Examples with ASTLiteral org.eclipse.rdf4j.query.parser.serql.ast.ASTLiteral used on opensource projects

Example 1 with ASTLiteral

use of org.eclipse.rdf4j.query.parser.serql.ast.ASTLiteral in project rdf4j by eclipse.

the class QueryModelBuilder method visit.

@Override
public ValueConstant visit(ASTLiteral litNode, Object data) throws VisitorException {
    IRI datatype = null;
    // Get datatype URI from child URI node, if present
    ASTValueExpr dtNode = litNode.getDatatypeNode();
    if (dtNode instanceof ASTURI) {
        datatype = valueFactory.createIRI(((ASTURI) dtNode).getValue());
    } else if (dtNode != null) {
        throw new IllegalArgumentException("Unexpected datatype type: " + dtNode.getClass());
    }
    Literal literal;
    if (datatype != null) {
        literal = valueFactory.createLiteral(litNode.getLabel(), datatype);
    } else if (litNode.hasLang()) {
        literal = valueFactory.createLiteral(litNode.getLabel(), litNode.getLang());
    } else {
        literal = valueFactory.createLiteral(litNode.getLabel());
    }
    return new ValueConstant(literal);
}