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

Example 1 with RegexpQuery

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

the class StringFieldType method regexpQuery.

@Override
public final Query regexpQuery(String value, int flags, int maxDeterminizedStates, MultiTermQuery.RewriteMethod method, QueryShardContext context) {
    failIfNotIndexed();
    RegexpQuery query = new RegexpQuery(new Term(name(), indexedValueForSearch(value)), flags, maxDeterminizedStates);
    if (method != null) {
        query.setRewriteMethod(method);
    }
    return query;
}

Example 2 with RegexpQuery

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

the class KeywordFieldTypeTests method testRegexpQuery.

public void testRegexpQuery() {
    MappedFieldType ft = createDefaultFieldType();
    ft.setName("field");
    ft.setIndexOptions(IndexOptions.DOCS);
    assertEquals(new RegexpQuery(new Term("field", "foo.*")), ft.regexpQuery("foo.*", 0, 10, null, null));
    ft.setIndexOptions(IndexOptions.NONE);
    IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> ft.regexpQuery("foo.*", 0, 10, null, null));
    assertEquals("Cannot search on field [field] since it is not indexed.", e.getMessage());
}

Example 3 with RegexpQuery

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

the class TestSpanMultiTermQueryWrapper method testNoSuchMultiTermsInSpanFirst.

public void testNoSuchMultiTermsInSpanFirst() throws Exception {
    //this hasn't been a problem  
    FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
    SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
    SpanQuery spanFirst = new SpanFirstQuery(spanNoSuch, 10);
    assertEquals(0, searcher.search(spanFirst, 10).totalHits);
    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
    spanFirst = new SpanFirstQuery(spanWCNoSuch, 10);
    assertEquals(0, searcher.search(spanFirst, 10).totalHits);
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
    SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
    spanFirst = new SpanFirstQuery(spanRgxNoSuch, 10);
    assertEquals(0, searcher.search(spanFirst, 10).totalHits);
    PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
    SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
    spanFirst = new SpanFirstQuery(spanPrfxNoSuch, 10);
    assertEquals(0, searcher.search(spanFirst, 10).totalHits);
}

Example 4 with RegexpQuery

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

the class SynonymTokenizer method testExternalReader.

public void testExternalReader() throws Exception {
    query = new RegexpQuery(new Term(FIELD_NAME, "ken.*"));
    searcher = newSearcher(reader);
    hits = searcher.search(query, 100);
    int maxNumFragmentsRequired = 2;
    QueryScorer scorer = new QueryScorer(query, reader, FIELD_NAME);
    Highlighter highlighter = new Highlighter(this, scorer);
    for (int i = 0; i < hits.totalHits; i++) {
        final int docId = hits.scoreDocs[i].doc;
        final Document doc = searcher.doc(docId);
        String text = doc.get(FIELD_NAME);
        TokenStream tokenStream = getAnyTokenStream(FIELD_NAME, docId);
        highlighter.setTextFragmenter(new SimpleFragmenter(40));
        String result = highlighter.getBestFragments(tokenStream, text, maxNumFragmentsRequired, "...");
        if (VERBOSE)
            System.out.println("\t" + result);
    }
    assertTrue(reader.docFreq(new Term(FIELD_NAME, "hello")) > 0);
    assertTrue("Failed to find correct number of highlights " + numHighlights + " found", numHighlights == 5);
}

Example 5 with RegexpQuery

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

the class SynonymTokenizer method testSpanRegexQuery.

public void testSpanRegexQuery() throws Exception {
    query = new SpanOrQuery(new SpanMultiTermQueryWrapper<>(new RegexpQuery(new Term(FIELD_NAME, "ken.*"))));
    searcher = newSearcher(reader);
    hits = searcher.search(query, 100);
    int maxNumFragmentsRequired = 2;
    QueryScorer scorer = new QueryScorer(query, FIELD_NAME);
    Highlighter highlighter = new Highlighter(this, scorer);
    for (int i = 0; i < hits.totalHits; i++) {
        final int docId = hits.scoreDocs[i].doc;
        final Document doc = searcher.doc(docId);
        String text = doc.get(FIELD_NAME);
        TokenStream tokenStream = getAnyTokenStream(FIELD_NAME, docId);
        highlighter.setTextFragmenter(new SimpleFragmenter(40));
        String result = highlighter.getBestFragments(tokenStream, text, maxNumFragmentsRequired, "...");
        if (VERBOSE)
            System.out.println("\t" + result);
    }
    assertTrue("Failed to find correct number of highlights " + numHighlights + " found", numHighlights == 5);
}