Package org.scijava.log

Class DefaultLogger

java.lang.Object

org.scijava.log.DefaultLogger

All Implemented Interfaces:

Logger, LogListener

public class DefaultLogger
extends Object
implements Logger, LogListener

Default implementation of Logger.

Author:

Matthias Arzt, Curtis Rueden

Constructor Summary

Constructors

Constructor	Description
DefaultLogger(LogListener destination, LogSource source, int level)

Method Summary

Modifier and Type	Method	Description
void	addLogListener(LogListener listener)	Adds an item to the list of registered listeners.
void	alwaysLog(int level, Object msg, Throwable t)	Logs a message with an exception.
int	getLevel()	Returns the log level of this logger. see LogLevel
LogSource	getSource()	Returns the LogSource associated with this logger.
void	messageLogged(LogMessage message)	This method is normally called from many threads in parallel.
void	notifyListeners(LogMessage message)	Broadcasts the given log message to the registered listeners.
void	removeLogListener(LogListener listener)	Removes an item from the list of registered listeners.
Logger	subLogger(String name, int level)	Creates a sub logger, that forwards the message it gets to this logger.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.scijava.log.Logger

debug, debug, debug, error, error, error, getName, info, info, info, isDebug, isError, isInfo, isLevel, isTrace, isWarn, log, log, log, subLogger, trace, trace, trace, warn, warn, warn

Constructor Detail

DefaultLogger

public DefaultLogger(LogListener destination,
                     LogSource source,
                     int level)

Method Detail

getSource

public LogSource getSource()

Description copied from interface: Logger

Returns the LogSource associated with this logger.

Specified by:

getSource in interface Logger

getLevel

public int getLevel()

Description copied from interface: Logger

Returns the log level of this logger. see LogLevel

Specified by:

getLevel in interface Logger

alwaysLog

public void alwaysLog(int level,
                      Object msg,
                      Throwable t)

Description copied from interface: Logger

Logs a message with an exception. This message will always be logged even if its level is above the current level (given by Logger.getLevel()).

Specified by:

alwaysLog in interface Logger

Parameters:

level - The level at which the information will be logged.

msg - The message to log.

t - The exception to log.

subLogger

public Logger subLogger(String name,
                        int level)

Description copied from interface: Logger

Creates a sub logger, that forwards the message it gets to this logger.

Specified by:

subLogger in interface Logger

Parameters:

name - The name of the sub logger.

level - The log level of the sub logger.

addLogListener

public void addLogListener(LogListener listener)

Description copied from interface: Logger

Adds an item to the list of registered listeners.

Specified by:

addLogListener in interface Logger

removeLogListener

public void removeLogListener(LogListener listener)

Description copied from interface: Logger

Removes an item from the list of registered listeners.

Specified by:

removeLogListener in interface Logger

notifyListeners

public void notifyListeners(LogMessage message)

Description copied from interface: Logger

Broadcasts the given log message to the registered listeners.

Specified by:

notifyListeners in interface Logger

messageLogged

public void messageLogged(LogMessage message)

Description copied from interface: LogListener

This method is normally called from many threads in parallel. It must be implemented highly thread safe and must not use any kind of locks.

Specified by:

messageLogged in interface LogListener