code: static NamespaceNotification createNotification(FSEditLogOp op) {
      switch (op.opCode) {
        case OP_ADD:
          return new NamespaceNotification(((AddOp)op).path,
              EventType.FILE_ADDED.getByteValue(), op.getTransactionId());
  
        case OP_CLOSE:
          return new NamespaceNotification(((CloseOp)op).path,
              EventType.FILE_CLOSED.getByteValue(), op.getTransactionId());
          
        case OP_DELETE:
          return new NamespaceNotification(((DeleteOp)op).path,
              EventType.NODE_DELETED.getByteValue(), op.getTransactionId());
          
        case OP_MKDIR:
          return new NamespaceNotification(((MkdirOp)op).path,
              EventType.DIR_ADDED.getByteValue(), op.getTransactionId());
        default:
          return null;
      }
    }
docs: Converts a Transaction Log operation into a NamespaceNotification
  object.
  @param op the Transaction Log operation.
  @return the NamespaceNotification object or null if the type of
  the operation isn't supported to be transformed into a
  NamespaceNotification.