MongoDB integration

Dear everybody,

I have seen several messages on this forum [1,2] that ask for or describe approaches to integrate Elastic Search into MongoDB. Has there been any recent development with this?

I am looking for a document store that can save attachments in form of Office-, PDF-, etc. documents and provides full-text search.

Many thanks for any updates or pointers,
Kaspar

[1] http://elasticsearch-users.115913.n3.nabble.com/ES-with-Mongodb-tp1980927p1980927.html
[2] http://elasticsearch-users.115913.n3.nabble.com/ES-and-MongoDB-integration-td1209794.html