Adapter module problem

Former Member · ‎07-14-2006

Hi gurus,

I'm very new to adapter module.

I tried with the howto guide and I develelop a really sample module just to check if I'm able to write the audit log.

The code is really simple:

/*

Created on Jul 11, 2006

*

To change the template for this generated file go to

Window>Preferences>Java>Code Generation>Code and Comments

*/

package it.elsag.xi.adapter.module;

import javax.ejb.CreateException;

import javax.ejb.SessionBean;

import javax.ejb.SessionContext;

import com.sap.aii.af.mp.module.*;

import com.sap.aii.af.ra.ms.api.*;

import com.sap.aii.af.service.auditlog.Audit;

import com.sap.aii.af.service.auditlog.AuditDirection;

import com.sap.aii.af.service.auditlog.AuditLogStatus;

import com.sap.aii.af.service.auditlog.AuditMessageKey;

/**

@ejbHome <{com.sap.aii.af.mp.module.ModuleHome}>
@ejbLocal <{com.sap.aii.af.mp.module.ModuleLocal}>
@ejbLocalHome <{com.sap.aii.af.mp.module.ModuleLocalHome}>
@ejbRemote <{com.sap.aii.af.mp.module.ModuleRemote}>
@stateless

*/

public class MyAdapterModule implements SessionBean, Module {

final String auditStr = "*** AFWJavaMap - ";

private SessionContext myContext;

private AuditMessageKey amk = null ;

private ModuleContext mc;

private Object obj = null; // Handler to get Principle data

private Message msg = null; // Handler to get Message object

public void ejbRemove() {

}

public void ejbActivate() {

}

public void ejbPassivate() {

}

public void setSessionContext(SessionContext context) {

myContext = context;

}

public void ejbCreate() throws CreateException {

}

public ModuleData process(

ModuleContext moduleContext,

ModuleData inputModuleData)

throws ModuleException {

obj = inputModuleData.getPrincipalData();

msg = (Message) obj;

if (msg.getMessageDirection() == MessageDirection.INBOUND)

amk = new AuditMessageKey(msg.getMessageId(),

AuditDirection.INBOUND);

else

amk = new AuditMessageKey(msg.getMessageId(),

AuditDirection.OUTBOUND);

Audit.addAuditLogEntry(amk, AuditLogStatus.SUCCESS,

"MyAdapterModule: Module called (mojitodaiquiri)");

return inputModuleData;

}

but when I try I get this error (from the visual admin):

[EXCEPTION]

com.sap.engine.services.ejb.exceptions.BaseTransactionRolledbackLocalException: Exception thrown in method process. The transaction is marked for rollback.

at com.sap.aii.af.mp.module.ModuleLocalLocalObjectImpl0.process(ModuleLocalLocalObjectImpl0.java:118)

at com.sap.aii.af.mp.ejb.ModuleProcessorBean.process(ModuleProcessorBean.java:252)

at com.sap.aii.af.mp.processor.ModuleProcessorLocalLocalObjectImpl0.process(ModuleProcessorLocalLocalObjectImpl0.java:103)

at com.sap.aii.af.listener.AFWListenerBean.onMessage(AFWListenerBean.java:243)

at com.sap.aii.af.listener.AFWListenerLocalObjectImpl0.onMessage(AFWListenerLocalObjectImpl0.java:103)

at com.sap.aii.af.ra.ms.impl.ServicesImpl.deliver(ServicesImpl.java:253)

at com.sap.aii.adapter.xi.ms.XIEventHandler.onDeliver(XIEventHandler.java:838)

at com.sap.aii.af.ra.ms.impl.core.queue.ReceiveConsumer.invokeHandler(ReceiveConsumer.java:351)

at com.sap.aii.af.ra.ms.impl.core.queue.ReceiveConsumer.onMessage(ReceiveConsumer.java:100)

at com.sap.aii.af.ra.ms.impl.core.queue.Queue.run(Queue.java:831)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

at java.security.AccessController.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)

Caused by: java.lang.NullPointerException

at it.elsag.xi.adapter.module.MyAdapterModule.process(MyAdapterModule.java:58)

at com.sap.aii.af.mp.module.ModuleLocalLocalObjectImpl0.process(ModuleLocalLocalObjectImpl0.java:103)

... 13 more

java.lang.NullPointerException