Would like to add the option in the current Change Trigger: When sensor changes, perform...
To: When sensor [does | does not] change, perform ....
to handle values that may or may not change. This would be helpful to easily identify files that do not change - but should.
For example, a JSON file has a time-stamp inside assigned to a XML Node (and optional property): msg_time. The file should be updated every 5 mins.
If we scan the file using the XML/REST sensor every 10 minutes, and this field does NOT change, trigger a Change Notification. However, this is hard-coded for "does change" and we are unable to easily perform this check with stock sensors/alerts.
I'm open to work-arounds also for this in the meantime. Any creative examples most appreciated.