Error logging directly to a server that is separate from the Datapower device. It is good practise to do off box logging for error handling and audit trail. A python log listener will be used on your PC and have Datapower logs its message to SOAP format.
The pseudo python code is as follows:
import SocketServer, time
ceate Host and PortNumber
def now() as ctime
responsecode as HTTP, Content Length, Content Type
Define MyClientHandler method
define handle
define buffer
loop listen and fill buffer
Thys Michels Blog 
Very insightful post, will have to tell my friends to come visit and reap this gem of knowledge. Amazing epistemological contribution.