protected HandlerResolver getHandlerResolver(final DataRequest request) {
String resolver = getStringParameter(PARAM_HANDLER_RESOLVER, request);
if (resolver == null || resolver.isEmpty()) {
return new HandlerResolverImpl(this);
}
try {
Class cls = Utils.getWorkspaceClassLoader().loadClass(resolver);
return (HandlerResolver) cls.newInstance();
} catch (ClassNotFoundException e) {