How to check whether HANA or BWA are available?

Some time back I wrote two posts regarding how to find whether SAP NetWeaver system is HANA DB based and how to find BWA version. Here I’m going bit further on same topic and I introduce another small ABAP code snippet. 
This time it is about how to check on both whether the HANA and/or BWA are available in the system.

REPORT ZMM_HANA_BWA_CHECK.

* via class's attr - this is preferable way
IF cl_rs_utilities=>n_is_hdb_system = rs_c_false.
  WRITE: / 'no hana'.
ELSE.
  WRITE: / 'hana in place'.
ENDIF.

* via class's method
IF cl_rs_utilities=>is_hdb_system( ) = rs_c_false.
  WRITE: / 'no HANA'.
ELSE.
  WRITE: / 'HANA in place'.
ENDIF.

* via class's method
IF cl_rsddtrex_core=>get_trex_rfc_dest( ) IS INITIAL.
  WRITE: / 'no BWA'.
ELSE.
  WRITE: / 'BWA in place'.
ENDIF.

Source code available at: github.com/softy12/ZMM_HANA_BWA_CHECK  

Related posts:

How to check whether your ABAP NetWeaver is HANA DB based?

How to find BWA version?

Learn your BW in hard way