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

Example 6 with RegexpQuery

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

the class TestUnifiedHighlighterMTQ method testOneRegexp.

public void testOneRegexp() throws Exception {
    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, indexAnalyzer);
    Field body = new Field("body", "", fieldType);
    Document doc = new Document();
    doc.add(body);
    body.setStringValue("This is a test.");
    iw.addDocument(doc);
    body.setStringValue("Test a one sentence document.");
    iw.addDocument(doc);
    IndexReader ir = iw.getReader();
    iw.close();
    IndexSearcher searcher = newSearcher(ir);
    UnifiedHighlighter highlighter = new UnifiedHighlighter(searcher, indexAnalyzer);
    Query query = new RegexpQuery(new Term("body", "te.*"));
    TopDocs topDocs = searcher.search(query, 10, Sort.INDEXORDER);
    assertEquals(2, topDocs.totalHits);
    String[] snippets = highlighter.highlight("body", query, topDocs);
    assertEquals(2, snippets.length);
    assertEquals("This is a <b>test</b>.", snippets[0]);
    assertEquals("<b>Test</b> a one sentence document.", snippets[1]);
    // wrong field
    BooleanQuery bq = new BooleanQuery.Builder().add(new MatchAllDocsQuery(), BooleanClause.Occur.SHOULD).add(new RegexpQuery(new Term("bogus", "te.*")), BooleanClause.Occur.SHOULD).build();
    topDocs = searcher.search(bq, 10, Sort.INDEXORDER);
    assertEquals(2, topDocs.totalHits);
    snippets = highlighter.highlight("body", bq, topDocs);
    assertEquals(2, snippets.length);
    assertEquals("This is a test.", snippets[0]);
    assertEquals("Test a one sentence document.", snippets[1]);
    ir.close();
}

Example 7 with RegexpQuery

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

the class TestMemoryIndexAgainstRAMDir method testNullPointerException.

// LUCENE-3831
public void testNullPointerException() throws IOException {
    RegexpQuery regex = new RegexpQuery(new Term("field", "worl."));
    SpanQuery wrappedquery = new SpanMultiTermQueryWrapper<>(regex);
    MemoryIndex mindex = randomMemoryIndex();
    mindex.addField("field", new MockAnalyzer(random()).tokenStream("field", "hello there"));
    // This throws an NPE
    assertEquals(0, mindex.search(wrappedquery), 0.00001f);
    TestUtil.checkReader(mindex.createSearcher().getIndexReader());
}

Example 8 with RegexpQuery

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

the class TestQPHelper method testRegexQueryParsing.

public void testRegexQueryParsing() throws Exception {
    final String[] fields = { "b", "t" };
    final StandardQueryParser parser = new StandardQueryParser();
    parser.setMultiFields(fields);
    parser.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
    parser.setAnalyzer(new MockAnalyzer(random()));
    BooleanQuery.Builder exp = new BooleanQuery.Builder();
    //TODO spezification? was "MUST"
    exp.add(new BooleanClause(new RegexpQuery(new Term("b", "ab.+")), BooleanClause.Occur.SHOULD));
    //TODO spezification? was "MUST"
    exp.add(new BooleanClause(new RegexpQuery(new Term("t", "ab.+")), BooleanClause.Occur.SHOULD));
    assertEquals(exp.build(), parser.parse("/ab.+/", null));
    RegexpQuery regexpQueryexp = new RegexpQuery(new Term("test", "[abc]?[0-9]"));
    assertEquals(regexpQueryexp, parser.parse("test:/[abc]?[0-9]/", null));
}

Example 9 with RegexpQuery

use of org.apache.lucene.search.RegexpQuery in project Krill by KorAP.

the class TestRegexIndex method testWildcardQuestionMarkRewritten.

@Test
public void testWildcardQuestionMarkRewritten() throws IOException {
    ki = new KrillIndex();
    ki.addDoc(createFieldDoc1());
    ki.commit();
    // meine? /+w1:2,s0 &Erfahrung
    // meine? rewritten into meine.
    SpanMultiTermQueryWrapper<RegexpQuery> mtq = new SpanMultiTermQueryWrapper<RegexpQuery>(new RegexpQuery(new Term("tokens", "s:meine.")));
    SpanMultipleDistanceQuery mdsq = new SpanMultipleDistanceQuery(new SpanClassQuery(mtq, (byte) 129), new SpanClassQuery(sq, (byte) 129), constraints, true, true);
    kr = ki.search(mdsq, (short) 10);
    assertEquals(3, kr.getMatches().size());
}

Example 10 with RegexpQuery

use of org.apache.lucene.search.RegexpQuery in project Krill by KorAP.

the class TestRegexIndex method testWildcardPlusRewritten2.

@Test
public void testWildcardPlusRewritten2() throws IOException {
    ki = new KrillIndex();
    ki.addDoc(createFieldDoc1());
    ki.commit();
    // C2 mein+ /+w1:2,s0 &Erfahrung
    // mein+ rewritten into mein.?
    SpanMultiTermQueryWrapper<RegexpQuery> mtq = new SpanMultiTermQueryWrapper<RegexpQuery>(new RegexpQuery(new Term("tokens", "s:mein.?")));
    SpanMultipleDistanceQuery mdsq = new SpanMultipleDistanceQuery(new SpanClassQuery(mtq, (byte) 129), new SpanClassQuery(sq, (byte) 129), constraints, true, true);
    kr = ki.search(mdsq, (short) 10);
    assertEquals(2, kr.getMatches().size());
}