public long decode()

in src/main/java/org/apache/pdfbox/jbig2/decoder/arithmetic/ArithmeticIntegerDecoder.java [44:146]
89 lines of code
11 McCabe index (conditional complexity)

    public long decode(CX cxIAx) throws IOException
    {
        int v = 0;
        int d, s;

        int bitsToRead;
        int offset;

        if (cxIAx == null)
        {
            cxIAx = new CX(512, 1);
        }

        prev = 1;

        cxIAx.setIndex(prev);
        s = decoder.decode(cxIAx);
        setPrev(s);

        cxIAx.setIndex(prev);
        d = decoder.decode(cxIAx);
        setPrev(d);

        if (d == 1)
        {
            cxIAx.setIndex(prev);
            d = decoder.decode(cxIAx);
            setPrev(d);

            if (d == 1)
            {
                cxIAx.setIndex(prev);
                d = decoder.decode(cxIAx);
                setPrev(d);

                if (d == 1)
                {
                    cxIAx.setIndex(prev);
                    d = decoder.decode(cxIAx);
                    setPrev(d);

                    if (d == 1)
                    {
                        cxIAx.setIndex(prev);
                        d = decoder.decode(cxIAx);
                        setPrev(d);

                        if (d == 1)
                        {
                            bitsToRead = 32;
                            offset = 4436;
                        }
                        else
                        {
                            bitsToRead = 12;
                            offset = 340;
                        }
                    }
                    else
                    {
                        bitsToRead = 8;
                        offset = 84;
                    }
                }
                else
                {
                    bitsToRead = 6;
                    offset = 20;
                }
            }
            else
            {
                bitsToRead = 4;
                offset = 4;
            }
        }
        else
        {
            bitsToRead = 2;
            offset = 0;
        }

        for (int i = 0; i < bitsToRead; i++)
        {
            cxIAx.setIndex(prev);
            d = decoder.decode(cxIAx);
            setPrev(d);
            v = (v << 1) | d;
        }

        v += offset;

        if (s == 0)
        {
            return v;
        }
        else if (s == 1 && v > 0)
        {
            return -v;
        }

        return Long.MAX_VALUE;
    }