Slides for a workshop at TYPO3 Developer Days 2012 which was called: "Refactoring TYPO3 Logging". The slides mainly cover two topics: The current Logging dilemma in TYPO3v4 and the architecture of the new Logging API in TYPO3v6

1. Refactoring
TYPO3 Logging
Image by “digital cat”: http://www.flickr.com/people/14646075@N03/

2. About me
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Steffen Müller
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/gebrüderheitz GbR
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Freiburg/Germany
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TYPO3 developer
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9 years experience with TYPO3
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Twitter: @t3node
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TYPO3 Blog: http://www.t3node.com
Refactoring TYPO3 Logging at #t3dd12

3. Main Project Team
Steffen Gebert
Ingo Renner
Steffen Müller
Refactoring TYPO3 Logging at #t3dd12

4. About you
Tell us in 2-3 Sentences:
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Who are you?
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What are your TYPO3 skills?
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What you expect from the workshop?
Image by Dierk Schaefer: http://www.flickr.com/people/dierkschaefer/
Then add yourself to the Forge Project:
http://forge.typo3.org/projects/typo3v4-logging
Refactoring TYPO3 Logging at #t3dd12

5. Workshop Topics
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Overview
Project goals
✗ What has been done so far?
Hands on
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Test and review the Logging API
Code some nasty stuff
Your suggested topic!
Refactoring TYPO3 Logging at #t3dd12

6. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

7. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

8. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

9. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

10. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

11. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

12. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

13. The Logging Dilemma
Refactoring TYPO3 Logging at #t3dd12

14. Refactoring Goals
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New Logging API
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Replace existing log calls in core with new API calls
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New BE module
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Showcase extensions
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Documentation
Refactoring TYPO3 Logging at #t3dd12

15. What has been done so far?
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New Logging API in t3lib/log/
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Incubator git repository
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Proof-of-concept:
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Configuration $TYPO3_CONF_VARS['LOG']
Replaced t3lib_div::devLog and sysLog
Refactoring TYPO3 Logging at #t3dd12

16. The new Logging API
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A single API
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Extensible
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Configurable
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Up to 100% covered with UnitTests
Refactoring TYPO3 Logging at #t3dd12

17. API Overview
Refactoring TYPO3 Logging at #t3dd12

18. LogManager
Refactoring TYPO3 Logging at #t3dd12

19. LogLogger
Refactoring TYPO3 Logging at #t3dd12

20. LogLevel
Refactoring TYPO3 Logging at #t3dd12

21. LogRecord
Refactoring TYPO3 Logging at #t3dd12

22. LogRecord
Refactoring TYPO3 Logging at #t3dd12

23. LogWriters
Refactoring TYPO3 Logging at #t3dd12

24. Example usage
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Instanciate Logger:
$logger = t3lib_log_LogManager::getLogger(__CLASS__);
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Write log event:
$logger->log(t3lib_log_Level::ERROR, 'My Message');
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Shorthand syntax:
$logger->error('My Message');
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Additional data:
$logger->debug('My Message', array('foo' => 'bar'));
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Method chaining:
t3lib_log_LogManager::getLogger(__CLASS__)->error('lol');
Refactoring TYPO3 Logging at #t3dd12

25. Possible Workgroups
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Testing and reviewing the current API code
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Coding a custom LogWriter extension
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Porting the current code to a backport extension
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Configuration
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Performance / Profiling
Refactoring TYPO3 Logging at #t3dd12

26. Project Resources
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Logging API directory: t3lib/log/
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Workshop Wiki:
http://forge.typo3.org/projects/typo3v4-logging/wiki/T3DD12Workshop
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Forge Project: Logging Improvements
http://forge.typo3.org/projects/typo3v4-logging
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Git: Incubator, branch project-logging-t3dd12
git://git.typo3.org/TYPO3v4/Incubator.git
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Refactoring TYPO3 Logging at #t3dd12