Examples of ChildrenIterator

Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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  }

  public static void printStats(TaxonomyReader r, PrintStream out, boolean printTree) throws IOException {
    out.println(r.getSize() + " total categories.");

    ChildrenIterator it = r.getChildren(TaxonomyReader.ROOT_ORDINAL);
    int child;
    while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
      ChildrenIterator chilrenIt = r.getChildren(child);
      int numImmediateChildren = 0;
      while (chilrenIt.next() != TaxonomyReader.INVALID_ORDINAL) {
        numImmediateChildren++;
      }
      CategoryPath cp = r.getPath(child);
      out.println("/" + cp + ": " + numImmediateChildren + " immediate children; " + (1+countAllChildren(r, child)) + " total categories");
      if (printTree) {
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    }
  }

  private static int countAllChildren(TaxonomyReader r, int ord) throws IOException {
    int count = 0;
    ChildrenIterator it = r.getChildren(ord);
    int child;
    while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
      count += 1 + countAllChildren(r, child);
    }
    return count;
  }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    }
    return count;
  }

  private static void printAllChildren(PrintStream out, TaxonomyReader r, int ord, String indent, int depth) throws IOException {
    ChildrenIterator it = r.getChildren(ord);
    int child;
    while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
      out.println(indent + "/" + r.getPath(child).components[depth]);
      printAllChildren(out, r, child, indent + "  ", depth+1);
    }
  }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    taxoWriter.close();
   
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(dir);

    // non existing category
    ChildrenIterator it = taxoReader.getChildren(taxoReader.getOrdinal(new CategoryPath("invalid")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // a category with no children
    it = taxoReader.getChildren(taxoReader.getOrdinal(new CategoryPath("c")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // arbitrary negative ordinal
    it = taxoReader.getChildren(-2);
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // root's children
    Set<String> roots = new HashSet<String>(Arrays.asList("a", "b", "c"));
    it = taxoReader.getChildren(TaxonomyReader.ROOT_ORDINAL);
    while (!roots.isEmpty()) {
      CategoryPath root = taxoReader.getPath(it.next());
      assertEquals(1, root.length);
      assertTrue(roots.remove(root.components[0]));
    }
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());
   
    for (int i = 0; i < 2; i++) {
      CategoryPath cp = i == 0 ? new CategoryPath("a") : new CategoryPath("b");
      int ordinal = taxoReader.getOrdinal(cp);
      it = taxoReader.getChildren(ordinal);
      int numChildren = 0;
      int child;
      while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
        CategoryPath path = taxoReader.getPath(child);
        assertEquals(2, path.length);
        assertEquals(path.components[0], i == 0 ? "a" : "b");
        ++numChildren;
      }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    taxoWriter.close();
   
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(dir);

    // non existing category
    ChildrenIterator it = taxoReader.getChildren(taxoReader.getOrdinal(new FacetLabel("invalid")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // a category with no children
    it = taxoReader.getChildren(taxoReader.getOrdinal(new FacetLabel("c")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // arbitrary negative ordinal
    it = taxoReader.getChildren(-2);
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // root's children
    Set<String> roots = new HashSet<String>(Arrays.asList("a", "b", "c"));
    it = taxoReader.getChildren(TaxonomyReader.ROOT_ORDINAL);
    while (!roots.isEmpty()) {
      FacetLabel root = taxoReader.getPath(it.next());
      assertEquals(1, root.length);
      assertTrue(roots.remove(root.components[0]));
    }
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());
   
    for (int i = 0; i < 2; i++) {
      FacetLabel cp = i == 0 ? new FacetLabel("a") : new FacetLabel("b");
      int ordinal = taxoReader.getOrdinal(cp);
      it = taxoReader.getChildren(ordinal);
      int numChildren = 0;
      int child;
      while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
        FacetLabel path = taxoReader.getPath(child);
        assertEquals(2, path.length);
        assertEquals(path.components[0], i == 0 ? "a" : "b");
        ++numChildren;
      }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    taxoWriter.close();
   
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(dir);

    // non existing category
    ChildrenIterator it = taxoReader.getChildren(taxoReader.getOrdinal(new CategoryPath("invalid")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // a category with no children
    it = taxoReader.getChildren(taxoReader.getOrdinal(new CategoryPath("c")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // arbitrary negative ordinal
    it = taxoReader.getChildren(-2);
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // root's children
    Set<String> roots = new HashSet<String>(Arrays.asList("a", "b", "c"));
    it = taxoReader.getChildren(TaxonomyReader.ROOT_ORDINAL);
    while (!roots.isEmpty()) {
      CategoryPath root = taxoReader.getPath(it.next());
      assertEquals(1, root.length);
      assertTrue(roots.remove(root.components[0]));
    }
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());
   
    for (int i = 0; i < 2; i++) {
      CategoryPath cp = i == 0 ? new CategoryPath("a") : new CategoryPath("b");
      int ordinal = taxoReader.getOrdinal(cp);
      it = taxoReader.getChildren(ordinal);
      int numChildren = 0;
      int child;
      while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
        CategoryPath path = taxoReader.getPath(child);
        assertEquals(2, path.length);
        assertEquals(path.components[0], i == 0 ? "a" : "b");
        ++numChildren;
      }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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  /** Recursively prints stats for all ordinals. */
  public static void printStats(TaxonomyReader r, PrintStream out, boolean printTree) throws IOException {
    out.println(r.getSize() + " total categories.");

    ChildrenIterator it = r.getChildren(TaxonomyReader.ROOT_ORDINAL);
    int child;
    while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
      ChildrenIterator chilrenIt = r.getChildren(child);
      int numImmediateChildren = 0;
      while (chilrenIt.next() != TaxonomyReader.INVALID_ORDINAL) {
        numImmediateChildren++;
      }
      FacetLabel cp = r.getPath(child);
      out.println("/" + cp.components[0] + ": " + numImmediateChildren + " immediate children; " + (1+countAllChildren(r, child)) + " total categories");
      if (printTree) {
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    }
  }

  private static int countAllChildren(TaxonomyReader r, int ord) throws IOException {
    int count = 0;
    ChildrenIterator it = r.getChildren(ord);
    int child;
    while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
      count += 1 + countAllChildren(r, child);
    }
    return count;
  }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    }
    return count;
  }

  private static void printAllChildren(PrintStream out, TaxonomyReader r, int ord, String indent, int depth) throws IOException {
    ChildrenIterator it = r.getChildren(ord);
    int child;
    while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
      out.println(indent + "/" + r.getPath(child).components[depth]);
      printAllChildren(out, r, child, indent + "  ", depth+1);
    }
  }
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Examples of org.apache.lucene.facet.taxonomy.TaxonomyReader.ChildrenIterator

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    taxoWriter.close();
   
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(dir);

    // non existing category
    ChildrenIterator it = taxoReader.getChildren(taxoReader.getOrdinal(new FacetLabel("invalid")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // a category with no children
    it = taxoReader.getChildren(taxoReader.getOrdinal(new FacetLabel("c")));
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // arbitrary negative ordinal
    it = taxoReader.getChildren(-2);
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());

    // root's children
    Set<String> roots = new HashSet<>(Arrays.asList("a", "b", "c"));
    it = taxoReader.getChildren(TaxonomyReader.ROOT_ORDINAL);
    while (!roots.isEmpty()) {
      FacetLabel root = taxoReader.getPath(it.next());
      assertEquals(1, root.length);
      assertTrue(roots.remove(root.components[0]));
    }
    assertEquals(TaxonomyReader.INVALID_ORDINAL, it.next());
   
    for (int i = 0; i < 2; i++) {
      FacetLabel cp = i == 0 ? new FacetLabel("a") : new FacetLabel("b");
      int ordinal = taxoReader.getOrdinal(cp);
      it = taxoReader.getChildren(ordinal);
      int numChildren = 0;
      int child;
      while ((child = it.next()) != TaxonomyReader.INVALID_ORDINAL) {
        FacetLabel path = taxoReader.getPath(child);
        assertEquals(2, path.length);
        assertEquals(path.components[0], i == 0 ? "a" : "b");
        ++numChildren;
      }
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