Examples with G org.apache.jena.riot.other.G used on opensource projects

Example 1 with G

use of org.apache.jena.riot.other.G in project jena by apache.

the class Constraints method parseConstraint.

/**
 * The translate of an RDF triple into a {@link Constraint}.
 * Constraints require more that just the triple being inspected.
 */
private static Constraint parseConstraint(Graph g, Node s, Node p, Node o, Map<Node, Shape> parsed, Set<Node> traversed) {
    // Test for single triple constraints.
    ConstraintMaker maker = dispatch.get(p);
    if (maker != null)
        return maker.make(g, s, p, o);
    // These require the "parsed" map.
    if (p.equals(SHACL.not)) {
        Shape shape = ShapesParser.parseShapeStep(traversed, parsed, g, o);
        return new ShNot(shape);
    }
    if (p.equals(SHACL.or)) {
        List<Node> elts = list(g, o);
        List<Shape> shapes = elts.stream().map(x -> ShapesParser.parseShapeStep(traversed, parsed, g, x)).collect(Collectors.toList());
        return new ShOr(shapes);
    }
    if (p.equals(SHACL.and)) {
        List<Node> elts = list(g, o);
        List<Shape> shapes = elts.stream().map(x -> ShapesParser.parseShapeStep(traversed, parsed, g, x)).collect(Collectors.toList());
        return new ShAnd(shapes);
    }
    if (p.equals(SHACL.xone)) {
        List<Node> elts = list(g, o);
        List<Shape> shapes = elts.stream().map(x -> ShapesParser.parseShapeStep(traversed, parsed, g, x)).collect(Collectors.toList());
        return new ShXone(shapes);
    }
    if (p.equals(SHACL.node)) {
        Shape other = ShapesParser.parseShapeStep(traversed, parsed, g, o);
        if (other instanceof PropertyShape)
            throw new ShaclParseException("Object of sh:node must be a node shape, not a property shape");
        return new ShNode(other);
    }
    // sh:pattern is influenced by an adjacent sh:flags.
    if (p.equals(SHACL.pattern)) {
        Node pat = o;
        if (!Util.isSimpleString(pat))
            throw new ShaclParseException("Pattern is not a string: Node = " + displayStr(s) + " : Pattern = " + displayStr(pat));
        Node flagsNode = G.getSP(g, s, SHACL.flags);
        if (flagsNode != null && !Util.isSimpleString(flagsNode))
            throw new ShaclParseException("Pattern flags not a string: Node = " + displayStr(s) + " : Pattern = " + displayStr(flagsNode));
        return new PatternConstraint(pat.getLiteralLexicalForm(), (flagsNode != null) ? flagsNode.getLiteralLexicalForm() : null);
    }
    // Known component parameters.
    if (p.equals(SHACL.ignoredProperties))
        return null;
    if (p.equals(SHACL.qualifiedValueShape))
        return parseQualifiedValueShape(g, s, p, o, parsed, traversed);
    // sh:qualifiedValueShape parameters.
    if (p.equals(SHACL.QualifiedMinCountConstraintComponent) || p.equals(SHACL.QualifiedMaxCountConstraintComponent) || p.equals(SHACL.qualifiedValueShapesDisjoint))
        return null;
    if (p.equals(SHACL.path))
        throw new ShaclParseException("Unexpected constraint: " + displayStr(p) + " on " + s);
    if (p.equals(SHACL.property))
        throw new ShaclParseException("Unexpected constraint: " + displayStr(p) + " on " + s);
    return null;
}