Directory Watcher Path

I'm trying to use a WMI Event Watcher Task as a directory watcher. I know it is available from Konesans at http://www.sqlis.com/23.aspx but they don't feel obliged to make this open source yet. I definitely appreciate the contribution of the binary to the community.

I'm very interested in understanding how the event handler gets the path of the file that caused the event. I added a Script Task to the Event Handler tab and it fires as expected when I create a new file in the directory. I can retrieve the value of the SourceName which is just the name of my Event Watcher Task. I can't find documentation on an object model that is exposed through SSIS that would reveal the name or path of the file, although it's clear this information is available in direct WMI queries from code or a WSH script.

My only guess is that you need to do a workaround in Script (or a custom module) by querying the directory for the most recent file (or list of files compared to a list of processed files) rather than a synchronous feed of the path directly into the SSIS event handler. Ideally, you'd like to get one event per new file created, although this might not be deterministic with the way the OS fires these events and SSIS responds to them. So at the end of the day, querying the directory for recently created files may be the only reliable way of getting the (list of) new files.

I know that this can take hours and hours to figure out since you really need to understand how WMI interacts with SSIS but I would be indebted if you can shed some light on this for me and the community.


Thanks,
Norm