searchSourceBuilder.version(request.paramAsBoolean("version", null));
String sField = request.param("fields");
if (sField != null) {
if (!Strings.hasText(sField)) {
searchSourceBuilder.noFields();
} else {
String[] sFields = Strings.splitStringByCommaToArray(sField);
if (sFields != null) {
for (String field : sFields) {
searchSourceBuilder.field(field);