Hi Kyu
I would do it by defining a custom exit point on the right class/method
making the file read or write. A single exit point (without split) should
be enough and you can collect additional information such as filename as a
snapshot data
https://docs.appdynamics.com/display/PRO42/Configure+Custom+Exit+Points
You would see the icon on the flow map
Or you could go with a Data Collector:
https://docs.appdynamics.com/display/PRO42/Collecting+Application+Data
You could search for a specific filename but only for BTs with a snapshot
So it all depends on what you need.
Best
JB
I would do it by defining a custom exit point on the right class/method
making the file read or write. A single exit point (without split) should
be enough and you can collect additional information such as filename as a
snapshot data
https://docs.appdynamics.com/display/PRO42/Configure+Custom+Exit+Points
You would see the icon on the flow map
Or you could go with a Data Collector:
https://docs.appdynamics.com/display/PRO42/Collecting+Application+Data
You could search for a specific filename but only for BTs with a snapshot
So it all depends on what you need.
Best
JB