Examples with Node org.apache.jena.graph.Node used on opensource projects

Example 11 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class RiotLib method parse.

/** Parse a string to get one Node (the first token in the string) */
public static Node parse(String string) {
    Tokenizer tokenizer = TokenizerFactory.makeTokenizerString(string);
    if (!tokenizer.hasNext())
        return null;
    Token t = tokenizer.next();
    Node n = profile.create(null, t);
    if (tokenizer.hasNext())
        Log.warn(RiotLib.class, "String has more than one token in it: " + string);
    return n;
}

Example 12 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class PropFuncArg method asExprList.

/** @deprecated To be removed - use {@link #asExprList()} */
@Deprecated
public ExprList asExprList(PropFuncArg pfArg) {
    ExprList exprList = new ExprList();
    if (pfArg.isNode()) {
        Node n = pfArg.getArg();
        Expr expr = ExprUtils.nodeToExpr(n);
        exprList.add(expr);
        return exprList;
    }
    for (Node n : pfArg.getArgList()) {
        Expr expr = ExprUtils.nodeToExpr(n);
        exprList.add(expr);
    }
    return exprList;
}

Example 13 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class QueryTest method convertToStrings.

private ResultSetRewindable convertToStrings(ResultSetRewindable resultsActual) {
    List<Binding> bindings = new ArrayList<>();
    while (resultsActual.hasNext()) {
        Binding b = resultsActual.nextBinding();
        BindingMap b2 = BindingFactory.create();
        for (String vn : resultsActual.getResultVars()) {
            Var v = Var.alloc(vn);
            Node n = b.get(v);
            String s;
            if (n == null)
                s = "";
            else if (n.isBlank())
                s = "_:" + n.getBlankNodeLabel();
            else
                s = NodeFunctions.str(n);
            b2.add(v, NodeFactory.createLiteral(s));
        }
        bindings.add(b2);
    }
    ResultSet rs = new ResultSetStream(resultsActual.getResultVars(), null, new QueryIterPlainWrapper(bindings.iterator()));
    return ResultSetFactory.makeRewindable(rs);
}

Example 14 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class LabelToNodeMap method asNode.

public Node asNode(String label) {
    Node n = bNodeLabels.get(label);
    if (n != null)
        return n;
    n = allocNode();
    bNodeLabels.put(label, n);
    return n;
}

Example 15 with Node

use of org.apache.jena.graph.Node in project jena by apache.

the class ParserBase method createNode.

protected Node createNode(String iri) {
    // Is it a bNode label? i.e. <_:xyz>
    if (isBNodeIRI(iri)) {
        String s = iri.substring(bNodeLabelStart.length());
        Node n = NodeFactory.createBlankNode(s);
        return n;
    }
    return NodeFactory.createURI(iri);
}