public int readByte()

in hessian-lite/src/main/java/com/alibaba/com/caucho/hessian/io/Hessian2Input.java [2032:2115]
62 lines of code
32 McCabe index (conditional complexity)

    public int readByte()
            throws IOException {
        if (_chunkLength > 0) {
            _chunkLength--;
            if (_chunkLength == 0 && _isLastChunk)
                _chunkLength = END_OF_DATA;

            return read();
        } else if (_chunkLength == END_OF_DATA) {
            _chunkLength = 0;
            return -1;
        }

        int tag = read();

        switch (tag) {
            case 'N':
                return -1;

            case 'B':
            case BC_BINARY_CHUNK: {
                _isLastChunk = tag == 'B';
                _chunkLength = (read() << 8) + read();

                int value = parseByte();

                // special code so successive read byte won't
                // be read as a single object.
                if (_chunkLength == 0 && _isLastChunk)
                    _chunkLength = END_OF_DATA;

                return value;
            }

            case 0x20:
            case 0x21:
            case 0x22:
            case 0x23:
            case 0x24:
            case 0x25:
            case 0x26:
            case 0x27:
            case 0x28:
            case 0x29:
            case 0x2a:
            case 0x2b:
            case 0x2c:
            case 0x2d:
            case 0x2e:
            case 0x2f: {
                _isLastChunk = true;
                _chunkLength = tag - 0x20;

                int value = parseByte();

                // special code so successive read byte won't
                // be read as a single object.
                if (_chunkLength == 0)
                    _chunkLength = END_OF_DATA;

                return value;
            }

            case 0x34:
            case 0x35:
            case 0x36:
            case 0x37: {
                _isLastChunk = true;
                _chunkLength = (tag - 0x34) * 256 + read();

                int value = parseByte();

                // special code so successive read byte won't
                // be read as a single object.
                if (_chunkLength == 0)
                    _chunkLength = END_OF_DATA;

                return value;
            }

            default:
                throw expect("binary", tag);
        }
    }