001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.iso;
020
021import java.util.BitSet;
022
023/**
024 * ASCII packaged Bitmap
025 *
026 * @author apr@cs.com.uy
027 * @version $Id$
028 * @see ISOComponent
029 * @see ISOBitMapPackager
030 */
031public class X92_BITMAP extends ISOBitMapPackager {
032    /** Default constructor. */
033    public X92_BITMAP() {
034        super();
035    }
036    /**
037     * Constructs a packager with the given length and description.
038     * @param len - field len
039     * @param description symbolic descrption
040     */
041    public X92_BITMAP(int len, String description) {
042        super(len, description);
043    }
044    /**
045     * @param c - a component
046     * @return packed component
047     * @exception ISOException on ISO processing error
048     */
049    public byte[] pack (ISOComponent c) throws ISOException {
050        byte[] b = ISOUtil.bitSet2byte ((BitSet) c.getValue());
051        return ISOUtil.hexString(b).getBytes();
052    }
053    /**
054     * @param c - the Component to unpack
055     * @param b - binary image
056     * @param offset - starting offset within the binary image
057     * @return consumed bytes
058     * @exception ISOException on ISO processing error
059     */
060    public int unpack (ISOComponent c, byte[] b, int offset)
061        throws ISOException
062    {
063        BitSet bmap = ISOUtil.hex2BitSet (b, offset, false);
064        c.setValue(bmap);
065        return bmap.size() >> 2;
066    }
067    public int getMaxPackedLength() {
068        return getLength() >> 2;
069    }
070}