Need help to enable trace/logging for java debugging CRM 5.0 WebShop

Question

Dear experts,
I'm new to sap, and i'm working on CRM 5.0 WebShop J2ee application with nwdi.
I have to add a new functionnality, which has to call a custom FM in CRM. This FM has been tested and is OK.
I have read the 2 files SAP_ISA50_DevAndExtGuide.pdf and ISA50_DevAndExtTuts_v1_0.pdf which have explain to me the process flow and organization of the framework.
By helping me with the tutorials, I wrote all the files for my functionnality, from the jsp with the form, to the custom business backend with the call of the FM with parameters and JCo connection. (+ custom BOM, custom BO, BE interface, BE CRM implementation)
Everything builds without error, and I deploy the application on my test env.
Then I go to my webapp, I call the custom jsp with form, I put values, then I validate the form, but my FM is not called, and I don't know where is the problem, because I can't see a trace of the process flow, to know where is the error.
By searching in this forum I found 2 notes that explain how to activate debug trace for all the application, one note for systems before SP11 and another for systems with SP11 and higher. But I don't know how to see the patchlevel of the system (I went to system information of the j2ee server and the on ly thing I can notice is below the server0 properties : Kernel Version:  7.00 PatchLevel.
In these notes I read about Visual Administrator : I found this directly on the server with remote desktop, but the progress bar at the bottom of the window don't arrives to 100% and I can't see the properties and values of the parameters for the Log.
I went to XCM too, and set appinfo and logfiledownload to true, then went to Logging into e-commerce administration console : in the Log configuration tab, I can create new configurations but the effective severity automatically sets to error, even if I set All or Debug manually ; in the session log tab, i tried to launch the application, then start log, then validate my form, then stop log, but I can't find anything about the trace of the process flow in the generated file.
Please help, I have to finish this for end of week and I'm alone ...
PS I'm french, and don't speak very well English please excuse me.
Thank you very much.
J. Lag.

Answer 1

Hi
For logs follow this note no[Creation of logs for B2B and B2C Release 5.0|https://service.sap.com/sap/support/notes/1090753]
Follow this code for calling custom Function Module
1) ZBOM.java
public class ZBOM extends DefaultBusinessObjectManager implements BOManager, BackendAware {
public static final String ZCUSTOM_BOM = "ZCUSTOM-BOM";
private ZFunction func;
public ZBOM() { }
public ZFunction getFUNC() {
  if (func== null) {
   func= new ZFunction();
   assignBackendObjectManager(func);  }
  return func; }
public void release() { }
2) ZFUNCTION.java
public class ZFunction extends BOBase implements BackendAware {
private ZInterface backendInterface;
private BackendObjectManager bem;
private ZInterface getInterface() {
  if (backendInterface == null) {
   try {
    backendInterface = (ZInterface) bem.createBackendBusinessObject("ZCustomBO");
   } catch (BackendException e) {
  return backendInterface;
public void setBackendObjectManager(BackendObjectManager bem) {
  this.bem = bem;
public String getCustomFunc(String value) {
  try {
   return getInterface().getIncotermListvalue) ;
  } catch (RuntimeException e) { return ""; }
3)ZINTERFACE.java
public interface ZInterface extends BackendBusinessObject {
     public  String getCustomFunc(String value);
4) ZBACKEND.java
public class ZBackend extends BackendBusinessObjectBaseSAP implements ZInterface {
     String exportvalue="";
     public String getCustomFunc(String value) {
          try {
               Function func =getDefaultJCoConnection().getJCoFunction("Z_CUSTOM_FUNCTION_MODULE");
               func.getImportParameterList().getField("IMPORTPARAMETER").setValue(value);
               getDefaultJCoConnection().execute(func);
               exportvalue = func.getExportParameterList().getString("IMPORTPARAMETER");
          } catch (Exception e) {
               return exportvalue ;
5) WEB_INF/xcm/customer/modification/bom-config.xml
<BusinessObjectManager name="ZCUSTOM-BOM" className="com.sap.isa.custom.ZBOM"/>
6) WEB_INF/xcm/customer/modification/bom-config.xml
<config isa:extends="../config[@id='crmdefault']">          
   <businessObject type="ZCustomBO"
                name="ZCustomBO"
                className="com.sap.isa.custom.ZBackend"
                connectionFactoryName="JCO"
                defaultConnectionName="ISAStateless"/>           
</config>
Regards,
[Sateesh Chandra|http://sateeshchandrach.googlepages.com/isa]