There is a way you can connect Twitter to HANA using Python.
I think that the more friendly libraries in order to use Twitter are implemented with Python, and you can actually access a Python API that it's already included when you install the HANA Client in your system.
Alvaro Tejada Galindo wrote a blog post where he describes how to use Python and HANA together. Then, all you need is to install a Python library for Twitter. Personally, I prefer Tweepy.
With Tweepy and HANA, we are doing some sentiment analysis and data mining. It's not that hard.