Examples with Sort org.apache.lucene.search.Sort used on opensource projects

Example 86 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testLegacyLongReverse.

/** Tests sorting on type legacy long in reverse */
public void testLegacyLongReverse() throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(new LegacyLongField("value", 3000000000L, Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyLongField("value", -1, Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyLongField("value", 4, Field.Store.YES));
    writer.addDocument(doc);
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", Type.LEGACY_LONG));
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    Sort sort = new Sort(new SortField("value", SortField.Type.LONG, true));
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(3, td.totalHits);
    // reverse numeric order
    assertEquals("3000000000", searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
    assertEquals("-1", searcher.doc(td.scoreDocs[2].doc).get("value"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 87 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testMaxScore.

public void testMaxScore() throws Exception {
    Directory d = newDirectory();
    // Not RIW because we need exactly 2 segs:
    IndexWriter w = new IndexWriter(d, new IndexWriterConfig(new MockAnalyzer(random())));
    int id = 0;
    for (int seg = 0; seg < 2; seg++) {
        for (int docIDX = 0; docIDX < 10; docIDX++) {
            Document doc = new Document();
            doc.add(new LegacyIntField("id", docIDX, Field.Store.YES));
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < id; i++) {
                sb.append(' ');
                sb.append("text");
            }
            doc.add(newTextField("body", sb.toString(), Field.Store.NO));
            w.addDocument(doc);
            id++;
        }
        w.commit();
    }
    IndexReader r = UninvertingReader.wrap(DirectoryReader.open(w), Collections.singletonMap("id", Type.LEGACY_INTEGER));
    w.close();
    Query q = new TermQuery(new Term("body", "text"));
    IndexSearcher s = newSearcher(r);
    float maxScore = s.search(q, 10).getMaxScore();
    assertEquals(maxScore, s.search(q, 3, Sort.INDEXORDER, random().nextBoolean(), true).getMaxScore(), 0.0);
    assertEquals(maxScore, s.search(q, 3, Sort.RELEVANCE, random().nextBoolean(), true).getMaxScore(), 0.0);
    assertEquals(maxScore, s.search(q, 3, new Sort(new SortField[] { new SortField("id", SortField.Type.INT, false) }), random().nextBoolean(), true).getMaxScore(), 0.0);
    assertEquals(maxScore, s.search(q, 3, new Sort(new SortField[] { new SortField("id", SortField.Type.INT, true) }), random().nextBoolean(), true).getMaxScore(), 0.0);
    TestUtil.checkReader(r);
    r.close();
    d.close();
}

Example 88 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testFieldScoreReverse.

/** Tests default sort (by score) in reverse */
public void testFieldScoreReverse() throws Exception {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(newTextField("value", "foo bar bar bar bar", Field.Store.NO));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(newTextField("value", "foo foo foo foo foo", Field.Store.NO));
    writer.addDocument(doc);
    IndexReader ir = writer.getReader();
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    Sort sort = new Sort(new SortField(null, SortField.Type.SCORE, true));
    TopDocs actual = searcher.search(new TermQuery(new Term("value", "foo")), 10, sort);
    assertEquals(2, actual.totalHits);
    TopDocs expected = searcher.search(new TermQuery(new Term("value", "foo")), 10);
    // the two topdocs should be the reverse of each other
    assertEquals(expected.totalHits, actual.totalHits);
    assertEquals(actual.scoreDocs[0].doc, expected.scoreDocs[1].doc);
    assertEquals(actual.scoreDocs[1].doc, expected.scoreDocs[0].doc);
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 89 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testIntMissingLast.

/** Tests sorting on type int, specifying the missing value should be treated as Integer.MAX_VALUE */
public void testIntMissingLast() throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new IntPoint("value", -1));
    doc.add(new StoredField("value", -1));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new IntPoint("value", 4));
    doc.add(new StoredField("value", 4));
    writer.addDocument(doc);
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", Type.INTEGER_POINT));
    writer.close();
    IndexSearcher searcher = newSearcher(ir, false);
    SortField sortField = new SortField("value", SortField.Type.INT);
    sortField.setMissingValue(Integer.MAX_VALUE);
    Sort sort = new Sort(sortField);
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(3, td.totalHits);
    // null is treated as a Integer.MAX_VALUE
    assertEquals("-1", searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
    assertNull(searcher.doc(td.scoreDocs[2].doc).get("value"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 90 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testLegacyDoubleMissingLast.

/** Tests sorting on type legacy double, specifying the missing value should be treated as Double.MAX_VALUE */
public void testLegacyDoubleMissingLast() throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyDoubleField("value", -1.3, Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyDoubleField("value", 4.2333333333333, Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyDoubleField("value", 4.2333333333332, Field.Store.YES));
    writer.addDocument(doc);
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", Type.LEGACY_DOUBLE));
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    SortField sortField = new SortField("value", SortField.Type.DOUBLE);
    sortField.setMissingValue(Double.MAX_VALUE);
    Sort sort = new Sort(sortField);
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(4, td.totalHits);
    // null treated as Double.MAX_VALUE
    assertEquals("-1.3", searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("4.2333333333332", searcher.doc(td.scoreDocs[1].doc).get("value"));
    assertEquals("4.2333333333333", searcher.doc(td.scoreDocs[2].doc).get("value"));
    assertNull(searcher.doc(td.scoreDocs[3].doc).get("value"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}