Is there any dummy adapter?

My current infrastructure environment doesn’t permit me to use DB2 adapters, so I ended up making a generic pipeline component built over ADO.NET framework.   The pipeline component provides certain database properties based on which it builds up a message (in fact it overwrites the original message).  But my problem is I have to setup a dummy file location to fetch a dummy xml message and then when the message enters the pipeline, my component will build the actual message and overwrite the message part.  everything works fine.  my question now is:

Is there any dummy adapter that I can use which which simply is responsible for scheduling and does not poll a file location or database like adapters do.  i just need it to send a dummy xml message which i specify.  basically i wish to use the adapter only for controlling when the pipeline should execute. An idea I though was to write an adapter myself, but dont know how complicated it would be.

I know this is a weird requirement, but any kind of help will be appreciated.