Regarding RFC to RFC to FILE

Question

Hi,
  I am Doing RFC to RFC to FILE. I want to execute RFC to RFC and I want to get RFC response to FILE.
1)Do I need to Define BPM for theScenario.
2) Should I configure Sync- Async Bridge for the above scenario.
2)For RFC's we do not ceate any Interfaces, then for RFC should I define Abstract Message Intergaces to use in BPM.
3) In order to get the RFC response to FILE, Shd I define Mapping between RFC response and File.then what would be the Interface Mapping?
Regards,
Varun

Answer 1

Hi Varun,
Sync/async communication enables a synchronous sender system to communicate with a receiver system that cannot process synchronous messages.
The central component of sync/async communication is the sync/async bridge, which enables the Integration Server to receive synchronous messages from a sender and send them to a receiver as asynchronous messages. Conversely, it can send the asynchronous response from the receiver back to the sender as a synchronous response.
To do this, you define an integration process, which is started as soon as a synchronous message is received from the sender system. The process uses a special receive step to open the sync/async bridge, sends the received message to the receiver system asynchronously, and waits for the asynchronous response to arrive from the receiver.
The Business Process Engine receives the asynchronous response from the receiver, correlates it with the corresponding query, and activates the waiting process, which then sends the response back to the sender synchronously.
1)Do I need to Define BPM for theScenario.
Yes
2) Should I configure Sync- Async Bridge for the above scenario.
Yes
2)For RFC's we do not ceate any Interfaces, then for RFC should I define Abstract Message Intergaces to use in BPM.
Just import ur RFC and use it.
3) In order to get the RFC response to FILE, Shd I define Mapping between RFC response and File.then what would be the Interface Mapping?
Yes.Interface mapping what ever u had done select that.
Procedure:
SyncReceive – To Receive the payload synchronously from HTTPRequestInt interface
syncSend – To Send the request payload Asynchronously from BPM to the File system
syncReceive – To receive the response payload Asynchronously from Legacy File system to BPM
SyncSend – To Send the response Synchronously from BPM to LegacySystem
Refer this blog
Bridging the Sync-Async bridge with Fork (XI)
Demonstrating Use of Synchronous-Asynchronous Bridge to Integrate Synchronous and Asynchronous systems using ccBPM in SAP Xi
Also go through these links:
http://help.sap.com/saphelp_nw04/helpdata/en/83/d2a84028c9e469e10000000a1550b0/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c4/dc06418752ef6fe10000000a1550b0/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/f9/66bf40ad090366e10000000a1550b0/RN_XI_DE_neu.pdf
Regards,
Vinod.