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Log formatters


Log formatters format log messages so they can be used by various log handlers.

Handlers can be configured with a log formatter that knows how to format log records. The event, which is represented by the log record object, is passed to the appropriate formatter by the handler. The formatter returns formatted output to the handler, which writes the output to the output device.

The formatter is responsible for rendering the event for output. This formatter uses the resource bundle specified in the event to look up the message in the appropriate language.

Formatters are attached to handlers using the setFormatter method.

With WAS, we can configure the formatter to work with trace, the SystemOut.log, and theSystemErr.log log files:

We can select a formatter for a handler using the admin console panels. See Diagnostic trace service settings for details.

We can find the java.util.logging documentation at http://java.sun.com/javase/.



Related concepts


Loggers
Log handlers
Log filters

 

Related


Log levels