Interface DecodingState

    • Method Detail

      • decode

        DecodingState decode​(IoBuffer in,
                             ProtocolDecoderOutput out)
                      throws Exception
        Invoked when data is available for this state.
        Parameters:
        in - the data to be decoded.
        out - used to write decoded objects.
        Returns:
        the next state if a state transition was triggered (use this for loop transitions) or null if the state machine has reached its end.
        Throws:
        Exception - if the read data violated protocol specification.
      • finishDecode

        DecodingState finishDecode​(ProtocolDecoderOutput out)
                            throws Exception
        Invoked when the associated IoSession is closed. This method is useful when you deal with protocols which don't specify the length of a message (e.g. HTTP responses without content-length header). Implement this method to process the remaining data that decode(IoBuffer, ProtocolDecoderOutput) method didn't process completely.
        Parameters:
        out - used to write decoded objects.
        Returns:
        the next state if a state transition was triggered (use this for loop transitions) or null if the state machine has reached its end.
        Throws:
        Exception - if the read data violated protocol specification.