org.slf4j.LoggerFactory Java Examples

@PostConstruct
public void init() {
    log.debug("Registering JVM gauges");
    metricRegistry.register(PROP_METRIC_REG_JVM_MEMORY, new MemoryUsageGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_GARBAGE, new GarbageCollectorMetricSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_THREADS, new ThreadStatesGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_FILES, new FileDescriptorRatioGauge());
    metricRegistry.register(PROP_METRIC_REG_JVM_BUFFERS, new BufferPoolMetricSet(ManagementFactory.getPlatformMBeanServer()));
    metricRegistry.register(PROP_METRIC_REG_JVM_ATTRIBUTE_SET, new JvmAttributeGaugeSet());
    if (jHipsterProperties.getMetrics().getJmx().isEnabled()) {
        log.debug("Initializing Metrics JMX reporting");
        JmxReporter jmxReporter = JmxReporter.forRegistry(metricRegistry).build();
        jmxReporter.start();
    }
    if (jHipsterProperties.getMetrics().getLogs().isEnabled()) {
        log.info("Initializing Metrics Log reporting");
        Marker metricsMarker = MarkerFactory.getMarker("metrics");
        final Slf4jReporter reporter = Slf4jReporter.forRegistry(metricRegistry)
            .outputTo(LoggerFactory.getLogger("metrics"))
            .markWith(metricsMarker)
            .convertRatesTo(TimeUnit.SECONDS)
            .convertDurationsTo(TimeUnit.MILLISECONDS)
            .build();
        reporter.start(jHipsterProperties.getMetrics().getLogs().getReportFrequency(), TimeUnit.SECONDS);
    }
}
 

private FileAppender<ILoggingEvent> addAppender(final String file) {
    final LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
    final PatternLayoutEncoder ple = new PatternLayoutEncoder();

    ple.setPattern("%date %level [%file:%line] %msg%n");
    ple.setContext(lc);
    ple.start();

    final FileAppender<ILoggingEvent> appender;
    appender = new FileAppender<>();
    appender.setFile(file);
    appender.setEncoder(ple);
    appender.setContext(lc);
    final ThresholdFilter levelFilter = new ThresholdFilter();
    levelFilter.setLevel(this.level.levelStr);
    levelFilter.start();
    appender.addFilter(levelFilter);

    appender.start();

    final ch.qos.logback.classic.Logger logbackLogger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
    logbackLogger.addAppender(appender);

    return appender;
}
 

@Override
public void execute(final NodeExecutor nodeExecutor, final boolean isLeader, final KVStoreClosure closure) {
    final Timer.Context timeCtx = getTimeContext("EXECUTE");
    try {
        if (nodeExecutor != null) {
            nodeExecutor.execute(Status.OK(), isLeader);
        }
        setSuccess(closure, Boolean.TRUE);
    } catch (final Exception e) {
        final Logger LOG = LoggerFactory.getLogger(getClass());
        LOG.error("Fail to [EXECUTE], {}.", StackTraceUtil.stackTrace(e));
        if (nodeExecutor != null) {
            nodeExecutor.execute(new Status(RaftError.EIO, "Fail to [EXECUTE]"), isLeader);
        }
        setCriticalError(closure, "Fail to [EXECUTE]", e);
    } finally {
        timeCtx.stop();
    }
}
 

private AccessLogHandler createAccessLogHandler(HttpHandler handler) {
    Logger logger = LoggerFactory.getLogger("accesslog");
    try {
        /*
        ref nginx log format:
        '$remote_addr - $remote_user [$time_local] "$request" '
              '$status $body_bytes_sent "$http_referer" '
              '"$http_user_agent" "$http_x_forwarded_for"';
         */
        AccessLogReceiver accessLogReceiver = logger::info;
        String formatString = "%h %l %u [%t] \"%r\" %s %b \"%{i,Referer}\""
                + " \"%{i,User-Agent}\" \"%{i,X-Forwarded-For}\" %D";
        return new AccessLogHandler(handler, accessLogReceiver, formatString,
                Undertow.class.getClassLoader());
    } catch (Exception ex) {
        throw new IllegalStateException("Failed to create AccessLogHandler", ex);
    }
}
 

@PostConstruct
public void init() {
    log.debug("Registering JVM gauges");
    metricRegistry.register(PROP_METRIC_REG_JVM_MEMORY, new MemoryUsageGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_GARBAGE, new GarbageCollectorMetricSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_THREADS, new ThreadStatesGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_FILES, new FileDescriptorRatioGauge());
    metricRegistry.register(PROP_METRIC_REG_JVM_BUFFERS, new BufferPoolMetricSet(ManagementFactory.getPlatformMBeanServer()));
    metricRegistry.register(PROP_METRIC_REG_JVM_ATTRIBUTE_SET, new JvmAttributeGaugeSet());
    if (jHipsterProperties.getMetrics().getJmx().isEnabled()) {
        log.debug("Initializing Metrics JMX reporting");
        JmxReporter jmxReporter = JmxReporter.forRegistry(metricRegistry).build();
        jmxReporter.start();
    }
    if (jHipsterProperties.getMetrics().getLogs().isEnabled()) {
        log.info("Initializing Metrics Log reporting");
        Marker metricsMarker = MarkerFactory.getMarker("metrics");
        final Slf4jReporter reporter = Slf4jReporter.forRegistry(metricRegistry)
            .outputTo(LoggerFactory.getLogger("metrics"))
            .markWith(metricsMarker)
            .convertRatesTo(TimeUnit.SECONDS)
            .convertDurationsTo(TimeUnit.MILLISECONDS)
            .build();
        reporter.start(jHipsterProperties.getMetrics().getLogs().getReportFrequency(), TimeUnit.SECONDS);
    }
}
 

@Before
public void setUp() throws Exception {
   super.setUp();
   
   placeId = UUID.randomUUID();
   address = Address.platformService(UUID.randomUUID(), RuleCapability.NAMESPACE, 1);
   
   context =
         PlatformRuleContext
            .builder()
            .withLogger(LoggerFactory.getLogger(TestPlatformRuleContext.class))
            .withModels(new RuleModelStore())
            .withPlatformBus(platformBus)
            .withEventLoop(eventLoop)
            .withPlaceId(placeId)
            .withSource(address)
            .withTimeZone(TimeZone.getDefault())
            .build();
}
 

private ExceptionMetadata logException(Object handler, HttpServletRequest request, Exception exception) {
    ExceptionMetadata exceptionMetadata = new ExceptionMetadata();
    try {
        buildExceptionMetadata(exceptionMetadata, handler, request);
        if (exceptionMetadata.isHandlerMethod()) {
            Logger logger = LoggerFactory.getLogger(exceptionMetadata.getBeanType());
            logger.error("Error id is :" + exceptionMetadata.getErrorId());
            logger.error("RequestMapping is:");
            logger.error(exceptionMetadata.getRequestMapping());
            logger.error("HandlerMethod is:");
            logger.error(exceptionMetadata.getMethodName());
            logger.error("ParameterMap is:");
            logger.error(exceptionMetadata.getParameterMap(), exception);
        } else {
            log.error(handler + " execute failed, error id is:" + exceptionMetadata.getErrorId(), exception);
        }
    } catch (Exception e) {
        log.error(handler + " execute failed.", exception);
    }
    return exceptionMetadata;
}
 

@SuppressWarnings("unused")
private List<String> toQueryTermString(String field, String str) {
    List<String> result = new ArrayList<>();
    try {
        TokenStream stream = analyzerFactory.getQueryAnalyzer().tokenStream(field,
                new StringReader(str));
        stream.reset();
        while (stream.incrementToken()) {
            result.add(stream.getAttribute(CharTermAttribute.class).toString()
                    .replaceAll("^term\\=", ""));
        }
        stream.close();
    } catch (IOException e) {
        LoggerFactory.getLogger(AnalyzerFactoryTestCase.class)
                .error("Error during Token processing.", e);
    }
    return result;
}
 

/**
 * Test that all of {@link OzoneManagerProtocolProtos.Type} enum values are
 * categorized in {@link OmUtils#isReadOnly(OMRequest)}.
 */
@Test
public void testIsReadOnlyCapturesAllCmdTypeEnums() throws Exception {
  GenericTestUtils.LogCapturer logCapturer = GenericTestUtils.LogCapturer
      .captureLogs(LoggerFactory.getLogger(OmUtils.class));
  OzoneManagerProtocolProtos.Type[] cmdTypes =
      OzoneManagerProtocolProtos.Type.values();

  for (OzoneManagerProtocolProtos.Type cmdtype : cmdTypes) {
    OMRequest request = OMRequest.newBuilder()
        .setCmdType(cmdtype)
        .setClientId(clientId)
        .build();
    OmUtils.isReadOnly(request);
    assertFalse(cmdtype + " is not categorized in " +
            "OmUtils#isReadyOnly",
        logCapturer.getOutput().contains("CmdType " + cmdtype +" is not " +
            "categorized as readOnly or not."));
    logCapturer.clearOutput();
  }
}
 

/**
 * Handle the supplied annotation introspection exception.
 * it will simply be thrown, allowing it to propagate to the caller, and
 * nothing will be logged.
 * <p>Otherwise, this method logs an introspection failure (in particular
 * {@code TypeNotPresentExceptions}) before moving on, assuming nested
 * Class values were not resolvable within annotation attributes and
 * thereby effectively pretending there were no annotations on the specified
 * element.
 *
 * @param element the element that we tried to introspect annotations on
 * @param ex      the exception that we encountered
 * @see #rethrowAnnotationConfigurationException
 */
static void handleIntrospectionFailure(AnnotatedElement element, Throwable ex) {
    rethrowAnnotationConfigurationException(ex);

    Logger loggerToUse = logger;
    if (loggerToUse == null) {
        loggerToUse = LoggerFactory.getLogger(AnnotationUtils.class);
        logger = loggerToUse;
    }
    if (element instanceof Class && Annotation.class.isAssignableFrom((Class<?>) element)) {
        // Meta-annotation lookup on an annotation type
        if (loggerToUse.isDebugEnabled()) {
            loggerToUse.debug("Failed to introspect meta-annotations on [" + element + "]: " + ex);
        }
    } else {
        // Direct annotation lookup on regular Class, Method, Field
        if (loggerToUse.isInfoEnabled()) {
            loggerToUse.info("Failed to introspect annotations on [" + element + "]: " + ex);
        }
    }
}
 

public static void main(String[] args) {
    int loopTimes = 200;

    class Runner implements Runnable {

        private Logger logger = LoggerFactory.getLogger(Runner.class);

        @Override
        public void run() {
            HtmlMakerFactory factory = HtmlMakerFactory.instance();
            logger.info("factory={},currentThread={}", (factory != null ? factory.getClass().getName() : "null"), Thread.currentThread().getName());
        }
    }

    for (int i = 0; i < loopTimes; i++) {
        new Thread(new Runner()).start();
    }
}
 

@PostConstruct
public void init() {
    log.debug("Registering JVM gauges");
    metricRegistry.register(PROP_METRIC_REG_JVM_MEMORY, new MemoryUsageGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_GARBAGE, new GarbageCollectorMetricSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_THREADS, new ThreadStatesGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_FILES, new FileDescriptorRatioGauge());
    metricRegistry.register(PROP_METRIC_REG_JVM_BUFFERS, new BufferPoolMetricSet(ManagementFactory.getPlatformMBeanServer()));
    if (jHipsterProperties.getMetrics().getJmx().isEnabled()) {
        log.debug("Initializing Metrics JMX reporting");
        JmxReporter jmxReporter = JmxReporter.forRegistry(metricRegistry).build();
        jmxReporter.start();
    }
    if (jHipsterProperties.getMetrics().getLogs().isEnabled()) {
        log.info("Initializing Metrics Log reporting");
        Marker metricsMarker = MarkerFactory.getMarker("metrics");
        final Slf4jReporter reporter = Slf4jReporter.forRegistry(metricRegistry)
            .outputTo(LoggerFactory.getLogger("metrics"))
            .markWith(metricsMarker)
            .convertRatesTo(TimeUnit.SECONDS)
            .convertDurationsTo(TimeUnit.MILLISECONDS)
            .build();
        reporter.start(jHipsterProperties.getMetrics().getLogs().getReportFrequency(), TimeUnit.SECONDS);
    }
}
 

@PostConstruct
public void init() {
    log.debug("Registering JVM gauges");
    metricRegistry.register(PROP_METRIC_REG_JVM_MEMORY, new MemoryUsageGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_GARBAGE, new GarbageCollectorMetricSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_THREADS, new ThreadStatesGaugeSet());
    metricRegistry.register(PROP_METRIC_REG_JVM_FILES, new FileDescriptorRatioGauge());
    metricRegistry.register(PROP_METRIC_REG_JVM_BUFFERS, new BufferPoolMetricSet(ManagementFactory.getPlatformMBeanServer()));
    metricRegistry.register(PROP_METRIC_REG_JVM_ATTRIBUTE_SET, new JvmAttributeGaugeSet());
    if (jHipsterProperties.getMetrics().getJmx().isEnabled()) {
        log.debug("Initializing Metrics JMX reporting");
        JmxReporter jmxReporter = JmxReporter.forRegistry(metricRegistry).build();
        jmxReporter.start();
    }
    if (jHipsterProperties.getMetrics().getLogs().isEnabled()) {
        log.info("Initializing Metrics Log reporting");
        Marker metricsMarker = MarkerFactory.getMarker("metrics");
        final Slf4jReporter reporter = Slf4jReporter.forRegistry(metricRegistry)
            .outputTo(LoggerFactory.getLogger("metrics"))
            .markWith(metricsMarker)
            .convertRatesTo(TimeUnit.SECONDS)
            .convertDurationsTo(TimeUnit.MILLISECONDS)
            .build();
        reporter.start(jHipsterProperties.getMetrics().getLogs().getReportFrequency(), TimeUnit.SECONDS);
    }
}
 

@Override
public void init() {
    LoggerContext loggerContext = (LoggerContext)LoggerFactory.getILoggerFactory();
    if (loggerContext == null)
        return;
    List<Logger> loggerList = loggerContext.getLoggerList();
    ch.qos.logback.classic.Logger loggerKafka =
        loggerContext.getLogger("org.apache.kafka.clients.producer.ProducerConfig");
    if (loggerKafka != null) {
        loggerKafka.setLevel(ch.qos.logback.classic.Level.ERROR);
    }
    createBizLogger();
    for (Logger logger : loggerList) {
        AppenderAttachable appenderAttachable = logger;
        setLayout(loggerContext,appenderAttachable.iteratorForAppenders());
    }
}
 

@Before
public void init(){
   this.context = new SimpleContext(UUID.randomUUID(), this.source, LoggerFactory.getLogger(TestForEachActionTemplate.class));
   
   SimpleModel model = new SimpleModel();
   model.setAttribute(Capability.ATTR_ID, modelAddress.toString());
   model.setAttribute(Capability.ATTR_TYPE, DeviceCapability.NAMESPACE);
   model.setAttribute(Capability.ATTR_ADDRESS, modelAddress.getRepresentation());
   context.putModel(model);

   logTemplate = new LogTemplate();
   logTemplate.setMessage(TemplatedValue.text("hello ${value}"));
   template = new ForEachModelTemplate(ImmutableSet.<String>of("address"));
   template.setActions(ImmutableList.of(logTemplate,logTemplate));
   template.setQuery(new TemplatedExpression(modelQuery));
   template.setVar("address");
}
 

/**
 * Dynamically remove given topic partition from the set of assigned topic partitions.
 *
 * @param tp topic partition to remove
 */
default CompletableFuture<Void> removeTopicParition(TopicPartition tp) {
    Objects.requireNonNull(tp);

    Logger log = LoggerFactory.getLogger(DynamicAssignment.class);
    log.info("Removing topic-partition: {}", tp);

    return submit(consumer -> {

        Set<TopicPartition> oldTps = consumer.assignment();
        Set<TopicPartition> newTps = new HashSet<>(oldTps);
        newTps.remove(tp);

        if (!oldTps.equals(newTps)) {
            log.info("Reassigning topic-partition(s): {} -> {}", oldTps, newTps);
            consumer.assign(newTps);
        }

        return null;
    });
}
 

@Override
@PostConstruct
protected void initialize(){
    RequestMethod requestMethod = RequestMethod.GET;
    setFieldsByProperties(siteProperties, requestMethod, generateHeader(),generateRequestBody());
    injectBeansByContext(context);
    setLog(LoggerFactory.getLogger(getClass()));
    this.elementClass = ITEM_KEY;
}
 

@Before
public void setUp() throws Exception {

    context = (LoggerContext) LoggerFactory.getILoggerFactory();

    rootLogger = context.getLogger(Logger.ROOT_LOGGER_NAME);

    level = rootLogger.getLevel();
    rootLogger.setLevel(Level.DEBUG);
    context.addTurboFilter(new XodusFileDataWriterLogLevelModificator());
    context.getLogger("jetbrains.exodus").setLevel(Level.DEBUG);
}
 

/**
 * Private constructor that creates a re-configured copy of the state backend.
 *
 * @param original The state backend to re-configure
 * @param configuration The configuration
 */
private FsStateBackend(FsStateBackend original, Configuration configuration, ClassLoader classLoader) {
	super(original.getCheckpointPath(), original.getSavepointPath(), configuration);

	// if asynchronous snapshots were configured, use that setting,
	// else check the configuration
	this.asynchronousSnapshots = original.asynchronousSnapshots.resolveUndefined(
			configuration.getBoolean(CheckpointingOptions.ASYNC_SNAPSHOTS));

	final int sizeThreshold = original.fileStateThreshold >= 0 ?
			original.fileStateThreshold :
			configuration.getInteger(CheckpointingOptions.FS_SMALL_FILE_THRESHOLD);

	if (sizeThreshold >= 0 && sizeThreshold <= MAX_FILE_STATE_THRESHOLD) {
		this.fileStateThreshold = sizeThreshold;
	}
	else {
		this.fileStateThreshold = CheckpointingOptions.FS_SMALL_FILE_THRESHOLD.defaultValue();

		// because this is the only place we (unlikely) ever log, we lazily
		// create the logger here
		LoggerFactory.getLogger(AbstractFileStateBackend.class).warn(
				"Ignoring invalid file size threshold value ({}): {} - using default value {} instead.",
				CheckpointingOptions.FS_SMALL_FILE_THRESHOLD.key(), sizeThreshold,
				CheckpointingOptions.FS_SMALL_FILE_THRESHOLD.defaultValue());
	}
}
 

@Test
public void watchWithExceptionAndWarnLog() {
    Logger root = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
    root.setLevel(Level.WARN);
    ApplicationEventPublisher eventPublisher = mock(ApplicationEventPublisher.class);

    setupWatch(eventPublisher, "/app/", null);

    verify(eventPublisher, never()).publishEvent(ArgumentMatchers.any(RefreshEvent.class));
}
 

@Before
public void setUp() throws Exception {

    MockitoAnnotations.initMocks(this);

    final Logger logger = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
    logger.addAppender(mockAppender);

    final File hivemqHomefolder = folder.newFolder();
    confFolder = new File(hivemqHomefolder, "conf");
    assertTrue(confFolder.mkdir());

    when(systemInformation.getHiveMQHomeFolder()).thenReturn(hivemqHomefolder);
    when(systemInformation.getConfigFolder()).thenReturn(confFolder);
}
 

private RuleContext createSimpleRuleContext(UUID placeId) {
   PlaceEnvironmentExecutor executor = registry.getExecutor(placeId).orNull();
   Collection<Model> models = executor != null ? 
         executor.getModelStore().getModels() : 
         modelDao.loadModelsByPlace(placeId, RuleModelStore.TRACKED_TYPES);

   // use a simple context just for resolving
   SimpleContext context = new SimpleContext(placeId, Address.platformService("rule"), LoggerFactory.getLogger("rules." + placeId));
   models.stream().filter((m) -> m != null).forEach((m) -> context.putModel(m));
   return context;
}
 

@Before
public void setUp() throws Exception {

    context = (LoggerContext) LoggerFactory.getILoggerFactory();

    rootLogger = context.getLogger(Logger.ROOT_LOGGER_NAME);

    level = rootLogger.getLevel();
    rootLogger.setLevel(Level.DEBUG);
    context.addTurboFilter(new XodusFileDataWriterLogLevelModificator());
    context.getLogger("jetbrains.exodus").setLevel(Level.DEBUG);
}
 

public static void main(String[] args) throws Exception {

        try {
            overrideLoggingConfig();

            SpringApplication.run(ITestApplication.class, args);
        } catch (Throwable t) {
            LoggerFactory.getLogger(ITestApplication.class).error("Error while executing test", t);
            throw t;
        }
    }
 

/**
 * Close logback
 */
private void closeLogback() {
    try {
        ((LoggerContext)LoggerFactory.getILoggerFactory()).stop();
    } catch (Throwable cause) {
        cause.printStackTrace();
    }
}
 

private static Logger buildInfoByLevel(String name, Level logLevel, String fileName) {
    RollingFileAppender appender = new AppenderBuild().getAppender(name, logLevel, fileName);
    LoggerContext context = (LoggerContext)LoggerFactory.getILoggerFactory();
    Logger logger = context.getLogger(name);

    logger.setAdditive(false);
    logger.addAppender(appender);
    return logger;
}
 

public ClosureShardingAlgorithm(final String expression, final String logRoot) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(expression));
    Preconditions.checkArgument(!Strings.isNullOrEmpty(logRoot));
    Binding binding = new Binding();
    binding.setVariable("log", LoggerFactory.getLogger(Joiner.on(".").join("com.dangdang.ddframe.rdb.sharding.configFile", logRoot.trim())));
    closureTemplate = (Closure) new GroovyShell(binding).evaluate(Joiner.on("").join("{it -> \"", expression.trim(), "\"}"));
}
 

private void hijackStdio() {
   Logger stdoutLogger = LoggerFactory.getLogger("stdout");
   Logger stderrLogger = LoggerFactory.getLogger("stderr");

   PrintStream newOut = new PrintStream(new StdioOutputStream(stdoutLogger));
   PrintStream newErr = new PrintStream(new StdioOutputStream(stderrLogger));

   System.setOut(newOut);
   System.setErr(newErr);
}
 

@Before
public void setUp() {
   delegate = new SimpleContext(UUID.randomUUID(), Address.platformService(UUID.randomUUID(), "rule"), LoggerFactory.getLogger(TestThresholdTrigger.class));
   delegate.setVariable("_baseVar", "basevalue");
   delegate.clearDirty();
   context1 = new NamespaceContext("context1", delegate);
   context2 = new NamespaceContext("context2", delegate);
}
 

@GetMapping("/logs")
@Timed
public List<LoggerVM> getList() {
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    return context.getLoggerList()
        .stream()
        .map(LoggerVM::new)
        .collect(Collectors.toList());
}