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Example 1 with LongRangeFacetCounts

use of org.apache.lucene.facet.range.LongRangeFacetCounts in project lucene-solr by apache.

the class RangeFacetsExample method search.

/** User runs a query and counts facets. */
public FacetResult search() throws IOException {
    // Aggregates the facet counts
    FacetsCollector fc = new FacetsCollector();
    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query:
    FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);
    Facets facets = new LongRangeFacetCounts("timestamp", fc, PAST_HOUR, PAST_SIX_HOURS, PAST_DAY);
    return facets.getTopChildren(10, "timestamp");
}
Also used : Facets(org.apache.lucene.facet.Facets) LongRangeFacetCounts(org.apache.lucene.facet.range.LongRangeFacetCounts) MatchAllDocsQuery(org.apache.lucene.search.MatchAllDocsQuery) FacetsCollector(org.apache.lucene.facet.FacetsCollector)

Example 2 with LongRangeFacetCounts

use of org.apache.lucene.facet.range.LongRangeFacetCounts in project lucene-solr by apache.

the class RangeFacetsExample method drillSideways.

/** User drills down on the specified range, and also computes drill sideways counts. */
public DrillSideways.DrillSidewaysResult drillSideways(LongRange range) throws IOException {
    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(getConfig());
    q.add("timestamp", LongPoint.newRangeQuery("timestamp", range.min, range.max));
    // DrillSideways only handles taxonomy and sorted set drill facets by default; to do range facets we must subclass and override the
    // buildFacetsResult method.
    DrillSideways.DrillSidewaysResult result = new DrillSideways(searcher, getConfig(), null, null) {

        @Override
        protected Facets buildFacetsResult(FacetsCollector drillDowns, FacetsCollector[] drillSideways, String[] drillSidewaysDims) throws IOException {
            // If we had other dims we would also compute their drill-down or drill-sideways facets here:
            assert drillSidewaysDims[0].equals("timestamp");
            return new LongRangeFacetCounts("timestamp", drillSideways[0], PAST_HOUR, PAST_SIX_HOURS, PAST_DAY);
        }
    }.search(q, 10);
    return result;
}
Also used : Facets(org.apache.lucene.facet.Facets) LongRangeFacetCounts(org.apache.lucene.facet.range.LongRangeFacetCounts) DrillDownQuery(org.apache.lucene.facet.DrillDownQuery) DrillSideways(org.apache.lucene.facet.DrillSideways) IOException(java.io.IOException) FacetsCollector(org.apache.lucene.facet.FacetsCollector)

Aggregations

Facets (org.apache.lucene.facet.Facets)2 FacetsCollector (org.apache.lucene.facet.FacetsCollector)2 LongRangeFacetCounts (org.apache.lucene.facet.range.LongRangeFacetCounts)2 IOException (java.io.IOException)1 DrillDownQuery (org.apache.lucene.facet.DrillDownQuery)1 DrillSideways (org.apache.lucene.facet.DrillSideways)1 MatchAllDocsQuery (org.apache.lucene.search.MatchAllDocsQuery)1