Configuration Tool 
The descriptions below do not apply if you are working in the J2EE Engine environment. The entire J2EE Engine logging configuration is gathered in an XML file called log-configuration.xml. You can use this file to create or edit controllers, destinations, and formatters, and to create or edit filters and associated destinations. For more information, see Log Configuration in the J2EE Engine documentation.
SAP Logging API Configuration Tool
The SAP Logging API provides a means of independently configuring the behavior and output of logging, without you having to change the source code. This can be very useful, for example, if you want to generate more or fewer log messages depending on the diagnosis level you are in. Sometimes you may also want to change the output destination or the format of the message. These can all be specified separately and integrated dynamically in the program. It is not necessary to recompile the source code.
If you are clear about the concept, when you refer back to the example shown in the Enabling Logging for an Application section of this tutorial, you will realize that, eventually, what are left in the source code are the APIs from steps 1 and 4. The rest can be taken out and placed in a properties file. The following two sections show you how to read the properties file from your code, and how to construct a properties file. For more information, see:
· Calling the Configuration Tool
· Syntax and Semantics of the Properties File