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

Examples of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.commit()

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   */
  @Test
  public void testSeparateReaderAndWriter() throws Exception {
    Directory indexDir = newDirectory();
    TaxonomyWriter tw = new DirectoryTaxonomyWriter(indexDir);
    tw.commit();
    TaxonomyReader tr = new DirectoryTaxonomyReader(indexDir);

    assertEquals(1, tr.getSize()); // the empty taxonomy has size 1 (the root)
    tw.addCategory(new CategoryPath("Author"));
    assertEquals(1, tr.getSize()); // still root only...
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    assertEquals(1, tr.getSize()); // the empty taxonomy has size 1 (the root)
    tw.addCategory(new CategoryPath("Author"));
    assertEquals(1, tr.getSize()); // still root only...
    assertNull(TaxonomyReader.openIfChanged(tr)); // this is not enough, because tw.commit() hasn't been done yet
    assertEquals(1, tr.getSize()); // still root only...
    tw.commit();
    assertEquals(1, tr.getSize()); // still root only...
    TaxonomyReader newTaxoReader = TaxonomyReader.openIfChanged(tr);
    assertNotNull(newTaxoReader);
    tr.close();
    tr = newTaxoReader;
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    // the parent of this category is correct (this requires the reader
    // to correctly update its prefetched parent vector), and that the
    // old information also wasn't ruined:
    tw.addCategory(new CategoryPath("Author", "Richard Dawkins"));
    int dawkins = 2;
    tw.commit();
    newTaxoReader = TaxonomyReader.openIfChanged(tr);
    assertNotNull(newTaxoReader);
    tr.close();
    tr = newTaxoReader;
    int[] parents = tr.getParallelTaxonomyArrays().parents();
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  @Test
  public void testSeparateReaderAndWriter2() throws Exception {
    Directory indexDir = newDirectory();
    TaxonomyWriter tw = new DirectoryTaxonomyWriter(indexDir);
    tw.commit();
    TaxonomyReader tr = new DirectoryTaxonomyReader(indexDir);

    // Test getOrdinal():
    CategoryPath author = new CategoryPath("Author");
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    assertEquals(TaxonomyReader.INVALID_ORDINAL, tr.getOrdinal(author));
    assertEquals(1, tr.getSize()); // still root only...
    assertNull(TaxonomyReader.openIfChanged(tr)); // this is not enough, because tw.commit() hasn't been done yet
    assertEquals(TaxonomyReader.INVALID_ORDINAL, tr.getOrdinal(author));
    assertEquals(1, tr.getSize()); // still root only...
    tw.commit();
    // still not enough before refresh:
    assertEquals(TaxonomyReader.INVALID_ORDINAL, tr.getOrdinal(author));
    assertEquals(1, tr.getSize()); // still root only...
    TaxonomyReader newTaxoReader = TaxonomyReader.openIfChanged(tr);
    assertNotNull(newTaxoReader);
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  public void testWriterLock() throws Exception {
    // native fslock impl gets angry if we use it, so use RAMDirectory explicitly.
    Directory indexDir = new RAMDirectory();
    TaxonomyWriter tw = new DirectoryTaxonomyWriter(indexDir);
    tw.addCategory(new CategoryPath("hi", "there"));
    tw.commit();
    // we deliberately not close the write now, and keep it open and
    // locked.
    // Verify that the writer worked:
    TaxonomyReader tr = new DirectoryTaxonomyReader(indexDir);
    assertEquals(2, tr.getOrdinal(new CategoryPath("hi", "there")));
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    PerDimensionIndexingParams iParams = new PerDimensionIndexingParams(Collections.<CategoryPath, CategoryListParams>emptyMap());

    seedIndex(iw, tw, iParams);

    IndexReader ir = iw.getReader();
    tw.commit();

    // prepare index reader and taxonomy.
    TaxonomyReader tr = new DirectoryTaxonomyReader(taxoDir);

    // prepare searcher to search against
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    PerDimensionIndexingParams iParams = new PerDimensionIndexingParams(
        Collections.singletonMap(new CategoryPath("Author"), new CategoryListParams("$author")));
    seedIndex(iw, tw, iParams);

    IndexReader ir = iw.getReader();
    tw.commit();

    // prepare index reader and taxonomy.
    TaxonomyReader tr = new DirectoryTaxonomyReader(taxoDir);

    // prepare searcher to search against
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    paramsMap.put(new CategoryPath("Composer"), new CategoryListParams("$music"));
    PerDimensionIndexingParams iParams = new PerDimensionIndexingParams(paramsMap);
    seedIndex(iw, tw, iParams);

    IndexReader ir = iw.getReader();
    tw.commit();

    // prepare index reader and taxonomy.
    TaxonomyReader tr = new DirectoryTaxonomyReader(taxoDir);

    // prepare searcher to search against
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    paramsMap.put(new CategoryPath("Composer"), new CategoryListParams("$composers"));
    PerDimensionIndexingParams iParams = new PerDimensionIndexingParams(paramsMap);
    seedIndex(iw, tw, iParams);

    IndexReader ir = iw.getReader();
    tw.commit();

    // prepare index reader and taxonomy.
    TaxonomyReader tr = new DirectoryTaxonomyReader(taxoDir);

    // prepare searcher to search against
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