Examples of org.apache.log4j.varia.LevelRangeFilter

org.apache.log4j.varia.LevelRangeFilter
This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range.
The filter admits three options LevelMin, LevelMax and AcceptOnMatch.
If the level of the {@link LoggingEvent} is not between Min and Max(inclusive), then {@link Filter#DENY} is returned.
If the Logging event level is within the specified range, then if AcceptOnMatch is true, {@link Filter#ACCEPT} is returned, and ifAcceptOnMatch is false, {@link Filter#NEUTRAL} is returned.
If LevelMinw is not defined, then there is no minimum acceptable level (ie a level is never rejected for being too "low"/unimportant). If LevelMax is not defined, then there is no maximum acceptable level (ie a level is never rejected for beeing too "high"/important).
Refer to the {@link org.apache.log4j.AppenderSkeleton#setThreshold setThreshold} methodavailable to all appenders extending {@link org.apache.log4j.AppenderSkeleton} for a more convenient way tofilter out events by level. @author Simon Kitching @author based on code by Ceki Gülcü


    PatternLayout layoutSimple = new PatternLayout();
    layoutSimple.setConversionPattern("%m%n");


    // Filter for the statuses: we only want INFO messages
    LevelRangeFilter filter = new LevelRangeFilter();
    filter.setLevelMax(Level.INFO);
    filter.setLevelMin(Level.INFO);
    filter.setAcceptOnMatch(true);
    filter.activateOptions();


    TimeBasedRollingPolicy statusesRollingPolicy = new TimeBasedRollingPolicy();
    statusesRollingPolicy.setFileNamePattern("statuses.log" + HOUR_ROLL);
    statusesRollingPolicy.activateOptions();

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    PatternLayout layoutSimple = new PatternLayout();
    layoutSimple.setConversionPattern("%m%n");


    // Filter for the statuses: we only want INFO messages
    LevelRangeFilter filter = new LevelRangeFilter();
    filter.setLevelMax(Level.INFO);
    filter.setLevelMin(Level.INFO);
    filter.setAcceptOnMatch(true);
    filter.activateOptions();


    TimeBasedRollingPolicy statusesRollingPolicy = new TimeBasedRollingPolicy();
    statusesRollingPolicy.setFileNamePattern("statuses.log" + HOUR_ROLL);
    statusesRollingPolicy.activateOptions();

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        final Logger logger = Logger.getLogger(AggTableManager.class);
        propSaver.setAtLeast(logger, org.apache.log4j.Level.WARN);
        final StringWriter sw = new StringWriter();
        final Appender appender =
            new WriterAppender(new SimpleLayout(), sw);
        final LevelRangeFilter filter = new LevelRangeFilter();
        filter.setLevelMin(org.apache.log4j.Level.WARN);
        appender.addFilter(filter);
        logger.addAppender(appender);
        try {
            final TestContext testContext = TestContext.instance().withSchema(
                "<?xml version=\"1.0\"?>\n"

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        final Logger logger = Logger.getLogger(AggTableManager.class);
        propSaver.setAtLeast(logger, org.apache.log4j.Level.WARN);
        final StringWriter sw = new StringWriter();
        final Appender appender =
            new WriterAppender(new SimpleLayout(), sw);
        final LevelRangeFilter filter = new LevelRangeFilter();
        filter.setLevelMin(org.apache.log4j.Level.WARN);
        appender.addFilter(filter);
        logger.addAppender(appender);
        try {
            final TestContext testContext = TestContext.instance().withSchema(
                "<?xml version=\"1.0\"?>\n"

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