private List<DruidCoordinatorHelper> makeIndexingServiceHelpers(
final AtomicReference<DatasourceWhitelist> whitelistRef) {
List<DruidCoordinatorHelper> helpers = Lists.newArrayList();
helpers.add(new DruidCoordinatorSegmentInfoLoader(DruidCoordinator.this));
if (config.isConvertSegments()) {
helpers.add(new DruidCoordinatorVersionConverter(indexingServiceClient, whitelistRef));
}
if (config.isMergeSegments()) {
helpers.add(new DruidCoordinatorSegmentMerger(indexingServiceClient, whitelistRef));
helpers.add(
new DruidCoordinatorHelper() {
@Override
public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params) {
CoordinatorStats stats = params.getCoordinatorStats();
log.info(
"Issued merge requests for %s segments",
stats.getGlobalStats().get("mergedCount").get());
params
.getEmitter()
.emit(
new ServiceMetricEvent.Builder()
.build(
"coordinator/merge/count",
stats.getGlobalStats().get("mergedCount")));
return params;
}
});
}
return ImmutableList.copyOf(helpers);
}
