JCo Connection / RFC in Pricing Userexit

Question

Hi Experts,
Need your help: I have a requirement to make a RFC call in IPC Pricing Userexit.  First I made a simple test java class to make RFC call and run it locally without any problem. then I copy the same code to the Userexit, but it failed on the 1st statment JCO.createClient(.....).  Do I need to add a different JAR file to make JCo Connection work in the Userexit? Any advise or documentation?.
Thanks, Jin
Here is the error message:
Message: document not existing
--> com.sap.spe.document.rfc.DocIllegalArgumentException: document 49149C3E59925857E10000000A02901D not existing
at com.sap.spe.document.rfc.DocHandlerAdapter.appendProtocolLine(I[Ljava/lang/Object;)V(DocHandlerAdapter.java:123)
at com.sap.spe.document.rfc.GetPricingDocumentInfo.handleDocRequest()V(GetPricingDocumentInfo.java:73)
at com.sap.spe.document.rfc.DocHandlerAdapter.handleRequest()V(DocHandlerAdapter.java:72)
at com.sap.spe.base.util.jco.HandlerAdapter.handleRequest(Lcom/sap/vmc/RFCContainer/Call;)V(HandlerAdapter.java:103)
at com.sap.vmc.remserver.RFCDispatcher.privHandleRequest(Lcom/sap/conn/jco/JCoFunction;)V(RFCDispatcher.java:895)
at com.sap.vmc.remserver.RFCDispatcher.handleRequest(Lcom/sap/conn/jco/JCoFunction;)V(RFCDispatcher.java:673)
at com.sap.conn.jco.rt.JCoServer.dispatchRequest(Lcom/sap/conn/jco/rt/AbapFunction;)V(JCoServer.java:1605)
at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.dispatchRequest(Lcom/sap/conn/jco/rt/JCoServer;Ljava/lang/String;)V(MiddlewareJavaRfc.java:2387)
at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.listen(Lcom/sap/conn/jco/rt/JCoServer;Ljava/lang/String;)V(MiddlewareJavaRfc.java:1694)
at com.sap.conn.jco.rt.JCoServer.listen()V(JCoServer.java:1375)
at com.sap.conn.jco.rt.JCoServer.run()V(JCoServer.java:1299)
at com.sap.vmc.remserver.RfcServer.run()V(RfcServer.java:386)
at java.lang.Thread.startup(Z)V(Thr
Thanks, Jin

Answer 1

Hello Jin,
IPC does make calls to CRM . To do so it maintains a JCo connection. We got to leverage this connection object and make calls to our RFC. We can use the get_current_connection(); from connection_factory.
import com.sap.mw.jco.JCO;
import com.sap.sce.engine.ddb_inst;
import com.sap.sxe.db.*;
import com.sap.sxe.db.imp.rfc.*;
import com.sap.mw.jco.IFunctionTemplate;
import com.sap.mw.jco.IRepository;
// For the default connection
JCO.Client crmJCO = null;
try{
/ RFC and JCO connection to CRM
     connRFC cRFC = (connRFC)connection_factory.get_current_connection();
     crmJCO = cRFC.getIdleConnection();
}catch(Exception e){
     log_api.log_write_msg("LOG1", "LOG2",1,
       "Error establishing JCO connection to CRM: "+ e);
// Now for the BAPI (RFC calls)
try{
     IRepository repository = JCO.createRepository
                           ("<my BAPI RFC module>", crmJCO);
     IFunctionTemplate ftemplate = repository.getFunctionTemplate
                          ("<my BAPI RFC module>");
     JCO.Function bapiFunc= new JCO.Function(ftemplate);
// Set your IMPORT, EXPORT, TABLE parameters here
// Call the JCo function
     crmJCO.execute(bapiFunc);
// Process the output.
}catch(Exception e){
     log_api.log_write_msg("LOG3", "LOG4",1,
       "Error calling BAPI "+ e);
/// DO NOT FORGET TO CLOSE ***+++ MUST DO +++***
}finally{
     if(crmJCO != null)
          JCO.releaseClient(crmJCO);
Hence this is using standard connection, no need for any additional jars.
Easwar Ram
http://www.parxlns.com