com.pnuema.java.barcode.symbologies.Code39 Maven / Gradle / Ivy
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Barcode image generation library in Java
package com.pnuema.java.barcode.symbologies;
import com.pnuema.java.barcode.BarcodeCommon;
import com.pnuema.java.barcode.IBarcode;
import java.util.HashMap;
import static com.pnuema.java.barcode.utils.CharUtils.getChar;
/**
* Code 39 encoding
*/
public class Code39 extends BarcodeCommon implements IBarcode {
private HashMap C39_Code = new HashMap<>(); //is initialized by init_Code39()
private HashMap ExtC39_Translation = new HashMap<>();
private boolean _AllowExtended = false;
private boolean _EnableChecksum = false;
/**
* Encodes with Code39.
* @param input Data to encode
*/
public Code39(String input) {
setRawData(input);
}
/**
* Encodes with Code39.
* @param input Data to encode
* @param AllowExtended Allow Extended Code 39 (Full Ascii mode)
*/
public Code39(String input, boolean AllowExtended) {
setRawData(input);
_AllowExtended = AllowExtended;
}
/**
* Encodes with Code39.
* @param input Data to encode
* @param AllowExtended Allow Extended Code 39 (Full Ascii mode)
* @param EnableChecksum Whether to calculate the Mod 43 checksum and encode it into the barcode
*/
public Code39(String input, boolean AllowExtended, boolean EnableChecksum) {
setRawData(input);
_AllowExtended = AllowExtended;
_EnableChecksum = EnableChecksum;
}
/**
* Encode the raw data using the Code 39 algorithm.
* @return Encoded string representation in code 39 format
*/
private String encodeCode39() {
this.init_Code39();
this.init_ExtendedCode39();
String strNoAstr = getRawData().replace("*", "");
String strFormattedData = "*" + strNoAstr + (_EnableChecksum ? getChecksumChar(strNoAstr) : "") + "*";
if (_AllowExtended) {
InsertExtendedCharsIfNeeded(strFormattedData);
}
StringBuilder result = new StringBuilder();
//foreach (char c in this.FormattedData)
for (char c : strFormattedData.toCharArray()) {
try {
result.append(C39_Code.get(c));
result.append("0");//whitespace
} catch(Exception ex) {
if (_AllowExtended) {
error("EC39-1: Invalid data.");
} else {
error("EC39-1: Invalid data. (Try using Extended Code39)");
}
}
}
result = new StringBuilder(result.substring(0, result.length() - 1));
//clear the hashtable so it no longer takes up memory
this.C39_Code.clear();
return result.toString();
}//Encode_Code39
private void init_Code39()
{
C39_Code.clear();
C39_Code.put('0', "101001101101");
C39_Code.put('1', "110100101011");
C39_Code.put('2', "101100101011");
C39_Code.put('3', "110110010101");
C39_Code.put('4', "101001101011");
C39_Code.put('5', "110100110101");
C39_Code.put('6', "101100110101");
C39_Code.put('7', "101001011011");
C39_Code.put('8', "110100101101");
C39_Code.put('9', "101100101101");
C39_Code.put('A', "110101001011");
C39_Code.put('B', "101101001011");
C39_Code.put('C', "110110100101");
C39_Code.put('D', "101011001011");
C39_Code.put('E', "110101100101");
C39_Code.put('F', "101101100101");
C39_Code.put('G', "101010011011");
C39_Code.put('H', "110101001101");
C39_Code.put('I', "101101001101");
C39_Code.put('J', "101011001101");
C39_Code.put('K', "110101010011");
C39_Code.put('L', "101101010011");
C39_Code.put('M', "110110101001");
C39_Code.put('N', "101011010011");
C39_Code.put('O', "110101101001");
C39_Code.put('P', "101101101001");
C39_Code.put('Q', "101010110011");
C39_Code.put('R', "110101011001");
C39_Code.put('S', "101101011001");
C39_Code.put('T', "101011011001");
C39_Code.put('U', "110010101011");
C39_Code.put('V', "100110101011");
C39_Code.put('W', "110011010101");
C39_Code.put('X', "100101101011");
C39_Code.put('Y', "110010110101");
C39_Code.put('Z', "100110110101");
C39_Code.put('-', "100101011011");
C39_Code.put('.', "110010101101");
C39_Code.put(' ', "100110101101");
C39_Code.put('$', "100100100101");
C39_Code.put('/', "100100101001");
C39_Code.put('+', "100101001001");
C39_Code.put('%', "101001001001");
C39_Code.put('*', "100101101101");
}//init_Code39
private void init_ExtendedCode39()
{
ExtC39_Translation.clear();
ExtC39_Translation.put(getChar(0), "%U");
ExtC39_Translation.put(getChar(1), "$A");
ExtC39_Translation.put(getChar(2), "$B");
ExtC39_Translation.put(getChar(3), "$C");
ExtC39_Translation.put(getChar(4), "$D");
ExtC39_Translation.put(getChar(5), "$E");
ExtC39_Translation.put(getChar(6), "$F");
ExtC39_Translation.put(getChar(7), "$G");
ExtC39_Translation.put(getChar(8), "$H");
ExtC39_Translation.put(getChar(9), "$I");
ExtC39_Translation.put(getChar(10), "$J");
ExtC39_Translation.put(getChar(11), "$K");
ExtC39_Translation.put(getChar(12), "$L");
ExtC39_Translation.put(getChar(13), "$M");
ExtC39_Translation.put(getChar(14), "$N");
ExtC39_Translation.put(getChar(15), "$O");
ExtC39_Translation.put(getChar(16), "$P");
ExtC39_Translation.put(getChar(17), "$Q");
ExtC39_Translation.put(getChar(18), "$R");
ExtC39_Translation.put(getChar(19), "$S");
ExtC39_Translation.put(getChar(20), "$T");
ExtC39_Translation.put(getChar(21), "$U");
ExtC39_Translation.put(getChar(22), "$V");
ExtC39_Translation.put(getChar(23), "$W");
ExtC39_Translation.put(getChar(24), "$X");
ExtC39_Translation.put(getChar(25), "$Y");
ExtC39_Translation.put(getChar(26), "$Z");
ExtC39_Translation.put(getChar(27), "%A");
ExtC39_Translation.put(getChar(28), "%B");
ExtC39_Translation.put(getChar(29), "%C");
ExtC39_Translation.put(getChar(30), "%D");
ExtC39_Translation.put(getChar(31), "%E");
ExtC39_Translation.put("!", "/A");
ExtC39_Translation.put("\"", "/B");
ExtC39_Translation.put("#", "/C");
ExtC39_Translation.put("$", "/D");
ExtC39_Translation.put("%", "/E");
ExtC39_Translation.put("&", "/F");
ExtC39_Translation.put("'", "/G");
ExtC39_Translation.put("(", "/H");
ExtC39_Translation.put(")", "/I");
ExtC39_Translation.put("*", "/J");
ExtC39_Translation.put("+", "/K");
ExtC39_Translation.put(",", "/L");
ExtC39_Translation.put("/", "/O");
ExtC39_Translation.put(":", "/Z");
ExtC39_Translation.put(";", "%F");
ExtC39_Translation.put("<", "%G");
ExtC39_Translation.put("=", "%H");
ExtC39_Translation.put(">", "%I");
ExtC39_Translation.put("?", "%J");
ExtC39_Translation.put("[", "%K");
ExtC39_Translation.put("\\", "%L");
ExtC39_Translation.put("]", "%M");
ExtC39_Translation.put("^", "%N");
ExtC39_Translation.put("_", "%O");
ExtC39_Translation.put("{", "%P");
ExtC39_Translation.put("|", "%Q");
ExtC39_Translation.put("}", "%R");
ExtC39_Translation.put("~", "%S");
ExtC39_Translation.put("`", "%W");
ExtC39_Translation.put("@", "%V");
ExtC39_Translation.put("a", "+A");
ExtC39_Translation.put("b", "+B");
ExtC39_Translation.put("c", "+C");
ExtC39_Translation.put("d", "+D");
ExtC39_Translation.put("e", "+E");
ExtC39_Translation.put("f", "+F");
ExtC39_Translation.put("g", "+G");
ExtC39_Translation.put("h", "+H");
ExtC39_Translation.put("i", "+I");
ExtC39_Translation.put("j", "+J");
ExtC39_Translation.put("k", "+K");
ExtC39_Translation.put("l", "+L");
ExtC39_Translation.put("m", "+M");
ExtC39_Translation.put("n", "+N");
ExtC39_Translation.put("o", "+O");
ExtC39_Translation.put("p", "+P");
ExtC39_Translation.put("q", "+Q");
ExtC39_Translation.put("r", "+R");
ExtC39_Translation.put("s", "+S");
ExtC39_Translation.put("t", "+T");
ExtC39_Translation.put("u", "+U");
ExtC39_Translation.put("v", "+V");
ExtC39_Translation.put("w", "+W");
ExtC39_Translation.put("x", "+X");
ExtC39_Translation.put("y", "+Y");
ExtC39_Translation.put("z", "+Z");
ExtC39_Translation.put(getChar(127), "%T"); //also %X, %Y, %Z
}
private void InsertExtendedCharsIfNeeded(String FormattedData) {
StringBuilder output = new StringBuilder();
for (char c : FormattedData.toCharArray()) {
try {
String s = C39_Code.get(c);
output.append(c);
} catch(Exception ex) {
//insert extended substitution
Object oTrans = ExtC39_Translation.get(String.valueOf(c));
output.append(oTrans.toString());
}
}
FormattedData = output.toString();
}
private char getChecksumChar(String strNoAstr) {
//checksum
String Code39_Charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%";
InsertExtendedCharsIfNeeded(strNoAstr);
int sum = 0;
//Calculate the checksum
for (int i = 0; i < strNoAstr.length(); ++i) {
sum = sum + Code39_Charset.indexOf(strNoAstr.toCharArray()[i]);
}
//return the checksum char
return Code39_Charset.toCharArray()[sum % 43];
}
@Override
public String getEncodedValue() {
return encodeCode39();
}
}
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