Java LoggerContext類代碼示例

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@Test
public void testUdpSender() throws JoranException, InterruptedException {
  LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
  JoranConfigurator configurator = new JoranConfigurator();
  configurator.setContext(context);
  context.reset();
  configurator.doConfigure(this.getClass().getClassLoader().getResourceAsStream("logback-syslog-udp.xml"));

  Logger logger = context.getLogger("test-udp");
  logger.info("test message over udp");

  context.stop();
  Thread.sleep(100);

  final String serverData = serverStream.toString();
  assertTrue("Server received: " + serverData, serverData.contains("test message over udp"));
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@PostConstruct
public void initializeLogback() {
    LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
    InputStream is = InitLogback.class.getClassLoader().getResourceAsStream("tasfe-logback.xml");
    if (is == null)
        return;
    JoranConfigurator configurator = new JoranConfigurator();
    configurator.setContext(lc);
    lc.reset();

    try {
        configurator.doConfigure(is);
    } catch (JoranException e) {
        e.printStackTrace();
    }
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
/**
 * Get a {@link LoggingEventCompositeJsonEncoder}. The returned appender
 * adds a timestamp field and sets the type to "servicelog" if serviceLog is
 * true. If set to false, we return a request log appender which sets the
 * timestamp field internally to guarantee that timestamp of the request log
 * event and the resultant json structure stay in sync.
 * @param loggerContext to use for setup
 * @param serviceLog return appender for service logs if true, else return one for request logs
 * @return corresponding {@link LoggingEventCompositeJsonEncoder}
 */
static LoggingEventCompositeJsonEncoder getEncoder(
        final LoggerContext loggerContext, final boolean serviceLog) {
    final LoggingEventCompositeJsonEncoder jsonEncoder = new LoggingEventCompositeJsonEncoder();
    jsonEncoder.setContext(loggerContext);
    final LoggingEventJsonProviders jsonProviders = getCommonJsonProviders(loggerContext);

    final GlobalCustomFieldsJsonProvider<ILoggingEvent> customFieldsJsonProvider
            = new GlobalCustomFieldsJsonProvider<>();
    if (serviceLog) {
        final LoggingEventFormattedTimestampJsonProvider timeStampProvider
                = new LoggingEventFormattedTimestampJsonProvider();
        timeStampProvider.setTimeZone(DateTimeZone.UTC.getID());
        timeStampProvider.setFieldName("timestamp");
        jsonProviders.addTimestamp(timeStampProvider);
        customFieldsJsonProvider.setCustomFields("{\"type\":\"servicelog\"}");
    } else {
        customFieldsJsonProvider.setCustomFields("{\"type\":\"requestlog\"}");
    }
    jsonProviders.addGlobalCustomFields(customFieldsJsonProvider);
    jsonProviders.addStackTrace(new StackTraceJsonProvider());
    jsonProviders.addLogLevel(new LogLevelJsonProvider());
    jsonEncoder.setProviders(jsonProviders);
    jsonEncoder.start();
    return jsonEncoder;
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
static int execute(JetGatlingOptions options) {
    String workingDir = System.getProperty("user.dir");

    GatlingPropertiesBuilder builder = new GatlingPropertiesBuilder();
    builder.simulationClass(SIMULATION);
    builder.dataDirectory(workingDir);
    builder.bodiesDirectory(workingDir);
    builder.mute();

    if (options.getTimeout() > -1) {
        System.setProperty("gatling.http.ahc.readTimeout", String.valueOf(options.getTimeout()));
    }

    if (options.isDebug() || options.isTrace()) {
        Level logLevel = options.isTrace() ? Level.TRACE : Level.DEBUG;

        LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
        loggerContext.getLogger("io.gatling.http.ahc").setLevel(logLevel);
        loggerContext.getLogger("io.gatling.http.response").setLevel(logLevel);
        loggerContext.getLogger("io.gatling.app").setLevel(logLevel);
        loggerContext.getLogger("com.github.scw1109.jetgatling").setLevel(logLevel);
    }

    return Gatling.fromMap(builder.build());
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@Before
public void setUp() throws Exception {
  registry = RegistryService.getMetricRegistry();

  TagEncodedMetricName rootName = APPENDS_BASE_NAME;
  TagEncodedMetricName throwablesBaseName = THROWABLES_BASE_NAME;

  meters = new HashMap<>();
  meters.put("total", getMeter(rootName.submetric("total")));
  meters.put("trace", getMeter(rootName.withTags("level", "trace")));
  meters.put("debug", getMeter(rootName.withTags("level", "debug")));
  meters.put("info", getMeter(rootName.withTags("level", "info")));
  meters.put("warn", getMeter(rootName.withTags("level", "warn")));
  meters.put("error", getMeter(rootName.withTags("level", "error")));
  meters.put("throwCount", getMeter(throwablesBaseName.submetric("total")));
  meters.put("throw[RuntimeException]",
      getMeter(throwablesBaseName.withTags("class", RuntimeException.class.getName())
      ));

  LoggerContext context = new LoggerContext();

  logger = context.getLogger(LogbackInstrumentationTest.class);
  origLevel = logger.getLevel();
  logger.setLevel(Level.ALL);
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
public WebSocketLogAppender(String sessionId) {
    // deliberately NOT the com.intuit form else will pick up all those
    // this is supposed to isolate user-session s
    this.sessionId = sessionId;
    logger = (Logger) LoggerFactory.getLogger(sessionId);
    sb = new StringBuilder();
    setName("karate-web");
    LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
    setContext(lc);
    encoder = new PatternLayoutEncoder();
    encoder.setPattern("%d{HH:mm:ss.SSS} %-5level - %msg%n");
    encoder.setContext(context);
    encoder.start();
    start();
    logger.addAppender(this);
    logger.setLevel(Level.DEBUG);
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@Before
public void init()
{
    LoggerContext ctx = (LoggerContext) LoggerFactory.getILoggerFactory();

    ctx.reset();

    this.layoutProducer = new LayoutProducer();
    ConsoleAppender<ILoggingEvent> appender = new ConsoleAppender<>();
    appender.setLayout(layoutProducer);
    appender.setContext(ctx);
    appender.start();

    Logger basicLogger = ctx.getLogger(LogFmtTest.class);
    basicLogger.addAppender(appender);
    this.logger = LogFmt.from(basicLogger);

    ctx.start();
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
public void addLogstashAppender(LoggerContext context) {
    log.info("Initializing Logstash logging");

    LogstashSocketAppender logstashAppender = new LogstashSocketAppender();
    logstashAppender.setName("LOGSTASH");
    logstashAppender.setContext(context);
    String customFields = "{\"app_name\":\"" + appName + "\",\"app_port\":\"" + serverPort + "\"," +
        "\"instance_id\":\"" + instanceId + "\"}";

    // Set the Logstash appender config from JHipster properties
    logstashAppender.setSyslogHost(jHipsterProperties.getLogging().getLogstash().getHost());
    logstashAppender.setPort(jHipsterProperties.getLogging().getLogstash().getPort());
    logstashAppender.setCustomFields(customFields);

    // Limit the maximum length of the forwarded stacktrace so that it won't exceed the 8KB UDP limit of logstash
    ShortenedThrowableConverter throwableConverter = new ShortenedThrowableConverter();
    throwableConverter.setMaxLength(7500);
    throwableConverter.setRootCauseFirst(true);
    logstashAppender.setThrowableConverter(throwableConverter);

    logstashAppender.start();

    // Wrap the appender in an Async appender for performance
    AsyncAppender asyncLogstashAppender = new AsyncAppender();
    asyncLogstashAppender.setContext(context);
    asyncLogstashAppender.setName("ASYNC_LOGSTASH");
    asyncLogstashAppender.setQueueSize(jHipsterProperties.getLogging().getLogstash().getQueueSize());
    asyncLogstashAppender.addAppender(logstashAppender);
    asyncLogstashAppender.start();

    context.getLogger("ROOT").addAppender(asyncLogstashAppender);
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@GetMapping("/logs")
@Timed
public List<LoggerVM> getList() {
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    return context.getLoggerList()
        .stream()
        .map(LoggerVM::new)
        .collect(Collectors.toList());
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
/**
 * Set up logback logging for service and request logs. We use only ONE appender here to write
 * normal log lines to stdout for both types. Logging context is set from the keys and values
 * parameters. They must be corresponding in length and all elements must be non-null and
 * non-empty. However, the request logger is set up slightly differently. To guarantee that
 * everything works as expected this method must be called with the fully qualified class name
 * of the request logger that will be used in jetty.
 * @param keys to add to all log lines
 * @param values to add to all log lines
 * @param requestLoggerName the request logger class name
 * @param json true for json output, false for plain test
 */
 public static void setupLoggingStdoutOnly(
        final String[] keys,
        final String[] values,
        final String requestLoggerName,
        final boolean json) {
    if(!parametersOk(keys, values)) {
        throw new IllegalArgumentException(
                "Context keys and/or values are not properly formatted.");
    }
    final LoggerContext loggerContext = getLoggerContext(keys, values);
    final Appender<ILoggingEvent> consoleAppender = json
            ? createJsonConsoleAppender(SERVICE_CONSOLE_APPENDER, loggerContext, true)
            : createPatternLayoutConsoleAppender(SERVICE_CONSOLE_APPENDER, loggerContext, true);

    // specifically cast to logback version so we set it up
    final Logger rootLogger = (Logger) LoggerFactory.getLogger(
            org.slf4j.Logger.ROOT_LOGGER_NAME);
    rootLogger.addAppender(consoleAppender);
    rootLogger.setLevel(LOG_LEVEL);

    if (!Strings.isNullOrEmpty(requestLoggerName)) {
        final Logger requestLogger = (Logger) LoggerFactory.getLogger(requestLoggerName);
        requestLogger
                .addAppender(json
                        ? createJsonConsoleAppender(
                                REQUESTLOG_CONSOLE_APPENDER, loggerContext, false)
                        : createPatternLayoutConsoleAppender(
                                REQUESTLOG_CONSOLE_APPENDER, loggerContext, false));
        requestLogger.setAdditive(false);
        requestLogger.setLevel(LOG_LEVEL);
    }
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
private static LoggingEventJsonProviders getCommonJsonProviders(
        final LoggerContext loggerContext) {
    final LoggingEventJsonProviders jsonProviders = new LoggingEventJsonProviders();
    jsonProviders.addPattern(new LoggingEventPatternJsonProvider());
    jsonProviders.addArguments(new ArgumentsJsonProvider());
    jsonProviders.addMessage(new MessageJsonProvider());
    jsonProviders.addContext(new ContextJsonProvider<ILoggingEvent>());
    jsonProviders.addMdc(new MdcJsonProvider());
    jsonProviders.setContext(loggerContext);
    return jsonProviders;
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@RequestMapping(value = "/logs",
    method = RequestMethod.PUT)
@ResponseStatus(HttpStatus.NO_CONTENT)
@Timed
public void changeLevel(@RequestBody LoggerDTO jsonLogger) {
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    context.getLogger(jsonLogger.getName()).setLevel(Level.valueOf(jsonLogger.getLevel()));
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
/**
 * figure out the logback's configuration: for example, appenders' file path, buff io, etc...
 * 
 * @param context
 * @param webapploader
 */
private void figureOutLogBackConfig(HookContext context, ClassLoader webapploader) {

    Logger logback = (Logger) LoggerFactory.getLogger(LogBackHookProxy.class);

    InterceptContext interceptContext = (InterceptContext) context.get(HookConstants.INTERCEPTCONTEXT);

    if (interceptContext == null) {
        logback.warn("No InterceptContext available, can't figure out LogBack configuration.");
        return;
    }

    @SuppressWarnings("unchecked")
    LinkedList<LogProfileInfo> list = (LinkedList<LogProfileInfo>) interceptContext
            .get(HookConstants.LOG_PROFILE_LIST);

    if (null == list) {
        list = new LinkedList<LogProfileInfo>();
        interceptContext.put(HookConstants.LOG_PROFILE_LIST, list);
    }

    String appid = (String) (interceptContext.get(InterceptConstants.CONTEXTPATH));

    // figureour all loggers
    LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();

    List<ch.qos.logback.classic.Logger> loggers = loggerContext.getLoggerList();

    for (Logger logger : loggers) {
        figureoutLogConfiguration(logger, list, appid);
    }

}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@PutMapping("/logs")
@ResponseStatus(HttpStatus.NO_CONTENT)
@Timed
public void changeLevel(@RequestBody LoggerVM jsonLogger) {
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
    context.getLogger(jsonLogger.getName()).setLevel(Level.valueOf(jsonLogger.getLevel()));
}
 

import ch.qos.logback.classic.LoggerContext; //導入依賴的package包/類
@Override
public void configure(LoggerContext loggerContext) {
    addInfo("Setting up default configuration.");

    DefaultConsoleAppender consoleAppender = new DefaultConsoleAppender();
    consoleAppender.setContext(loggerContext);
    consoleAppender.setName("CONSOLE");
    consoleAppender.start();

    Logger rootLogger = loggerContext.getLogger(Logger.ROOT_LOGGER_NAME);
    rootLogger.setLevel(Level.INFO);
    rootLogger.addAppender(consoleAppender);
}