Receive on driver program (without serializing)

We are building a wrapper that makes it possible to use reactive streams (i.e. Observable, see reactivex.io) as input to Spark Streaming. We therefore tried to create a custom receiver for Spark. However, the Observable lives at the driver program and is generally not serializable. Is it possible

Spark Streaming custom receiver for local data

We are building a wrapper that makes it possible to use reactive streams (i.e. Observable, see reactivex.io) as input to Spark Streaming. We therefore tried to create a custom receiver for Spark. However, the Observable lives at the driver program and is generally not serializable. Is it possible