epotyom commented on code in PR #12862:
URL: https://github.com/apache/lucene/pull/12862#discussion_r1420792687
##########
lucene/facet/src/java/org/apache/lucene/facet/MultiFacets.java:
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@@ -77,6 +80,39 @@ public Number getSpecificValue(String dim, String... path)
throws IOException {
return facets.getSpecificValue(dim, path);
}
+ @Override
+ public Number[] getBulkSpecificValues(FacetLabel[] facetLabels) throws
IOException {
+ if (facetLabels.length == 0) {
+ return new Number[0];
+ }
+ // Split facetLabels into chunks by the Facets they belog to
+ Map<Facets, IntArrayList> labelsPerFacet = new HashMap<>();
+ for (int i = 0; i < facetLabels.length; i++) {
+ String dim = facetLabels[i].components[0];
+ Facets facets = dimToFacets.get(dim);
+ if (facets == null) {
+ if (defaultFacets == null) {
+ throw new IllegalArgumentException("invalid dim \"" + dim + "\"");
+ }
+ facets = defaultFacets;
+ }
+ labelsPerFacet.computeIfAbsent(facets, f -> new IntArrayList()).add(i);
+ }
+ // Call getBulkSpecificValues for each chunk and reconcile results
+ Number[] result = new Number[facetLabels.length];
+ for (Map.Entry<Facets, IntArrayList> fl : labelsPerFacet.entrySet()) {
+ FacetLabel[] labelsForFacet = new FacetLabel[fl.getValue().size()];
+ for (IntCursor ordI : fl.getValue()) {
+ labelsForFacet[ordI.index] = facetLabels[ordI.value];
+ }
+ Number[] ords = fl.getKey().getBulkSpecificValues(labelsForFacet);
Review Comment:
Hmm, re-read your message. I don't think we can change `getSpecificValue`
behavior as users might not check for `null`. But we can choose to implement
`null` for the new method. I think it's more intuitive to use `null`, but It
could be a little weird that 2 sibling methods behave differently?
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