Path getTableSnapshotPath(Path backupRootPath, TableName tableName, String backupId) {
    return new Path(HBackupFileSystem.getTableBackupPath(tableName, backupRootPath, backupId),
      HConstants.SNAPSHOT_DIR_NAME);
  }
Returns value represent path for path to backup table snapshot directory:
"/$USER/SBACKUP_ROOT/backup_id/namespace/table/.hbase-snapshot"
@param backupRootPath backup root path
@param tableName      table name
@param backupId       backup Id
@return path for snapshot
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/util/RestoreTool.java