* @param currentSearcher If null, add FIRST_SEARCHER, otherwise NEW_SEARCHER
* @param nlst The named list to add the EVENT value to
*/
protected NamedList addEventParms(SolrIndexSearcher currentSearcher, NamedList nlst) {
NamedList result = new NamedList();
result.addAll(nlst);
if (currentSearcher != null) {
result.add(EventParams.EVENT, EventParams.NEW_SEARCHER);
} else {
result.add(EventParams.EVENT, EventParams.FIRST_SEARCHER);
}