The Log4j logger is used in MagicDraw and other modeling tools developed by No Magic Inc. The configuration file is <program installation directory>/data/debug.properties.
The <program installation directory>/data/test.properties file is used as a configuration file for program test cases.
The following sample presents the content of the configuration file. It configures the logger to print INFO category messages to a console with a specific pattern.
log4j.appender.SO=org.apache.log4j.ConsoleAppender log4j.appender.SO.layout=org.apache.log4j.PatternLayout log4j.appender.SO.layout.ConversionPattern=%d [%t] %-5p %c - %m%n log4j.rootCategory=INFO,SO
The example below displays how information can be logged to the configured log file:
//used to get logger with category name org.apache.log4j.Logger logger = org.apache.log4j.Logger.getLogger("GENERAL"); logger.info("Logging info"); logger.error("Logging error"); //by default the text will be displayed in the form of : //0000-00-00 00:00:00,000 [THREAD] INFO GENERAL - Logging info //0000-00-00 00:00:00,000 [THREAD] ERROR GENERAL - Logging error
More information about Log4j can be found at http://logging.apache.org/log4j/1.2/.