Is there a possibility we can feed a rtmp source to AMS and play from there?

Is there a possibility we can feed a rtmp source to AMS and stream from there to a player?

The requirement is we will be getting a RTMP source from an external provider, the feed we are receiving should be routed through our AMS. Is it possible? Please let me know your inputs.

Here is the complete use case:

1) we will have multiple contentowner, which publish there stream url to use.

2) we using AMS (adobe media server 5) and JW player to stream

3) from movie page, when user click the stream, we need the following action to happen

4) JW player query the AMS with stream url published by content owner, in turn AMS query the published stream of content owner and stream it through AMS and output is provided to JW.

these action must be dynamic / programmatic controlled. 

currently we are aware of the use of Live encoder GUI application to start the stream, but we need solution to get this done dynamically. Please suggest

Thanks