public static StoreFileTracker create(Configuration conf, boolean isPrimaryReplica,
    StoreContext ctx) {
    Class<? extends StoreFileTracker> tracker = getTrackerClass(conf);
    LOG.debug("instantiating StoreFileTracker impl {}", tracker.getName());
    return ReflectionUtils.newInstance(tracker, conf, isPrimaryReplica, ctx);
  }
Maps between configuration names for trackers and implementation classes.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/storefiletracker/StoreFileTrackerFactory.java