How to Read the File name and File size of a Sender File attachment in PI

Hi,

We have a requirement of extracting the File Name and File size of an attachment which is picked up by the Sender File Adapter.The Sender File is picked up as an attachment through the Sender File Adapter. I need the File name and File size of the attachment.These two details are to be sent to the Target System.

Kindly suggest the logic as to how to achieve the same in the mapping.Is this possible through a UDF in the mapping?

Thanks,

Soundarya