Need help with grouping individ files together

Currently, I have a package that receives a file from our SAP system and then takes certain fields from that SAP file and then creates a separate flat file from it. I then look for the current system date/time. The flat file is then placed (not ftp’d) onto a Windows fileshare directory and renamed with the current system date/time as part of the filename. A separate ftp system then comes to that directory to pick up the file and send the flat file to the customer. Yesterday, there was a massive update done in the SAP system, which sent to me many, many files, which resulted in me writing to the Windows directory many, many INDIVIDUAL files renamed with the same system date/time. My package processed them fine, but the influx of files choked the separate ftp system.

Issue: Currently, the package is pretty much set up to evaluate a SAP file to see if the contents should be sent to the customer, if approved, run the SAP file through the package, write the resulting flat file (not ftp) to the directory, and then start over and evaluate the next individual SAP file in line, and on and on. I have to somehow come up with a way to group multiple files that come to me within the same time period as one big file. Append files with the same date/time stamp together. See below:

INSTEAD of me writing to the Windows directory this:

(files are renamed with SAP followed by the unique SAP file (IDOC) number, followed by the system date/time stamp, followed by a .rdy extension)


I need to have:

BIGSAPFile_200604271000.grp (first three files appended to each other)
BIGSAPFile_200605311000.grp (4th file being its own separate file because date/time stamp is different)

SAP_4444444_200604271000.rdy (Holding on to orig filename for reference purpose)
SAP_5555555_200604271000.rdy(Holding on to orig filename for reference purpose)
SAP_6666666_200604271000.rdy(Holding on to orig filename for reference purpose)
SAP_7777777_200605311000.rdy(Holding on to orig filename for reference purpose)

After all files are written to the directory, can I perhaps tell my package to run a Windows batch program to group all individual files with the same date/time extension together? Is that a good idea or can you suggest something else for me to place in my code to handle this?

Thank you very much for helping me with this.

You could have the first set of files written to a different directory or named with a different extension like “.notrdy” or “.stg”.

Write a simple java service to get a list of the files in the new directory or with the new extension, concatenate them together and then write them to the directory you are using now with the “.rdy” extension.