ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP Java Examples

/**
 * Create the basic thrift appender which logs to a file
 * and rolls the file when it exceeds a certain size.
 *
 * @param basePath base directory the files are under.
 * @param topic the topic name for the current appender.
 * @param rotateThresholdKBytes threshold in kilobytes to rotate after.
 * @param context the logback context.
 */
public static Appender<LogMessage> createFileRollingThriftAppender(
    File basePath,
    String topic,
    long rotateThresholdKBytes,
    Context context,
    int maxRetentionHours) {
  RollingFileAppender<LogMessage> appender = new RollingFileAppender<LogMessage>();
  appender.setContext(context);
  appender.setAppend(true);
  appender.setPrudent(false);

  LogMessageEncoder encoder = new LogMessageEncoder();
  appender.setEncoder(encoder);
  appender.setFile(basePath + PATH_SEP + topic);

  TimeBasedRollingPolicy policy = new TimeBasedRollingPolicy();
  policy.setMaxHistory(maxRetentionHours);
  policy.setFileNamePattern(basePath + PATH_SEP + topic + ".%d{yyyy-MM-dd-HH}.%i");
  policy.setCleanHistoryOnStart(false);
  policy.setContext(context);
  policy.setParent(appender);

  // Also impose a max size per file policy.
  SizeAndTimeBasedFNATP fnatp = new SizeAndTimeBasedFNATP();
  fnatp.setContext(context);
  fnatp.setTimeBasedRollingPolicy(policy);
  fnatp.setMaxFileSize(FileSize.valueOf(String.format("%sKB", rotateThresholdKBytes)));

  policy.setTimeBasedFileNamingAndTriggeringPolicy(fnatp);
  appender.setRollingPolicy(policy);
  appender.setTriggeringPolicy(policy);

  policy.start();
  appender.start();

  return appender;
}
 

/**
 * Create an appender that will create a new log each day
 *
 * @param context
 * @param encoder
 * @return An appender that matches the set up of the logger builder
 */
private RollingFileAppender<ILoggingEvent> createDailyLogAppender(
    LoggerContext context, Encoder<ILoggingEvent> encoder) {
  RollingFileAppender<ILoggingEvent> appender = new RollingFileAppender<>();
  appender.setEncoder(encoder);
  appender.setFile(file);

  TimeBasedRollingPolicy<ILoggingEvent> rolling = new TimeBasedRollingPolicy<>();
  rolling.setContext(context);
  rolling.setParent(appender);

  rolling.setFileNamePattern(getFileWithPattern("%d"));

  // Set the maximum number of logs, either to the user specified setting or default to 1
  if (maxNumberLogs.isPresent() && maxNumberLogs.get() >= 0) {
    rolling.setMaxHistory(maxNumberLogs.get());
  } else {
    rolling.setMaxHistory(1);
  }

  // Do we need to also split files by size?
  if (divideBasedOnSize()) {
    SizeAndTimeBasedFNATP<ILoggingEvent> sizeBased = new SizeAndTimeBasedFNATP<>();
    sizeBased.setContext(context);
    sizeBased.setMaxFileSize(getMaxFileSize());
    sizeBased.setTimeBasedRollingPolicy(rolling);

    rolling.setTimeBasedFileNamingAndTriggeringPolicy(sizeBased);
  }

  rolling.start();
  if (rolling.getTimeBasedFileNamingAndTriggeringPolicy() != null) {
    rolling.getTimeBasedFileNamingAndTriggeringPolicy().start();
  }
  appender.setRollingPolicy(rolling);

  return appender;
}
 

private static void initLogs() {
    Logger logbackLogger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
    LoggerContext lc = logbackLogger.getLoggerContext();

    Logger rootLogger = lc.getLogger(Logger.ROOT_LOGGER_NAME);
    rootLogger.detachAndStopAllAppenders();

    TimeBasedRollingPolicy<ILoggingEvent> rollingPolicy = new TimeBasedRollingPolicy<ILoggingEvent>();
    rollingPolicy.setMaxHistory(3);
    SizeAndTimeBasedFNATP<ILoggingEvent> sizeAndTimeBasedFNATP = new SizeAndTimeBasedFNATP<ILoggingEvent>();
    sizeAndTimeBasedFNATP.setMaxFileSize("2MB");
    rollingPolicy.setTimeBasedFileNamingAndTriggeringPolicy(sizeAndTimeBasedFNATP);
    rollingPolicy.setFileNamePattern(context.getFilesDir().getPath() + "/logs/old/flickruploader.%d{yyyy-MM-dd}.%i.log");
    rollingPolicy.setContext(lc);

    RollingFileAppender<ILoggingEvent> fileAppender = new RollingFileAppender<ILoggingEvent>();
    fileAppender.setContext(lc);
    fileAppender.setFile(getLogFilePath());
    fileAppender.setRollingPolicy(rollingPolicy);
    fileAppender.setTriggeringPolicy(rollingPolicy);
    rollingPolicy.setParent(fileAppender);

    PatternLayoutEncoder pl = new PatternLayoutEncoder();
    pl.setContext(lc);
    pl.setCharset(Charset.defaultCharset());
    pl.setPattern("%d{HH:mm:ss.SSS} [%thread] %-5level %class{0}.%method:%L > %msg%n");
    pl.setImmediateFlush(false);
    pl.start();

    fileAppender.setEncoder(pl);
    fileAppender.setName("file");

    rollingPolicy.start();
    fileAppender.start();

    if (Config.isDebug()) {
        final PatternLayoutEncoder logcatTagPattern = new PatternLayoutEncoder();
        logcatTagPattern.setContext(lc);
        logcatTagPattern.setPattern("%class{0}");
        logcatTagPattern.start();

        final PatternLayoutEncoder logcatPattern = new PatternLayoutEncoder();
        logcatPattern.setContext(lc);
        logcatPattern.setPattern("[%thread] %method:%L > %msg%n");
        logcatPattern.start();

        final LogcatAppender logcatAppender = new LogcatAppender();
        logcatAppender.setContext(lc);
        logcatAppender.setTagEncoder(logcatTagPattern);
        logcatAppender.setEncoder(logcatPattern);
        logcatAppender.start();

        rootLogger.addAppender(logcatAppender);
    }

    rootLogger.addAppender(fileAppender);

}