/SAPSRM/CL_URL_SERVICE=>GET_URL portal link

Hi Team,

In my SRM 7.02 system , when i run the method GET_URL of class /SAPSRM/CL_URL_SERVICE,

I am getting a NWBC link like:

http://<host>:<port>/nwbc/srm/~canvas;window=app/obn/sc.detailprof/?sap-client=200&NAVMODE=3&SAPSRM_BOID=0050568E317F1ED2BE84AA7C4426AD06&SAPSRM_WIID=000000091817&SAPSRM_BOTYPE=BUS2121

I wanted the link to the portal like:

http://<host>:<port>/irj/portal?NavigationTarget=OBN://BOSystemAlias=SAP_SRM/BOTechnicalName=sc/Operation=detailprof&NavMode=3&SAPSRM_BOID=0050568E317F1ED2BE84AA7C4426AD06&SAPSRM_WIID=000000091817&SAPSRM_BOTYPE=BUS2121

Any idea what to modify to get the portal URL?

Regards,

Ashish