| 1 | # See for basic example https://stackoverflow.com/questions/125 32339/no-appenders-could-be-found-for-loggerlog4j
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| 2 | # For better examples, see /greenstone/greenstone3/web/WEB-INF/classes/log4j.properties
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| 3 | # Manual (examples use XML versions of log4j config files): https://logging.apache.org/log4j/2.x/manual/configuration.html
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| 4 | # https://logging.apache.org/log4j/2.x/manual/configuration.html#Properties
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| 5 | # HH (0-24 hrs) vs hh (0-12 hrs, am/pm): https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html
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| 6 | # https://logging.apache.org/log4j/1.2/manual.html
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| 7 | #######################
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| 8 |
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| 9 | # define some reusable properties
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| 10 | maori-lang-detector.home=/Scratch/ak19/gs3-extensions/maori-lang-detection
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| 11 | maori-lang-detector.logpath=${maori-lang-detector.home}/logs
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| 12 |
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| 13 | # Let's log everything from the most basic DEBUG msgs on (so INFO, WARN, ERROR too)
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| 14 | # Also want to log to the console, see
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| 15 | # https://stackoverflow.com/questions/3382985/how-to-make-log4j-to-write-to-the-console-as-well
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| 16 |
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| 17 | log4j.rootCategory=DEBUG, console, mldlog
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| 18 |
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| 19 | # Define Console Appender
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| 20 | log4j.appender.console=org.apache.log4j.ConsoleAppender
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| 21 | # Define the layout for console appender. If you do not define it, you will get an error
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| 22 | log4j.appender.console.layout=org.apache.log4j.PatternLayout
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| 23 | log4j.appender.console.Target=System.err
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| 24 |
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| 25 | # We're saying our log "mldlog" is some file that gets appended to,
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| 26 | # and it will write it out to "maori-lang-detector.log" located in whatever we defined the "logpath" to be
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| 27 |
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| 28 | # Old way of logging:
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| 29 | #log4j.appender.mldlog=org.apache.log4j.RollingFileAppender
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| 30 | #log4j.appender.mldlog.File=${maori-lang-detector.logpath}/maori-lang-detector.log
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| 31 | ## https://howtodoinjava.com/log4j/log4j-rolling-file-appender/
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| 32 | ##log4j.appender.mldlog.MaxBackupIndex=10
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| 33 |
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| 34 | # We want a DailyRollingFileAppender.
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| 35 | # Its behaviour is explained at
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| 36 | # https://examples.javacodegeeks.com/enterprise-java/log4j/log4j-rolling-daily-file-example/
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| 37 | log4j.appender.mldlog=org.apache.log4j.DailyRollingFileAppender
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| 38 | log4j.appender.mldlog.File=${maori-lang-detector.logpath}/maori-lang-detector.log
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| 39 | log4j.appender.mldlog.DatePattern='.'yyyy-MM-dd
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| 40 | # set to roll over every day, can change this to weekly/every min etc, see https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/DailyRollingFileAppender.html
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| 41 |
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| 42 | # if you have more logs, define category, additivity, appender and appender.File for it as above
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| 43 | # for each log also set the format of the output as below, after setting the layout to use PatternLayout class to parse the format
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| 44 |
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| 45 | log4j.appender.mldlog.layout=org.apache.log4j.PatternLayout
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| 46 | log4j.appender.mldlog.layout.ConversionPattern=%-5p: [%d{yyyy-MM-dd HH:mm:ss}] %C{1}.%M()%n %m%n
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| 47 |
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| 48 | #######################
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