Java Code Examples for org.apache.jena.rdf.model.Model#contains()

/**
 * Utility method to determine whether the current uri is repository root or not. The repository root is the
 * container with type fcrepo:RepositoryRoot
 * @param uri the URI for the resource
 * @param client the FcrepoClient to query the repository
 * @param config the Config for import/export
 * @throws IOException if there is a error with the network connection
 * @throws FcrepoOperationFailedException if there is a error with Fedora
 * @return True if the URI is the root of the repository
 */
public static boolean isRepositoryRoot(final URI uri, final FcrepoClient client, final Config config)
        throws IOException, FcrepoOperationFailedException {
    final String userName = config.getUsername();
    final String rdfLanguage = config.getRdfLanguage();
    try (FcrepoResponse response = client.head(uri).disableRedirects().perform()) {
        checkValidResponse(response, uri, userName);
        // The repository root will not be a binary
        if (response.getLinkHeaders("type").contains(URI.create(NON_RDF_SOURCE.getURI()))) {
            return false;
        }
        try (FcrepoResponse resp = client.get(uri).accept(rdfLanguage).disableRedirects()
                .perform()) {
            final Model model = createDefaultModel().read(resp.getBody(), null, rdfLanguage);
            if (model.contains(null, RDF_TYPE, REPOSITORY_ROOT)) {
                return true;
            }
        }
    }
    return false;
}
 

public static Model ensureToshTriplesExist(Model shapesModel) {
	// Ensure that the SHACL, DASH and TOSH graphs are present in the shapes Model
	if(!shapesModel.contains(TOSH.hasShape, RDF.type, (RDFNode)null)) { // Heuristic
		Model unionModel = SHACLSystemModel.getSHACLModel();
		MultiUnion unionGraph = new MultiUnion(new Graph[] {
			unionModel.getGraph(),
			shapesModel.getGraph()
		});
		shapesModel = ModelFactory.createModelForGraph(unionGraph);
	}
	return shapesModel;
}
 

public static List<SHResult> getAllTopLevelResults(Model model) {
	List<SHResult> results = new LinkedList<SHResult>();
	for(Resource type : RESULT_TYPES) {
		for(Resource r : model.listResourcesWithProperty(RDF.type, type).toList()) {
			if(!model.contains(null, SH.detail, r)) {
				results.add(r.as(SHResult.class));
			}
		}
	}
	return results;
}
 

/**
 * Returns a DatasetBasedSameAsRetriever or null if the dataset does not
 * contain any owl:sameAs relations.
 * 
 * @param dataset
 * @return
 */
public static DatasetBasedSameAsRetriever create(Dataset dataset) {
    if (dataset instanceof RdfModelContainingDataset) {
        RdfModelContainingDataset rdfDataset = (RdfModelContainingDataset) dataset;
        Model model = rdfDataset.getRdfModel();
        if (model == null) {
            return null;
        }
        if (model.contains(null, OWL.sameAs)) {
            return new DatasetBasedSameAsRetriever(model, rdfDataset);
        }
    }
    return null;
}
 

private boolean resourceLinksTo(final URI linkFrom, final URI linkTo) throws FcrepoOperationFailedException {
    final FcrepoResponse response = clientBuilder.build().get(linkFrom).perform();
    final Model model = createDefaultModel().read(response.getBody(), null, "text/turtle");
    return model.contains(createResource(linkFrom.toString()), null, createResource(linkTo.toString()));
}