net.spy.log
Class AbstractLogger

java.lang.Object
  net.spy.log.AbstractLogger

All Implemented Interfaces:

Logger

Direct Known Subclasses:

DefaultLogger, Log4JLogger, SunLogger

public abstract class AbstractLogger
extends java.lang.Object
implements Logger

Abstract implementation of Logger providing most of the common framework.

Constructor Summary

protected

AbstractLogger(java.lang.String nm) Instantiate the abstract logger.

Method Summary

void	debug(java.lang.Object message) Log a message at debug level.
void	debug(java.lang.Object message, java.lang.Throwable exception) Log a message at debug level.
void	error(java.lang.Object message) Log a message at error level.
void	error(java.lang.Object message, java.lang.Throwable exception) Log a message at error level.
void	fatal(java.lang.Object message) Log a message at fatal level.
void	fatal(java.lang.Object message, java.lang.Throwable exception) Log a message at fatal level.
java.lang.String	getName() Get the name of this logger.
void	info(java.lang.Object message) Log a message at info level.
void	info(java.lang.Object message, java.lang.Throwable exception) Log a message at info level.
abstract boolean	isDebugEnabled() True if debug is enabled for this logger.
abstract boolean	isInfoEnabled() True if debug is enabled for this logger.
void	log(Level level, java.lang.Object message) Log a message at the given level.
abstract void	log(Level level, java.lang.Object message, java.lang.Throwable e) Subclasses should implement this method to determine what to do when a client wants to log at a particular level.
void	warn(java.lang.Object message) Log a message at warning level.
void	warn(java.lang.Object message, java.lang.Throwable exception) Log a message at warning level.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractLogger

protected AbstractLogger(java.lang.String nm)

Instantiate the abstract logger.

Method Detail

getName

public java.lang.String getName()

Get the name of this logger.

Specified by:

getName in interface Logger

isDebugEnabled

public abstract boolean isDebugEnabled()

True if debug is enabled for this logger. Default implementation always returns false

Specified by:

isDebugEnabled in interface Logger

Returns:

true if debug messages would be displayed

isInfoEnabled

public abstract boolean isInfoEnabled()

True if debug is enabled for this logger. Default implementation always returns false

Specified by:

isInfoEnabled in interface Logger

Returns:

true if info messages would be displayed

debug

public void debug(java.lang.Object message,
                  java.lang.Throwable exception)

Log a message at debug level.

Specified by:

debug in interface Logger

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

debug

public void debug(java.lang.Object message)

Log a message at debug level.

Specified by:

debug in interface Logger

Parameters:

message - the message to log

info

public void info(java.lang.Object message,
                 java.lang.Throwable exception)

Log a message at info level.

Specified by:

info in interface Logger

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

info

public void info(java.lang.Object message)

Log a message at info level.

Specified by:

info in interface Logger

Parameters:

message - the message to log

warn

public void warn(java.lang.Object message,
                 java.lang.Throwable exception)

Log a message at warning level.

Specified by:

warn in interface Logger

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

warn

public void warn(java.lang.Object message)

Log a message at warning level.

Specified by:

warn in interface Logger

Parameters:

message - the message to log

error

public void error(java.lang.Object message,
                  java.lang.Throwable exception)

Log a message at error level.

Specified by:

error in interface Logger

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

error

public void error(java.lang.Object message)

Log a message at error level.

Specified by:

error in interface Logger

Parameters:

message - the message to log

fatal

public void fatal(java.lang.Object message,
                  java.lang.Throwable exception)

Log a message at fatal level.

Specified by:

fatal in interface Logger

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

fatal

public void fatal(java.lang.Object message)

Log a message at fatal level.

Specified by:

fatal in interface Logger

Parameters:

message - the message to log

log

public void log(Level level,
                java.lang.Object message)

Log a message at the given level.

Specified by:

log in interface Logger

Parameters:

level - the level

message - the message

log

public abstract void log(Level level,
                         java.lang.Object message,
                         java.lang.Throwable e)

Subclasses should implement this method to determine what to do when a client wants to log at a particular level.

Specified by:

log in interface Logger

Parameters:

level - the level to log at (see the fields of this class)

message - the message to log

e - the exception that caused the message (or null)