Examples of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader

Package org.apache.lucene.facet.taxonomy.directory

Examples of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader

org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader
A {@link TaxonomyReader} which retrieves stored taxonomy information from a{@link Directory}.
Reading from the on-disk index on every method call is too slow, so this implementation employs caching: Some methods cache recent requests and their results, while other methods prefetch all the data into memory and then provide answers directly from in-memory tables. See the documentation of individual methods for comments on their performance. @lucene.experimental

    
    taxoWriter.close();
    reader = writer.getReader();
    writer.close();
    
    taxo = new DirectoryTaxonomyReader(taxoDir);
  }

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    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams fsp = new FacetSearchParams(new SumScoreFacetRequest(new CategoryPath("a"), 10));
    FacetsCollector fc = FacetsCollector.create(fsp, r, taxo);
    TopScoreDocCollector topDocs = TopScoreDocCollector.create(10, false);
    ConstantScoreQuery csq = new ConstantScoreQuery(new MatchAllDocsQuery());

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    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams sParams = new FacetSearchParams(fip,
        new CountFacetRequest(new CategoryPath("a"), 10), 
        new CountFacetRequest(new CategoryPath("b"), 10));
    FacetsCollector fc = FacetsCollector.create(sParams, r, taxo);

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    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams sParams = new FacetSearchParams(fip,
        new CountFacetRequest(new CategoryPath("a"), 10), 
        new SumScoreFacetRequest(new CategoryPath("b"), 10));

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    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams fsp = new FacetSearchParams(new CountFacetRequest(CategoryPath.EMPTY, 10));
    
    final TaxonomyFacetsAccumulator fa = random().nextBoolean() ? new TaxonomyFacetsAccumulator(fsp, r, taxo) : new OldFacetsAccumulator(fsp, r, taxo);
    FacetsCollector fc = FacetsCollector.create(fa);

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    iw.addDocument(doc);
    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams fsp = new FacetSearchParams(
        new CountFacetRequest(new CategoryPath("a"), 10), 
        new CountFacetRequest(new CategoryPath("b"), 10));
    final TaxonomyFacetsAccumulator fa = random().nextBoolean() ? new TaxonomyFacetsAccumulator(fsp, r, taxo) : new OldFacetsAccumulator(fsp, r, taxo);

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    iw.addDocument(doc);
    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams fsp = new FacetSearchParams(
        new CountFacetRequest(new CategoryPath("a"), 10), 
        new CountFacetRequest(new CategoryPath("b"), 10));
    final TaxonomyFacetsAccumulator fa = random().nextBoolean() ? new TaxonomyFacetsAccumulator(fsp, r, taxo) : new OldFacetsAccumulator(fsp, r, taxo);

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    iw.addDocument(doc);
    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);


    // assert IntFacetResultHandler
    FacetSearchParams fsp = new FacetSearchParams(new CountFacetRequest(new CategoryPath("a"), 10));
    TaxonomyFacetsAccumulator fa = random().nextBoolean() ? new TaxonomyFacetsAccumulator(fsp, r, taxo) : new OldFacetsAccumulator(fsp, r, taxo);
    FacetsCollector fc = FacetsCollector.create(fa);

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    taxonomyWriter.close();
    iw.close();
    
    DirectoryReader r = DirectoryReader.open(indexDir);
    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    CountFacetRequest cfr = new CountFacetRequest(new CategoryPath("a"), 2);
    cfr.setResultMode(random().nextBoolean() ? ResultMode.GLOBAL_FLAT : ResultMode.PER_NODE_IN_TREE);
    FacetSearchParams fsp = new FacetSearchParams(cfr);
    final TaxonomyFacetsAccumulator fa = random().nextBoolean() ? new TaxonomyFacetsAccumulator(fsp, r, taxo) : new OldFacetsAccumulator(fsp, r, taxo);

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    facetFields.addFields(doc, Arrays.asList(new CategoryPath("A/1", '/')));
    indexWriter.addDocument(doc);
    IOUtils.close(indexWriter, taxoWriter);
    
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    // ask to count a non-existing category to test labeling
    FacetSearchParams fsp = new FacetSearchParams(new CountFacetRequest(new CategoryPath("B"), 5));
    
    final SamplingParams sampleParams = new SamplingParams();

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