Error unpacking termapp.iso response

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flavian machimbirike

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Oct 28, 2023, 1:16:15 PM10/28/23

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Dear Team,

I trust you are in good health. I'm encountering an issue while sending a message labeled "1304" to a Termapp.iso server. The request and response are correctly logged in Postilion. However, my application is failing to properly unpack the response, resulting in garbled data. Upon closer examination, I discovered that the response I receive contains header information from the request, which prevents me from unpacking it successfully.

Here are my questions:

1. Is there a way for me to obtain the unpacked string so that I can extract the header and then use my custom packager to unpack the message?
2. Do I need to make any modifications to my packager to ensure that the header is not included in the response?

3. How do I properly unpack the message

I would greatly appreciate any assistance.

Attached, please find my packager and the code snippet:

public String test() throws Exception {
// this.unpack("313330348030010000C000000200000008000000303030303031303030303030323331303233333035504F534330303031504F534330303030303030303030313030303030303030313541423A303030303A6170705F6D6170");
ISOMsg isoMsg = new ISOMsg("1304");
isoMsg.setDirection(OUTGOING);
isoMsg.setHeader(ISOUtil.hex2byte("00"));
isoMsg.set("011", "000001");
isoMsg.set("012", "231023");
isoMsg.set("024", "305");
isoMsg.set("041", "POSC0001");
isoMsg.set("042", "POSC00000000001");
isoMsg.set("071", "0000");
isoMsg.set("101", ISOUtil.hex2byte("41423A303030303A6170705F6D6170"));
sendRequest(isoMsg);
return "To infinity and beyond";
}

private ISOMsg sendRequest(ISOMsg isoMsg) throws Exception {
log.info("########################### Sending Messages: {}");
try {
Logger logger = new Logger();
logger.addListener(new SimpleLogListener(System.out));
// ISOChannel channel = new PostChannel("######", 9305, packager);

((LogSource) channel).setLogger(logger, "xml-server-9000");
channel.connect();
channel.send(isoMsg);

return channel.receive();
} catch (IOException | ISOException ex) {
if (ex instanceof SocketException) {
log.info("########################### Issuer unavailable: {}", ex.getMessage());
}
log.info("########################### Failing to connect: {}", ex.getMessage());
throw new IOException("Failed to connect");
}
}

public String unpack(String string) {
String isoMessage = string;
try {
// Create a GenericPackager using the appropriate XML configuration file
ISOPackager packager = new GenericPackager("C:\\Users\\ALTRON-FLA\\Documents\\N\\hsm-client\\src\\main\\resources\\isoswitch.xml"); // Replace with the path to your ISO message structure configuration file

// Create an ISOMsg instance
ISOMsg isoMsg = new ISOMsg();
// Unpack the ISO message
isoMsg.setPackager(packager);
isoMsg.unpack(ISOUtil.hex2byte(isoMessage));
// Access and print individual ISO fields
for (int i = 2; i <= 128; i++) {
if (isoMsg.hasField(i)) {
System.out.println("Field " + i + ": " + isoMsg.getString(i));
}
}
} catch (ISOException e) {
e.printStackTrace();
}

return null;
}

Request:

Response throwing exceptions:

<unpack>
00313331348020010002C000000300000008000000303030303031333036333030504F534330303031504F534330303030303030303030313030303030303031303434412C30303030303433342E432C30303030303030392E442C30303030303031462E452C30303030303043302E313541423A303030303A6170705F6D6170

Bitmap

0000 00 31 33 31 34 80 20 01 00 02 C0 00 00 03 00 00 .1314. .........
0010 00 08 00 00 00 30 30 30 30 30 31 33 30 36 33 30 .....00000130630
0020 30 50 4F 53 43 30 30 30 31 50 4F 53 43 30 30 30 0POSC0001POSC000
0030 30 30 30 30 30 30 30 31 30 30 30 30 30 30 30 31 0000000100000001
0040 30 34 34 41 2C 30 30 30 30 30 34 33 34 2E 43 2C 044A,00000434.C,
0050 30 30 30 30 30 30 30 39 2E 44 2C 30 30 30 30 30 00000009.D,00000
0060 30 31 46 2E 45 2C 30 30 30 30 30 30 43 30 2E 31 01F.E,000000C0.1
0070 35 41 42 3A 30 30 30 30 3A 61 70 70 5F 6D 61 70 5AB:0000:app_map

Best regards,

Flavian T Machimbirike

+263719288500 (Whatsapp)

POSC0001_1.html

isoswitch.xml

Mapfunde Venon

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Oct 28, 2023, 1:38:28 PM10/28/23

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@SpringBootApplication
public class Demo4JposTermappApplication implements CommandLineRunner {

    public static void main(String[] args) {
        SpringApplication.run(Demo4JposTermappApplication.class, args);
    }

    @Override
    public void run(String... args) throws Exception {
        String rawMessage = """
                313331348020010002C000000300000008000000303030303031333036333030504F534330303031504F534330303030303030303030313030303030303031303434412C30303030303433342E432C30303030303030392E442C30303030303031462E452C30303030303043302E313541423A303030303A6170705F6D6170
                """;
        testConnection(rawMessage);
    }

    public void testConnection(String message) {

        ISOMsg m = new ISOMsg();
        try {
            GenericPackager pkg = new GenericPackager("file:packager/isoswitch.xml");

            Logger l = new Logger();
            l.addListener(new SimpleLogListener());
            pkg.setLogger(l, "");
            m.setPackager(pkg);

            byte[] arr = ISOUtil.hex2byte(message.replace(" ", "").trim());
            m.unpack(arr);
            m.dump(System.out, "");
            


        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

The first two 0s represent the header.


Venon Mapfunde(PMP,Msc Software Engineering,Bsc Computer Science & Mathematics)
Tel:+263 775 091 262
Email:taka...@gmail.com
Skype: venon.mapfunde

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Mark Salter

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Oct 29, 2023, 5:03:27 AM10/29/23

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You ate putting a header on your request, so I figure this interface needs one? Please confirm.

If that is right, then each direction will need the same, otherwise check the documentation of whatever is responding to make sure.

I think PostChannel may need a hint of the expected header size for the receive, but try to male sure right now. Try a call to setHeader on PostChannel passing a hex string of the expected header sizes you create the channel instance, then try the exchange again

--
Mark

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cap10mycap10

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Oct 30, 2023, 8:08:38 PM10/30/23

to jPOS Users

@Mark you are right, this is what you need to do on the channel:

private ISOMsg sendRequest(ISOMsg isoMsg) throws Exception {
    log.info("########################### Sending Messages: {}");
    try {
        Logger logger = new Logger();
        logger.addListener(new SimpleLogListener(System.out));

        

ISOChannel channel = new NACChannel("x.x.x.", yyyy, packager, ISOUtil.hex2byte("0"));

        ((LogSource) channel).setLogger(logger, "xml-server-9000");
        channel.connect();
        channel.send(isoMsg);
        

ISOMsg response = channel.receive();
        return response;

    } catch (IOException | ISOException ex) {

        if (ex instanceof SocketException) {
            log.info("########################### Issuer unavailable: {}", ex.getMessage());
        }
        log.info("########################### Failing to connect: {}", ex.getMessage());
        throw new IOException("Failed to connect");
    }
}

I should also point out this way of sending request is just to demonstrate how Jpos works, for production purposes you have to consider something else.

flavian machimbirike

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Oct 31, 2023, 2:00:43 AM10/31/23

to jpos-...@googlegroups.com, Mapfunde Venon

Thank you @Mapfunde Venon I managed to get the 1304 message to work with the above code.

Kind regards

Flavian

To view this discussion on the web visit https://groups.google.com/d/msgid/jpos-users/8cd2fe2f-b908-4d87-860e-83645cc33fc6n%40googlegroups.com.

flavian machimbirike

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Nov 6, 2023, 1:36:06 PM11/6/23

to jPOS Users

Hi Team

I am currently facing an issue with Field 48 where it is throwing the following error on my sale request (1200) from the point of sale terminal:
<iso-exception>
error packing field 48
</iso-exception>

Below is my packager NB: Field 48 has sub fields.

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE isopackager SYSTEM "genericpackager.dtd">
<isopackager>

<isofield
id="0"
length="4"
name="MESSAGE TYPE INDICATOR"
class="org.jpos.iso.IFA_NUMERIC"
/>
<isofield
id="1"
length="16"
name="BIT MAP"
class="org.jpos.iso.IFB_BITMAP"/>
<isofield
id="2"
length="19"
name="PAN - PRIMARY ACCOUNT NUMBER"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="3"
length="6"
name="PROCESSING CODE"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="4"
length="12"
name="AMOUNT, TRANSACTION"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="5"
length="12"
name="Amount, Reconciliation"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="6"
length="12"
name="Amount, Cardholder billing"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="7"
length="10"
name="TRANSMISSION DATE AND TIME"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="8"
length="8"
name="Amount, Cardholder billing fee"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="9"
length="8"
name="Conversion rate, Reconciliation"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="10"
length="8"
name="Conversion rate, Cardholder billing"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="11"
length="6"
name="SYSTEM TRACE AUDIT NUMBER"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="12"
length="12"
name="DATE TIME, LOCAL TRANSACTION YYMMDDhhmmss"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="13"
length="4"
name="Date, Effective"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="14"
length="4"
name="DATE, EXPIRATION YYMM"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="15"
length="6"
name="DATE, SETTLEMENT YYMMDD"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="16"
length="4"
name="Date, Conversion"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="17"
length="4"
name="Date, Capture"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="18"
length="4"
name="Merchant type"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="19"
length="3"
name="ACQUIRING INSTITUTION COUNTRY CODE"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="20"
length="3"
name="Country code, Primary account number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="21"
length="3"
name="Country code, Forwarding institution"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="22"
length="12"
name="POINT OF SERVICE ENTRY MODE"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="23"
length="3"
name="CARD SEQUENCE NUMBER"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="24"
length="3"
name="NETWORK INTERNATIONAL IDENTIFIEER"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="25"
length="4"
name="Message reason code"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="26"
length="4"
name="Card Acceptor Business Code"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="27"
length="1"
name="Approval code length"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="28"
length="6"
name="Date, Reconciliation"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="29"
length="3"
name="Reconciliation indicator"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="30"
length="24"
name="Amounts, original"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="31"
length="99"
name="Acquirer reference data"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="32"
length="11"
name="ACQUIRING INSTITUTION IDENT CODE"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="33"
length="11"
name="FORWARDING INSTITUTION IDENT CODE"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="34"
length="28"
name="Primary account number, extended"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="35"
length="37" name="TRACK 2 DATA"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="36"
length="104"
name="Track 3 data"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="37"
length="12"
name="RETRIEVAL REFERENCE NUMBER"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="38"
length="6"
name="Approval code"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="39"
length="3"
name="RESPONSE CODE"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="40"
length="3"
name="Service code"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="41"
length="8"
name="CARD ACCEPTOR TERMINAL IDENTIFICACION"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="42"
length="15"
name="Card acceptor identification code"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="43"
length="40"
name="CARD ACCEPTOR NAME/LOCATION"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="44"
length="99"
name="Additional response data"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="45"
length="76"
name="Track 1 data"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="46"
length="204"
name="Amounts, Fees"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="47"
length="999"
name="Additional data - national"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofieldpackager
id="48"
length="999"
name="Additional data - private"
class="org.jpos.iso.IFA_LLLCHAR"
packager="org.jpos.iso.packager.GenericSubFieldPackager">
<isofield
id="1"
length="19"
name="POS DATA"
class="org.jpos.iso.IF_CHAR"/>

<isofield
id="16"
length="9999"
name="Structured Data"
class="org.jpos.iso.IFA_LLLLCHAR"/>
</isofieldpackager>

<isofield
id="49"
length="3"
name="CURRENCY CODE, TRANSACTION"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="50"
length="3"
name="Currency code, Reconciliation"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="51"
length="3"
name="Currency code, Cardholder billing"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="52"
length="8"
name="PIN DATA"
class="org.jpos.iso.IFB_BINARY"/>
<isofield
id="53"
length="48"
name="Security related control information"
class="org.jpos.iso.IFA_LLBINARY"/>
<isofield
id="54"
length="120"
name="ADDITIONAL AMOUNTS"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="55"
length="999"
name="ICC Data"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="56"
length="35"
name="Original Data Elements"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="57"
length="3"
name="Authorization life cycle code"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="58"
length="11"
name="Authorizing agent institution Id Code"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="59"
length="999"
name=" Transport Data"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="60"
length="999"
name="Point of Service Device Type"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="61"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="62"
length="999"
name="Reserved for private use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="63"
length="999"
name="Reserved for private use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="64"
length="8"
name="Message authentication code field"
class="org.jpos.iso.IFA_BINARY"/>
<isofield
id="65"
length="8"
name="Reserved for ISO use"
class="org.jpos.iso.IFA_BINARY"/>
<isofield
id="66"
length="204"
name="Amounts, original fees"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="67"
length="2"
name="Extended payment data"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="68"
length="3"
name="Country code, receiving institution"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="69"
length="3"
name="Country code, settlement institution"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="70"
length="3"
name="NETWORK MANAGEMENT INFORMATION CODE"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="71"
length="8"
name="Message number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="72"
length="999"
name="Data record"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="73"
length="6"
name="Date, action"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="74"
length="10"
name="Credits, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="75"
length="10"
name="Credits, reversal number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="76"
length="10"
name="Debits, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="77"
length="10"
name="Debits, reversal number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="78"
length="10"
name="Transfer, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="79"
length="10"
name="Transfer, reversal number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="80"
length="10"
name="Inquiries, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="81"
length="10"
name="Authorizations, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="82"
length="10"
name="Inquiries, reversal number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="83"
length="10"
name="Payments, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="84"
length="10"
name="Payments, reversal number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="85"
length="10"
name="Fee collections, number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="86"
length="16"
name="Credits, amount"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="87"
length="16"
name="Credits, reversal amount"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="88"
length="16"
name="Debits, amount"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="89"
length="16"
name="Debits, reversal amount"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="90"
length="10"
name="Authorizations, reversal number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="91"
length="3"
name="Country code, transaction Dest. Inst."
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="92"
length="3"
name="Country code, transaction Orig. Inst."
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="93"
length="11"
name="Transaction Destination Institution ID Code"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="94"
length="11"
name="Transaction Originator Institution ID Code"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="95"
length="99"
name="Card issuer reference data"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="96"
length="999"
name="Key management data"
class="org.jpos.iso.IFA_LLLBINARY"/>
<isofield
id="97"
length="17"
name="Amount, Net reconciliation"
class="org.jpos.iso.IFA_AMOUNT"/>
<isofield
id="98"
length="25"
name="Payee"
class="org.jpos.iso.IF_CHAR"/>
<isofield
id="99"
length="11"
name="Settlement institution Id code"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="100"
length="11"
name="Receiving Institution ID Code"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="101"
length="17"
name="File name"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="102"
length="28"
name="ACCOUNT IDENTIFICATION 1"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="103"
length="28"
name="ACCOUNT IDENTIFICATION 2"
class="org.jpos.iso.IFA_LLNUM"/>
<isofield
id="104"
length="100"
name="Transaction description"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="105"
length="16"
name="Credits, Chargeback amount"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="106"
length="16"
name="Debits, Chargeback amount"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="107"
length="10"
name="Credits, Chargeback number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="108"
length="10"
name="Debits, Chargeback number"
class="org.jpos.iso.IFA_NUMERIC"/>
<isofield
id="109"
length="84"
name="Credits, Fee amounts"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="110"
length="84"
name="Debits, Fee amounts"
class="org.jpos.iso.IFA_LLCHAR"/>
<isofield
id="111"
length="999"
name="Reserved for ISO use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="112"
length="999"
name="Reserved for ISO use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="113"
length="999"
name="Reserved for ISO use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="114"
length="999"
name="Reserved for ISO use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="115"
length="999"
name="Reserved for ISO use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="116"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="117"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="118"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="119"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="120"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="121"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="122"
length="999"
name="Reserved for national use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="123"
length="999"
name="Reserved for private use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="124"
length="999"
name="Reserved for private use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="125"
length="999"
name="Reserved for private use"
class="org.jpos.iso.IFA_LLLCHAR"/>
<isofield
id="126"
length="999"
name="Reserved for private use"
class="org.jpos.iso.IFA_LLLCHAR"/>

<isofield
id="127"
length="99999"
name="RESERVED PRIVATE USE"
class="org.jpos.iso.IFA_LLLLLCHAR">
</isofield>

<isofield
id="128"
length="8"
name="Message authentication code field"
class="org.jpos.iso.IFB_BINARY"/>
</isopackager>

Below is my sale request:
public ISOMsg saleTransaction() throws Exception {
final ISOMsg isoMsg = new ISOMsg("1200");
isoMsg.setDirection(OUTGOING);
isoMsg.set(3, "000000");
isoMsg.set(4, "000000000280");
isoMsg.set(7, "1106022517");
isoMsg.set(11, "000013");
isoMsg.set(12, "231106102517");
isoMsg.set(22, "A10101513346");
isoMsg.set(23, "001");
isoMsg.set(24, "200");
isoMsg.set(29, "001");
isoMsg.set(35, "6079953000000474D33122260786909001");
isoMsg.set(41, "APOS0001");
isoMsg.set(42, "300041310020157");
isoMsg.set(49, "932");
isoMsg.set("48.001", "APOS0001000013");
isoMsg.set("48.016", "14GUID236b0348a73-877c-4311-ba7c-e34b5cb0256f210TermTranNr1600000617BatchNr13001217termInfoFwVersion215V2.0.0.20211115219termInfoBatChgTimes110218termInfoRomVersion226V1.1.1.202111150949 INTLv7220termInfoSecFwVersion226X990-V1.0.12(202111221449)220termInfoTotCtlsCount1216220termInfoBatteryLevel13 69218termInfoActiveNetw14WIFI217termInfoHwVersion217M550-104-XX-XXX-5212termInfoIMEI215860162049678698218termInfoAppVersion217vfmpos2.1.0-beta3219termInfoTotMagCount1218216termInfoSerialNr210V1E0653476217termInfoIpAddress1910.11.2.5216termInfoLocation244-17.768301,31.024467,26.800001,1699257556000217termInfoTermModel14X990220termInfoTotChipCount110221termInfoSysSvcVersion161.11.2218termInfoApiVersion2112.1.0-beta3218termInfoSvcVersion183.11.2.1217termInfoOsVersion157.1.2");
isoMsg.set(49, "932");
isoMsg.set(52, ISOUtil.hex2byte("B25CCEA90A659470"));
isoMsg.set(53, ISOUtil.hex2byte("A100203476E00003"));
String field55Value = "FF2081CA9F02060000000002809F03060000000000004F07A0000007790000820218009F360200B79F0702FFC09F2608F041D289899BCECD9F2701808E0E0000000000000000020102031F039F34030203009F1E0845303635333447369F0D05008834F8009F0E053070C800009F0F05008834F8009F10200FA501A301C0000000000000000000000F0100000000000000000000000000009F090200969F330364D0C89F1A0207169F350122950580800480005F2A0209329A032311069F4104000000039C01009F3704CBE68AE7";
isoMsg.set(55, ISOUtil.hex2byte(field55Value));
isoMsg.setPackager(packager);
return sendRequest(isoMsg);
}

And below is my sale log for the sale request:
<isomsg direction="outgoing">

<field id="0" value="1200"/>
<field id="3" value="000000"/>
<field id="4" value="000000000280"/>
<field id="7" value="1106022517"/>
<field id="11" value="000013"/>
<field id="12" value="231106102517"/>
<field id="22" value="A10101513346"/>
<field id="23" value="001"/>
<field id="24" value="200"/>
<field id="29" value="001"/>
<field id="35" value="6079953000000474D33122260786909001"/>
<field id="41" value="APOS0001"/>
<field id="42" value="300041310020157"/>
<isomsg id="48">
<field id="1" value="APOS0001000013"/>
<field id="16" value="14GUID236b0348a73-877c-4311-ba7c-e34b5cb0256f210TermTranNr1600000617BatchNr13001217termInfoFwVersion215V2.0.0.20211115219termInfoBatChgTimes110218termInfoRomVersion226V1.1.1.202111150949 INTLv7220termInfoSecFwVersion226X990-V1.0.12(202111221449)220termInfoTotCtlsCount1216220termInfoBatteryLevel13 69218termInfoActiveNetw14WIFI217termInfoHwVersion217M550-104-XX-XXX-5212termInfoIMEI215860162049678698218termInfoAppVersion217vfmpos2.1.0-beta3219termInfoTotMagCount1218216termInfoSerialNr210V1E0653476217termInfoIpAddress1910.11.2.5216termInfoLocation244-17.768301,31.024467,26.800001,1699257556000217termInfoTermModel14X990220termInfoTotChipCount110221termInfoSysSvcVersion161.11.2218termInfoApiVersion2112.1.0-beta3218termInfoSvcVersion183.11.2.1217termInfoOsVersion157.1.2"/>
</isomsg>
<field id="49" value="932"/>
<field id="52" value="B25CCEA90A659470" type="binary"/>
<field id="53" value="A100203476E00003" type="binary"/>
<field id="55" value="FF2081CA9F02060000000002809F03060000000000004F07A0000007790000820218009F360200B79F0702FFC09F2608F041D289899BCECD9F2701808E0E0000000000000000020102031F039F34030203009F1E0845303635333447369F0D05008834F8009F0E053070C800009F0F05008834F8009F10200FA501A301C0000000000000000000000F0100000000000000000000000000009F090200969F330364D0C89F1A0207169F350122950580800480005F2A0209329A032311069F4104000000039C01009F3704CBE68AE7" type="binary"/>
</isomsg>

Any help to resolve this will be grately appreciate. I have aligned the items in the packager to that of the termapp.iso documentation.

Kind regards

Flavian

Andrés Alcarraz

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Nov 6, 2023, 2:46:24 PM11/6/23

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Please, log the entire stack trace of an exception, not just its message, so you and us have more context.

Also, please send large chunks of code, like the packager configuration, as attachments and not inline. It makes the whole mail hard to read.

In addition, to make us easier to help you, please send a simple reproducible program, in this case you just need a small main that just packs the message.

Best regards.

Andrés Alcarraz

To view this discussion on the web visit https://groups.google.com/d/msgid/jpos-users/87de3ed6-bb7c-40eb-82b8-0ce5f5f76892n%40googlegroups.com.

flavian machimbirike

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Nov 6, 2023, 3:00:11 PM11/6/23

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Hi

Thank you for the quick response:

Below is the stacktrace:

<iso-exception>
error packing field 48

<iso-exception>
org.jpos.iso.IF_CHAR: Problem packing field -1
<nested-exception>
java.lang.ClassCastException: java.util.BitSet cannot be cast to java.lang.String
at org.jpos.iso.ISOStringFieldPackager.pack(ISOStringFieldPackager.java:143)
at org.jpos.iso.packager.GenericSubFieldPackager.pack(GenericSubFieldPackager.java:135)
at org.jpos.iso.ISOMsgFieldPackager.pack(ISOMsgFieldPackager.java:60)
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:176)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.sendRequest(HsmClientApplication.java:90)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.saleTransaction(HsmClientApplication.java:74)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.run(HsmClientApplication.java:46)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:344)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.main(HsmClientApplication.java:39)
</nested-exception>
org.jpos.iso.ISOException: org.jpos.iso.IF_CHAR: Problem packing field -1 (java.lang.ClassCastException: java.util.BitSet cannot be cast to java.lang.String)
at org.jpos.iso.ISOStringFieldPackager.pack(ISOStringFieldPackager.java:157)
at org.jpos.iso.packager.GenericSubFieldPackager.pack(GenericSubFieldPackager.java:135)
at org.jpos.iso.ISOMsgFieldPackager.pack(ISOMsgFieldPackager.java:60)
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:176)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.sendRequest(HsmClientApplication.java:90)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.saleTransaction(HsmClientApplication.java:74)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.run(HsmClientApplication.java:46)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:344)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.main(HsmClientApplication.java:39)
Nested:java.lang.ClassCastException: java.util.BitSet cannot be cast to java.lang.String
at org.jpos.iso.ISOStringFieldPackager.pack(ISOStringFieldPackager.java:143)
at org.jpos.iso.packager.GenericSubFieldPackager.pack(GenericSubFieldPackager.java:135)
at org.jpos.iso.ISOMsgFieldPackager.pack(ISOMsgFieldPackager.java:60)
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:176)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.sendRequest(HsmClientApplication.java:90)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.saleTransaction(HsmClientApplication.java:74)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.run(HsmClientApplication.java:46)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:344)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.main(HsmClientApplication.java:39)
</iso-exception>
org.jpos.iso.ISOException: error packing field 48 (org.jpos.iso.ISOException: org.jpos.iso.IF_CHAR: Problem packing field -1 (java.lang.ClassCastException: java.util.BitSet cannot be cast to java.lang.String))
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:185)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.sendRequest(HsmClientApplication.java:90)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.saleTransaction(HsmClientApplication.java:74)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.run(HsmClientApplication.java:46)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:344)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.main(HsmClientApplication.java:39)
Nested:org.jpos.iso.ISOException: org.jpos.iso.IF_CHAR: Problem packing field -1 (java.lang.ClassCastException: java.util.BitSet cannot be cast to java.lang.String)
at org.jpos.iso.ISOStringFieldPackager.pack(ISOStringFieldPackager.java:157)
at org.jpos.iso.packager.GenericSubFieldPackager.pack(GenericSubFieldPackager.java:135)
at org.jpos.iso.ISOMsgFieldPackager.pack(ISOMsgFieldPackager.java:60)
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:176)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.sendRequest(HsmClientApplication.java:90)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.saleTransaction(HsmClientApplication.java:74)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.run(HsmClientApplication.java:46)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:344)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.main(HsmClientApplication.java:39)
Nested:java.lang.ClassCastException: java.util.BitSet cannot be cast to java.lang.String
at org.jpos.iso.ISOStringFieldPackager.pack(ISOStringFieldPackager.java:143)
at org.jpos.iso.packager.GenericSubFieldPackager.pack(GenericSubFieldPackager.java:135)
at org.jpos.iso.ISOMsgFieldPackager.pack(ISOMsgFieldPackager.java:60)
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:176)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.sendRequest(HsmClientApplication.java:90)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.saleTransaction(HsmClientApplication.java:74)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.run(HsmClientApplication.java:46)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:344)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
at com.samsoftx.hsm.hsmclient.HsmClientApplication.main(HsmClientApplication.java:39)
</iso-exception>
</send>
</log>

Below is the main method:

package com.samsoftx.hsm.hsmclient;

import com.samsoftx.hsm.hsmclient.rest.JposController;
import lombok.extern.log4j.Log4j2;
import org.jpos.iso.ISOChannel;
import org.jpos.iso.ISOException;
import org.jpos.iso.ISOMsg;
import org.jpos.iso.ISOUtil;
import org.jpos.iso.channel.NACChannel;
import org.jpos.iso.packager.GenericPackager;
import org.jpos.iso.packager.PackagerWrapper;
import org.jpos.iso.packager.PostPackager;
import org.jpos.util.LogSource;
import org.jpos.util.Logger;
import org.jpos.util.SimpleLogListener;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import java.io.IOException;
import java.net.SocketException;

import static org.jpos.iso.ISOMsg.OUTGOING;

@SpringBootApplication
@Log4j2
public class HsmClientApplication implements CommandLineRunner {

//private final JposController jposController;
private final GenericPackager packager;

public HsmClientApplication(final JposController jposController) throws ISOException {
this.packager = new GenericPackager("file:packager/isotmp.xml");
// this.jposController = jposController;
}

public static void main(final String[] args) {
SpringApplication.run(HsmClientApplication.class, args);

}

@Override
public void run(String... args) throws Exception {

//jposController.test();
//jposController.launch();
saleTransaction();

private ISOMsg sendRequest(final ISOMsg isoMsg) throws Exception {

log.info("########################### Sending Messages: {}");
try {

final Logger logger = new Logger();
logger.addListener(new SimpleLogListener(System.out));

final ISOChannel channel = new NACChannel("#", 9305, packager, ISOUtil.hex2byte("0"));

((LogSource) channel).setLogger(logger, "xml-server-9000");
channel.connect();
channel.send(isoMsg);

final ISOMsg response = channel.receive();
return response;
} catch (final IOException | ISOException ex) {

To view this discussion on the web visit https://groups.google.com/d/msgid/jpos-users/e8b44fa7-f805-4921-bb3b-b275d7d4efd1%40gmail.com.

Mark Salter

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Nov 7, 2023, 1:55:34 AM11/7/23

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The code is trying g to build a bitmap for field 48 because you have not configured it not to. emitBitmap=false is needed in your configuration.

You also have a '9999' max length subfield inside a '999' wrapper, which might fail at some point and suggests a mistake reading the spec.
Your code is also setting Field 49 twice.

--
Mark

Sent from Proton Mail mobile

-------- Original Message --------

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flavian machimbirike

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Nov 7, 2023, 2:17:28 AM11/7/23

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Hi Mark

I have adjusted the code as follow and have removed the duplicated F49:

package com.samsoftx.hsm.hsmclient;

import com.samsoftx.hsm.hsmclient.rest.JposController;
import lombok.extern.log4j.Log4j2;
import org.jpos.iso.ISOChannel;
import org.jpos.iso.ISOException;
import org.jpos.iso.ISOMsg;
import org.jpos.iso.ISOUtil;
import org.jpos.iso.channel.NACChannel;
import org.jpos.iso.packager.GenericPackager;
import org.jpos.iso.packager.PackagerWrapper;
import org.jpos.iso.packager.PostPackager;
import org.jpos.util.LogSource;
import org.jpos.util.Logger;
import org.jpos.util.SimpleLogListener;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import java.io.IOException;
import java.net.SocketException;

import static org.jpos.iso.ISOMsg.OUTGOING;


@SpringBootApplication
@Log4j2
public class HsmClientApplication implements CommandLineRunner {

  //  private final JposController jposController;

        isoMsg.set(52,  ISOUtil.hex2byte("B25CCEA90A659470"));
        isoMsg.set(53,  ISOUtil.hex2byte("A100203476E00003"));
        String field55Value = "FF2081CA9F02060000000002809F03060000000000004F07A0000007790000820218009F360200B79F0702FFC09F2608F041D289899BCECD9F2701808E0E0000000000000000020102031F039F34030203009F1E0845303635333447369F0D05008834F8009F0E053070C800009F0F05008834F8009F10200FA501A301C0000000000000000000000F0100000000000000000000000000009F090200969F330364D0C89F1A0207169F350122950580800480005F2A0209329A032311069F4104000000039C01009F3704CBE68AE7";
        isoMsg.set(55,  ISOUtil.hex2byte(field55Value));
        isoMsg.setPackager(packager);
        return sendRequest(isoMsg);
    }

    private ISOMsg sendRequest(final ISOMsg isoMsg) throws Exception {

        log.info("########################### Sending Messages: {}");
        try {
            final Logger logger = new Logger();
            logger.addListener(new SimpleLogListener(System.out));

            // final ISOChannel channel = new NACChannel("197.211.198.153", 9305, new PostPackager(), null);
            //final ISOChannel channel = new NACChannel("197.211.198.153", 9305, new PostPackager(), ISOUtil.hex2byte("0"));
            final ISOChannel channel = new NACChannel("197.211.198.153", 9305, packager, ISOUtil.hex2byte("0"));



            ((LogSource) channel).setLogger(logger, "xml-server-9000");
            channel.connect();
            channel.send(isoMsg);
            final ISOMsg response = channel.receive();
            return response;
        } catch (final IOException | ISOException ex) {
            if (ex instanceof SocketException) {
                log.info("########################### Issuer unavailable: {}", ex.getMessage());
            }
            log.info("########################### Failing to connect: {}", ex.getMessage());
            throw new IOException("Failed to connect");
        }
    }
}

Below is the snippet from the packager: NB: I have also adjusted the lengths as per your recommendation.

<isofieldpackager
        id="48"
        length="9999"
        emitBitmap="false"

        name="Additional data - private"

        class="org.jpos.iso.IFA_LLLLCHAR"

        packager="org.jpos.iso.packager.GenericSubFieldPackager">
    <isofield
            id="1"
            length="19"

            name="POS DATA"
            class="org.jpos.iso.IF_CHAR"/>

    <isofield
            id="16"
            length="999"

            name="Structured Data"
            class="org.jpos.iso.IFA_LLLCHAR"/>
</isofieldpackager>

Upon running it again am getting the following error:

<send>

<iso-exception>
error packing field 48
<iso-exception>

java.lang.NullPointerException
<nested-exception>
java.lang.NullPointerException
at org.jpos.iso.packager.GenericSubFieldPackager.pack(GenericSubFieldPackager.java:147)

at org.jpos.iso.ISOMsgFieldPackager.pack(ISOMsgFieldPackager.java:60)
at org.jpos.iso.ISOBasePackager.pack(ISOBasePackager.java:176)
at org.jpos.iso.ISOMsg.pack(ISOMsg.java:467)
at org.jpos.iso.BaseChannel.pack(BaseChannel.java:979)
at org.jpos.iso.BaseChannel.send(BaseChannel.java:596)