org.apache.logging.log4j.LogManager类的使用及代码示例

x33g5p2x  于2022-01-23 转载在 其他  
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本文整理了Java中org.apache.logging.log4j.LogManager类的一些代码示例，展示了LogManager类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。LogManager类的具体详情如下：
包路径：org.apache.logging.log4j.LogManager
类名称：LogManager

LogManager介绍

[英]The anchor point for the logging system. The most common usage of this class is to obtain a named Logger. The method #getLogger() is provided as the most convenient way to obtain a named Logger based on the calling class name. This class also provides method for obtaining named Loggers that use String#format(String,Object...) style messages instead of the default type of parameterized messages. These are obtained through the #getFormatterLogger(Class) family of methods. Other service provider methods are given through the #getContext() and #getFactory() family of methods; these methods are not normally useful for typical usage of Log4j.
[中]测井系统的定位点。此类最常见的用法是获取命名记录器。方法#getLogger（）是根据调用类名获取命名记录器的最方便的方法。此类还提供了获取使用字符串#格式（字符串、对象…）的命名记录器的方法设置消息样式，而不是参数化消息的默认类型。这些是通过#getFormatterLogger（类）方法家族获得的。其他服务提供者方法通过#getContext（）和#getFactory（）方法家族给出；这些方法通常不适用于Log4j的典型用法。

代码示例

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. @Override
  2.   public void run() {
  3.     final Logger logger = LogManager.getLogger("org.apache.logging.log4j.test.WorkerThread");
  4.     logger.debug("Worker is running");
  5.   }
  6. }

代码示例来源：origin: Graylog2/graylog2-server

  1. private void initializeLogging(final Level logLevel) {
  2.   final LoggerContext context = (LoggerContext) LogManager.getContext(false);
  3.   final org.apache.logging.log4j.core.config.Configuration config = context.getConfiguration();
  4.   config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME).setLevel(logLevel);
  5.   config.getLoggerConfig(Main.class.getPackage().getName()).setLevel(logLevel);
  6.   context.updateLoggers(config);
  7. }

代码示例来源：origin: javamelody/javamelody

  1. void register() {
  2.   if (LogManager.getContext(false) instanceof LoggerContext) {
  3.     final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
  4.     if (ctx.getConfiguration() instanceof AbstractConfiguration) {
  5.       final AbstractConfiguration config = (AbstractConfiguration) ctx.getConfiguration();
  6.       final Appender appender = getSingleton();
  7.       appender.start();
  8.       config.addAppender(appender);
  9.       final Logger rootLogger = LogManager.getRootLogger();
  10.       final LoggerConfig loggerConfig = config.getLoggerConfig(rootLogger.getName());
  11.       loggerConfig.addAppender(appender, null, null);
  12.       ctx.updateLoggers();
  13.     }
  14.   }
  15. }

代码示例来源：origin: org.apache.logging.log4j/log4j-api

  1. /**
  2.  * Shutdown the logging system if the logging system supports it.
  3.  * This is equivalent to calling {@code LogManager.shutdown(LogManager.getContext(currentContext))}.
  4.  *
  5.  * This call is synchronous and will block until shut down is complete.
  6.  * This may include flushing pending log events over network connections.
  7.  *
  8.  * @param currentContext if true a default LoggerContext (may not be the LoggerContext used to create a Logger
  9.  *            for the calling class) will be used.
  10.  *            If false the LoggerContext appropriate for the caller of this method is used. For
  11.  *            example, in a web application if the caller is a class in WEB-INF/lib then one LoggerContext may be
  12.  *            used and if the caller is a class in the container's classpath then a different LoggerContext may
  13.  *            be used.
  14.  * @since 2.6
  15.  */
  16. public static void shutdown(final boolean currentContext) {
  17.   shutdown(getContext(currentContext));
  18. }

代码示例来源：origin: javamelody/javamelody

  1. void deregister() {
  2.   if (LogManager.getContext(false) instanceof LoggerContext) {
  3.     final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
  4.     if (ctx.getConfiguration() instanceof AbstractConfiguration) {
  5.       final AbstractConfiguration config = (AbstractConfiguration) ctx.getConfiguration();
  6.       final Appender appender = getSingleton();
  7.       appender.stop();
  8.       config.removeAppender(appender.getName());
  9.       final Logger rootLogger = LogManager.getRootLogger();
  10.       final LoggerConfig loggerConfig = config.getLoggerConfig(rootLogger.getName());
  11.       loggerConfig.removeAppender(appender.getName());
  12.       ctx.updateLoggers();
  13.     }
  14.   }
  15. }

代码示例来源：origin: dadoonet/fscrawler

  1. LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
  2. Configuration config = ctx.getConfiguration();
  3. LoggerConfig loggerConfig = config.getLoggerConfig(FsCrawlerCli.class.getPackage().getName());
  4.     logger.warn("--debug or --trace can't be used when --silent is set. Only silent mode will be activated.");
  5.     logger.warn("--silent is set but no job has been defined. Add a job name or remove --silent option. Exiting.");
  6.     jCommander.usage();
  7.     return;
  8.   LoggerConfig rootLogger = config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME);
  9.   loggerConfig.setLevel(Level.OFF);
  10.   rootLogger.setLevel(Level.OFF);
  11. } else {
  12.   loggerConfig.setLevel(commands.debug ? Level.DEBUG : Level.TRACE);
  13. ctx.updateLoggers();
  14. logger.info("No job specified. Here is the list of existing jobs:");

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. @Test
  2. public void validateXmlSchema() throws Exception {
  3.   final File file = new File("target", "XmlCompactFileAppenderValidationTest.log.xml");
  4.   file.delete();
  5.   final Logger log = LogManager.getLogger("com.foo.Bar");
  6.   log.warn("Message 1");
  7.   log.info("Message 2");
  8.   log.debug("Message 3");
  9.   Configurator.shutdown(this.loggerContext);
  10.   this.validateXmlSchema(file);
  11. }

代码示例来源：origin: apache/hive

  1. Logger logger = LogManager.getLogger(LineageLogger.class);
  2.   (org.apache.logging.log4j.core.Logger) logger;
  3. LoggerConfig loggerConfig = coreLogger.get();
  4. Map<String, Appender> appenders = loggerConfig.getAppenders();
  5. logger.debug("Debug Message Logged !!!");
  6. logger.info("Info Message Logged !!!");
  7.  logger.error(errorString + i,
  8.    new RuntimeException("part of a test"));

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. /**
  2.    * .
  3.    */
  4.   @Test
  5.   public void testCircularCauseExceptions() {
  6.     final Exception e1 = new Exception();
  7.     final Exception e2 = new Exception(e1);
  8.     e1.initCause(e2);
  9.     LogManager.getLogger().error("Error", e1);
  10.   }
  11. }

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. @Test
  2.   public void test1() {
  3.     final Logger logger = LogManager.getLogger(BasicLoggingTest.class.getName());
  4.     logger.debug("debug not set");
  5.     logger.error("Test message");
  6.   }
  7. }

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. @Test
  2.   public void testPropertiesConfiguration() {
  3.     final Configuration config = context.getConfiguration();
  4.     assertNotNull("No configuration created", config);
  5.     assertEquals("Incorrect State: " + config.getState(), config.getState(), LifeCycle.State.STARTED);
  6.     final Map<String, Appender> appenders = config.getAppenders();
  7.     assertNotNull(appenders);
  8.     assertTrue("Incorrect number of Appenders: " + appenders.size(), appenders.size() == 1);
  9.     final Map<String, LoggerConfig> loggers = config.getLoggers();
  10.     assertNotNull(loggers);
  11.     assertTrue("Incorrect number of LoggerConfigs: " + loggers.size(), loggers.size() == 1);
  12.     final Filter filter = config.getFilter();
  13.     assertNotNull("No Filter", filter);
  14.     assertTrue("Not a Threshold Filter", filter instanceof ThresholdFilter);
  15.     final Logger logger = LogManager.getLogger(getClass());
  16.     logger.info("Welcome to Log4j!");
  17.   }
  18. }

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. private void validateAppender(final LoggerContext loggerContext, final String expectedFilePattern) {
  2.     final RollingFileAppender appender = loggerContext.getConfiguration().getAppender("fooAppender");
  3.     Assert.assertNotNull(appender);
  4.     Assert.assertEquals(expectedFilePattern, appender.getFilePattern());
  5.     LogManager.getLogger("root").info("just to show it works.");
  6.   }
  7. }

代码示例来源：origin: torodb/stampede

  1. ex.getErrorMessages().stream().forEach(m -> {
  2.   if (m.getCause() != null) {
  3.    LOGGER.error(m.getCause().getMessage());
  4.   } else {
  5.    LOGGER.error(m.getMessage());
  6.  LogManager.shutdown();
  7.  System.exit(1);
  8. LOGGER.debug("Fatal error on initialization", ex);
  9. Throwable rootCause = Throwables.getRootCause(ex);
  10. String causeMessage = rootCause.getMessage() != null ? rootCause.getMessage() : 
  11.   "internal error";
  12. LogManager.shutdown();
  13. JCommander.getConsole().println("Fatal error while ToroDB was starting: " + causeMessage);
  14. System.exit(1);

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. /**
  2.    * Validates that the code pattern we use to add an appender on the fly
  3.    * works with a basic appender that is not the new OutputStream appender or
  4.    * new Writer appender.
  5.    */
  6.   @Test
  7.   public void testUpdatePatternWithFileAppender() {
  8.     final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
  9.     final Configuration config = ctx.getConfiguration();
  10.     // @formatter:off
  11.     final Appender appender = FileAppender.newBuilder()
  12.       .withFileName("target/" + getClass().getName() + ".log")
  13.       .withAppend(false)
  14.       .withName("File")
  15.       .withIgnoreExceptions(false)
  16.       .withBufferedIo(false)
  17.       .withBufferSize(4000)
  18.       .setConfiguration(config)
  19.       .build();
  20.     // @formatter:on
  21.     appender.start();
  22.     config.addAppender(appender);
  23.     ConfigurationTestUtils.updateLoggers(appender, config);
  24.     LogManager.getLogger().error("FOO MSG");
  25.   }
  26. }

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. ThreadContext.put("KEY", "mapvalue");
  2. final Logger log = LogManager.getLogger("com.foo.Bar");
  3. final LoggerContext loggerContext = LogManager.getContext(false);
  4. final String loggerContextName = loggerContext.getClass().getSimpleName();
  5. RingBufferAdmin ring;
  6.     ThreadContext.remove("count");
  7.   log.info("{} {} {} i={}", contextImpl, contextMap(), loggerContextName, Unbox.box(i));
  8. LogManager.shutdown();

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. public static void main(final String[] args) {
  2.   MainMapLookup.setMainArguments(args);
  3.   try (final LoggerContext ctx = Configurator.initialize(MainInputArgumentsLookupTest.class.getName(),
  4.       "target/test-classes/log4j-lookup-main.xml")) {
  5.     LogManager.getLogger().error("this is an error message");
  6.   }
  7. }

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. @Override
  2. protected void log(final int runNumber) {
  3.   if (runNumber == 2) {
  4.     // System.out.println("Set a breakpoint here.");
  5.   }
  6.   final Logger logger = LogManager.getLogger("auditcsvfile");
  7.   final int val1 = 9, val2 = 11, val3 = 12;
  8.   logger.info("Info Message!", val1, val2, val3);
  9.   logger.info("Info Message!", val1, val2, val3);
  10.   logger.info("Info Message!", val1, val2, val3);
  11. }

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. private void validate(final Configuration config) {
  2.   assertNotNull(config);
  3.   assertNotNull(config.getName());
  4.   assertFalse(config.getName().isEmpty());
  5.   assertNotNull("No configuration created", config);
  6.   assertEquals("Incorrect State: " + config.getState(), config.getState(), LifeCycle.State.STARTED);
  7.   final Map<String, Appender> appenders = config.getAppenders();
  8.   assertNotNull(appenders);
  9.   assertTrue("Incorrect number of LoggerConfigs: " + loggers.size(), loggers.size() == 2);
  10.   final LoggerConfig rootLoggerConfig = loggers.get("");
  11.   assertEquals(Level.ERROR, rootLoggerConfig.getLevel());
  12.   assertFalse(rootLoggerConfig.isIncludeLocation());
  13.   final LoggerConfig loggerConfig = loggers.get("org.apache.logging.log4j");
  14.   assertEquals(Level.DEBUG, loggerConfig.getLevel());
  15.   assertTrue(loggerConfig.isIncludeLocation());
  16.   final Filter filter = config.getFilter();
  17.   assertEquals("Panic", customLevel.getLevelName());
  18.   assertEquals(17, customLevel.getIntLevel());
  19.   final Logger logger = LogManager.getLogger(getClass());
  20.   logger.info("Welcome to Log4j!");

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. final File file = new File("target/test-classes/log4j2-config.xml");
  2. assertTrue("setLastModified should have succeeded.", file.setLastModified(System.currentTimeMillis() - 120000));
  3. ctx = Configurator.initialize("Test1", "target/test-classes/log4j2-config.xml");
  4. final Logger logger = LogManager.getLogger("org.apache.test.TestConfigurator");
  5. Configuration config = ctx.getConfiguration();
  6. assertNotNull("No configuration", config);
  7. assertEquals("Incorrect Configuration.", CONFIG_NAME, config.getName());
  8. final Map<String, Appender> map = config.getAppenders();
  9. assertNotNull("Appenders map should not be null.", map);
  10. assertThat(map, hasSize(greaterThan(0)));
  11. TimeUnit.SECONDS.sleep(config.getWatchManager().getIntervalSeconds()+1);
  12. for (int i = 0; i < 17; ++i) {
  13.   logger.debug("Test message " + i);
  14. if (is(theInstance(config)).matches(ctx.getConfiguration())) {
  15.   Thread.sleep(500);
  16. final Configuration newConfig = ctx.getConfiguration();
  17. assertThat("Configuration not reset", newConfig, is(not(theInstance(config))));
  18. Configurator.shutdown(ctx);
  19. config = ctx.getConfiguration();
  20. assertEquals("Unexpected Configuration.", NullConfiguration.NULL_NAME, config.getName());

代码示例来源：origin: org.apache.logging.log4j/log4j-core

  1. @Test
  2. public void testConsecutiveReconfigure() throws Exception {
  3.   System.setProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY,
  4.       "AsyncLoggerConfigTest2.xml");
  5.   final File file = new File("target", "AsyncLoggerConfigTest2.log");
  6.   assertTrue("Deleted old file before test", !file.exists() || file.delete());
  7.   
  8.   final Logger log = LogManager.getLogger("com.foo.Bar");
  9.   final String msg = "Message before reconfig";
  10.   log.info(msg);
  11.   final LoggerContext ctx = LoggerContext.getContext(false);
  12.   ctx.reconfigure();
  13.   ctx.reconfigure();
  14.   
  15.   final String msg2 = "Message after reconfig";
  16.   log.info(msg2);
  17.   CoreLoggerContexts.stopLoggerContext(file); // stop async thread
  18.   final BufferedReader reader = new BufferedReader(new FileReader(file));
  19.   final String line1 = reader.readLine();
  20.   final String line2 = reader.readLine();
  21.   reader.close();
  22.   file.delete();
  23.   assertNotNull("line1", line1);
  24.   assertNotNull("line2", line2);
  25.   assertTrue("line1 " + line1, line1.contains(msg));
  26.   assertTrue("line2 " + line2, line2.contains(msg2));
  27. }

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