Examples of org.apache.lucene.facet.search.params.FacetSearchParams

Package org.apache.lucene.facet.search.params

Examples of org.apache.lucene.facet.search.params.FacetSearchParams

org.apache.lucene.facet.search.params.FacetSearchParams
Faceted search parameters indicate for which facets should info be gathered.
The contained facet requests define for which facets should info be gathered.
Contained faceted indexing parameters provide required info on how to read and interpret the underlying faceted information in the search index. @lucene.experimental


    TopScoreDocCollector topDocsCollector = TopScoreDocCollector.create(10,
        true);


    // Faceted search parameters indicate which facets are we interested in
    FacetSearchParams facetSearchParams = new FacetSearchParams(iParams);
    facetSearchParams.addFacetRequest(new CountFacetRequest(
        new CategoryPath("5"), 10));
    facetSearchParams.addFacetRequest(new CountFacetRequest(
        new CategoryPath("5", "5"), 10));
    facetSearchParams.addFacetRequest(new CountFacetRequest(
        new CategoryPath("6", "2"), 10));


    // Facets collector is the simplest interface for faceted search.
    // It provides faceted search functions that are sufficient to many
    // application,

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  /**
   * Faceted Search Params with specified partition size.
   * @see #getFacetedSearchParams()
   */
  protected FacetSearchParams getFacetedSearchParams(int partitionSize) {
    FacetSearchParams res = new FacetSearchParams(getFacetIndexingParams(partitionSize));
    return res; 
  }

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      CountFacetRequest cfrb20 = new CountFacetRequest(
          new CategoryPath("a", "b"), 2);
      cfrb20.setDepth(0);
      cfrb20.setResultMode(ResultMode.PER_NODE_IN_TREE);


      FacetSearchParams facetSearchParams = new FacetSearchParams(iParams);
      facetSearchParams.addFacetRequest(cfra23);
      facetSearchParams.addFacetRequest(cfra22);
      facetSearchParams.addFacetRequest(cfra21);
      facetSearchParams.addFacetRequest(cfrb23);
      facetSearchParams.addFacetRequest(cfrb22);
      facetSearchParams.addFacetRequest(cfrb21);
      facetSearchParams.addFacetRequest(doctor);
      facetSearchParams.addFacetRequest(cfrb20);
      
      IntArrayAllocator iaa = new IntArrayAllocator(PartitionsUtils.partitionSize(facetSearchParams,tr), 1);
      FloatArrayAllocator faa = new FloatArrayAllocator(PartitionsUtils.partitionSize(facetSearchParams,tr), 1);
      FacetsAccumulator fctExtrctr = new StandardFacetsAccumulator(facetSearchParams, is.getIndexReader(), tr, iaa, faa);
      fctExtrctr.setComplementThreshold(FacetsAccumulator.DISABLE_COMPLEMENT);

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  /**
   * Over-sampled search params, wrapping each request with an over-sampled one.
   */
  public FacetSearchParams overSampledSearchParams(FacetSearchParams original) {
    FacetSearchParams res = original;
    // So now we can sample -> altering the searchParams to accommodate for the statistical error for the sampling
    double overSampleFactor = getSamplingParams().getOversampleFactor();
    if (overSampleFactor > 1) { // any factoring to do?
      res = new FacetSearchParams(original.getFacetIndexingParams());
      for (FacetRequest frq: original.getFacetRequests()) {
        int overSampledNumResults = (int) Math.ceil(frq.getNumResults() * overSampleFactor);
        res.addFacetRequest(new OverSampledFacetRequest(frq, overSampledNumResults));
      }
    }
    return res;
  }

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    Query q = new MatchAllDocsQuery();
    TopScoreDocCollector topDocsCollector = TopScoreDocCollector.create(10,
        true);


    // Faceted search parameters indicate which facets are we interested in
    FacetSearchParams facetSearchParams = new FacetSearchParams(iParams);


    facetSearchParams.addFacetRequest(new CountFacetRequest(
        new CategoryPath("Band"), 10));
    CountFacetRequest bandDepth = new CountFacetRequest(new CategoryPath(
    "Band"), 10);
    bandDepth.setDepth(2);
    facetSearchParams.addFacetRequest(bandDepth);
    facetSearchParams.addFacetRequest(new CountFacetRequest(
        new CategoryPath("Author"), 10));
    facetSearchParams.addFacetRequest(new CountFacetRequest(
        new CategoryPath("Band", "Rock & Pop"), 10));


    // perform documents search and facets accumulation
    FacetsCollector facetsCollector = new FacetsCollector(facetSearchParams, ir, tr);
    searcher.search(q, MultiCollector.wrap(topDocsCollector, facetsCollector));

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  protected FacetSearchParams searchParamsWithRequests(int numResults) {
    return searchParamsWithRequests(numResults, Integer.MAX_VALUE);
  }
  
  protected FacetSearchParams searchParamsWithRequests(int numResults, int partitionSize) {
    FacetSearchParams res = getFacetedSearchParams(partitionSize);
    res.addFacetRequest(new CountFacetRequest(new CategoryPath("a"), numResults));
    res.addFacetRequest(new CountFacetRequest(new CategoryPath("a", "1"), numResults));
    res.addFacetRequest(new CountFacetRequest(new CategoryPath("a", "1", "10"), numResults));
    res.addFacetRequest(new CountFacetRequest(new CategoryPath("a", "2",  "26", "267"), numResults));
    return res;
  }

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        // Get all of the documents and run the query, then do different
        // facet counts and compare to control
        Query q = new TermQuery(new Term(CONTENT_FIELD, BETA)); // 90% of the docs
        ScoredDocIdCollector docCollector = ScoredDocIdCollector.create(searcher.maxDoc(), false);
        
        FacetSearchParams expectedSearchParams = searchParamsWithRequests(K, partitionSize); 
        FacetsCollector fc = new FacetsCollector(expectedSearchParams, indexReader, taxoReader);
        
        searcher.search(q, MultiCollector.wrap(docCollector, fc));
        
        List<FacetResult> expectedResults = fc.getFacetResults();
        
        FacetSearchParams samplingSearchParams = searchParamsWithRequests(K, partitionSize); 
        
        // try several times in case of failure, because the test has a chance to fail 
        // if the top K facets are not sufficiently common with the sample set
        for (int nTrial=0; nTrial<RETRIES; nTrial++) {
          try {

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    CategoryListParams bClParams = new CategoryListParams(new Term("testing_facets_b", "b"));
    
    iParams.addCategoryListParams(new CategoryPath("a"), aClParams);
    iParams.addCategoryListParams(new CategoryPath("b"), bClParams);
    
    nonDefaultParams = new FacetSearchParams(iParams);
  }

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  @Test
  public void testIntSumAssociation() throws Exception {
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);


    // facet requests for two facets
    FacetSearchParams fsp = new FacetSearchParams();
    fsp.addFacetRequest(new AssociationIntSumFacetRequest(aint, 10));
    fsp.addFacetRequest(new AssociationIntSumFacetRequest(bint, 10));
    
    Query q = new MatchAllDocsQuery();


    FacetsCollector fc = new FacetsCollector(fsp, reader, taxo);

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  @Test
  public void testFloatSumAssociation() throws Exception {
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);


    // facet requests for two facets
    FacetSearchParams fsp = new FacetSearchParams();
    fsp.addFacetRequest(new AssociationFloatSumFacetRequest(afloat, 10));
    fsp.addFacetRequest(new AssociationFloatSumFacetRequest(bfloat, 10));
    
    Query q = new MatchAllDocsQuery();


    FacetsCollector fc = new FacetsCollector(fsp, reader, taxo);

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