I've just started to set up an environment with logback, but found
examples for programmatically configuring logback limited, or a mix of
solutions for a number of different logger interfaces. As such I hope
that the code below helps someone in the future as an example. It may
not be the best code on the planet but what it demos is
- Select the root logger so that the configuration becomes
the default.
- Sets up a RollingFileAppender
- Sets up a FixedWindowRollingPolicy
- Sets up a SizeBasedTriggeringPolicy
- Sets up a PatternLayoutEncoder
To be honest I'm not at the point of fully understanding all the steps
so can't provide full docs for the example (yet).
package org.utils;
import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.rolling.FixedWindowRollingPolicy;
import ch.qos.logback.core.rolling.RollingFileAppender;
import ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy;
import ch.qos.logback.core.util.StatusPrinter;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import org.slf4j.LoggerFactory;
public class setupLogging
{
public static void logbackInit()
{
Logger rootLogger =
(Logger)LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
LoggerContext loggerContext = rootLogger.getLoggerContext();
loggerContext.reset();
RollingFileAppender<ILoggingEvent> rfAppender = new
RollingFileAppender<ILoggingEvent>();
rfAppender.setContext(loggerContext);
rfAppender.setFile("log output.log");
FixedWindowRollingPolicy fwRollingPolicy = new
FixedWindowRollingPolicy();
fwRollingPolicy.setContext(loggerContext);
fwRollingPolicy.setFileNamePattern("log output-%i.log.zip");
fwRollingPolicy.setParent(rfAppender);
fwRollingPolicy.start();
SizeBasedTriggeringPolicy<ILoggingEvent> triggeringPolicy = new
SizeBasedTriggeringPolicy<ILoggingEvent>();
triggeringPolicy.setMaxFileSize("5MB");
triggeringPolicy.start();
PatternLayoutEncoder encoder = new PatternLayoutEncoder();
encoder.setContext(loggerContext);
encoder.setPattern("%-4relative [%thread] %-5level %logger{35}
- %msg%n");
encoder.start();
rfAppender.setEncoder(encoder);
rfAppender.setRollingPolicy(fwRollingPolicy);
rfAppender.setTriggeringPolicy(triggeringPolicy);
rfAppender.start();
rootLogger.addAppender(rfAppender);
// generate some output
StatusPrinter.print(loggerContext);
rootLogger.debug("hello tt");
}
}
_______________________________________________
Logback-user mailing list
[email protected]
http://mailman.qos.ch/mailman/listinfo/logback-user
