The most exciting discovery of the day award goes to Sweepers.
And the most straightforward “in the wild” dissection of it, goes to CodeLevy.

Basically, and in my cases unrelated to caching (not unlike David Parker), i needed to observe my controller actions. Well, i needed to couple behaviour onto an existing process and observing is (one of) the nicest ways to do it really.

When a user requests a report, let the controller do the checks and balances, pass it on to a presenter, and then let the world know a (correct) report has been requested. Interested parties (for now) include:
* monitoring for statistical purposes and
* rendering soft copies for prosperity (which in turn notifies the world that soft copies are available)

Sweepers are the new black for this morning.