Examples with TURTLE org.apache.jena.riot.Lang.TURTLE used on opensource projects

Example 1 with TURTLE

use of org.apache.jena.riot.Lang.TURTLE in project trellis by trellis-ldp.

the class WebAcService method generateDefaultRootAuthorizationsDataset.

static Dataset generateDefaultRootAuthorizationsDataset(final String resource) {
    final Dataset dataset = rdf.createDataset();
    final Model model = createDefaultModel();
    try (final InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource)) {
        if (is != null) {
            LOGGER.debug("Using classpath resource for default root ACL: {}", resource);
            RDFParser.source(is).lang(TURTLE).base(TRELLIS_DATA_PREFIX).parse(model);
        } else {
            LOGGER.debug("Using external resource for default root ACL: {}", resource);
            RDFParser.source(resource).lang(TURTLE).base(TRELLIS_DATA_PREFIX).parse(model);
        }
        fromJena(model.getGraph()).stream().map(triple -> rdf.createQuad(Trellis.PreferAccessControl, triple.getSubject(), triple.getPredicate(), triple.getObject())).forEach(dataset::add);
    } catch (final IOException | RiotException ex) {
        LOGGER.warn("Couldn't initialize root ACL with {}, falling back to default: {}", resource, ex.getMessage());
    } finally {
        model.close();
    }
    // Fallback to manual creation
    if (dataset.size() == 0) {
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.mode, ACL.Read));
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.mode, ACL.Write));
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.mode, ACL.Control));
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.mode, ACL.Append));
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.agentClass, FOAF.Agent));
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.default_, root));
        dataset.add(rdf.createQuad(Trellis.PreferAccessControl, rootAuth, ACL.accessTo, root));
    }
    return dataset;
}