Java Mapping/UDF/ABAP mapping to capture payload

Question

Hi,
could you please provide me Java mapping code samples (or UDF code) to save payloads of a message based on Message ID
i have a synchronous scenario where i have payloads in sxmb_moni for request and response with different message IDs. So pelase let me know how to save those request and response payloads to a file.
it would be great if you provide the stpes to implement and java code samples....if it is possible with ABAP mapping also please let me know te steps.
Best Regards....SARAN

Answer 1

Try with this code
import com.sap.mw.jco.IFunctionTemplate;
import com.sap.mw.jco.IRepository;
import com.sap.mw.jco.JCO;
public class PayloadExtractor {
    // The MySAP.com system we gonna be using
    static final String SID = "SID";
    // The repository we will be using
   IRepository repository;
    JCO.Field msgkeyField;
    public PayloadExtractor() {
        try {
            System.out.println("*** Creating the Pool... ***");
            JCO.addClientPool(SID, 10, "001", "user", "pwd", "EN", "host", "00");
            repository = JCO.createRepository("RecoverRepository", SID);
        } catch (JCO.Exception ex) {
            System.out.println("RecoverXI Caught an exception: \n" + ex);
    // Retrieves and prints information about the remote system
    public void getPayload() {
        // A messageID from your XI/PI
        String key = "48CD01EB3D27021BE1008000C0A8477D";
        final String pipelineID = "CENTRAL";
        byte[] msgkey = key.getBytes();
        try {
            IFunctionTemplate ftemplate = repository.getFunctionTemplate("SXMB_READ_MESSAGE_VERSION_RAW");
            if (ftemplate != null) {
                System.out.println("*** Creating client and function... ***");
                JCO.Function function = ftemplate.getFunction();
                JCO.Client client = JCO.getClient(SID);
                JCO.Structure struct = function.getImportParameterList().getStructure("MESSAGEKEY");
                struct.setValue(key, "MSGID");
                struct.setValue(pipelineID, "PID");
                // SELECTION must be like this!
                function.getImportParameterList().getField("SELECTION").setValue("2");
                // This is the msg version number, where 000 is the first (Inbound); the last can be caught from the function output (see below).
                // Setting this strongly depends on what you want to get: basically before or after the mapping...
                function.getImportParameterList().getField("VERSION_REQUEST").setValue("000");
                System.out.println("*** Calling... ***");
                client.execute(function);
                JCO.Table tb = function.getExportParameterList().getTable("MESSAGEPAYLOAD");
                if (tb.getNumRows() > 0) {
                    // There could be multiple payloads (even if usually it's only one)
                    do {
                        String plstr = new String(tb.getField("PAYLOAD").getByteArray());
                        System.out.println(
                            "*** Payload found *** " + tb.getField("NAME").getString() + " *** BEGIN ***");
                        System.out.println(
                            "Message Last Version: "
                                + function.getExportParameterList().getField("MAXVERSION").getString());
                        System.out.println(plstr);
                        System.out.println(
                            "*** Payload found *** " + tb.getField("NAME").getString() + " ***  END  ***");
                    } while (tb.nextRow());
                } else {
                    System.out.println("*** No payload found! ***");
                // Release the client into the pool
                JCO.releaseClient(client);
            } else {
                System.out.println("Function SXMB_READ_MESSAGE_VERSION_RAW not found in backend system.");
        } catch (Exception ex) {
            System.out.println("Caught an exception: \n" + ex);
    protected void cleanUp() {
        System.out.println("*** Cleaning... ***");
        JCO.removeClientPool(SID);
    public static void main(String[] argv) {
        PayloadExtractor e = new PayloadExtractor();
        e.getPayload();
        e.cleanUp();
-Madhu