Package org.apache.log4j.helpers

Class LogLog

java.lang.Object

org.apache.log4j.helpers.LogLog

public class LogLog
extends Object

This class used to output log statements from within the log4j package.

Log4j components cannot make log4j logging calls. However, it is sometimes useful for the user to learn about what log4j is doing. You can enable log4j internal logging by defining the log4j.configDebug variable.

All log4j internal debug calls go to System.out whereas internal error messages are sent to System.err. All internal messages are prepended with the string "log4j: ".

Since:

0.8.2

Author:

Ceki Gülcü

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CONFIG_DEBUG_KEY	Deprecated. Use DEBUG_KEY instead.
static final String	DEBUG_KEY	Defining this value makes log4j print log4j-internal debug statements to System.out.
protected static boolean	debugEnabled

Constructor Summary

Constructors

Constructor	Description
LogLog()

Method Summary

Modifier and Type	Method	Description
static void	debug(String msg)	This method is used to output log4j internal debug statements.
static void	debug(String msg, Throwable t)	This method is used to output log4j internal debug statements.
static void	error(String msg)	This method is used to output log4j internal error statements.
static void	error(String msg, Throwable t)	This method is used to output log4j internal error statements.
static void	setInternalDebugging(boolean enabled)	Allows to enable/disable log4j internal logging.
static void	setQuietMode(boolean quietMode)	In quite mode no LogLog generates strictly no output, not even for errors.
static void	warn(String msg)	This method is used to output log4j internal warning statements.
static void	warn(String msg, Throwable t)	This method is used to output log4j internal warnings.

Methods inherited from class java.lang.Object

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

Field Details

DEBUG_KEY

public static final String DEBUG_KEY

Defining this value makes log4j print log4j-internal debug statements to System.out.

The value of this string is log4j.debug.

Note that the search for all option names is case-sensitive.

See Also:

• Constant Field Values

CONFIG_DEBUG_KEY

public static final String CONFIG_DEBUG_KEY

Deprecated.

Use DEBUG_KEY instead.

Defining this value makes log4j components print log4j-internal debug statements to System.out.

The value of this string is log4j.configDebug.

Note that the search for all option names is case-sensitive.

See Also:

• Constant Field Values

debugEnabled

protected static boolean debugEnabled

Constructor Details

LogLog

public LogLog()

Method Details

setInternalDebugging

public static void setInternalDebugging(boolean enabled)

Allows to enable/disable log4j internal logging.

debug

public static void debug(String msg)

This method is used to output log4j internal debug statements. Output goes to System.out.

debug

public static void debug(String msg,
 Throwable t)

This method is used to output log4j internal debug statements. Output goes to System.out.

error

public static void error(String msg)

This method is used to output log4j internal error statements. There is no way to disable error statements. Output goes to System.err.

error

public static void error(String msg,
 Throwable t)

This method is used to output log4j internal error statements. There is no way to disable error statements. Output goes to System.err.

setQuietMode

public static void setQuietMode(boolean quietMode)

In quite mode no LogLog generates strictly no output, not even for errors.

Parameters:

quietMode - A true for not

warn

public static void warn(String msg)

This method is used to output log4j internal warning statements. There is no way to disable warning statements. Output goes to System.err.

warn

public static void warn(String msg,
 Throwable t)

This method is used to output log4j internal warnings. There is no way to disable warning statements. Output goes to System.err.