Examples with CollapseTopFieldDocs org.apache.lucene.search.grouping.CollapseTopFieldDocs used on opensource projects

Example 6 with CollapseTopFieldDocs

use of org.apache.lucene.search.grouping.CollapseTopFieldDocs in project elasticsearch by elastic.

the class CollapsingTopDocsCollectorTests method testEmptyNumericSegment.

public void testEmptyNumericSegment() throws Exception {
    final Directory dir = newDirectory();
    final RandomIndexWriter w = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(new NumericDocValuesField("group", 0));
    w.addDocument(doc);
    doc.clear();
    doc.add(new NumericDocValuesField("group", 1));
    w.addDocument(doc);
    w.commit();
    doc.clear();
    doc.add(new NumericDocValuesField("group", 10));
    w.addDocument(doc);
    w.commit();
    doc.clear();
    doc.add(new NumericDocValuesField("category", 0));
    w.addDocument(doc);
    w.commit();
    final IndexReader reader = w.getReader();
    final IndexSearcher searcher = newSearcher(reader);
    SortField sortField = new SortField("group", SortField.Type.LONG);
    sortField.setMissingValue(Long.MAX_VALUE);
    Sort sort = new Sort(sortField);
    final CollapsingTopDocsCollector collapsingCollector = CollapsingTopDocsCollector.createNumeric("group", sort, 10, false);
    searcher.search(new MatchAllDocsQuery(), collapsingCollector);
    CollapseTopFieldDocs collapseTopFieldDocs = collapsingCollector.getTopDocs();
    assertEquals(4, collapseTopFieldDocs.scoreDocs.length);
    assertEquals(4, collapseTopFieldDocs.collapseValues.length);
    assertEquals(0L, collapseTopFieldDocs.collapseValues[0]);
    assertEquals(1L, collapseTopFieldDocs.collapseValues[1]);
    assertEquals(10L, collapseTopFieldDocs.collapseValues[2]);
    assertNull(collapseTopFieldDocs.collapseValues[3]);
    w.close();
    reader.close();
    dir.close();
}

Example 7 with CollapseTopFieldDocs

use of org.apache.lucene.search.grouping.CollapseTopFieldDocs in project elasticsearch by elastic.

the class CollapsingTopDocsCollectorTests method testEmptySortedSegment.

public void testEmptySortedSegment() throws Exception {
    final Directory dir = newDirectory();
    final RandomIndexWriter w = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(new SortedDocValuesField("group", new BytesRef("0")));
    w.addDocument(doc);
    doc.clear();
    doc.add(new SortedDocValuesField("group", new BytesRef("1")));
    w.addDocument(doc);
    w.commit();
    doc.clear();
    doc.add(new SortedDocValuesField("group", new BytesRef("10")));
    w.addDocument(doc);
    w.commit();
    doc.clear();
    doc.add(new NumericDocValuesField("category", 0));
    w.addDocument(doc);
    w.commit();
    final IndexReader reader = w.getReader();
    final IndexSearcher searcher = newSearcher(reader);
    Sort sort = new Sort(new SortField("group", SortField.Type.STRING_VAL));
    final CollapsingTopDocsCollector collapsingCollector = CollapsingTopDocsCollector.createKeyword("group", sort, 10, false);
    searcher.search(new MatchAllDocsQuery(), collapsingCollector);
    CollapseTopFieldDocs collapseTopFieldDocs = collapsingCollector.getTopDocs();
    assertEquals(4, collapseTopFieldDocs.scoreDocs.length);
    assertEquals(4, collapseTopFieldDocs.collapseValues.length);
    assertNull(collapseTopFieldDocs.collapseValues[0]);
    assertEquals(new BytesRef("0"), collapseTopFieldDocs.collapseValues[1]);
    assertEquals(new BytesRef("1"), collapseTopFieldDocs.collapseValues[2]);
    assertEquals(new BytesRef("10"), collapseTopFieldDocs.collapseValues[3]);
    w.close();
    reader.close();
    dir.close();
}