private ColumnFamilyHandle findColumnFamilyHandle(final SstColumnFamily sstColumnFamily) {
        switch (sstColumnFamily) {
            case DEFAULT:
                return this.defaultHandle;
            case SEQUENCE:
                return this.sequenceHandle;
            case LOCKING:
                return this.lockingHandle;
            case FENCING:
                return this.fencingHandle;
            default:
                throw new IllegalArgumentException("illegal sstColumnFamily: " + sstColumnFamily.name());
        }
    }
Local KV store based on RocksDB

@author dennis
@author jiachun.fjc
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/storage/RocksRawKVStore.java