org.apache.logging.log4j.LogManager Java Examples

@Override
public PoloniexLendingResult toggleAutoRenew(String orderNumber)
{
    long start = System.currentTimeMillis();
    PoloniexLendingResult result = null;
    try
    {
        String res = tradingClient.toggleAutoRenew(orderNumber);
        result = mapper.mapLendingResult(res);
        LogManager.getLogger(PoloniexLendingService.class).trace("Executed and mapped toggleAutoRenew for {} in {} ms", orderNumber, System.currentTimeMillis() - start);
    }
    catch (Exception ex)
    {
        LogManager.getLogger(PoloniexLendingService.class).error("Error executing toggleAutoRenew for {} - {}", orderNumber, ex.getMessage());
    }

    return result;
}
 

public void test(final String[] args) {
    System.setProperty("log4j.skipJansi", "false"); // LOG4J2-2087: explicitly enable
    // System.out.println(System.getProperty("java.class.path"));
    final String config = args == null || args.length == 0 ? "target/test-classes/log4j2-console-style-ansi.xml"
            : args[0];
    try (final LoggerContext ctx = Configurator.initialize(ConsoleAppenderAnsiMessagesMain.class.getName(), config)) {
        final Logger logger = LogManager.getLogger(ConsoleAppenderAnsiStyleLayoutMain.class);
        logger.fatal("Fatal message.");
        logger.error("Error message.");
        logger.warn("Warning message.");
        logger.info("Information message.");
        logger.debug("Debug message.");
        logger.trace("Trace message.");
        logger.error("Error message.", new IOException("test"));
    }
}
 

public FocusUpgradeType(int id, ResourceLocation icon, String name, String text, AspectList aspects) {
	this.id = (short) id;	
	this.icon = icon;
	this.name = name;
	this.text = text;
	this.aspects = aspects;
	
	if (id<types.length && types[id]!=null) {
		LogManager.getLogger("THAUMCRAFT").fatal("Focus Upgrade id "+id+" already occupied. Ignoring.");
		return;
	}
	
	// allocate space
	if (id>=types.length) {
		FocusUpgradeType[] temp = new FocusUpgradeType[id+1];
		System.arraycopy(types, 0, temp, 0, types.length);
		types = temp;
	}
	
	types[id] = this;
}
 

@Override
public void startUp(ServletContext servletContext) {
    try {
        initializeJPA();
    } catch (PersistenceException e) {
        //fix for MCR-1236
        if (MCRConfiguration2.getBoolean("MCR.Persistence.Database.Enable").orElse(true)) {
            LogManager.getLogger()
                .error(() -> "Could not initialize JPA. Database access is disabled in this session.", e);
            MCRConfiguration2.set("MCR.Persistence.Database.Enable", String.valueOf(false));
        }
        MCREntityManagerProvider.init(e);
        return;
    }
    Metamodel metamodel = MCREntityManagerProvider.getEntityManagerFactory().getMetamodel();
    checkHibernateMappingConfig(metamodel);
    LogManager.getLogger()
        .info("Mapping these entities: {}", metamodel.getEntities()
            .stream()
            .map(EntityType::getJavaType)
            .map(Class::getName)
            .collect(Collectors.toList()));
    MCRShutdownHandler.getInstance().addCloseable(new MCRJPAShutdownProcessor());
}
 

@Test
public void testGetLoggerWithTaglibLogger() throws Exception {
    this.setUp(null);

    final AbstractLogger wrapped = (AbstractLogger)LogManager.getLogger("testGetLoggerWithTaglibLogger");
    final Log4jTaglibLogger logger = new Log4jTaglibLogger(wrapped, wrapped.getName(), wrapped.getMessageFactory());

    this.tag.setLogger(logger);
    Log4jTaglibLogger returned = this.tag.getLogger();

    assertNotNull("The first returned logger should not be null.", returned);
    assertSame("The first returned logger should be the same as the set.", logger, returned);
    assertEquals("The name is not correct.", "testGetLoggerWithTaglibLogger", returned.getName());

    returned = this.tag.getLogger();

    assertNotNull("The second returned logger should not be null.", returned);
    assertSame("The second returned logger should be the same as the set.", logger, returned);
}
 

/**
 * @param name
 *            the name of the java class or java package to set the log
 *            level for
 * @param logLevelToSet
 *            the log level to set e.g. TRACE, DEBUG, INFO, WARN, ERROR and
 *            FATAL, providing any other value will lead to DEBUG as new log
 *            level
 */
@MCRCommand(syntax = "change log level of {0} to {1}",
    help = "{0} the package or class name for which to change the log level, {1} the log level to set.",
    order = 10)
public static synchronized void changeLogLevel(String name, String logLevelToSet) {
    LOGGER.info("Setting log level for \"{}\" to \"{}\"", name, logLevelToSet);
    Level newLevel = Level.getLevel(logLevelToSet);
    if (newLevel == null) {
        LOGGER.error("Unknown log level \"{}\"", logLevelToSet);
        return;
    }
    Logger log = "ROOT".equals(name) ? LogManager.getRootLogger() : LogManager.getLogger(name);
    if (log == null) {
        LOGGER.error("Could not get logger for \"{}\"", name);
        return;
    }
    LOGGER.info("Change log level from {} to {}", log.getLevel(), newLevel);
    Configurator.setLevel(log.getName(), newLevel);
}
 

/**
 * @since 3.0
 */
@PluginFactory
public static LoggerConfig createLogger(
        @PluginAttribute final String additivity,
        @PluginAttribute final Level level,
        @PluginAttribute final String includeLocation,
        @PluginElement final AppenderRef[] refs,
        @PluginElement final Property[] properties,
        @PluginConfiguration final Configuration config,
        @PluginElement final Filter filter) {
    final List<AppenderRef> appenderRefs = Arrays.asList(refs);
    final Level actualLevel = level == null ? Level.ERROR : level;
    final boolean additive = Booleans.parseBoolean(additivity, true);
    return new AsyncLoggerConfig(LogManager.ROOT_LOGGER_NAME, appenderRefs, filter, actualLevel, additive,
            properties, config, AsyncLoggerConfig.includeLocation(includeLocation));
}
 

@Test
public void messageFactoryTest() {

    System.setProperty("log4j2.enable.threadlocals", "true");
    System.setProperty("log4j2.enable.direct.encoders", "true");
    System.setProperty("Log4jContextSelector", "org.apache.logging.log4j.core.async.AsyncLoggerContextSelector");

    createLoggerProgrammatically(
            () -> createElasticsearchAppenderBuilder(true, false, secure),
            configuration -> configuration.getAsyncLoggerConfigDelegate()
    );

    ObjectMapper objectMapper = configuredMapper();
    Logger logger = LogManager.getLogger(DEFAULT_LOGGER_NAME,
            new SerializedMessageFactory(objectMapper));

    logger.info(new LogObject("Hello, World!"));

}
 

@Override
public void aroundWriteTo(WriterInterceptorContext writerInterceptorContext)
    throws IOException, WebApplicationException {
    writerInterceptorContext
        .setOutputStream(new ClientAbortExceptionOutputStream(writerInterceptorContext.getOutputStream()));
    try {
        writerInterceptorContext.proceed();
    } catch (Exception e) {
        for (Throwable cause = e; cause != null; cause = cause.getCause()) {
            if (cause instanceof ClientAbortException) {
                LogManager.getLogger().info("Client closed response too early.");
                return;
            }
        }
        throw e;
    }
}
 

@After
@Override
public void tearDown() throws Exception {
    try {
        startNewTransaction();
        MCRCategoryImpl rootNode = getRootCategoryFromSession();
        MCRCategoryImpl rootNode2 = (MCRCategoryImpl) DAO.getCategory(category.getId(), -1);
        if (rootNode != null) {
            try {
                checkLeftRightLevelValue(rootNode, 0, 0);
                checkLeftRightLevelValue(rootNode2, 0, 0);
            } catch (AssertionError e) {
                LogManager.getLogger().error("Error while checking left, right an level values in database.");
                new XMLOutputter(Format.getPrettyFormat())
                    .output(MCRCategoryTransformer.getMetaDataDocument(rootNode, false), System.out);
                printCategoryTable();
                throw e;
            }
        }
    } finally {
        super.tearDown();
    }
}
 

/**
 * This is primarily for tests to insure that log messages don't bleed from one test case to another, see:
 * SOLR-13268.
 *
 * However, if there are situations where we want to insure that all log messages for all loggers are flushed,
 * this method can be called by anyone. It should _not_ affect Solr in any way except, perhaps, a slight delay
 * while messages are being flushed.
 *
 * Expert, there are rarely good reasons for this to be called outside of the test framework. If you are tempted to
 * call this for running Solr, you should probably be using synchronous logging.
 */
@SuppressForbidden(reason = "Legitimate log4j2 access")
public static void flushAllLoggers() {
  if (!isLog4jActive()) {
    logNotSupported("Not running log4j2, could not call shutdown for async logging.");
    return;
  }

  final LoggerContext logCtx = ((LoggerContext) LogManager.getContext(false));
  for (final org.apache.logging.log4j.core.Logger logger : logCtx.getLoggers()) {
    for (final Appender appender : logger.getAppenders().values()) {
      if (appender instanceof AbstractOutputStreamAppender) {
        ((AbstractOutputStreamAppender) appender).getManager().flush();
      }
    }
  }
}
 

@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
    Produces produces = resourceInfo.getResourceMethod().getAnnotation(Produces.class);
    if (produces == null || Stream.of(produces.value()).noneMatch(MediaType.SERVER_SENT_EVENTS::equals)) {
        return;
    }
    LogManager.getLogger().info("Has Session? {}", MCRSessionMgr.hasCurrentSession());
    if (MCRSessionMgr.hasCurrentSession()) {
        MCRSession currentSession = MCRSessionMgr.getCurrentSession();
        if (currentSession.isTransactionActive()) {
            currentSession.commitTransaction();
        }
        MCRSessionMgr.releaseCurrentSession();
        currentSession.close();
    }

}
 

/** {@inheritDoc} */
@Override public void setNodeId(UUID nodeId) {
    A.notNull(nodeId, "nodeId");

    this.nodeId = nodeId;

    // Set nodeId as system variable to be used at configuration.
    System.setProperty(NODE_ID, U.id8(nodeId));

    if (inited) {
        final LoggerContext ctx = impl.getContext();

        synchronized (mux) {
            inited = false;
        }

        addConsoleAppenderIfNeeded(new C1<Boolean, Logger>() {
            @Override public Logger apply(Boolean init) {
                if (init)
                    ctx.reconfigure();

                return (Logger)LogManager.getRootLogger();
            }
        });
    }
}
 

/**
 * Allocates a discovery thread.
 */
protected DiscoveryThread() {
	this.logger = LogManager.getLogger(DiscoveryThread.class);
	this.bootstrap = new Bootstrap();
	this.group = new NioEventLoopGroup();
	this.handler = new DiscoveryHandler();
	bootstrap.channel(NioDatagramChannel.class).group(group).handler(handler);
	bootstrap.option(ChannelOption.SO_BROADCAST, true).option(ChannelOption.SO_REUSEADDR, false);
	try {
		this.channel = bootstrap.bind(0).sync().channel();
	} catch (InterruptedException e) {
		this.interrupt(); // Cause thread to immediately break out of loop
		Discovery.setDiscoveryMode(DiscoveryMode.DISABLED);
		logger.error("Failed to bind channel necessary for broadcasting pings, disabled discovery system");
	}
	this.setName(logger.getName());
}
 

@Test
public void testLogJsonArgument() throws InterruptedException {
    final ListAppender appender = (ListAppender) init.getAppender("List");
    appender.countDownLatch = new CountDownLatch(4);
    appender.clear();
    final Logger logger = (Logger) LogManager.getRootLogger();
    final String json = "{\"id\":10,\"name\":\"Alice\"}";
    logger.error("log:{}", json);
    // wait until background thread finished processing
    final int msgCount = 1;
    if (appender.getMessages().size() < msgCount) {
        appender.countDownLatch.await(5, TimeUnit.SECONDS);
    }
    assertEquals("Background thread did not finish processing: msg count", msgCount, appender.getMessages().size());

    // don't stop appender until background thread is done
    appender.stop();
    final List<String> list = appender.getMessages();
    final String eventStr = list.get(0).toString();
    Assert.assertTrue(eventStr, eventStr.contains(json));
}
 

@Test
public void doNotProcessPlaceholdersTwice() throws Exception {
    final File file = new File("target", "AsyncAppenderConfigTest-LOG4J2-2032.log");
    assertTrue("Deleted old file before test", !file.exists() || file.delete());

    final Logger log = LogManager.getLogger("com.foo.Bar");
    log.info("Text containing curly braces: {}", "Curly{}");
    CoreLoggerContexts.stopLoggerContext(file); // stop async thread

    final BufferedReader reader = new BufferedReader(new FileReader(file));
    try {
        final String line1 = reader.readLine();
        System.out.println(line1);
        assertTrue("line1 correct", line1.contains(" Text containing curly braces: Curly{} "));
    } finally {
        reader.close();
        file.delete();
    }
}
 

@Test
public void messageFactoryTest() {

    System.setProperty("log4j2.enable.threadlocals", "true");
    System.setProperty("log4j2.enable.direct.encoders", "true");
    System.setProperty("Log4jContextSelector", "org.apache.logging.log4j.core.async.AsyncLoggerContextSelector");

    createLoggerProgrammatically(
            () -> createElasticsearchAppenderBuilder(true, false, secure),
            config -> config.getAsyncLoggerConfigDelegate());

    ObjectMapper objectMapper = configuredMapper();
    Logger logger = LogManager.getLogger(DEFAULT_LOGGER_NAME,
            new SerializedMessageFactory(objectMapper));

    logger.info(new LogObject("Hello, World!"));

}
 

private Config() {
  this.c = ConfigFactory.load();
  final String logLevel = c.getString("log-level");
  Level level = Level.toLevel(logLevel);
  final String lowerLevel = logLevel.toLowerCase();

  if (lowerLevel.equals("debug") || lowerLevel.equals("telemetry")) {
    this.debug = true;
  }
  // force change
  Object ctx = LogManager.getContext(false);
  if (ctx instanceof LoggerContext) {
    LoggerContext context = (LoggerContext) ctx;
    Configuration configuration = context.getConfiguration();
    LoggerConfig loggerConfig = configuration.getLoggerConfig(LogManager.ROOT_LOGGER_NAME);
    loggerConfig.setLevel(level);
    context.updateLoggers();
  }
}
 

@BeforeClass
public static void beforeClass() throws IOException, InterruptedException {
    server1 = new TestSocketServer(0);
    server2 = new TestSocketServer(0);
    server1.start();
    server2.start();
    Thread.sleep(100);
    ports = new int[] { server1.getPort(), server2.getPort()};
    resolver.ports = ports;
    TcpSocketManager.setHostResolver(resolver);
    loggerContext = Configurator.initialize("SocketReconnectTest", SocketReconnectTest.class.getClassLoader(),
            CONFIG);
    logger = LogManager.getLogger(SocketReconnectTest.class);
    server1.shutdown();
    server1.join();
    server2.shutdown();
    server2.join();
    server1 = null;
    server2 = null;
    Thread.sleep(100);
    list.clear();
}
 

@Test
public void testRefreshMinimalCodeStopStart() {
	Logger log = LogManager.getLogger(this.getClass());
	final LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
	ctx.stop();
	ctx.start();

	log.error("Info message");
}
 

@Test
public void testFromClassPathWithClassPathPrefix() throws Exception {
    ctx = Configurator.initialize("Test1", "classpath:log4j2-config.xml");
    LogManager.getLogger("org.apache.test.TestConfigurator");
    Configuration config = ctx.getConfiguration();
    assertNotNull("No configuration", config);
    assertEquals("Incorrect Configuration.", CONFIG_NAME, config.getName());
    final Map<String, Appender> map = config.getAppenders();
    assertNotNull("Appenders map should not be null.", map);
    assertThat(map, hasSize(greaterThan(0)));
    assertThat("Wrong configuration", map, hasKey("List"));
    Configurator.shutdown(ctx);
    config = ctx.getConfiguration();
    assertEquals("Incorrect Configuration.", NullConfiguration.NULL_NAME, config.getName());
}
 

@BeforeClass public static void beforeClass() {
    // Our choice.
    System.setProperty("log4j.configuration", "set");

    LoggerContext context = (org.apache.logging.log4j.core.LoggerContext) LogManager.getContext(false);
    File file = new File("src/test/resources/log4j2-test.xml");

    // this will force a reconfiguration
    context.setConfigLocation(file.toURI());
}
 

public void test() {
	System.out.println("hello world");
	System.setOut(new PrintStream(System.out) {
   		@Override
   		public void println(String x) {
   			StackTraceElement[] ste=Thread.currentThread().getStackTrace();
   			String line=ste[2].toString();
   			LogManager.getFormatterLogger("console to log").info(line+" - "+x);
   			LogManager.getFormatterLogger(Thread.currentThread()).info(line + " - " + x);
   		}
   	});
	System.out.println("hello world");
}
 

@BeforeClass
public static void setupClass() throws Exception {
    catalogReader = new StringCatalogReader();
    LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    Configuration config = ctx.getConfiguration();
    for (Map.Entry<String, Appender> entry : config.getAppenders().entrySet()) {
        if (entry.getKey().equals("List")) {
            app = (ListAppender) entry.getValue();
            break;
        }
    }
    assertNotNull("No Appender", app);
}
 

private void initializeJndi(final String location) {
    final URI configLocation = getConfigURI(location);

    if (this.name == null) {
        throw new IllegalStateException("A log4jContextName context parameter is required");
    }

    LoggerContext context;
    final LoggerContextFactory factory = LogManager.getFactory();
    if (factory instanceof Log4jContextFactory) {
        final ContextSelector selector = ((Log4jContextFactory) factory).getSelector();
        if (selector instanceof NamedContextSelector) {
            this.namedContextSelector = (NamedContextSelector) selector;
            context = this.namedContextSelector.locateContext(this.name, this.servletContext, configLocation);
            ContextAnchor.THREAD_CONTEXT.set(context);
            if (context.isInitialized()) {
                context.start();
            }
            ContextAnchor.THREAD_CONTEXT.remove();
        } else {
            LOGGER.warn("Potential problem: Selector is not an instance of NamedContextSelector.");
            return;
        }
    } else {
        LOGGER.warn("Potential problem: LoggerContextFactory is not an instance of Log4jContextFactory.");
        return;
    }
    this.loggerContext = context;
    LOGGER.debug("Created logger context for [{}] using [{}].", this.name, context.getClass().getClassLoader());
}
 

private static void configureLogMetrics() {
  InstrumentedAppender appender = InstrumentedAppender.createAppender("PROMETHEUS");
  appender.start();
  LoggerContext context = (LoggerContext) LogManager.getContext(false);
  Configuration config = context.getConfiguration();
  config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME).addAppender(appender, null, null);
  context.updateLoggers(config);
}
 

/**
 * .
 */
@Test
public void testCircularCauseExceptions() {
    final Exception e1 = new Exception();
    final Exception e2 = new Exception(e1);
    e1.initCause(e2);
    LogManager.getLogger().error("Error", e1);
}
 

@Override
public boolean evaluate(MCRWorkflowData workflowData) {
    MCRCategLinkReference reference = workflowData.getCategoryReference();
    if (reference == null) {
        LogManager.getLogger(getClass())
            .error("Cannot evaluate '{}', if MCRWorkflowData does not contain an object reference",
                toString());
        return false;
    }
    return LINK_SERVICE.isInCategory(reference, mcrCategoryID) ^ not;
}
 

@Test(timeout = 5000)
public void testNormalQueueFullKeepsMessagesInOrder() throws InterruptedException {
    final Logger logger = LogManager.getLogger(this.getClass());

    blockingAppender.countDownLatch = new CountDownLatch(1);
    unlocker = new Unlocker(new CountDownLatch(129));
    unlocker.start();

    asyncAppenderTest(logger, unlocker, blockingAppender);
}
 

public void setLevel(Level level) {
    LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
    Configuration config = ctx.getConfiguration();
    LoggerConfig loggerConfig = config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME);
    loggerConfig.setLevel(toLog4jLevel(level));
    ctx.updateLoggers();
}