@Override
public URI createContext(String uri, String label) {
try {
RepositoryConnection conn = sesameService.getConnection();
try {
conn.begin();
checkConnectionNamespace(conn);
ValueFactory valueFactory = conn.getValueFactory();
URI ctx = valueFactory.createURI(uri);
if (StringUtils.isNotBlank(label)) {
conn.add(ctx, RDFS.LABEL, Literals.createLiteral(valueFactory, label), ctx);