@Override
public ServiceMetricEvent.Builder makeMetricBuilder(TopNQuery query) {
return DruidMetrics.makePartialQueryTimeMetric(query)
.setDimension("threshold", String.valueOf(query.getThreshold()))
.setDimension("dimension", query.getDimensionSpec().getDimension())
.setDimension("numMetrics", String.valueOf(query.getAggregatorSpecs().size()))
.setDimension(
"numComplexMetrics",
String.valueOf(DruidMetrics.findNumComplexAggs(query.getAggregatorSpecs())));
}
public static TopNResultBuilder makeResultBuilder(TopNParams params, TopNQuery query) {
final Comparator comparator =
query
.getTopNMetricSpec()
.getComparator(query.getAggregatorSpecs(), query.getPostAggregatorSpecs());
return query
.getTopNMetricSpec()
.getResultBuilder(
params.getCursor().getTime(),
query.getDimensionSpec(),
query.getThreshold(),
comparator,
query.getAggregatorSpecs(),
query.getPostAggregatorSpecs());
}
private static List<PostAggregator> prunePostAggregators(TopNQuery query) {
return AggregatorUtil.pruneDependentPostAgg(
query.getPostAggregatorSpecs(),
query.getTopNMetricSpec().getMetricName(query.getDimensionSpec()));
}
