org.apache.commons.logging.impl
Class AvalonLogger

java.lang.Object
  |
  +--org.apache.commons.logging.impl.AvalonLogger

All Implemented Interfaces:

Log, java.io.Serializable

public class AvalonLogger

extends java.lang.Object

implements Log, java.io.Serializable

Implementation of commons-logging Log interface that delegates all logging calls to the Avalon logging abstraction: the Logger interface.

There are two ways in which this class can be used:

• the instance can be constructed with an Avalon logger (by calling AvalonLogger(Logger)). In this case, it acts as a simple thin wrapping implementation over the logger. This is particularly useful when using a property setter.
• the setDefaultLogger(org.apache.avalon.framework.logger.Logger) class property can be called which sets the ancesteral Avalon logger for this class. Any AvalonLogger instances created through the LogFactory mechanisms will output to child loggers of this Logger.

Version:

$Revision: 853148 $ $Date: 2004/06/01 19:56:20 $

Author:

Neeme Praks

See Also:

Serialized Form

Constructor Summary

AvalonLogger(org.apache.avalon.framework.logger.Logger logger)
Constructs an AvalonLogger that outputs to the given Logger instance.

AvalonLogger(java.lang.String name)
Constructs an AvalonLogger that will log to a child of the Logger set by calling setDefaultLogger(org.apache.avalon.framework.logger.Logger).

Method Summary

void	debug(java.lang.Object o) Log a message with debug log level.
void	debug(java.lang.Object o, java.lang.Throwable t) Log an error with debug log level.
void	error(java.lang.Object o) Log a message with error log level.
void	error(java.lang.Object o, java.lang.Throwable t) Log an error with error log level.
void	fatal(java.lang.Object o) Log a message with fatal log level.
void	fatal(java.lang.Object o, java.lang.Throwable t) Log an error with fatal log level.
org.apache.avalon.framework.logger.Logger	getLogger() Gets the Avalon logger implementation used to perform logging.
void	info(java.lang.Object o) Log a message with info log level.
void	info(java.lang.Object o, java.lang.Throwable t) Log an error with info log level.
boolean	isDebugEnabled() Is debug logging currently enabled?
boolean	isErrorEnabled() Is error logging currently enabled?
boolean	isFatalEnabled() Is fatal logging currently enabled?
boolean	isInfoEnabled() Is info logging currently enabled?
boolean	isTraceEnabled() Is trace logging currently enabled?
boolean	isWarnEnabled() Is warn logging currently enabled?
static void	setDefaultLogger(org.apache.avalon.framework.logger.Logger logger) Sets the ancesteral Avalon logger from which the delegating loggers will descend.
void	trace(java.lang.Object o) Log a message with trace log level.
void	trace(java.lang.Object o, java.lang.Throwable t) Log an error with trace log level.
void	warn(java.lang.Object o) Log a message with warn log level.
void	warn(java.lang.Object o, java.lang.Throwable t) Log an error with warn log level.

Methods inherited from class java.lang.Object

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

Constructor Detail

AvalonLogger

public AvalonLogger(org.apache.avalon.framework.logger.Logger logger)

Constructs an AvalonLogger that outputs to the given Logger instance.

Parameters:

logger - the avalon logger implementation to delegate to

AvalonLogger

public AvalonLogger(java.lang.String name)

Constructs an AvalonLogger that will log to a child of the Logger set by calling setDefaultLogger(org.apache.avalon.framework.logger.Logger).

Parameters:

name - the name of the avalon logger implementation to delegate to

Method Detail

getLogger

public org.apache.avalon.framework.logger.Logger getLogger()

Gets the Avalon logger implementation used to perform logging.

Returns:

avalon logger implementation

setDefaultLogger

public static void setDefaultLogger(org.apache.avalon.framework.logger.Logger logger)

Sets the ancesteral Avalon logger from which the delegating loggers will descend.

Parameters:

logger - the default avalon logger, in case there is no logger instance supplied in constructor

debug

public void debug(java.lang.Object o,
                  java.lang.Throwable t)

Description copied from interface: Log

Log an error with debug log level.

Specified by:

debug in interface Log

Parameters:

o - log this message

t - log this cause

See Also:

Log.debug(java.lang.Object, java.lang.Throwable)

debug

public void debug(java.lang.Object o)

Description copied from interface: Log

Log a message with debug log level.

Specified by:

debug in interface Log

Parameters:

o - log this message

See Also:

Log.debug(java.lang.Object)

error

public void error(java.lang.Object o,
                  java.lang.Throwable t)

Description copied from interface: Log

Log an error with error log level.

Specified by:

error in interface Log

Parameters:

o - log this message

t - log this cause

See Also:

Log.error(java.lang.Object, java.lang.Throwable)

error

public void error(java.lang.Object o)

Description copied from interface: Log

Log a message with error log level.

Specified by:

error in interface Log

Parameters:

o - log this message

See Also:

Log.error(java.lang.Object)

fatal

public void fatal(java.lang.Object o,
                  java.lang.Throwable t)

Description copied from interface: Log

Log an error with fatal log level.

Specified by:

fatal in interface Log

Parameters:

o - log this message

t - log this cause

See Also:

Log.fatal(java.lang.Object, java.lang.Throwable)

fatal

public void fatal(java.lang.Object o)

Description copied from interface: Log

Log a message with fatal log level.

Specified by:

fatal in interface Log

Parameters:

o - log this message

See Also:

Log.fatal(java.lang.Object)

info

public void info(java.lang.Object o,
                 java.lang.Throwable t)

Description copied from interface: Log

Log an error with info log level.

Specified by:

info in interface Log

Parameters:

o - log this message

t - log this cause

See Also:

Log.info(java.lang.Object, java.lang.Throwable)

info

public void info(java.lang.Object o)

Description copied from interface: Log

Log a message with info log level.

Specified by:

info in interface Log

Parameters:

o - log this message

See Also:

Log.info(java.lang.Object)

isDebugEnabled

public boolean isDebugEnabled()

Description copied from interface: Log

Is debug logging currently enabled?

Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than debug.

Specified by:

isDebugEnabled in interface Log

See Also:

Log.isDebugEnabled()

isErrorEnabled

public boolean isErrorEnabled()

Description copied from interface: Log

Is error logging currently enabled?

Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than error.

Specified by:

isErrorEnabled in interface Log

See Also:

Log.isErrorEnabled()

isFatalEnabled

public boolean isFatalEnabled()

Description copied from interface: Log

Is fatal logging currently enabled?

Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than fatal.

Specified by:

isFatalEnabled in interface Log

See Also:

Log.isFatalEnabled()

isInfoEnabled

public boolean isInfoEnabled()

Description copied from interface: Log

Is info logging currently enabled?

Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than info.

Specified by:

isInfoEnabled in interface Log

See Also:

Log.isInfoEnabled()

isTraceEnabled

public boolean isTraceEnabled()

Description copied from interface: Log

Is trace logging currently enabled?

Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than trace.

Specified by:

isTraceEnabled in interface Log

See Also:

Log.isTraceEnabled()

isWarnEnabled

public boolean isWarnEnabled()

Description copied from interface: Log

Is warn logging currently enabled?

Call this method to prevent having to perform expensive operations (for example, String concatenation) when the log level is more than warn.

Specified by:

isWarnEnabled in interface Log

See Also:

Log.isWarnEnabled()

trace

public void trace(java.lang.Object o,
                  java.lang.Throwable t)

Description copied from interface: Log

Log an error with trace log level.

Specified by:

trace in interface Log

Parameters:

o - log this message

t - log this cause

See Also:

Log.trace(java.lang.Object, java.lang.Throwable)

trace

public void trace(java.lang.Object o)

Description copied from interface: Log

Log a message with trace log level.

Specified by:

trace in interface Log

Parameters:

o - log this message

See Also:

Log.trace(java.lang.Object)

warn

public void warn(java.lang.Object o,
                 java.lang.Throwable t)

Description copied from interface: Log

Log an error with warn log level.

Specified by:

warn in interface Log

Parameters:

o - log this message

t - log this cause

See Also:

Log.warn(java.lang.Object, java.lang.Throwable)

warn

public void warn(java.lang.Object o)

Description copied from interface: Log

Log a message with warn log level.

Specified by:

warn in interface Log

Parameters:

o - log this message

See Also:

Log.warn(java.lang.Object)