Complex Datasources

I believe I submitted this a while back, but cannot find the post. 

There have been countless times I have had to script something to pull data from multiple sources, to bring it together to compare or manipulate. E.g. Querying multiple databases to compare a count of transactions processed at each step in the workflow or alerting if CPU across more than one server in cluster is over threshold. I really hate Groovy scripting, but so far, it has been the best way to accomplish this. 

It sounds very feasible to create a DS that just scrapes data from existing datasources. Please implement this!