public static Rollup . Type getRollupComputer ( RollupType srcType , Granularity srcGran ) { switch ( srcType ) { case COUNTER : return Rollup . CounterFromCounter ; case TIMER : return Rollup . TimerFromTimer ; case GAUGE : return Rollup . GaugeFromGauge ; case BF_BASIC : return srcGran == Granularity . FULL ? Rollup . BasicFromRaw : Rollup . BasicFromBasic ; case SET : return Rollup . SetFromSet ; default : break ; } throw new IllegalArgumentException ( String . format ( "Cannot compute rollups for %s from %s" , srcType . name ( ) , srcGran . shortName ( ) ) ) ; }
determine which DataType to use for serialization .