Package org.apache.ignite.logger

Class NullLogger

java.lang.Object

org.apache.ignite.logger.NullLogger

All Implemented Interfaces:

IgniteLogger

public class NullLogger
extends Object
implements IgniteLogger

Logger which does not output anything.

Field Summary

Fields

Modifier and Type	Field	Description
static NullLogger	INSTANCE	Singleton instance.

Fields inherited from interface org.apache.ignite.IgniteLogger

DEV_ONLY

Constructor Summary

Constructors

Constructor	Description
NullLogger()

Method Summary

Modifier and Type	Method	Description
void	debug(String msg)	Logs out debug message.
void	error(String msg)	Logs out error message.
void	error(String msg, @Nullable Throwable e)	Logs error message with optional exception.
@Nullable String	fileName()	Gets name of the file being logged to if one is configured or null otherwise.
IgniteLogger	getLogger(Object ctgr)	Creates new logger with given category based off the current instance.
void	info(String msg)	Logs out information message.
boolean	isDebugEnabled()	Tests whether debug level is enabled.
boolean	isInfoEnabled()	Tests whether info level is enabled.
boolean	isQuiet()	Tests whether Logger is in "Quiet mode".
boolean	isTraceEnabled()	Tests whether trace level is enabled.
String	toString()
void	trace(String msg)	Logs out trace message.
void	warning(String msg)	Logs out warning message.
void	warning(String msg, @Nullable Throwable e)	Logs out warning message with optional exception.
static IgniteLogger	whenNull(IgniteLogger log)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.IgniteLogger

debug, error, info, trace, warning

Field Detail

INSTANCE

public static final NullLogger INSTANCE

Singleton instance.

Constructor Detail

NullLogger

public NullLogger()

Method Detail

whenNull

public static IgniteLogger whenNull(IgniteLogger log)

Parameters:

log - Logger.

Returns:

Specified logger if it is not null, NullLogger otherwise.

getLogger

public IgniteLogger getLogger(Object ctgr)

Creates new logger with given category based off the current instance.

Specified by:

getLogger in interface IgniteLogger

Parameters:

ctgr - Category for new logger.

Returns:

New logger with given category.

trace

public void trace(String msg)

Logs out trace message.

Specified by:

trace in interface IgniteLogger

Parameters:

msg - Trace message.

debug

public void debug(String msg)

Logs out debug message.

Specified by:

debug in interface IgniteLogger

Parameters:

msg - Debug message.

info

public void info(String msg)

Logs out information message.

Specified by:

info in interface IgniteLogger

Parameters:

msg - Information message.

warning

public void warning(String msg)

Logs out warning message.

Specified by:

warning in interface IgniteLogger

Parameters:

msg - Warning message.

warning

public void warning(String msg,
                    @Nullable
                    @Nullable Throwable e)

Logs out warning message with optional exception.

Specified by:

warning in interface IgniteLogger

Parameters:

msg - Warning message.

e - Optional exception (can be null).

error

public void error(String msg)

Logs out error message.

Specified by:

error in interface IgniteLogger

Parameters:

msg - Error message.

error

public void error(String msg,
                  @Nullable
                  @Nullable Throwable e)

Logs error message with optional exception.

Specified by:

error in interface IgniteLogger

Parameters:

msg - Error message.

e - Optional exception (can be null).

isTraceEnabled

public boolean isTraceEnabled()

Tests whether trace level is enabled.

Specified by:

isTraceEnabled in interface IgniteLogger

Returns:

true in case when trace level is enabled, false otherwise.

isDebugEnabled

public boolean isDebugEnabled()

Tests whether debug level is enabled.

Specified by:

isDebugEnabled in interface IgniteLogger

Returns:

true in case when debug level is enabled, false otherwise.

isInfoEnabled

public boolean isInfoEnabled()

Tests whether info level is enabled.

Specified by:

isInfoEnabled in interface IgniteLogger

Returns:

true in case when info level is enabled, false otherwise.

isQuiet

public boolean isQuiet()

Tests whether Logger is in "Quiet mode".

Specified by:

isQuiet in interface IgniteLogger

Returns:

true "Quiet mode" is enabled, false otherwise

fileName

@Nullable
public @Nullable String fileName()

Gets name of the file being logged to if one is configured or null otherwise.

Specified by:

fileName in interface IgniteLogger

Returns:

Name of the file being logged to if one is configured or null otherwise.

toString

public String toString()

Overrides:

toString in class Object