chochos
da7e788614
git-svn-id: https://j8583.svn.sourceforge.net/svnroot/j8583/j8583@87 db60a039-f72e-0410-b1d2-baa000846441
98 lines
3.5 KiB
Java
98 lines
3.5 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.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 DATE10.
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*
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* @author Enrique Zamudio
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*/
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public class Date10ParseInfo extends FieldParseInfo {
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private static final long FUTURE_TOLERANCE;
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static {
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FUTURE_TOLERANCE = Long.parseLong(System.getProperty("j8583.future.tolerance", "900000"));
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}
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public Date10ParseInfo() {
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super(IsoType.DATE10, 10);
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}
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@Override
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public IsoValue<Date> parse(byte[] buf, int pos, CustomField<?> custom)
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throws ParseException {
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if (pos < 0) {
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throw new ParseException(String.format("Invalid position %d", pos), pos);
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}
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if (pos+10 > buf.length) {
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throw new ParseException(String.format("Insufficient data for DATE10 field, pos %d", pos), pos);
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}
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//A SimpleDateFormat in the case of dates won't help because of the missing data
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//we have to use the current date for reference and change what comes in the buffer
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Calendar cal = Calendar.getInstance();
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//Set the month in the date
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cal.set(Calendar.MONTH, ((buf[pos] - 48) * 10) + buf[pos + 1] - 49);
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cal.set(Calendar.DATE, ((buf[pos + 2] - 48) * 10) + buf[pos + 3] - 48);
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cal.set(Calendar.HOUR_OF_DAY, ((buf[pos + 4] - 48) * 10) + buf[pos + 5] - 48);
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cal.set(Calendar.MINUTE, ((buf[pos + 6] - 48) * 10) + buf[pos + 7] - 48);
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cal.set(Calendar.SECOND, ((buf[pos + 8] - 48) * 10) + buf[pos + 9] - 48);
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cal.set(Calendar.MILLISECOND,0);
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adjustWithFutureTolerance(cal);
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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 IsoValue<Date> parseBinary(byte[] buf, int pos, CustomField<?> custom) throws ParseException {
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int[] tens = new int[5];
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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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//A SimpleDateFormat in the case of dates won't help because of the missing data
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//we have to use the current date for reference and change what comes in the buffer
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//Set the month in the date
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cal.set(Calendar.MONTH, tens[0] - 1);
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cal.set(Calendar.DATE, tens[1]);
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cal.set(Calendar.HOUR_OF_DAY, tens[2]);
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cal.set(Calendar.MINUTE, tens[3]);
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cal.set(Calendar.SECOND, tens[4]);
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cal.set(Calendar.MILLISECOND,0);
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adjustWithFutureTolerance(cal);
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return new IsoValue<Date>(type, cal.getTime(), null);
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}
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public static void adjustWithFutureTolerance(Calendar cal) {
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//We need to handle a small tolerance into the future (a couple of minutes)
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long now = System.currentTimeMillis();
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long then = cal.getTimeInMillis();
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if (then > now && then-now > FUTURE_TOLERANCE) {
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cal.add(Calendar.YEAR, -1);
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}
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}
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}
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