Examples of org.apache.log4j.rolling.RollingFileAppender

org.apache.log4j.rolling.RollingFileAppender

RollingFileAppender extends {@link FileAppender} to backup the log filesdepending on {@link RollingPolicy} and {@link TriggeringPolicy}.

To be of any use, a RollingFileAppender instance must have both a RollingPolicy and a TriggeringPolicy set up. However, if its RollingPolicy also implements the TriggeringPolicy interface, then only the former needs to be set up. For example, {@link TimeBasedRollingPolicy} acts both as aRollingPolicy and a TriggeringPolicy.

RollingFileAppender can be configured programattically or using {@link org.apache.log4j.joran.JoranConfigurator}. Here is a sample configration file:

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration> <log4j:configuration debug="true"> <appender name="ROLL" class="org.apache.log4j.rolling.RollingFileAppender"> <rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy"> <param name="FileNamePattern" value="/wombat/foo.%d{yyyy-MM}.gz"/> </rollingPolicy> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%c{1} - %m%n"/> </layout>      </appender> <root"> <appender-ref ref="ROLL"/> </root> </log4j:configuration>

This configuration file specifies a monthly rollover schedule including automatic compression of the archived files. See {@link TimeBasedRollingPolicy} for more details. @author Heinz Richter @author Ceki Gülcü @since 1.3

      TimeBasedRollingPolicy rollingPolicy = new TimeBasedRollingPolicy();
      File logDir = new File(gs.getAtlasDir(), "logs");
      rollingPolicy.setFileNamePattern(logDir.getAbsolutePath()+"/nunaliit.%d.gz");
      rollingPolicy.activateOptions();
      
      RollingFileAppender fileAppender = new RollingFileAppender();
      fileAppender.setRollingPolicy(rollingPolicy);
      fileAppender.setTriggeringPolicy(rollingPolicy);
      fileAppender.setLayout(new PatternLayout("%d{ISO8601}[%-5p]: %m%n"));
      fileAppender.activateOptions();
      
      rootLogger.addAppender(fileAppender);
    }


    // Capture java.util.Logger

Examples of org.apache.log4j.rolling.RollingFileAppender

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