SAP CP-IS [ SAP HCI ] Looping Process Call in detail

[Sriprasadsbhat]

Introduction:

You might have come across the scenario where you want to set the retry for SOAP adapter or you want to loop some set of steps till some condition is met,so here is the solution for that is  "Looping Process Call".

More about Looping Process Call:

If you are having programming language experience ( at least basics ) its very easy to correlate with concept of While(Condition) {  perform some action } loop.

while ( condition )

{



 Process Steps in Local Integration Process



}

Instead of some code here we have Location Integration Sub Process .The sub process will run as long as the loop condition is fulfilled.

Looping Process Call can be added to Integration Process by pulling Process Call step from Palette and then selecting Switch to Looping Process.



Lets take few scenarios where we can leverage above steps

Scenario 1: 

Process the Compound Employee Data in batches using Looping Process.



1.Timer Event: To schedule the interface deployment.

2.Content Modifier: To have some data and some headers.

3.Looping Process Call: Call the Local Integration Process till Condition specified is true.



<1> Name of the Local Integration Process that needs to be called.

<2> Expression Type [ XML based or non XML based (Header Property )]

<3> SAP defined property which will tell whether Query has more records or not.

         Format: ${property.SAP_SuccessFactorsHasMoreRecords.<RECEIVER_SYS_NAME>.

                                      <RECEIVER_CHANNEL_NAME>}

<4>Max No of iterations to be mentioned to avoid infinite loops.

4.External Call: Call to SuccessFactors systems which will give Receiver System Name                                                 and Channel Name.



5. Message Mapping: Message Mapping to convert from Compound Employee Structure to                                                    Custom Structure.

6. Converter: To convert from XML to CSV format.

7. Channel: SFTP Channel to send the converted data to SFTP server.

Advantage of using Looping Process in above Scenario:

If you take an example of SuccessFactors system having employee data more 25 to 30K ,post your query step if converter and message mapping will receive all data together causing heap memory issue.If you use Looping process data will be sent to mapping and further step chunk by chunk( based on Page size mentioned in SF Channel ) without  putting complete load of data into Mapping Step and converter in one shot.

Scenario 2:

To set the manual retry in SOAP channel.



<1> Expression Type: Set the Expression Type as XML

<2> Condition Expression: Enter the condition till the condition becomes false.In our case                       local integration process to be called whenever we receive the Error Response from                           SOAP call inside the Local Integration process.

<3>Max No of iterations: Enter value for how many times call to be retried in the case of                           SOAP call failure.In our case we need to set the retry value of 5 times in case of SOAP                       call failure to target system.

Scenario 3:

Scenario where you have a  Adhoc Report scheduled in SuccessFactors using SAP HCI and you need to pull the data only after the Job is finished and you need to loop the process till JobStatus is running.



<1> Condition Expression: Local Integration Process Call will be looped till jobstatus is                                  running.

Conclusion:

Very useful step to handle requirements where we need to perform some task in looping manner.

References:

[1] Looping Process:

SAP HELP- Looping Process Call

Regards,

Sriprasad Shivaram Bhat