59 lines
1.8 KiB
Java
59 lines
1.8 KiB
Java
/*
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* j8583 A Java implementation of the ISO8583 protocol
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* Copyright (C) 2007 Enrique Zamudio Lopez
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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package com.solab.iso8583.codecs;
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import com.solab.iso8583.CustomBinaryField;
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import com.solab.iso8583.util.Bcd;
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import java.math.BigInteger;
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/**
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* A custom field encoder/decoder to be used with LLBIN/LLLBIN fields
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* that contain BigIntegers in BCD encoding.
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*
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* @author Enrique Zamudio
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* Date: 07/05/13 13:02
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*/
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public class BigIntBcdCodec implements CustomBinaryField<BigInteger> {
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@Override
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public BigInteger decodeBinaryField(byte[] value, int pos, int len) {
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return Bcd.decodeToBigInteger(value, pos, len*2);
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}
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@Override
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public byte[] encodeBinaryField(BigInteger value) {
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final String s = value.toString(10);
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final byte[] buf = new byte[s.length() / 2 + s.length() % 2];
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Bcd.encode(s, buf);
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return buf;
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}
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@Override
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public BigInteger decodeField(String value) {
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return new BigInteger(value, 10);
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}
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@Override
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public String encodeField(BigInteger value) {
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return value.toString(10);
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}
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}
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