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|
public class Logger {
// ~ Static fields/initializers
// -----------------------------------------------
private static Logger _instance = null;
// ~ Constructors
// -------------------------------------------------------------
/**
* Creates a new Logger object.
*/
private Logger() {
}
// ~ Methods
// ------------------------------------------------------------------
/**
* singleton factory
*
* @return instance of logger
*/
public static synchronized Logger getInstance() {
if (_instance == null) {
_instance = new Logger();
}
return _instance;
}
/**
* Log the message with a priority TRACE
*
* @param classObj
* a reference to the object asking for logging
* @param message
* the message to be logged
* @param t
* associated throwable object, may be null
*/
public void trace(Object classObj, String message, Throwable t) {
this.trace(classObj.getClass().getName(), message, t);
}
/**
* Log the message with a priority TRACE
*
* @param classObj
* a reference to the object asking for logging
* @param message
* the message to be logged
*/
public void trace(Object classObj, String message) {
this.trace(classObj.getClass().getName(), message, null);
}
/**
* Log the message with a priority TRACE
*
* @param className
* a class name
* @param message
* the message to be logged
*/
public void trace(String className, String message) {
this.trace(className, message, null);
}
/**
* Log the message with a priority TRACE
*
* @param className
* the class name of the object asking for logging
* @param message
* the message to be logged
* @param t
* associated throwable object, may be null
*/
public void trace(String className, String message, Throwable t) {
Log log = LogFactory.getLog(className);
if (log.isTraceEnabled()) {
if (t != null) {
log.trace(message, t);
} else {
log.trace(message);
}
}
}
/**
* Log the message with a priority DEBUG
*
* @param classObj
* a reference to the object asking for logging
* @param message
* the message to be logged
* @param t
* associated throwable object, may be null
*/
public void debug(Object classObj, String message, Throwable t) {
this.debug(classObj.getClass().getName(), message, t);
}
/**
* Log the message with a priority DEBUG
*
* @param classObj
* a reference to the object asking for logging
* @param message
* the message to be logged
*/
public void debug(Object classObj, String message) {
this.debug(classObj.getClass().getName(), message, null);
}
/**
* Log the message with a priority DEBUG
*
* @param className
* a class name
* @param message
* the message to be logged
*/
public void debug(String className, String message) {
this.debug(className, message, null);
}
/**
* Log the message with a priority DEBUG
*
* @param className
* the class name of the object asking for logging
* @param message
* the message to be logged
* @param t
* associated throwable object, may be null
*/
public void debug(String className, String message, Throwable t) {
Log log = LogFactory.getLog(className);
if (log.isDebugEnabled()) {
if (t != null) {
log.debug(message, t);
} else {
log.debug(message);
}
}
}
// la meme chose pour info, warn, et fatal et error |
