protected Restlet createSessionPath(Context c) {
Restlet result = new Finder(c, SessionResource.class);
String casServerURL = System.getProperty("org.openrdf.auth.cas.server");
if (casServerURL != null) {
result = new CasAuthFilter(casServerURL, c, result);
}
else {
logger.info("System property 'org.openrdf.auth.cas.server' not defined, skipping CAS authentication");
}