googleApi PubSub and in-house implementation

[Saroj Mahapatra]

Hello,

I am looking at alternatives to a message broker we currently use. The PubSub API is nice, but is only available on cloud. I saw that some people use Kafka for that reason - same code in-house and also in-cloud. I am wondering if anybody has tried to implement the server-side code for PubSub API. It has a lot of advantages as it is cross-language, very nice interface and will help migrate to cloud if we choose Google cloud or even other clouds. It'd be nice if Google had released that code.

Thank you.