Package org.apache.lucene.facet.search.results

Examples of org.apache.lucene.facet.search.results.FacetResult

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    List<FacetResult> results = eResults.getFacetResults();
    assertEquals(3, results.size());
    String[] expLabels = new String[] { "5", "5/5", "6/2" };
    double[] expValues = new double[] { 0.0, 0.0, 1.0 };
    for (int i = 0; i < 3; i++) {
      FacetResult result = results.get(i);
      assertNotNull("Result should not be null", result);
      FacetResultNode resNode = result.getFacetResultNode();
      assertEquals("Invalid label", expLabels[i], resNode.getLabel().toString());
      assertEquals("Invalid value", expValues[i], resNode.getValue(), 0.0);
      assertEquals("Invalid number of subresults", 0, resNode.getNumSubResults());
    }
    // we're done, close the index reader and the taxonomy.
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        FacetResultsHandler frHndlr = fr.createFacetResultsHandler(taxonomyReader);
        IntermediateFacetResult tmpResult = fr2tmpRes.get(fr);
        if (tmpResult == null) {
          continue; // do not add a null to the list.
        }
        FacetResult facetRes = frHndlr.renderFacetResult(tmpResult);
        // final labeling if allowed (because labeling is a costly operation)
        if (isAllowLabeling()) {
          frHndlr.labelResult(facetRes);
        }
        res.add(facetRes);
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    // initial search - all docs matching the base query will contribute to the accumulation
    List<FacetResult> res1 = searchWithRequest(indexReader, taxoReader, null, facetRequest);
   
    // a single result (because there was a single request)
    FacetResult fres = res1.get(0);
   
    // assume the user is interested in the second sub-result
    // (just take the second sub-result returned by the iterator - we know there are 3 results!)
    Iterator<? extends FacetResultNode> resIterator = fres.getFacetResultNode().getSubResults().iterator();
    resIterator.next(); // skip first result
    CategoryPath categoryOfInterest = resIterator.next().getLabel();
   
    // drill-down preparation: turn the base query into a drill-down query for the category of interest
    Query q2 = DrillDown.query(baseQuery, categoryOfInterest);
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    IndexSearcher searcher = newSearcher(reader1);
    FacetSearchParams fsp = new FacetSearchParams();
    fsp.addFacetRequest(new CountFacetRequest(new CategoryPath("tag"), NUM_DOCS));
    FacetsCollector collector = new FacetsCollector(fsp, reader1, taxReader);
    searcher.search(new MatchAllDocsQuery(), collector);
    FacetResult result = collector.getFacetResults().get(0);
    FacetResultNode node = result.getFacetResultNode();
    for (FacetResultNode facet: node.getSubResults()) {
      int weight = (int)facet.getValue();
      int label = Integer.parseInt(facet.getLabel().getComponent(1));
      //System.out.println(label + ": " + weight);
      if (VERBOSE) {
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    params.setMaxSampleSize(50);
    params.setOversampleFactor(5);
    params.setSampingThreshold(60);
    params.setSampleRatio(0.1);
   
    FacetResult res = searchWithFacets(r, tr, fsp, params);
    FacetRequest req = res.getFacetRequest();
    assertEquals(facetRequest, req);
   
    FacetResultNode rootNode = res.getFacetResultNode();
   
    // Each node below root should also have sub-results as the requested depth was '2'
    for (FacetResultNode node : rootNode.getSubResults()) {
      assertTrue("node " + node.getLabel()
          + " should have had children as the requested depth was '2'",
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    FacetRequest origFrq = sampledFreq.orig;

    MutableFacetResultNode trimmedRootNode = MutableFacetResultNode.toImpl(facetResult.getFacetResultNode());
    trimmedRootNode.trimSubResults(origFrq.getNumResults());
   
    return new FacetResult(origFrq, trimmedRootNode, facetResult.getNumValidDescendants());
  }
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    // initial search - all docs matching the base query will contribute to the accumulation
    List<FacetResult> res1 = searchWithRequest(indexReader, taxoReader, null, facetRequest);
   
    // a single result (because there was a single request)
    FacetResult fres = res1.get(0);
   
    // assume the user is interested in the second sub-result
    // (just take the second sub-result returned by the iterator - we know there are 3 results!)
    Iterator<? extends FacetResultNode> resIterator = fres.getFacetResultNode().getSubResults().iterator();
    resIterator.next(); // skip first result
    CategoryPath categoryOfInterest = resIterator.next().getLabel();
   
    // drill-down preparation: turn the base query into a drill-down query for the category of interest
    Query q2 = DrillDown.query(baseQuery, categoryOfInterest);
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      long end = System.currentTimeMillis();
      if (VERBOSE) {
        System.out.println("Time: " + (end - start));
      }
     
      FacetResult fr = facetResults.get(0); // a, depth=3, K=2
      boolean hasDoctor = "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(9, fr.getNumValidDescendants());
      FacetResultNode parentRes = fr.getFacetResultNode();
      assertEquals(16.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(2.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(2, parentRes.getNumSubResults());
      // two nodes sorted by descending values: a/b with 8  and a/c with 6
      // a/b has residue 2 and two children a/b/2 with value 3, and a/b/1 with value 2.
      // a/c has residue 0, and one child a/c/1 with value 1.
      double [] expectedValues0 = { 8.0, 2.0, 3.0, 0.0, 2.0, 0.0, 6.0, 0.0, 1.0, 0.0 };
      int i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues0[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(expectedValues0[i++], node.getResidue(), Double.MIN_VALUE);
        for (FacetResultNode node2 : node.getSubResults()) {
          assertEquals(expectedValues0[i++], node2.getValue(), Double.MIN_VALUE);
          assertEquals(expectedValues0[i++], node2.getResidue(), Double.MIN_VALUE);
        }
      }

      // now just change the value of the first child of the root to 5, and then rearrange
      // expected are: first a/c of value 6 and residue 0, and one child a/c/1 with value 1
      // then a/b with value 5 and residue 2, and both children: a/b/2 with value 3, and a/b/1 with value 2.
      for (FacetResultNode node : parentRes.getSubResults()) {
        node.setValue(5.0);
        break;
      }
      // now rearrange
      double [] expectedValues00 = { 6.0, 0.0, 1.0, 0.0, 5.0, 2.0, 3.0, 0.0, 2.0, 0.0 };
      fr = cfra23.createFacetResultsHandler(tr).rearrangeFacetResult(fr);
      i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues00[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(expectedValues00[i++], node.getResidue(), Double.MIN_VALUE);
        for (FacetResultNode node2 : node.getSubResults()) {
          assertEquals(expectedValues00[i++], node2.getValue(), Double.MIN_VALUE);
          assertEquals(expectedValues00[i++], node2.getResidue(), Double.MIN_VALUE);
        }
      }

      fr = facetResults.get(1); // a, depth=2, K=2. same result as before
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(9, fr.getNumValidDescendants());
      parentRes = fr.getFacetResultNode();
      assertEquals(16.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(2.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(2, parentRes.getNumSubResults());
      // two nodes sorted by descending values: a/b with 8  and a/c with 6
      // a/b has residue 2 and two children a/b/2 with value 3, and a/b/1 with value 2.
      // a/c has residue 0, and one child a/c/1 with value 1.
      i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues0[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(expectedValues0[i++], node.getResidue(), Double.MIN_VALUE);
        for (FacetResultNode node2 : node.getSubResults()) {
          assertEquals(expectedValues0[i++], node2.getValue(), Double.MIN_VALUE);
          assertEquals(expectedValues0[i++], node2.getResidue(), Double.MIN_VALUE);
        }
      }

      fr = facetResults.get(2); // a, depth=1, K=2
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(4, fr.getNumValidDescendants(), 4);
      parentRes = fr.getFacetResultNode();
      assertEquals(16.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(2.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(2, parentRes.getNumSubResults());
      // two nodes sorted by descending values:
      // a/b with value 8 and residue 0 (because no children considered), 
      //  and a/c with value 6 and residue 0 (because no children considered)
      double [] expectedValues2 = { 8.0, 0.0, 6.0, 0.0 };
      i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues2[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(expectedValues2[i++], node.getResidue(), Double.MIN_VALUE);
        assertEquals(node.getNumSubResults(), 0);
      }
     
      fr = facetResults.get(3); // a/b, depth=3, K=2
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(4, fr.getNumValidDescendants());
      parentRes = fr.getFacetResultNode();
      assertEquals(8.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(2.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(2, parentRes.getNumSubResults());
      double [] expectedValues3 = { 3.0, 2.0 };
      i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues3[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(0.0, node.getResidue(), Double.MIN_VALUE);
        assertEquals(0, node.getNumSubResults());
      }

      fr = facetResults.get(4); // a/b, depth=2, K=2
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(4, fr.getNumValidDescendants());
      parentRes = fr.getFacetResultNode();
      assertEquals(8.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(2.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(2, parentRes.getNumSubResults());
      i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues3[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(0.0, node.getResidue(), Double.MIN_VALUE);
        assertEquals(0, node.getNumSubResults());
      }

      fr = facetResults.get(5); // a/b, depth=1, K=2
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(4, fr.getNumValidDescendants());
      parentRes = fr.getFacetResultNode();
      assertEquals(8.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(2.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(2, parentRes.getNumSubResults());
      i = 0;
      for (FacetResultNode node : parentRes.getSubResults()) {
        assertEquals(expectedValues3[i++], node.getValue(), Double.MIN_VALUE);
        assertEquals(0.0, node.getResidue(), Double.MIN_VALUE);
        assertEquals(0, node.getNumSubResults());
      }
     
      fr = facetResults.get(6); // a/b, depth=0, K=2
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));
      assertEquals(0, fr.getNumValidDescendants()); // 0 descendants but rootnode
      parentRes = fr.getFacetResultNode();
      assertEquals(8.0, parentRes.getValue(), Double.MIN_VALUE);
      assertEquals(0.0, parentRes.getResidue(), Double.MIN_VALUE);
      assertEquals(0, parentRes.getNumSubResults());
      hasDoctor |= "Doctor".equals(fr.getFacetRequest().getCategoryPath().getComponent(0));

      // doctor, depth=1, K=2
      assertFalse("Shouldn't have found anything for a FacetRequest " +
          "of a facet that doesn't exist in the index.", hasDoctor);
      assertEquals("Shouldn't have found more than seven request.", 7, facetResults.size());
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    List<FacetResult> results = eResults.getFacetResults();
    assertEquals(3, results.size());
    String[] expLabels = new String[] { "5", "5/5", "6/2" };
    double[] expValues = new double[] { 0.0, 0.0, 1.0 };
    for (int i = 0; i < 3; i++) {
      FacetResult result = results.get(i);
      assertNotNull("Result should not be null", result);
      FacetResultNode resNode = result.getFacetResultNode();
      assertEquals("Invalid label", expLabels[i], resNode.getLabel().toString());
      assertEquals("Invalid value", expValues[i], resNode.getValue(), 0.0);
      assertEquals("Invalid number of subresults", 0, resNode.getNumSubResults());
    }
    // we're done, close the index reader and the taxonomy.
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  private void assertCorrectResults(FacetsCollector facetsCollector)
  throws IOException, IllegalAccessException, InstantiationException {
    List<FacetResult> res = facetsCollector.getFacetResults();

    FacetResult results = res.get(0);
    FacetResultNode resNode = results.getFacetResultNode();
    Iterable<? extends FacetResultNode> subResults = resNode
    .getSubResults();
    Iterator<? extends FacetResultNode> subIter = subResults.iterator();

    checkResult(resNode, "Band", 5.0);
    checkResult(subIter.next(), "Band/Rock & Pop", 4.0);
    checkResult(subIter.next(), "Band/Punk", 1.0);

    results = res.get(1);
    resNode = results.getFacetResultNode();
    subResults = resNode.getSubResults();
    subIter = subResults.iterator();

    checkResult(resNode, "Band", 5.0);
    checkResult(subIter.next(), "Band/Rock & Pop", 4.0);
    checkResult(subIter.next(), "Band/Rock & Pop/Dave Matthews Band", 1.0);
    checkResult(subIter.next(), "Band/Rock & Pop/REM", 1.0);
    checkResult(subIter.next(), "Band/Rock & Pop/U2", 1.0);
    checkResult(subIter.next(), "Band/Punk/The Ramones", 1.0);
    checkResult(subIter.next(), "Band/Punk", 1.0);
    checkResult(subIter.next(), "Band/Rock & Pop/The Beatles", 1.0);

    results = res.get(2);
    resNode = results.getFacetResultNode();
    subResults = resNode.getSubResults();
    subIter = subResults.iterator();

    checkResult(resNode, "Author", 3.0);
    checkResult(subIter.next(), "Author/Kurt Vonnegut", 1.0);
    checkResult(subIter.next(), "Author/Stephen King", 1.0);
    checkResult(subIter.next(), "Author/Mark Twain", 1.0);

    results = res.get(3);
    resNode = results.getFacetResultNode();
    subResults = resNode.getSubResults();
    subIter = subResults.iterator();

    checkResult(resNode, "Band/Rock & Pop", 4.0);
    checkResult(subIter.next(), "Band/Rock & Pop/Dave Matthews Band", 1.0);
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  • org.apache.lucene.facet.example.TestMultiCLExample
  • org.apache.lucene.facet.example.TestSimpleExample
  • org.apache.lucene.facet.index.FacetsPayloadProcessorProviderTest
  • org.apache.lucene.facet.search.params.MultiIteratorsPerCLParamsTest
  • org.apache.lucene.facet.search.sampling.OversampleWithDepthTest
  • org.apache.lucene.facet.search.sampling.Sampler
  • org.apache.lucene.facet.search.StandardFacetsAccumulator
  • org.apache.lucene.facet.search.TestMultipleCategoryLists
  • org.apache.lucene.facet.search.TestTopKInEachNodeResultHandler
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