Examples with UriRefExpression org.apache.clerezza.rdf.core.sparql.query.UriRefExpression used on opensource projects

Example 1 with UriRefExpression

use of org.apache.clerezza.rdf.core.sparql.query.UriRefExpression in project stanbol by apache.

the class IsBlankAtom method adapt.

@SuppressWarnings("unchecked")
@Override
public <T> T adapt(RuleAtom ruleAtom) throws RuleAtomCallExeption, UnavailableRuleObjectException, UnsupportedTypeForExportException {
    org.apache.stanbol.rules.manager.atoms.IsBlankAtom tmp = (org.apache.stanbol.rules.manager.atoms.IsBlankAtom) ruleAtom;
    IObjectAtom uriResource = tmp.getUriResource();
    ClerezzaSparqlObject argumentCSO = (ClerezzaSparqlObject) adapter.adaptTo(uriResource, ConstructQuery.class);
    ;
    Object arg = argumentCSO.getClerezzaObject();
    Expression argumentExpression;
    if (arg instanceof Variable) {
        argumentExpression = (Variable) arg;
    } else if (arg instanceof IRI) {
        argumentExpression = new UriRefExpression((IRI) arg);
    } else {
        throw new RuleAtomCallExeption(getClass());
    }
    List<Expression> expressions = new ArrayList<Expression>();
    expressions.add(argumentExpression);
    return (T) new ClerezzaSparqlObject(new BuiltInCall("isBLANK", expressions));
}