}
if (conf.hasWarnings())
writer.println(conf.getWarningsString());
Purpose purpose = null;
/* Look up the requested lens purpose */
if (request.getParameter("purpose") != null && (!request.getParameter("purpose").equals("defaultPurpose")))
purpose = new Purpose(new URIImpl(Constants.nsFresnelExt + request.getParameter("purpose")));
else
purpose = new Purpose(new URIImpl("http://www.w3.org/2004/09/fresnel#defaultLens")); /* this must be provided, or a random lens is chosen */
try {
/* Perform Fresnel selection using the requested display purpose and language */
selected = conf.select(dataRepository, focalResource, purpose, langPref);