public Page handle(URL url) {
String registryAddress = url.getParameter("registry", "");
List<List<String>> rows = new ArrayList<List<String>>();
Collection<Registry> registries = AbstractRegistryFactory.getRegistries();
StringBuilder select = new StringBuilder();
Registry registry = null;
if (registries != null && registries.size() > 0) {
if (registries.size() == 1) {
registry = registries.iterator().next();
select.append(" > " + registry.getUrl().getAddress());
} else {
select.append(" > <select onchange=\"window.location.href='registered.html?registry=' + this.value;\">");
for (Registry r : registries) {
String sp = r.getUrl().getAddress();
select.append("<option value=\">");