Problem while unpacking ISO message

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Gaurav Kumar

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Nov 7, 2016, 12:29:02 PM11/7/16

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Dear all,

I am using following code :

package com.canvasm.fi.tests.gaurav;

import org.jpos.iso.ISOException;

import org.jpos.iso.ISOMsg;

import org.jpos.iso.packager.GenericPackager;

import com.canvasm.fi.utils.ByteUtil;

public class UnpackISOMessage {

public static void main(String[] args) {

UnpackISOMessage iso = new UnpackISOMessage();

try {

ISOMsg isoMsg = iso.parseISOMessage();

iso.printISOMessage(isoMsg);

} catch (Exception e) {

e.printStackTrace();

}

public ISOMsg parseISOMessage() throws Exception {

//String message = "02003220000000808000000010000000001500120604120000000112340001840";

//String message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

String message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

System.out.printf("Message = %s%n", message);

byte[] bb= message.getBytes();

StringBuffer sb = new StringBuffer();

for (int i = 0; i < bb.length; i++) {

sb.append(ByteUtil.byteToHex(bb[i]));

}

message=sb.toString();

try {

GenericPackager packager = new GenericPackager(UnpackISOMessage.class.getResource("/fields.xml").getFile());

ISOMsg isoMsg = new ISOMsg();

isoMsg.setPackager(packager);

isoMsg.unpack(message.getBytes());

return isoMsg;

} catch (ISOException e) {

throw new Exception(e);

}

public void printISOMessage(ISOMsg isoMsg) {

try {

System.out.printf("MTI = %s%n", isoMsg.getMTI());

for (int i = 1; i <= isoMsg.getMaxField(); i++) {

if (isoMsg.hasField(i)) {

System.out.printf("Field (%s) = %s%n", i, isoMsg.getString(i));

}

} catch (ISOException e) {

e.printStackTrace();

}

but when I am running it gives me this

Message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

java.lang.Exception: org.jpos.iso.ISOException: org.jpos.iso.IFA_LLLCHAR: Problem unpacking field 36 (org.jpos.iso.ISOException: Field length 303 too long. Max: 104) unpacking field=36, consumed=126

at com.canvasm.fi.tests.gaurav.UnpackISOMessage.parseISOMessage(UnpackISOMessage.java:40)

at com.canvasm.fi.tests.gaurav.UnpackISOMessage.main(UnpackISOMessage.java:13)

Caused by: org.jpos.iso.ISOException: org.jpos.iso.IFA_LLLCHAR: Problem unpacking field 36 (org.jpos.iso.ISOException: Field length 303 too long. Max: 104) unpacking field=36, consumed=126

at org.jpos.iso.ISOBasePackager.unpack(ISOBasePackager.java:268)

at org.jpos.iso.ISOMsg.unpack(ISOMsg.java:454)

at com.canvasm.fi.tests.gaurav.UnpackISOMessage.parseISOMessage(UnpackISOMessage.java:37)

... 1 more

fields.xml is as follows :

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<!DOCTYPE isopackager SYSTEM "genericpackager.dtd"><isopackager>

</isopackager>

Please help. I have tried a lot of things but unable to fix this. I am new to this group so please consider my mistakes while describing the problem.

chhil

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Nov 7, 2016, 12:46:44 PM11/7/16

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Try this 

import org.jpos.iso.ISOException;
import org.jpos.iso.ISOMsg;
import org.jpos.iso.ISOUtil;
import org.jpos.iso.packager.GenericPackager;
import org.jpos.util.Logger;
import org.jpos.util.SimpleLogListener;

public class Test {

public static void main(String[] args)

{

        String message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

        Logger l = new Logger();
        l.addListener(new SimpleLogListener());
        ISOMsg m = new ISOMsg();
        GenericPackager p;
        try {
            p = new GenericPackager("./fields.xml");
            m.setPackager(p);
            m.unpack(ISOUtil.hex2byte(message)); // You need to convert the hex string to bytes
            m.pack();
            m.dump(System.out, "");
        }
        catch (ISOException e) {

            e.printStackTrace();
            m.dump(System.out, "");
        }

    }

}

Output (I hope you are using a test pan)


<isomsg direction="none">
  <!-- org.jpos.iso.packager.GenericPackager[fields.xml] -->
  <field id="0" value="0200"/>
  <field id="2" value="5061071022366023724"/>
  <field id="3" value="402010"/>
  <field id="4" value="000001500000"/>
  <field id="7" value="0909155304"/>
  <field id="11" value="     1"/>
  <field id="12" value="165304"/>
  <field id="13" value="0909"/>
  <field id="14" value="1901"/>
  <field id="18" value="6011"/>
  <field id="22" value="051"/>
  <field id="23" value="001"/>
  <field id="25" value="00"/>
  <field id="26" value="12"/>
  <field id="28" value="D00000000"/>
  <field id="32" value="506107"/>
  <field id="35" value="00000000000000000000000000000000"/>
  <field id="37" value="203900000008"/>
  <field id="40" value="601"/>
  <field id="41" value="10505237"/>
  <field id="42" value="EBN000000005231"/>
  <field id="43" value="ENG RV RUMUOKORO       RV           RVNG"/>
  <field id="49" value="566"/>
  <field id="52" value="3030303030303030"/>
  <field id="55" value="9F260836228FAB86D9E3BB9F2701409F10200FA501620200060000000000000000000F01AAAAAAAAAAAAAAAAAAAAAAAAAAAA9F3704582E1B339F36020241950542802400009A031609309C01009F02060000000000155F2A020949820258009F1A020792"/>
  <field id="98" value="9037080370803708037084147"/>
  <field id="100" value="903708"/>
  <field id="103" value="5251036513"/>
  <field id="123" value="511201513344002"/>
  <field id="128" value="0000000000000000" type="binary"/>
</isomsg>

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Mark Salter

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Nov 8, 2016, 1:46:43 AM11/8/16

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On 07/11/16 17:29, Gaurav Kumar wrote:
> //String message =
> "02003220000000808000000010000000001500120604120000000112340001840";
> //String message =
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
>
>
String message =
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

From
>
character hexadecimal..

> byte[] bb= message.getBytes();
...To bytes...
> sb.append(ByteUtil.byteToHex(bb[i]));
... and then back to character hex ...

> } message=sb.toString();
Then to a String...

> ISOMsg isoMsg = new ISOMsg(); isoMsg.setPackager(packager);
> isoMsg.unpack(message.getBytes());

and then back to bytes, why?

My suggestion - although Chhil has revised your test code - is to start
at the top,
select your Packager based upon the documented structure in the message
specification (and later the same for Channel selection) matching field
by field; ad a Logger to the Packager to see the fields being broken
down in the log.

--
Mark

Gaurav Kumar

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Nov 8, 2016, 4:15:44 AM11/8/16

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Dear Chhil,

Thanks a lot lot lot for your help. I am able to parse it now :)

Gaurav Kumar

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Nov 8, 2016, 4:17:30 AM11/8/16

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Thanks Mark for the guidance.

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