Log4cpp - Updated - to verify modify updates
- 1. Log4cpp in auction Angus Chen March 9, 2007
- 2. Why and when writing logs debug message. error handle. system monitor.
- 3. History v1. cerr, cout to standard output or error, or directly open and write into file v2. YAX_YLOG, define DEBUG level. v3. log4cpp, full configurable.
- 4. log4cpp concept logger a.b.c.d.e=>logger category. log appender=> output log writer. use configuration file to define which logger uses which kind of appender.
- 5. Usage step1. #include <auctions/log/yapLogcpp.h> class xxx{ static LoggerPtr logger; } step2. LoggerPtr xxx::logger=getLogger("myauc.UserWatchingBO"); step3. if(DEBUG_ENABLE){ logdebug(logger)<< "from is "<<from; }
- 6. Writing a testcase void setUp(){ Yahoo::Taiwan::Auction::yapLogcpp::test(); }
- 7. Configuration default show message > debug level. else read all files in /home/y/conf/yap_logcpp/ log file and reference http://twiki.corp.yahoo.com/view/Devel/log4cpp_y
- 8. Q&A