TTCC
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TTCC is a message format used by Log4j. TTCC is acronym for Time Thread Category Component. It uses the following pattern:
%r [%t] %-5p %c %x - %m%n
Where
| Mnemonic | Description |
|---|---|
| %r | Used to output the number of milliseconds elapsed from the construction of the layout until the creation of the logging event. |
| %t | Used to output the name of the thread that generated the logging event. |
| %p | Used to output the priority of the logging event. |
| %c | Used to output the category of the logging event. |
| %x | Used to output the NDC (nested diagnostic context) associated with the thread that generated the logging event. |
| %m | Used to output the application supplied message associated with the logging event. |
| %n | Used to output the platform-specific newline character or characters. |
Example output
467 [main] INFO org.Apache.log4j.examples.Sort - Exiting main method.