This is the mavenized version of the project, and it's the one I'll be working with from now on.
git-svn-id: https://j8583.svn.sourceforge.net/svnroot/j8583/j8583@52 db60a039-f72e-0410-b1d2-baa000846441
This commit is contained in:
chochos
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/*
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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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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.math.BigDecimal;
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import java.math.BigInteger;
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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 contains the information needed to parse a field from a message buffer.
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*
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* @author Enrique Zamudio
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*/
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public class FieldParseInfo {
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private IsoType type;
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private int length;
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/** Creates a new instance that parses a value of the specified type, with the specified length.
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* The length is only useful for ALPHA and NUMERIC types.
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* @param t The ISO type to be parsed.
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* @param len The length of the data to be read (useful only for ALPHA and NUMERIC types). */
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public FieldParseInfo(IsoType t, int len) {
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if (t == null) {
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throw new IllegalArgumentException("IsoType cannot be null");
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}
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type = t;
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length = len;
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}
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/** Returns the specified length for the data to be parsed. */
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public int getLength() {
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return length;
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}
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/** Returns the data type for the data to be parsed. */
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public IsoType getType() {
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return type;
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}
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/** Parses the character data from the buffer and returns the
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* IsoValue with the correct data type in it. */
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public <T extends Object> IsoValue<?> parse(byte[] buf, int pos, CustomField<T> custom) 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 (type == IsoType.NUMERIC || type == IsoType.ALPHA) {
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if (pos+length > buf.length) {
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throw new ParseException(String.format("Insufficient data for ALPHA or NUMERIC field of length %d, pos %d",
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length, pos), pos);
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}
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if (custom == null) {
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return new IsoValue<String>(type, new String(buf, pos, length), length, null);
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} else {
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IsoValue<T> v = new IsoValue<T>(type, custom.decodeField(new String(buf, pos, length)), length, custom);
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if (v.getValue() == null) {
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return new IsoValue<String>(type, new String(buf, pos, length), length, null);
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}
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return v;
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}
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} else if (type == IsoType.LLVAR) {
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length = ((buf[pos] - 48) * 10) + (buf[pos + 1] - 48);
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if (length < 0) {
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throw new ParseException(String.format("Invalid LLVAR length %d pos %d", length, pos), pos);
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}
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if (pos+2 > buf.length || length+pos+2 > buf.length) {
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throw new ParseException(String.format("Insufficient data for LLVAR field, pos %d", pos), pos);
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}
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if (custom == null) {
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return new IsoValue<String>(type, new String(buf, pos + 2, length), null);
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} else {
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IsoValue<T> v = new IsoValue<T>(type, custom.decodeField(new String(buf, pos + 2, length)), custom);
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if (v.getValue() == null) {
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return new IsoValue<String>(type, new String(buf, pos + 2, length), null);
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}
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return v;
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}
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} else if (type == IsoType.LLLVAR) {
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length = ((buf[pos] - 48) * 100) + ((buf[pos + 1] - 48) * 10) + (buf[pos + 2] - 48);
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if (length < 0) {
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throw new ParseException(String.format("Invalid LLLVAR length %d pos %d", length, pos), pos);
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}
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if (pos+3 > buf.length || length+pos+3 > buf.length) {
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throw new ParseException(String.format("Insufficient data for LLLVAR field, pos %d", pos), pos);
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}
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if (custom == null) {
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return new IsoValue<String>(type, new String(buf, pos + 3, length), null);
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} else {
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IsoValue<T> v = new IsoValue<T>(type, custom.decodeField(new String(buf, pos + 3, length)), custom);
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if (v.getValue() == null) {
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//problems decoding? return the string
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return new IsoValue<String>(type, new String(buf, pos + 3, length), null);
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}
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return v;
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}
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} else if (type == IsoType.AMOUNT) {
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if (pos+12 > buf.length) {
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throw new ParseException(String.format("Insufficient data for AMOUNT field of length %d, pos %d",
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length, pos), pos);
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}
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byte[] c = new byte[13];
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System.arraycopy(buf, pos, c, 0, 10);
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System.arraycopy(buf, pos + 10, c, 11, 2);
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c[10] = '.';
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try {
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return new IsoValue<BigDecimal>(type, new BigDecimal(new String(c)), null);
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} catch (NumberFormatException ex) {
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throw new ParseException(String.format("Cannot read amount '%s' pos %d", new String(c), pos), pos);
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}
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} else if (type == IsoType.DATE10) {
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if (pos+10 > buf.length) {
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throw new ParseException(String.format("Insufficient data for DATE10 field of length %d, pos %d",
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length, 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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if (cal.getTime().after(new Date())) {
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cal.add(Calendar.YEAR, -1);
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}
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return new IsoValue<Date>(type, cal.getTime(), null);
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} else if (type == IsoType.DATE4) {
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if (pos+4 > buf.length) {
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throw new ParseException(String.format("Insufficient data for DATE4 field of length %d, pos %d",
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length, 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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//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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if (cal.getTime().after(new Date())) {
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cal.add(Calendar.YEAR, -1);
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}
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return new IsoValue<Date>(type, cal.getTime(), null);
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} else if (type == IsoType.DATE_EXP) {
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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) - (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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return new IsoValue<Date>(type, cal.getTime(), null);
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} else if (type == IsoType.TIME) {
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.HOUR_OF_DAY, ((buf[pos] - 48) * 10) + buf[pos + 1] - 48);
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cal.set(Calendar.MINUTE, ((buf[pos + 2] - 48) * 10) + buf[pos + 3] - 48);
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cal.set(Calendar.SECOND, ((buf[pos + 4] - 48) * 10) + buf[pos + 5] - 48);
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return new IsoValue<Date>(type, cal.getTime(), null);
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}
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return null;
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}
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/** Parses binary data from the buffer, creating and returning an IsoValue of the configured
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* type and length. */
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public <T extends Object> IsoValue<?> parseBinary(byte[] buf, int pos, CustomField<T> custom) throws ParseException {
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if (type == IsoType.ALPHA) {
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if (custom == null) {
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return new IsoValue<String>(type, new String(buf, pos, length), length, null);
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} else {
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IsoValue<T> v = new IsoValue<T>(type, custom.decodeField(new String(buf, pos, length)), length, custom);
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if (v.getValue() == null) {
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return new IsoValue<String>(type, new String(buf, pos, length), length, null);
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}
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return v;
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}
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} else if (type == IsoType.NUMERIC) {
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//A long covers up to 18 digits
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if (length < 19) {
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long l = 0;
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long power = 1L;
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for (int i = pos + (length / 2) + (length % 2) - 1; i >= pos; i--) {
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l += (buf[i] & 0x0f) * power;
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power *= 10L;
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l += ((buf[i] & 0xf0) >> 4) * power;
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power *= 10L;
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}
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return new IsoValue<Number>(IsoType.NUMERIC, l, length, null);
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} else {
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//Use a BigInteger
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char[] digits = new char[length];
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int start = 0;
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for (int i = pos; i < pos + (length / 2) + (length % 2); i++) {
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digits[start++] = (char)(((buf[i] & 0xf0) >> 4) + 48);
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digits[start++] = (char)((buf[i] & 0x0f) + 48);
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}
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return new IsoValue<Number>(IsoType.NUMERIC, new BigInteger(new String(digits)), length, null);
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}
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} else if (type == IsoType.LLVAR) {
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length = (((buf[pos] & 0xf0) >> 4) * 10) + (buf[pos] & 0x0f);
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if (custom == null) {
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return new IsoValue<String>(type, new String(buf, pos + 1, length), null);
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} else {
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IsoValue<T> v = new IsoValue<T>(type, custom.decodeField(new String(buf, pos + 1, length)), custom);
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if (v.getValue() == null) {
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return new IsoValue<String>(type, new String(buf, pos + 1, length), null);
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}
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return v;
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}
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} else if (type == IsoType.LLLVAR) {
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length = ((buf[pos] & 0x0f) * 100) + (((buf[pos + 1] & 0xf0) >> 4) * 10) + (buf[pos + 1] & 0x0f);
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if (custom == null) {
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return new IsoValue<String>(type, new String(buf, pos + 2, length), null);
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} else {
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IsoValue<T> v = new IsoValue<T>(type, custom.decodeField(new String(buf, pos + 2, length)), custom);
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if (v.getValue() == null) {
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return new IsoValue<String>(type, new String(buf, pos + 2, length), null);
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}
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return v;
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}
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} else if (type == IsoType.AMOUNT) {
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char[] digits = new char[13];
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digits[10] = '.';
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int start = 0;
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for (int i = pos; i < pos + 6; i++) {
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digits[start++] = (char)(((buf[i] & 0xf0) >> 4) + 48);
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digits[start++] = (char)((buf[i] & 0x0f) + 48);
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if (start == 10) {
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start++;
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}
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}
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return new IsoValue<BigDecimal>(IsoType.AMOUNT, new BigDecimal(new String(digits)), null);
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} else if (type == IsoType.DATE10 || type == IsoType.DATE4 || type == IsoType.DATE_EXP
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|| type == IsoType.TIME) {
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int[] tens = new int[(type.getLength() / 2) + (type.getLength() % 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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if (type == IsoType.DATE10) {
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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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if (cal.getTime().after(new Date())) {
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cal.add(Calendar.YEAR, -1);
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}
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return new IsoValue<Date>(type, cal.getTime(), null);
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} else if (type == IsoType.DATE4) {
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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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//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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if (cal.getTime().after(new Date())) {
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cal.add(Calendar.YEAR, -1);
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}
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return new IsoValue<Date>(type, cal.getTime(), null);
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} else if (type == IsoType.DATE_EXP) {
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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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} else if (type == IsoType.TIME) {
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cal.set(Calendar.HOUR_OF_DAY, tens[0]);
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cal.set(Calendar.MINUTE, tens[1]);
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cal.set(Calendar.SECOND, tens[2]);
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return new IsoValue<Date>(type, cal.getTime(), null);
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}
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return new IsoValue<Date>(type, cal.getTime(), null);
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}
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return null;
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}
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}
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Reference in New Issue
Block a user