Java Configuration.addLogger方法代码示例

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
public static LoggerConfig getOrCreateLoggerConfig(String name) {
  LoggerContext context = (LoggerContext) LogManager.getContext(false);
  Configuration config = context.getConfiguration();
  LoggerConfig logConfig = config.getLoggerConfig(name);
  boolean update = false;
  if (!logConfig.getName().equals(name)) {
    List<AppenderRef> appenderRefs = logConfig.getAppenderRefs();
    Map<Property, Boolean> properties = logConfig.getProperties();
    Set<Property> props = properties == null ? null : properties.keySet();
    logConfig = LoggerConfig.createLogger(String.valueOf(logConfig.isAdditive()),
        logConfig.getLevel(), name, String.valueOf(logConfig.isIncludeLocation()),
        appenderRefs == null ? null : appenderRefs.toArray(new AppenderRef[appenderRefs.size()]),
        props == null ? null : props.toArray(new Property[props.size()]), config, null);
    config.addLogger(name, logConfig);
    update = true;
  }
  if (update) {
    context.updateLoggers();
  }
  return logConfig;
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
protected void configureLogging() {
    final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    final Configuration config = ctx.getConfiguration();
    Layout layout = PatternLayout.createLayout(PatternLayout.SIMPLE_CONVERSION_PATTERN, null, config, null, null,
            true, false, null, null);
    Appender appender = FileAppender.createAppender(workDir + "/logs/camel-standalone.log", "false", "false", "File", "true",
            "false", "false", "4000", layout, null, "false", null, config);
    appender.start();
    config.addAppender(appender);
    AppenderRef ref = AppenderRef.createAppenderRef("File", null, null);
    AppenderRef[] refs = new AppenderRef[] {ref};
    LoggerConfig loggerConfig = LoggerConfig.createLogger("false", Level.INFO, "StandaloneFileLoggerConfig",
            "true", refs, null, config, null );
    loggerConfig.addAppender(appender, null, null);
    config.addLogger("StandaloneFileLoggerConfig", loggerConfig);
    ctx.updateLoggers();
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
private static Logger configureLog4j() {
    LoggerContext context = (LoggerContext) LogManager.getContext();
    Configuration config = context.getConfiguration();

    PatternLayout layout = PatternLayout.createLayout("%m%n", null, null, Charset.defaultCharset(), false, false, null, null);
    Appender appender = ConsoleAppender.createAppender(layout, null, null, "CONSOLE_APPENDER", null, null);
    appender.start();
    AppenderRef ref = AppenderRef.createAppenderRef("CONSOLE_APPENDER", null, null);
    AppenderRef[] refs = new AppenderRef[]{ref};
    LoggerConfig loggerConfig = LoggerConfig.createLogger("false", Level.INFO, "CONSOLE_LOGGER", "com", refs, null, null, null);
    loggerConfig.addAppender(appender, null, null);

    config.addAppender(appender);
    config.addLogger("Main.class", loggerConfig);
    context.updateLoggers(config);
    return LogManager.getContext().getLogger("Main.class");
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
public static void bindLogger() {
    LoggerContext context = (LoggerContext) LogManager.getContext(false);
    Configuration config = context.getConfiguration();

    Map<String, ESLogger> loggers = Maps.newConcurrentHashMap();
    Appender appender = new AbstractAppender("", null, null) {
        @Override
        public void append(LogEvent event) {
            String name = event.getLoggerName();
            ESLogger logger = loggers.computeIfAbsent(name, key -> new ESLogger(key, null, (LoggerImpl) LoggerFactory.getLogger(key)));
            logger.log(event.getLevel(), event.getMarker(), event.getMessage(), event.getThrown());
        }
    };
    appender.start();
    config.addAppender(appender);

    LoggerConfig loggerConfig = new LoggerConfig("", Level.ALL, false);
    loggerConfig.addAppender(appender, null, null);
    config.addLogger("", loggerConfig);
    context.updateLoggers();
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
/**
 * <p>
 * This method loads the required properties into log4j for the logger
 * </p>
 * 
 * @param logFileDir
 *            Log file directory
 * @param taskAttemptID
 *            The task attempt id
 * 
 * @throws IOException
 *             If any error occurs
 * @throws URISyntaxException
 * @throws SAXException
 * @throws ParserConfigurationException
 * @throws TransformerException
 */
public static void loadLogger(String logFileDir, String taskAttemptID) throws IOException, URISyntaxException, ParserConfigurationException,
		SAXException, TransformerException {
    LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    ctx.reconfigure();
       Configuration config = ctx.getConfiguration();
       MemoryMappedFileAppender memoryMappedfileAppender = createMemoryMappedFileAppender(config, LOG_APPENDER_NAME + taskAttemptID, logFileDir, taskAttemptID, 0);
       memoryMappedfileAppender.start();
    AppenderRef[] ar = new AppenderRef [1];
       ar[0] = AppenderRef.createAppenderRef(LOG_APPENDER_NAME + taskAttemptID , Level.INFO, null);
       LoggerConfig lgf = LoggerConfig.createLogger("false",Level.INFO , LOG_CATEGORY + taskAttemptID , null, ar, null, config, null);
       config.addLogger(LOG_CATEGORY + taskAttemptID, lgf);
       ctx.getLogger(LOG_CATEGORY + taskAttemptID).addAppender(memoryMappedfileAppender);
       ctx.updateLoggers();
       ctx.start();
	mapReduceLoggers = new ArrayList<Logger>(1);
	mapReduceLoggers.add(LogManager.getLogger(LOG_CATEGORY + taskAttemptID));
	LOG.debug("Finished loading logger");

}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
public static void setLevel(Logger logger, Level level) {
	LoggerContext ctx = (LoggerContext) LogManager.getContext(StartServlet.class.getClassLoader(), false);
	Configuration config = ctx.getConfiguration();

	LoggerConfig loggerConfig = new LoggerConfig();
	loggerConfig.setLevel(level);
	
	config.removeLogger(logger.getName());
	config.addLogger(logger.getName(), loggerConfig);
	
	ctx.updateLoggers(config);
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
/**
 * Get the logger used for output
 *
 * @param validatedArgs with output file, silent, and verbose options that
 *                      are used to configure the logger
 * @return Logger with dynamically-generated configuration
 */
public static Logger getLogger(ValidatedArgs validatedArgs) {
    // This approach is ugly, but it circumvents the need for multiple log4j
    // configuration files and simplifies writing results to the console and the output file
    // Silence StatusLogger
    System.setProperty("org.apache.logging.log4j.simplelog.StatusLogger.level", "FATAL");
    // Setup context
    LoggerContext loggerContext = (LoggerContext) LogManager.getContext(false);
    Configuration configuration = loggerContext.getConfiguration();
    // Define layout
    PatternLayout patternLayout = PatternLayout.newBuilder()
            .withConfiguration(configuration)
            // uncomment this pattern for debugging
            //.withPattern("%d{ISO8601} [%level] [%F:%L] %msg%n")
            .build();
    // Add appenders
    AppenderRef[] appenderRefs;
    //// Create console appender unless silent
    ConsoleAppender consoleAppender = null;
    AppenderRef consoleAppenderRef = null;
    if (!validatedArgs.silent) {
        consoleAppender = ConsoleAppender.newBuilder()
                .setConfiguration(configuration)
                .withLayout(patternLayout)
                .withName(CONSOLE_APPENDER)
                .build();
        consoleAppender.start();
        configuration.addAppender(consoleAppender);
        consoleAppenderRef = AppenderRef.createAppenderRef(CONSOLE_APPENDER, null, null);
    }
    //// Create file appender if output file specified
    FileAppender fileAppender = null;
    AppenderRef fileAppenderRef = null;
    if (validatedArgs.outputFile != null) {
        fileAppender = FileAppender.newBuilder()
                .setConfiguration(configuration)
                .withLayout(patternLayout)
                .withName(FILE_APPENDER)
                .withFileName(validatedArgs.outputFile.getAbsolutePath())
                .build();
        fileAppender.start();
        configuration.addAppender(fileAppender);
        fileAppenderRef = AppenderRef.createAppenderRef(FILE_APPENDER, null, null);
    }
    if ((consoleAppenderRef != null) && (fileAppenderRef != null)) {
        appenderRefs = new AppenderRef[]{consoleAppenderRef, fileAppenderRef};
    } else if (consoleAppenderRef != null) {
        appenderRefs = new AppenderRef[]{consoleAppenderRef};
    } else if (fileAppenderRef != null) {
        appenderRefs = new AppenderRef[]{fileAppenderRef};
    } else {
        throw new IllegalStateException("At least one appender must be configured to provide output!");
    }
    // Build and update the LoggerConfig
    Level levelToUse = validatedArgs.verbose ? VERBOSE_LEVEL : DEFAULT_LEVEL;
    LoggerConfig loggerConfig = LoggerConfig.createLogger(false, levelToUse, LOGGER_NAME, "true", appenderRefs, null, configuration, null);
    if (consoleAppender != null) {
        loggerConfig.addAppender(consoleAppender, null, null);
    }
    if (fileAppender != null) {
        loggerConfig.addAppender(fileAppender, null, null);
    }
    configuration.addLogger(LOGGER_NAME, loggerConfig);
    loggerContext.updateLoggers();
    return (Logger) LogManager.getLogger(LOGGER_NAME);
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
/**
	 * {@inheritDoc}
	 * @see com.heliosapm.streams.tracing.AbstractMetricWriter#configure(java.util.Properties)
	 */
	@Override
	public void configure(final Properties config) {				
		super.configure(config);
		final String loggerName = ConfigurationHelper.getSystemThenEnvProperty(CONFIG_LOGGER_NAME, null, config);
		
		if(loggerName==null || !LogManager.getContext(true).hasLogger(loggerName)) {
			/* 
			 * ===================================================
			 * FIXME:  this is super ugly
			 * ===================================================
			 * TODO:
			 *  - log4j2 async appender
			 *  - low gc message objects
			 */
			final String entryPrefix = ConfigurationHelper.getSystemThenEnvProperty(CONFIG_ENTRY_PREFIX, DEFAULT_ENTRY_PREFIX, config);
			this.config.put("entryPrefix", entryPrefix);
			final String entrySuffix = ConfigurationHelper.getSystemThenEnvProperty(CONFIG_ENTRY_SUFFIX, DEFAULT_ENTRY_SUFFIX, config);
			this.config.put("entrySuffix", entrySuffix);
			final boolean randomAccessFile = ConfigurationHelper.getBooleanSystemThenEnvProperty(CONFIG_RA_FILE, DEFAULT_RA_FILE, config);
			this.config.put("randomAccessFile", randomAccessFile);
			final String fileName = ConfigurationHelper.getSystemThenEnvProperty(CONFIG_FILE_NAME, DEFAULT_FILE_NAME, config);
			this.config.put("fileName", fileName);
			final File file = new File(fileName);
			final File dir = file.getParentFile();
			if(dir.exists()) {
				if(!dir.isDirectory()) throw new IllegalArgumentException("The logging directory is a file [" + dir + "]");
			} else {
				if(!dir.mkdirs()) throw new IllegalArgumentException("Cannot create the logging directory [" + dir + "]");
			}
			LoggerContext context= (LoggerContext) LogManager.getContext();
	        Configuration loggingConfig = context.getConfiguration();
	        PatternLayout layout= PatternLayout.createLayout(entryPrefix + "%m" + entrySuffix + "%n" , null, loggingConfig, null, UTF8, false, false, null, null);
	        
	        
	        final DefaultRolloverStrategy strategy = DefaultRolloverStrategy.createStrategy("10", "1", null, null, null, true, loggingConfig);
//	        final int lastIndex = fileName.lastIndexOf('.');
	        final String format = ConfigurationHelper.getSystemThenEnvProperty(CONFIG_ROLL_PATTERN, DEFAULT_ROLL_PATTERN, config);
	        this.config.put("format", format);
	        final StringBuilder b = new StringBuilder(fileName).append(format);
//	        if(lastIndex==-1) {
//	        	b.append(".").append(format);
//	        } else {
//	        	b.insert(lastIndex, format);
//	        }
	        final String rolledFileFormat = b.toString();
	        final TriggeringPolicy trigger = TimeBasedTriggeringPolicy.createPolicy("1", "true");
	        
	        if(randomAccessFile) {
	        	appender = createRollingRandomAccessFileAppender(fileName, loggingConfig, layout, strategy, rolledFileFormat, trigger);
	        } else {
	        	appender = createRollingFileAppender(fileName, loggingConfig, layout, strategy, rolledFileFormat, trigger);
	        }
	        loggingConfig.addAppender(appender);
	        AppenderRef ref = AppenderRef.createAppenderRef(getClass().getSimpleName(), Level.INFO, null);
	        AppenderRef[] refs = new AppenderRef[] { ref };
	        LoggerConfig loggerConfig = LoggerConfig.createLogger(
	        		false, 
	        		Level.INFO, 
	        		getClass().getSimpleName() + "Logger",  
	        		"false", refs, null, loggingConfig, null);
	        loggerConfig.addAppender(appender, Level.INFO, null);
	        loggingConfig.addLogger(getClass().getSimpleName() + "Logger", loggerConfig);
	        context.updateLoggers();	        
	        org.apache.logging.log4j.core.Logger xlogger = 	context.getLogger(getClass().getName() + "Logger");
	        for(Appender app: xlogger.getAppenders().values()) {
	        	xlogger.removeAppender(app);
	        }
	        xlogger.addAppender(appender);
	        metricLog = context.getLogger(getClass().getName() + "Logger");
		} else {
			metricLog = LogManager.getLogger(loggerName);
		}
	}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
@SuppressWarnings({ "rawtypes", "unchecked" })
public static synchronized void init() {
	final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
	final Configuration config = ctx.getConfiguration();
	Layout layout = PatternLayout.newBuilder().withPattern("%d{yyyy-MM-dd HH:mm:ss}:%p %t %c - %m%n")
			.withConfiguration(config).withRegexReplacement(null).withCharset(null).withAlwaysWriteExceptions(true)
			.withNoConsoleNoAnsi(false).withHeader(null).withFooter(null).build();

	// file info
	Filter fileInfoFilter = ThresholdFilter.createFilter(Level.ERROR, Result.DENY, Result.ACCEPT);
	Appender fileInfoAppender = RollingFileAppender.createAppender(LOG_ROOT + "/zebra.log",
			LOG_ROOT + "/zebra.log.%d{yyyy-MM-dd}.gz", "true", "FileInfo", "true", "4000", "true",
			TimeBasedTriggeringPolicy.createPolicy("1", "true"),
			ZebraRolloverStrategy.createStrategy("30", "1", null, Deflater.DEFAULT_COMPRESSION + "", config),
			layout, fileInfoFilter, "false", null, null, config);
	config.addAppender(fileInfoAppender);
	fileInfoAppender.start();
	AppenderRef fileInfoRef = AppenderRef.createAppenderRef("FileInfo", null, fileInfoFilter);

	// console error
	Appender consoleErrorAppender = ConsoleAppender.createAppender(layout, null, "SYSTEM_ERR", "ConsoleError",
			"false", "false");
	config.addAppender(consoleErrorAppender);
	consoleErrorAppender.start();

	// console info
	Filter consoleWarnFilter = ThresholdFilter.createFilter(Level.ERROR, Result.DENY, Result.NEUTRAL);
	Appender consoleWarnAppender = ConsoleAppender.createAppender(layout, consoleWarnFilter, "SYSTEM_OUT",
			"ConsoleWarn", "false", "false");
	config.addAppender(consoleWarnAppender);
	consoleWarnAppender.start();
	AppenderRef consoleWarnAppenderRef = AppenderRef.createAppenderRef("ConsoleWarn", Level.WARN,
			consoleWarnFilter);
	AppenderRef consoleErrorAppenderRef = AppenderRef.createAppenderRef("ConsoleError", Level.WARN, null);

	AppenderRef[] refs = new AppenderRef[] { consoleErrorAppenderRef, consoleWarnAppenderRef, fileInfoRef };

	LoggerConfig loggerConfig = LoggerConfig.createLogger("false", Level.INFO, "com.dianping.zebra", "true", refs,
			null, config, null);
	loggerConfig.addAppender(consoleErrorAppender, Level.ERROR, null);
	loggerConfig.addAppender(consoleWarnAppender, Level.INFO, null);
	loggerConfig.addAppender(fileInfoAppender, Level.INFO, null);

	config.addLogger("com.dianping.zebra", loggerConfig);

	ctx.updateLoggers();

	context = ctx;
}
 

import org.apache.logging.log4j.core.config.Configuration; //导入方法依赖的package包/类
/**
 * Creates a new file-logger for an addOn. The logger will log to a file with the addOnId as name in the logs folder
 * of Izou
 *
 * @param addOnId the Id of the addOn the logger is created for
 * @param level level of logger (at what level of log the logger should be activated
 * @return the new logger
 */
public synchronized ExtendedLogger createFileLogger(String addOnId, String level) {
    try {
        LoggerContext ctx = LogManager.getContext(false);
        Configuration config = ((org.apache.logging.log4j.core.LoggerContext) ctx).getConfiguration();

        //creates a new pattern layout (what determines how the log is formated, i.e. date, thread etc.)
        Layout layout = PatternLayout.createLayout("%d %-5p [%t] %C{10} (%F:%L) - %m%n", config, null, null, true,
                false, null, null);

        //creates a file appender for the logger (so that it knows what file to log to)
        Appender fileAppender = FileAppender.createAppender("logs" + File.separator + addOnId + ".log", "true",
                "false", "file", "true", "false", "false", "4000", layout, null, "false", null, config);
        fileAppender.start();
        config.addAppender(fileAppender);

        //creates also a console appender for the logger (so that the logger also outputs the log in the console)
        Appender consoleAppender = ConsoleAppender.createAppender(layout, null, "SYSTEM_OUT", "console", null, null);
        consoleAppender.start();
        config.addAppender(consoleAppender);

        //adds appenders to an array called refs. It will later serve as references to the logger as to what
        // appenders it has
        AppenderRef fileRef = AppenderRef.createAppenderRef("file", Level.DEBUG, null);
        AppenderRef consoleRef = AppenderRef.createAppenderRef("console", Level.DEBUG, null);
        AppenderRef[] refs = new AppenderRef[]{fileRef, consoleRef};

        //creates the logger configurations for the logger, where the appender-references are also added
        LoggerConfig loggerConfig = LoggerConfig.createLogger("false", Level.DEBUG, addOnId,
                "true", refs, null, config, null);
        loggerConfig.addAppender(fileAppender, Level.DEBUG, null);
        loggerConfig.addAppender(consoleAppender, Level.DEBUG, null);

        //finally creates the logger and returns it
        config.addLogger(addOnId, loggerConfig);
        ((org.apache.logging.log4j.core.LoggerContext) ctx).updateLoggers();
        ctx.getLogger(addOnId);
        ExtendedLogger logger = ctx.getLogger(addOnId);
        return logger;
    } catch(Exception e) {
        fileLogger.error("Unable to create FileLogger",e);
        return null;
    }
}