if (userPeriod != null && userPeriod.length() > 0) {
refreshPeriod = Long.parseLong(userPeriod);
}
// resource resolver
ResourceResolver resolver = new DefaultResourceResolver();
String resolverName = ctx.getExternalContext().getInitParameter(
PARAM_RESOURCE_RESOLVER);
if (resolverName != null && resolverName.length() > 0) {
try {
resolver = (ResourceResolver) Class.forName(resolverName, true,