rseitz commented on code in PR #1154:
URL: https://github.com/apache/solr/pull/1154#discussion_r1016977516
##########
solr/core/src/java/org/apache/solr/handler/component/QueryElevationComponent.java:
##########
@@ -553,6 +560,82 @@ private void setQuery(ResponseBuilder rb, Elevation
elevation) {
}
}
+ /**
+ * Updates any filters that have been tagged for exclusion. Filters can be
tagged for exclusion
+ * via the syntax fq={!tag=t1}field1:value1&elevate.excludeTags=t1 This
method modifies each
+ * "excluded" filter so that it becomes a boolean OR of the original filter
with an "include
+ * query" that matches the elevated documents by their IDs. To be clear, the
"excluded" filters
+ * are not ignored entirely, but rather broadened so that the elevated
documents are allowed
+ * through.
+ */
+ private void setFilters(ResponseBuilder rb, Elevation elevation) {
+ SolrParams params = rb.req.getParams();
+
+ String tagStr = params.get(QueryElevationParams.ELEVATE_EXCLUDE_TAGS);
+ if (StringUtils.isEmpty(tagStr)) {
+ // the parameter that specifies tags for exclusion was not provided or
had no value
+ return;
+ }
+
+ List<String> excludeTags = StrUtils.splitSmart(tagStr, ',');
+ excludeTags.removeIf(s -> StringUtils.isBlank(s));
+ if (excludeTags.isEmpty()) {
+ // the parameter that specifies tags for exclusion was provided but the
tag names were blank
+ return;
+ }
+
+ List<Query> filters = rb.getFilters();
+ if (filters == null || filters.isEmpty()) {
+ // no filters were provided
+ return;
+ }
+
+ Map<?, ?> tagMap = (Map<?, ?>) rb.req.getContext().get("tags");
+ if (tagMap == null) {
+ // no filters were tagged
+ return;
+ }
+
+ // TODO: this code is copied from FacetProcessor#handleFilterExclusions()
+ // duplication could be avoided by placing this code in a common utility
method, perhaps in
+ // QueryUtils
Review Comment:
OK, I've done the deed. Agree, QueryUtils feels maybe a little better than
RB given the presence of parseFilterQueries there. Thx again for the feedback
and let me know how it looks.
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