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

Example 16 with WildcardQuery

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

the class TestUnifiedHighlighterMTQ method testSpanNear.

public void testSpanNear() 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);
    SpanQuery childQuery = new SpanMultiTermQueryWrapper<>(new WildcardQuery(new Term("body", "te*")));
    Query query = new SpanNearQuery(new SpanQuery[] { childQuery, childQuery }, 0, false);
    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]);
    ir.close();
}

Example 17 with WildcardQuery

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

the class TestUnifiedHighlighterMTQ method testSpanOr.

public void testSpanOr() 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);
    SpanQuery childQuery = new SpanMultiTermQueryWrapper<>(new WildcardQuery(new Term("body", "te*")));
    Query query = new SpanOrQuery(new SpanQuery[] { childQuery });
    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]);
    ir.close();
}

Example 18 with WildcardQuery

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

the class TestQPHelper method testEscapedWildcard.

@Ignore("flexible queryparser shouldn't escape wildcard terms")
public void testEscapedWildcard() throws Exception {
    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));
    WildcardQuery q = new WildcardQuery(new Term("field", "foo\\?ba?r"));
    assertEquals(q, qp.parse("foo\\?ba?r", "field"));
}

Example 19 with WildcardQuery

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

the class TestQPHelper method testWildcard.

public void testWildcard() throws Exception {
    assertQueryEquals("term*", null, "term*");
    assertQueryEquals("term*^2", null, "(term*)^2.0");
    assertQueryEquals("term~", null, "term~2");
    assertQueryEquals("term~0.7", null, "term~1");
    assertQueryEquals("term~^3", null, "(term~2)^3.0");
    assertQueryEquals("term^3~", null, "(term~2)^3.0");
    assertQueryEquals("term*germ", null, "term*germ");
    assertQueryEquals("term*germ^3", null, "(term*germ)^3.0");
    assertTrue(getQuery("term*", null) instanceof PrefixQuery);
    assertTrue(getQuery("term*^2", null) instanceof BoostQuery);
    assertTrue(((BoostQuery) getQuery("term*^2", null)).getQuery() instanceof PrefixQuery);
    assertTrue(getQuery("term~", null) instanceof FuzzyQuery);
    assertTrue(getQuery("term~0.7", null) instanceof FuzzyQuery);
    FuzzyQuery fq = (FuzzyQuery) getQuery("term~0.7", null);
    assertEquals(1, fq.getMaxEdits());
    assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());
    fq = (FuzzyQuery) getQuery("term~", null);
    assertEquals(2, fq.getMaxEdits());
    assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());
    // value > 1, throws exception
    assertQueryNodeException("term~1.1");
    assertTrue(getQuery("term*germ", null) instanceof WildcardQuery);
    /*
     * Tests to see that wild card terms are (or are not) properly lower-cased
     * with propery parser configuration
     */
    // First prefix queries:
    // by default, convert to lowercase:
    assertWildcardQueryEquals("Term*", "term*");
    // explicitly set lowercase:
    assertWildcardQueryEquals("term*", "term*");
    assertWildcardQueryEquals("Term*", "term*");
    assertWildcardQueryEquals("TERM*", "term*");
    // Then 'full' wildcard queries:
    // by default, convert to lowercase:
    assertWildcardQueryEquals("Te?m", "te?m");
    // explicitly set lowercase:
    assertWildcardQueryEquals("te?m", "te?m");
    assertWildcardQueryEquals("Te?m", "te?m");
    assertWildcardQueryEquals("TE?M", "te?m");
    assertWildcardQueryEquals("Te?m*gerM", "te?m*germ");
    // Fuzzy queries:
    assertWildcardQueryEquals("Term~", "term~2");
    // Range queries:
    // TODO: implement this on QueryParser
    // Q0002E_INVALID_SYNTAX_CANNOT_PARSE: Syntax Error, cannot parse '[A TO
    // C]': Lexical error at line 1, column 1. Encountered: "[" (91), after
    // : ""
    assertWildcardQueryEquals("[A TO C]", "[a TO c]");
    // Test suffix queries: first disallow
    expectThrows(QueryNodeException.class, () -> {
        assertWildcardQueryEquals("*Term", "*term");
    });
    expectThrows(QueryNodeException.class, () -> {
        assertWildcardQueryEquals("?Term", "?term");
    });
    // Test suffix queries: then allow
    assertWildcardQueryEquals("*Term", "*term", true);
    assertWildcardQueryEquals("?Term", "?term", true);
}

Example 20 with WildcardQuery

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

the class TestQPHelper method testConstantScoreAutoRewrite.

public void testConstantScoreAutoRewrite() throws Exception {
    StandardQueryParser qp = new StandardQueryParser(new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));
    Query q = qp.parse("foo*bar", "field");
    assertTrue(q instanceof WildcardQuery);
    assertEquals(MultiTermQuery.CONSTANT_SCORE_REWRITE, ((MultiTermQuery) q).getRewriteMethod());
    q = qp.parse("foo*", "field");
    assertTrue(q instanceof PrefixQuery);
    assertEquals(MultiTermQuery.CONSTANT_SCORE_REWRITE, ((MultiTermQuery) q).getRewriteMethod());
    q = qp.parse("[a TO z]", "field");
    assertTrue(q instanceof TermRangeQuery);
    assertEquals(MultiTermQuery.CONSTANT_SCORE_REWRITE, ((MultiTermQuery) q).getRewriteMethod());
}