Runtime components : Runtime Tools : Trace Facility : How the trace works
  
How the trace works
The UDTT Trace Facility provides common trace API facades for all trace users. You can get a log instance from BTTLogFactory, and call the UDTT logging API to record traces. The API calling is delegated to the corresponding trace target. The Trace Facility supports trace to WAS/File/Console by java.util.logging, and trace to common logging.
The trace configuration XML file defines the trace target by BTTLogFactory Implementation class, and defines the trace level for packages and classes. If the trace target is WAS, File or Console, then the trace level configuration is registered to WAS and Java logging. The following diagram shows the Trace Facility working mechanism:
 
Traceworking mechanism
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Trace Facility