DB storage intercepted response-time values

[Asma Maalej]

Hello

i'm working on the monitoring web services, using axis2-1.4.1 and tomcat 
6.0.18.
I have to intercept QoS parameters like response-time. to do that, I 
should capture in the handler code the  System.currentTimeMillis() and 
add it to the SOAPheader of the SOAP message. of course, this handler 
must to be involved in InFlow and the OutFlow.

My problem is how could I recover these 2 values, cause now I can have 
only one which is at the time of the reception of request SOAP message. 
but the one at the moment of sending response SOAP message, I have no 
idea, how could I do that

Any idea please?