Examples with RDFDatatype org.apache.jena.datatypes.RDFDatatype used on opensource projects

Example 21 with RDFDatatype

use of org.apache.jena.datatypes.RDFDatatype in project jena by apache.

the class FBRuleInfGraph method getDTRange.

/**
     * Return a map from property nodes to a list of RDFDatatype objects
     * which have been declared as the range of that property.
     */
protected HashMap<Node, List<RDFDatatype>> getDTRange() {
    if (dtRange == null) {
        dtRange = new HashMap<>();
        for (Iterator<Triple> i = find(null, RDFS.range.asNode(), null); i.hasNext(); ) {
            Triple triple = i.next();
            Node prop = triple.getSubject();
            Node rangeValue = triple.getObject();
            if (rangeValue.isURI()) {
                RDFDatatype dt = TypeMapper.getInstance().getTypeByName(rangeValue.getURI());
                if (dt != null) {
                    List<RDFDatatype> range = dtRange.get(prop);
                    if (range == null) {
                        range = new ArrayList<>();
                        dtRange.put(prop, range);
                    }
                    range.add(dt);
                }
            }
        }
    }
    return dtRange;
}

Example 22 with RDFDatatype

use of org.apache.jena.datatypes.RDFDatatype in project jena by apache.

the class Util method isSimpleString.

/**
     * A Node is a simple string if: 
     * <li>(RDF 1.0) No datatype and no language tag.
     * <li>(RDF 1.1) xsd:string
     */
public static boolean isSimpleString(Node n) {
    Objects.requireNonNull(n);
    RDFDatatype dt = n.getLiteralDatatype();
    if (dt == null)
        return !isLangString(n);
    if (JenaRuntime.isRDF11)
        return dt.equals(XSDDatatype.XSDstring);
    return false;
}

Example 23 with RDFDatatype

use of org.apache.jena.datatypes.RDFDatatype in project jena by apache.

the class ModelCom method createTypedLiteral.

/**
     * Build a typed literal from its lexical form. The
     * lexical form will be parsed now and the value stored. If
     * the form is not legal this will throw an exception.
     * 
     * @param lex the lexical form of the literal
     * @param typeURI the uri of the type of the literal, null for old style "plain" literals
     * @throws DatatypeFormatException if lex is not a legal form of dtype
     */
@Override
public Literal createTypedLiteral(String lex, String typeURI) {
    RDFDatatype dt = TypeMapper.getInstance().getSafeTypeByName(typeURI);
    LiteralLabel ll = LiteralLabelFactory.create(lex, dt);
    return new LiteralImpl(NodeFactory.createLiteral(ll), this);
}

Example 24 with RDFDatatype

use of org.apache.jena.datatypes.RDFDatatype in project jena by apache.

the class ParserBase method createLiteral.

protected Node createLiteral(String lexicalForm, String langTag, String datatypeURI) {
    Node n = null;
    // Can't have type and lang tag.
    if (datatypeURI != null) {
        RDFDatatype dType = TypeMapper.getInstance().getSafeTypeByName(datatypeURI);
        n = NodeFactory.createLiteral(lexicalForm, null, dType);
    } else
        n = NodeFactory.createLiteral(lexicalForm, langTag, null);
    return n;
}

Example 25 with RDFDatatype

use of org.apache.jena.datatypes.RDFDatatype in project jena by apache.

the class ParserBase method createLiteral.

protected Node createLiteral(String lexicalForm, String langTag, String datatypeURI) {
    Node n = null;
    // Can't have type and lang tag in parsing.
    if (datatypeURI != null) {
        RDFDatatype dType = TypeMapper.getInstance().getSafeTypeByName(datatypeURI);
        n = NodeFactory.createLiteral(lexicalForm, dType);
    } else if (langTag != null && !langTag.isEmpty())
        n = NodeFactory.createLiteral(lexicalForm, langTag);
    else
        n = NodeFactory.createLiteral(lexicalForm);
    return n;
}