Examples with GroupedEndResultTransformer org.apache.solr.search.grouping.endresulttransformer.GroupedEndResultTransformer used on opensource projects

Example 1 with GroupedEndResultTransformer

use of org.apache.solr.search.grouping.endresulttransformer.GroupedEndResultTransformer in project lucene-solr by apache.

the class QueryComponent method groupedFinishStage.

@SuppressWarnings("unchecked")
protected void groupedFinishStage(final ResponseBuilder rb) {
    // To have same response as non-distributed request.
    GroupingSpecification groupSpec = rb.getGroupingSpec();
    if (rb.mergedTopGroups.isEmpty()) {
        for (String field : groupSpec.getFields()) {
            rb.mergedTopGroups.put(field, new TopGroups(null, null, 0, 0, new GroupDocs[] {}, Float.NaN));
        }
        rb.resultIds = new HashMap<>();
    }
    EndResultTransformer.SolrDocumentSource solrDocumentSource = doc -> {
        ShardDoc solrDoc = (ShardDoc) doc;
        return rb.retrievedDocuments.get(solrDoc.id);
    };
    EndResultTransformer endResultTransformer;
    if (groupSpec.isMain()) {
        endResultTransformer = MAIN_END_RESULT_TRANSFORMER;
    } else if (Grouping.Format.grouped == groupSpec.getResponseFormat()) {
        endResultTransformer = new GroupedEndResultTransformer(rb.req.getSearcher());
    } else if (Grouping.Format.simple == groupSpec.getResponseFormat() && !groupSpec.isMain()) {
        endResultTransformer = SIMPLE_END_RESULT_TRANSFORMER;
    } else {
        return;
    }
    Map<String, Object> combinedMap = new LinkedHashMap<>();
    combinedMap.putAll(rb.mergedTopGroups);
    combinedMap.putAll(rb.mergedQueryCommandResults);
    endResultTransformer.transform(combinedMap, rb, solrDocumentSource);
}