[ovirt-users] assign hostname to vm using REST API

[naaz]

I am using REST API to integrate rhev with java(not SDK)
I am trying to assign hostname to vm but showing some bad request error.

I have created template from vm which have cloud init package in it also m 
using rhev 3.4.
Do i need to use payload method if so please provide me the proper code for 
both -for passing payload through code in url and the payload file sample

can anyone plz tell me how to do it?