Re: [jpos-users] Secondary Bitmap is mandatory as per our client system spec

[Alejandro Revilla]

I had a similar situation recently and ended up writing a special ISOBitmapPackager implementation. In my case, I was using IFA_BITMAP and replace it with this one:

@SuppressWarnings("unused")
public class IFA_RETARDED_BITMAP extends ISOBitMapPackager {
    public IFA_RETARDED_BITMAP() {
        super();
    }
    /**
     * @param len - field len
     * @param description symbolic descrption
     */
    public IFA_RETARDED_BITMAP(int len, String description) {
        super(len, description);
    }
    /**
     * @param c - a component
     * @return packed component
     * @exception ISOException
     */
    public byte[] pack (ISOComponent c) throws ISOException {
        byte[] b = ISOUtil.bitSet2byte ((BitSet) c.getValue());
        b[0] |= 0x80; // force second bitmap indicator
        StringBuilder sb = new StringBuilder(ISOUtil.hexString(b));
        if (sb.length() == 16)
            sb.append(ISOUtil.zeropad(0L, 16));
        try {
            b = sb.toString().getBytes(ISOUtil.ENCODING);
        } catch (UnsupportedEncodingException ignored) { }
        return b;
    }

    public int getMaxPackedLength() {
        return getLength() >> 2;
    }
    /**
     * @param c - the Component to unpack
     * @param b - binary image
     * @param offset - starting offset within the binary image
     * @return consumed bytes
     * @exception ISOException
     */
    public int unpack (ISOComponent c, byte[] b, int offset)
        throws ISOException
    {
        int len;
        BitSet bmap = ISOUtil.hex2BitSet (b, offset, getLength() << 3);
        c.setValue(bmap);
        len = (bmap.get(1)) ? 128 : 64; /* changed by Hani */
        if (getLength() > 16 && bmap.get(65))
            len = 192;
        return (len >> 2);
    }
    public void unpack (ISOComponent c, InputStream in) 
        throws IOException, ISOException
    {
        BitSet bmap = ISOUtil.hex2BitSet (new BitSet (64), readBytes (in, 16), 0);
        if (getLength() > 8 && bmap.get (1)) {
            ISOUtil.hex2BitSet (bmap, readBytes (in, 16), 64);
        }
        c.setValue(bmap);
    }
}

​

--

@apr

On Fri, Aug 8, 2014 at 1:26 PM, Dipin C <dipi...@gmail.com> wrote:

Hi team,

I require to form an ISOMsg with secondary bit map with zero's even though i don't have more than 64 elements. As per the system specification it is mandatory to have secondary bitmap. How can I achieve it ? Which function I need to overwrite ?

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[Alejandro Revilla]

And BTW, feel free to rename the class, I used that name to make my point that this was not a correct implementation of the standard and just to have fun with my client :)

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@apr