public void testWildCardQuery() throws ParseException {
Analyzer a = new ASCIIAnalyzer();
QueryParser parser = new QueryParser(FIELD, a);
parser.setAllowLeadingWildcard(true);
assertEquals("*bersetzung uber*ung", parser.parse("*bersetzung über*ung").toString(FIELD));
parser.setAllowLeadingWildcard(false);
assertEquals(
"motley crue motl?* cru?", parser.parse("Mötley Cr\u00fce Mötl?* Crü?").toString(FIELD));
assertEquals(
"renee zellweger ren?? zellw?ger",
parser.parse("Renée Zellweger Ren?? Zellw?ger").toString(FIELD));
}
public void testWildcardAlone() throws ParseException {
// seems like crazy edge case, but can be useful in concordance
QueryParser parser = new QueryParser(FIELD, new ASCIIAnalyzer());
parser.setAllowLeadingWildcard(false);
expectThrows(
ParseException.class,
() -> {
parser.parse("*");
});
QueryParser parser2 = new QueryParser("*", new ASCIIAnalyzer());
parser2.setAllowLeadingWildcard(false);
assertEquals(new MatchAllDocsQuery(), parser2.parse("*"));
}
private QueryExpression create(Request request, ResourceDefinition resourceDefinition)
throws InvalidQueryException {
String queryString;
if (request.getCardinality() == Request.Cardinality.INSTANCE) {
String idPropertyName = resourceDefinition.getIdPropertyName();
queryString =
String.format("%s:%s", idPropertyName, request.<String>getProperty(idPropertyName));
} else {
queryString = request.getQueryString();
}
QueryExpression queryExpression;
if (queryString != null && !queryString.isEmpty()) {
QueryParser queryParser = new QueryParser(Version.LUCENE_48, "name", new KeywordAnalyzer());
queryParser.setLowercaseExpandedTerms(false);
queryParser.setAllowLeadingWildcard(true);
Query query;
try {
query = queryParser.parse((String) escape(queryString));
} catch (ParseException e) {
throw new InvalidQueryException(e.getMessage());
}
LOG.info("LuceneQuery: " + query);
queryExpression = create(query, resourceDefinition);
} else {
queryExpression = new AlwaysQueryExpression();
}
// add query properties to request so that they are returned
request.addAdditionalSelectProperties(queryExpression.getProperties());
return queryExpression;
}
private List<T> search(
final String queryString,
final int pageNumber,
final int pageSize,
final PagingStrategy paging) {
final QueryParser parser = new QueryParser(DEFAULT_FIELD, new StandardAnalyzer());
parser.setAllowLeadingWildcard(true);
parser.setDefaultOperator(Operator.AND);
final FullTextSession searchSession = getSearchSession();
try {
final FullTextQuery query =
searchSession.createFullTextQuery(parser.parse(queryString), this.type);
paging.setup(query, pageNumber, pageSize);
return query.list();
} catch (final ParseException e) {
throw new EGOVRuntimeException("invalid.search.string", e);
}
}