Accessing SOAP envelope to place values in SOAP header dynamically

Hi Experts,

I am trying to develop a java mapping to access the SOAP envelope of the target message to place the source message values dynamically in the SOAP header.

First of all i want to conform is it possible to perform above task?

If it is possible then, how it can be done?

Any help from your end is really appreciable.Thank you very much in advance.

Regards,

Avinash.