@Override
public Object visit(PropertyIsLike filter, Object extraData) {
Expression expr = (Expression) filter.getExpression().accept(this, extraData);
String pattern = filter.getLiteral();
String wildcard = filter.getWildCard();
String singleChar = filter.getSingleChar();
String escape = filter.getEscape();
return getFactory(extraData).like(expr, pattern, wildcard, singleChar, escape, false);
}
@Override
public Object visit(PropertyIsLike filter, Object extraData) {
checkExpressionIsProperty(filter.getExpression());
StringWriter output = asStringWriter(extraData);
String pattern = escapeSpecialCharacters(filter.getLiteral(), filter.getEscape());
pattern = pattern.replace(filter.getWildCard(), ".*");
pattern = pattern.replace(filter.getSingleChar(), ".{1,1}");
Expression expr = filter.getExpression();
ExpressionToSolr visitor = new ExpressionToSolr();
expr.accept(visitor, output);
output.append(":/");
output.append(pattern);
output.append("/ ");
return output;
}
public Object visit(PropertyIsLike filter, Object notUsed) {
if (original == null) original = filter;
if (!fcs.supports(PropertyIsLike.class)) {
postStack.push(filter);
return null;
}
int i = postStack.size();
filter.getExpression().accept(this, null);
if (i < postStack.size()) {
postStack.pop();
postStack.push(filter);
return null;
}
preStack.pop(); // value
preStack.push(filter);
return null;
}
@Test
public void testLikeFilter() throws Exception {
final String wildcard = "%";
final String single = "?";
final String escape = "\\";
PropertyIsLike like =
ff.like(
ff.property("/measurement/determinand_description"),
"%n_1_1",
wildcard,
single,
escape,
true,
MatchAction.ONE);
PropertyIsLike unmapped = (PropertyIsLike) like.accept(visitor, null);
assertEquals(like.getLiteral(), unmapped.getLiteral());
assertEquals(like.getWildCard(), unmapped.getWildCard());
assertEquals(like.getSingleChar(), unmapped.getSingleChar());
assertEquals(like.getEscape(), unmapped.getEscape());
assertEquals(like.isMatchingCase(), unmapped.isMatchingCase());
assertEquals(like.getMatchAction(), unmapped.getMatchAction());
Expression unmappedExpr = unmapped.getExpression();
assertTrue(unmappedExpr instanceof PropertyName);
assertEquals("determinand_description", ((PropertyName) unmappedExpr).getPropertyName());
}