* @return the source, not null
*/
protected HistoricalTimeSeriesSource createSource(ComponentRepository repo, HistoricalTimeSeriesResolver resolver) {
HistoricalTimeSeriesSource source = createSourcePreCaching(repo, resolver);
if (getCacheManager() != null) {
source = new EHCachingHistoricalTimeSeriesSource(source, getCacheManager());
}
return source;
}