private static void ensureTableEnabled(Admin admin, TableName tableName) throws IOException {
    if (!admin.isTableEnabled(tableName)) {
      try {
        admin.enableTable(tableName);
      } catch (TableNotDisabledException ignored) {
        LOG.info("Table {} is not disabled, ignoring enable request", tableName);
      }
    }
  }
Converts cell key to backup set name.
@param current current cell
@return backup set name
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupSystemTable.java