Java Utililty Methods slf4j Logger

List of utility methods to do slf4j Logger

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Description

The list of methods to do slf4j Logger are organized into topic(s).

Method

LoggergetLogger(String className)
get Logger 
return LoggerFactory.getLogger(className);
LoggergetLoggerForCurrentClass()
Create a slf4j logger based on the caller's class name. 
Thread currThread = Thread.currentThread();
StackTraceElement[] trace = currThread.getStackTrace();
return LoggerFactory.getLogger(trace[2].getClassName());
LoggergetLoggerInstance(String callerCLass)
Returns a new Logger instance for given class name.
If logger instance already exist in cache returns existing one 
if (LOGGER_INSTANCES.containsKey(callerCLass)) {
    return LOGGER_INSTANCES.get(callerCLass);
Logger logger = LoggerFactory.getLogger(callerCLass);
isTraceEnabled = logger.isTraceEnabled();
isDebugEnabled = logger.isDebugEnabled();
isInfoEnabled = logger.isInfoEnabled();
isWarnEnabled = logger.isWarnEnabled();
...
intgetLoggerLevel(Logger logger)
get Logger Level 
if (logger == null) {
    throw new NullPointerException("logger must not be null");
if (logger.isTraceEnabled()) {
    return TRACE_LEVEL;
if (logger.isDebugEnabled()) {
    return DEBUG_LEVEL;
...
longgetLong(Properties config, String key, long defaultValue)
Get long from properties. 
String val = config.getProperty(key);
if (val == null) {
    return defaultValue;
} else {
    try {
        return Long.parseLong(val);
    } catch (NumberFormatException nfe) {
        throw new IllegalArgumentException(
...
StringgetMessage(String message, Object... args)
get Message 
return MessageFormatter.arrayFormat(message, args).getMessage();
intgetTraceLevel(Logger logger)
get Trace Level 
if (logger.isDebugEnabled()) {
    return TRACE_DEBUG;
} else if (logger.isInfoEnabled()) {
    return TRACE_INFO;
} else if (logger.isWarnEnabled()) {
    return TRACE_WARN;
} else {
    return TRACE_ERROR;
...
voidic static void i(String fmt, Object... args)
i 
i(logger, fmt, args);
voidinfo(Class clz, String logStr)
Log a message at the INFO level. 
LoggerFactory.getLogger(clz).info("[" + clz.getSimpleName() + "] " + logStr);
voidinfo(final Logger log, final String message, final Object... args)
info 
log.info(getFormattedMessage(message, args));