt(p))
            .summaryStatistics();

    return new RequestAggregationValuesImpl(
        stats.getMin(), stats.getMax(), stats.getAverage(), stats.getSum(), stats.getCount());
  }