Adapter Development for Dynamic EOIO Queue

Hello All

I have developed the module to achieve Dynamic EOIO Queue.

I have deployed the module.

I am getting error = "An error occurred while processing message: 8b644171-fa18-4e01-1775-a4069728c0c3. The detailed error (if any): com.sap.aii.adapter.jms.api.channel.filter.MessageFilterException: while trying to invoke the method org.w3c.dom.Element.getChildNodes() of a null object loaded from local variable Elmnt1: NullPointerException: while trying to invoke the method org.w3c.dom.Element.getChildNodes() of a null object loaded from local variable 'Elmnt1' at com.sap.aii.adapter.jms.core.channel.filter.SendToModuleProcessorFilter.filter(SendToModuleProcessorFilter.java:95) ..."

Code

com.sap.adaptermodule;

java.rmi.RemoteException;

javax.ejb.EJBException;

javax.ejb.SessionBean;

javax.ejb.SessionContext;

javax.ejb.TimedObject;

javax.ejb.Timer;

org.w3c.dom.Document;

org.w3c.dom.Node;

org.w3c.dom.NodeList;

org.w3c.dom.Element;

java.io.InputStream;

javax.xml.parsers.DocumentBuilder;

javax.xml.parsers.DocumentBuilderFactory;

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

com.sap.engine.interfaces.messaging.api.*;

public class DynamicEOIOBean implements SessionBean, TimedObject
{
      static final String c_param1 = "queuePrefix"; 
      static final String c_param2 = "Xmlnode";

      private static final long serialVersionUID=100L;

      /* (non-Javadoc)

       * @see javax.ejb.SessionBean#ejbActivate()

       */

      public void ejbActivate() throws EJBException, RemoteException

     {

            // TODO Auto-generated method stub

     }

      /* (non-Javadoc)

       * @see javax.ejb.SessionBean#ejbPassivate()

       */

      public void ejbPassivate() throws EJBException, RemoteException {

            // TODO Auto-generated method stub

      }

      /* (non-Javadoc)

       * @see javax.ejb.SessionBean#ejbRemove()

       */

      public void ejbRemove() throws EJBException, RemoteException {

            // TODO Auto-generated method stub

      }

      /* (non-Javadoc)

       * @see javax.ejb.SessionBean#setSessionContext(javax.ejb.SessionContext)

       */

      public void setSessionContext(SessionContext arg0) throws EJBException,

                  RemoteException {

            // TODO Auto-generated method stub

      }

      /* (non-Javadoc)

       * @see javax.ejb.TimedObject#ejbTimeout(javax.ejb.Timer)

       */

      public void ejbTimeout(Timer arg0) {

            // TODO Auto-generated method stub

      }

      public void ejbCreate() throws javax.ejb.CreateException
      {
      }

public ModuleData process(ModuleContext moduleContext, ModuleData inputModuleData)throws

ModuleException
{
try
{

  String param1 = moduleContext.getContextData(c_param1);
  String param2 = moduleContext.getContextData(c_param2);

  Message msg = (Message) inputModuleData.getPrincipalData();

  Payload payload = msg.getDocument();

  InputStream inps = (InputStream) payload.getInputStream();

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

DocumentBuilder db = dbf.newDocumentBuilder();

Document doc = db.parse(inps);
doc.getDocumentElement().normalize();

NodeList nodeLst1 = doc.getElementsByTagName(param1);

NodeList nodeLst2 = doc.getElementsByTagName(param2);

Element Elmnt1 = (Element) nodeLst1.item(0);

Element Elmnt2 = (Element) nodeLst2.item(0);

NodeList ndLst1 = Elmnt1.getChildNodes();

NodeList ndLst2 = Elmnt2.getChildNodes();

String queueId;

if (ndLst1.item(0) != null)

      queueId = ndLst1.item(0).getNodeValue().concat(ndLst2.item(0).getNodeValue());

else

      queueId = msg.getSequenceId();

msg.setSequenceId(queueId);
inputModuleData.setPrincipalData(msg);

return inputModuleData;

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

ModuleException me = new ModuleException("Unable to create Queue", e);

throw me;

}

}

}

Please help to resolve what need to change in code.

Thanks

Dheeraj Kumar