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Overview

OpenFusion uses the log4j package to support error diagnostics and logging. This is a public domain logging package. Further details can be found at http://jakarta.apache.org/log4j.

Conceptually, the log4j package supports appenders and layout managers. Appenders direct output to a particular destination such as file or system log. Layout managers can be used to format the generated log message. Every appender has an associated layout manager.

The layout of the log messages in OpenFusion is set to the default pattern layout of the log4j package, which means only the message and severity appear. The format of the output message can be customised by the use of a pattern layout manager and an associated conversion pattern. See the on-line log4j documentation for details on how this can be done.



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