Calling webservices in pentaho

Hi gurus,

I am new to pentaho. Currently we have requirement in our project to call webservices and publish the results to oracle table. Below is the detail requirement:

we are getting State,Zipcode details as csv format from source. Now we need to populate the longitude, latitude details using webservices corresponding to that state, city and store it in table.

I tried to understand the existing transformation in sample folder but is giving me error.

This is urgent requirement. Please help.

Thanks in advance.