Java 类ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP 实例源码

/**
 * 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;
}

/**
 * Creates Logger that will write logs in html file using slf4j and logback.
 * The logs will be included in Phial Attachment
 *
 * @param context application context
 */
public PhialLogger(Context context) {
    logDir = createLogDir(context);
    clearOldLogs(logDir);

    final String logDirectory = logDir.getAbsolutePath();
    // reset the default context (which may already have been initialized)
    // since we want to reconfigure it
    LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
    loggerContext.reset();

    RollingFileAppender<ILoggingEvent> rollingFileAppender = new RollingFileAppender<>();
    rollingFileAppender.setContext(loggerContext);
    rollingFileAppender.setAppend(true);
    rollingFileAppender.setFile(logDirectory + "/" + LOG_PREFIX + "-latest.html");

    SizeAndTimeBasedFNATP<ILoggingEvent> fileNamingPolicy = new SizeAndTimeBasedFNATP<>();
    fileNamingPolicy.setContext(loggerContext);
    fileNamingPolicy.setMaxFileSize(MAX_FILE_SIZE);

    TimeBasedRollingPolicy<ILoggingEvent> rollingPolicy = new TimeBasedRollingPolicy<>();
    rollingPolicy.setContext(loggerContext);
    rollingPolicy.setFileNamePattern(logDirectory + "/" + LOG_PREFIX + HISTORY_FILE_NAME_PATTERN);
    rollingPolicy.setMaxHistory(5);
    rollingPolicy.setTimeBasedFileNamingAndTriggeringPolicy(fileNamingPolicy);
    rollingPolicy.setParent(rollingFileAppender);  // parent and context required!
    rollingPolicy.start();

    HTMLLayout htmlLayout = new HTMLLayout();
    htmlLayout.setContext(loggerContext);
    htmlLayout.setPattern(PATTERN);
    htmlLayout.start();

    LayoutWrappingEncoder<ILoggingEvent> encoder = new LayoutWrappingEncoder<>();
    encoder.setContext(loggerContext);
    encoder.setLayout(htmlLayout);
    encoder.start();

    rollingFileAppender.setRollingPolicy(rollingPolicy);
    rollingFileAppender.setEncoder(encoder);
    rollingFileAppender.start();

    // add the newly created appenders to the root logger;
    // qualify Logger to disambiguate from org.slf4j.Logger
    Logger root = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
    root.setLevel(Level.DEBUG);
    root.addAppender(rollingFileAppender);
    // print any status messages (warnings, etc) encountered in logback config
    StatusPrinter.print(loggerContext);
}

@Test
public void testConfigureRollingFileAppender() {
    System.setProperty("config.file", "src/test/resources/rollingFileAppender.conf");
    ConfigFactory.invalidateCaches();

    LoggerContext context = new LoggerContext();
    ConfigConfigurator configurator = new ConfigConfigurator();
    configurator.configure(context);

    int errorCount = 0;
    int warningCount = 0;
    for (Status status : context.getStatusManager().getCopyOfStatusList()) {
        if (status.getLevel() == Status.ERROR) {
            System.out.println(String.format("ERROR : %s", status.getMessage()));
            errorCount++;
        } else if (status.getLevel() == Status.WARN) {
            System.out.println(String.format("WARN : %s", status.getMessage()));
            warningCount++;
        } else if (status.getLevel() == Status.INFO) {
            System.out.println(String.format("INFO : %s", status.getMessage()));
        }

    }
    assertEquals(0, errorCount);
    assertEquals(0, warningCount);

    Logger rootLogger = context.getLoggerList().get(0);
    Appender<?> appender = rootLogger.getAppender("rolling");
    assertTrue(appender.isStarted());

    assertTrue(appender instanceof RollingFileAppender);

    RollingFileAppender<?> rolling = (RollingFileAppender<?>) appender;
    assertTrue(rolling.getEncoder() instanceof PatternLayoutEncoder);
    assertTrue(rolling.isStarted());

    PatternLayoutEncoder encoder = (PatternLayoutEncoder) rolling.getEncoder();
    assertEquals(Charset.forName("UTF-8"), encoder.getCharset());
    assertEquals("%date %level %logger %thread %msg%n", encoder.getPattern());

    assertEquals("logs/test.log", rolling.getFile());

    assertTrue(rolling.getRollingPolicy() instanceof TimeBasedRollingPolicy);
    TimeBasedRollingPolicy<?> rollingPolicy = (TimeBasedRollingPolicy<?>) rolling.getRollingPolicy();

    assertEquals("logs/test%d{yyyy-MM-dd}.%i.log", rollingPolicy.getFileNamePattern());
    assertEquals(30, rollingPolicy.getMaxHistory());
    assertTrue(rollingPolicy.isStarted());

    assertTrue(rollingPolicy.getTimeBasedFileNamingAndTriggeringPolicy() instanceof SizeAndTimeBasedFNATP);

    SizeAndTimeBasedFNATP<?> triggeringPolicy = (SizeAndTimeBasedFNATP<?>) rollingPolicy.getTimeBasedFileNamingAndTriggeringPolicy();
    assertEquals("5MB", triggeringPolicy.getMaxFileSize());
    assertTrue(triggeringPolicy.isStarted());
}

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);

}