private UnderReplicatedBlock createUrBlock(UnderReplicatedBlocksDTO bit) {
   UnderReplicatedBlock block =
       new UnderReplicatedBlock(bit.getLevel(), bit.getBlockId(), bit.getINodeId());
   return block;
 }
 private void createPersistable(UnderReplicatedBlock block, UnderReplicatedBlocksDTO persistable) {
   persistable.setBlockId(block.getBlockId());
   persistable.setLevel(block.getLevel());
   persistable.setINodeId(block.getInodeId());
   persistable.setTimestamp(System.currentTimeMillis());
 }