Example usage for org.apache.lucene.facet DrillDownQuery DrillDownQuery

Introduction

In this page you can find the example usage for org.apache.lucene.facet DrillDownQuery DrillDownQuery.

Prototype

public DrillDownQuery(FacetsConfig config) 

Source Link

Document

Creates a new DrillDownQuery without a base query, to perform a pure browsing query (equivalent to using MatchAllDocsQuery as base).

Usage

From source file:com.czw.search.lucene.example.facet.AssociationsFacetsExample.java

License:Apache License

/** User drills down on 'tags/solr'. */
private FacetResult drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("tags", "solr");
    FacetsCollector fc = new FacetsCollector();
    FacetsCollector.search(searcher, q, 10, fc);

    // Retrieve results
    Facets facets = new TaxonomyFacetSumFloatAssociations("$genre", taxoReader, config, fc);
    FacetResult result = facets.getTopChildren(10, "genre");

    indexReader.close();/* www .  ja  v  a2 s .  c  o  m*/
    taxoReader.close();

    return result;
}

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From source file:com.czw.search.lucene.example.facet.DistanceFacetsExample.java

License:Apache License

/** User drills down on the specified range. */
public TopDocs drillDown(DoubleRange range) throws IOException {

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(null);
    final DoubleValuesSource vs = getDistanceValueSource();
    q.add("field", range.getQuery(getBoundingBoxQuery(ORIGIN_LATITUDE, ORIGIN_LONGITUDE, range.max), vs));
    DrillSideways ds = new DrillSideways(searcher, config, (TaxonomyReader) null) {
        @Override/* ww w .  j  a va 2  s. c o  m*/
        protected Facets buildFacetsResult(FacetsCollector drillDowns, FacetsCollector[] drillSideways,
                String[] drillSidewaysDims) throws IOException {
            assert drillSideways.length == 1;
            return new DoubleRangeFacetCounts("field", vs, drillSideways[0], ONE_KM, TWO_KM, FIVE_KM, TEN_KM);
        }
    };
    return ds.search(q, 10).hits;
}

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From source file:com.czw.search.lucene.example.facet.RangeFacetsExample.java

License:Apache License

/** User drills down on the specified range. */
public TopDocs drillDown(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));
    return searcher.search(q, 10);
}

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From source file:com.czw.search.lucene.example.facet.RangeFacetsExample.java

License:Apache License

/** 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/*from  w  ww.j  a  va2  s .co m*/
        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;
}

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From source file:com.czw.search.lucene.example.facet.SimpleFacetsExample.java

License:Apache License

/**
 * User drills down on 'Publish Date/2011', and we
 * return facets for 'Author'//from  ww  w  .j a  v a 2s. com
 */
private FacetResult drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");
    FacetsCollector fc = new FacetsCollector();
    FacetsCollector.search(searcher, q, 10, fc);

    // Retrieve results
    Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
    FacetResult result = facets.getTopChildren(10, "Author");

    indexReader.close();
    taxoReader.close();

    return result;
}

---

From source file:com.czw.search.lucene.example.facet.SimpleFacetsExample.java

License:Apache License

/**
 * User drills down on 'Publish Date/2012', and we
 * return facets for both 'Publish Date' and 'Author',
 * using DrillSideways.// w  w w .  ja  v  a2 s  . c  o m
 */
private List<FacetResult> drillSideways() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");

    DrillSideways ds = new DrillSideways(searcher, config, taxoReader);
    DrillSidewaysResult result = ds.search(q, 10);

    // Retrieve results
    List<FacetResult> facets = result.facets.getAllDims(10);
    System.out.println("totalHits:" + result.hits.totalHits);
    ScoreDoc[] docs = result.hits.scoreDocs;
    System.out.println(searcher.doc(docs[0].doc));

    indexReader.close();
    taxoReader.close();

    return facets;
}

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From source file:com.czw.search.lucene.example.facet.SimpleSortedSetFacetsExample.java

License:Apache License

/**
 * User drills down on 'Publish Year/2010'.
 */// www .  j  a v  a2 s  .  c om
private FacetResult drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);

    // Now user drills down on Publish Year/2010:
    DrillDownQuery q = new DrillDownQuery(config);
    q.add("Publish Year", "2010");
    FacetsCollector fc = new FacetsCollector();
    FacetsCollector.search(searcher, q, 10, fc);

    // Retrieve results
    Facets facets = new SortedSetDocValuesFacetCounts(state, fc);
    FacetResult result = facets.getTopChildren(10, "Author");
    indexReader.close();

    return result;
}

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From source file:com.justinleegrant.myluceneplayground.SimpleFacetsExample.java

License:Apache License

/** User drills down on 'Publish Date/2010', and we
 *  return facets for both 'Publish Date' and 'Author',
 *  using DrillSideways. *///w  ww  .ja  v a  2s  . c  om
private List<FacetResult> drillSideways() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");

    DrillSideways ds = new DrillSideways(searcher, config, taxoReader);
    DrillSidewaysResult result = ds.search(q, 10);

    // Retrieve results
    List<FacetResult> facets = result.facets.getAllDims(10);

    indexReader.close();
    taxoReader.close();

    return facets;
}

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From source file:com.orientechnologies.lucene.test.LuceneNativeFacet.java

License:Apache License

/** User drills down on 'Publish Date/2010', and we
 *  return facets for both 'Publish Date' and 'Author',
 *  using DrillSideways. */// w w  w  .j  a va2 s .co  m
private List<FacetResult> drillSideways() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);

    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");

    DrillSideways ds = new DrillSideways(searcher, config, taxoReader);
    DrillSidewaysResult result = ds.search(q, 10);

    // Retrieve results

    List<FacetResult> facets = result.facets.getAllDims(10);

    indexReader.close();
    taxoReader.close();

    return facets;
}

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From source file:com.search.lucene.demo.facet.DistanceFacetsExample.java

License:Apache License

/** User drills down on the specified range. */
public TopDocs drillDown(DoubleRange range) throws IOException {

    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(null);
    final ValueSource vs = getDistanceValueSource();
    //    q.add("field", range.getFilter(getBoundingBoxFilter(ORIGIN_LATITUDE, ORIGIN_LONGITUDE, range.max), vs));
    DrillSideways ds = new DrillSideways(searcher, config, (TaxonomyReader) null) {
        @Override//from   w w  w .j  a  v a  2 s  .  c om
        protected Facets buildFacetsResult(FacetsCollector drillDowns, FacetsCollector[] drillSideways,
                String[] drillSidewaysDims) throws IOException {
            assert drillSideways.length == 1;
            return new DoubleRangeFacetCounts("field", vs, drillSideways[0], ONE_KM, TWO_KM, FIVE_KM, TEN_KM);
        }
    };
    return ds.search(q, 10).hits;
}

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