@Override
        public void fillRegion(final HRegion region) throws IOException {
          RegionInfo snapshotHri = snapshotRegions.get(region.getRegionInfo().getEncodedName());
          cloneRegion(region, snapshotHri, regionManifests.get(snapshotHri.getEncodedName()));
        }
Clone specified regions. For each region create a new region and create a HFileLink for each
hfile.
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/RestoreSnapshotHelper.java