99 lines
3.7 KiB
Java
99 lines
3.7 KiB
Java
/*
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j8583 A Java implementation of the ISO8583 protocol
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Copyright (C) 2011 Enrique Zamudio Lopez
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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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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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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.parse;
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import java.io.UnsupportedEncodingException;
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import java.text.ParseException;
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import java.util.Calendar;
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import java.util.Date;
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import com.solab.iso8583.CustomField;
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import com.solab.iso8583.IsoType;
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import com.solab.iso8583.IsoValue;
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/** This class is used to parse fields of type DATE_EXP.
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*
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* @author Enrique Zamudio
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*/
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public class DateExpParseInfo extends FieldParseInfo {
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public DateExpParseInfo() {
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super(IsoType.DATE_EXP, 4);
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}
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@Override
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public <T> IsoValue<Date> parse(final int field, final byte[] buf,
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final int pos, final CustomField<T> custom)
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throws ParseException, UnsupportedEncodingException {
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if (pos < 0) {
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throw new ParseException(String.format("Invalid DATE_EXP field %d position %d",
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field, pos), pos);
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}
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if (pos+4 > buf.length) {
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throw new ParseException(String.format(
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"Insufficient data for DATE_EXP field %d pos %d", field, pos), pos);
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}
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.HOUR, 0);
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cal.set(Calendar.MINUTE, 0);
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cal.set(Calendar.SECOND, 0);
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cal.set(Calendar.DATE, 1);
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//Set the month in the date
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if (forceStringDecoding) {
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cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) - (cal.get(Calendar.YEAR) % 100)
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+ Integer.parseInt(new String(buf, pos, 2, getCharacterEncoding())));
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cal.set(Calendar.MONTH, Integer.parseInt(new String(buf, pos+2, 2, getCharacterEncoding()))-1);
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} else {
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cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) - (cal.get(Calendar.YEAR) % 100)
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+ ((buf[pos] - 48) * 10) + buf[pos + 1] - 48);
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cal.set(Calendar.MONTH, ((buf[pos + 2] - 48) * 10) + buf[pos + 3] - 49);
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}
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return new IsoValue<Date>(type, cal.getTime(), null);
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}
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@Override
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public <T> IsoValue<Date> parseBinary(final int field, final byte[] buf,
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final int pos, final CustomField<T> custom)
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throws ParseException {
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if (pos < 0) {
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throw new ParseException(String.format("Invalid DATE_EXP field %d position %d",
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field, pos), pos);
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}
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if (pos+2 > buf.length) {
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throw new ParseException(String.format(
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"Insufficient data for DATE_EXP field %d pos %d", field, pos), pos);
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}
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int[] tens = new int[2];
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int start = 0;
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for (int i = pos; i < pos + tens.length; i++) {
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tens[start++] = (((buf[i] & 0xf0) >> 4) * 10) + (buf[i] & 0x0f);
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}
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.HOUR, 0);
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cal.set(Calendar.MINUTE, 0);
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cal.set(Calendar.SECOND, 0);
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cal.set(Calendar.DATE, 1);
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//Set the month in the date
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cal.set(Calendar.YEAR, cal.get(Calendar.YEAR)
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- (cal.get(Calendar.YEAR) % 100) + tens[0]);
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cal.set(Calendar.MONTH, tens[1] - 1);
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return new IsoValue<Date>(type, cal.getTime(), null);
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}
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}
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