PI Global Variables

[Former Member]

I have been looking for ways to support global variables (across maps, not within a single map) and cannot find anything.

My scenario is a synchronous RFC out of R3, through PI, and out to a vendor's product lookup service...all synchronous. The issue is that I need to log values from the RFC request as well as values from the vendor response.

I can get the process working with a sync/async bridge in a BPM (the async part being to write out vendor response to the log file). What I need is some way to store RFC request values and map them into my log file too.

Unless there is some Global variable method that spans across an entire process, I figure I need to do something special in the BPM. Can I achieve this by creating a split/copy of my request message, sending one out to the vendor and holding the other in a BPM wait of some sort. Then when the response comes back, split/copy it also and let one copy respond to SAP and the other merge up with the waiting request? Or something like this?

Thanks for any suggestions.

Keith

[Former Member · Accepted solution]

Hi Keith,

and something like that inside your BPM is not a solution ?

             
(1)  -------------- (2)= ------------- (3)-------- (4)


(1) your BPM receiver the RFC Request
(2) your synchronous request/response to vendor
(3) a mapping with two inbound :
          - your RFC request
          - your Vendor response.
     and a one outbound (your merge message)
(4) You send your merge message

 

Mickael

Edited by: Mickael Huchet on Apr 22, 2008 6:48 PM

[Former Member · Accepted solution]

Mickael,

Does your recommendation take into account my synchronous reply to the RFC R/3 initiator? Do you propose needing a Sync/Async bridge?

Thanks!

Keith

[Former Member · Accepted solution]

Hi,

your requirement require BPM and also Sync/Async bridge.

Please reward points if it helps

Thanks

Vikranth

[ravi_raman2]

Keith..

Can you try creating your own global variables and adding them to the global container..then you can try and retrieve them in the runtime and write those with values to a log.......theoritically this sounds probable........and practically it might just work.....!!

http://help.sap.com/javadocs/pi/SP3/xpi/com/sap/aii/mappingtool/tf7/rt/GlobalContainer.html

Regards

Ravi Raman

[Former Member]

Hi Keith,

I think you can achieve your requirement using a combination of Lookup & BPM (Sync Async bridge) techniques. May be you can try the following;

Integration process design:

START
^^
ReceiveStep(Open SyncAsyncBridge) 
^^
Transformation (MultiMapping with lookup)
^^
SendStep(Send RFC Resp &Close SyncAsyncBridge)
^^
SendStep(Send Log message)
^^
STOP

Details:

Step1: Use Receive step to receive the sync RFC message and ope n S/A bridge.

Step2: In Mapping (Transformation step) use Mapping lookups (RFC/DB/SOAP) to get the Vendor response and in same mapping generate both the Log message and RFC response as output messages (Multi-Mapping)

Step3:Send RFC Response message and close S/A bridge

Step4:Send Log message

Hope this helps.

Regards,

Ananth