org.springframework.boot.logging.log4j2

Class Log4J2LoggingSystem

java.lang.Object

org.springframework.boot.logging.LoggingSystem

org.springframework.boot.logging.AbstractLoggingSystem

org.springframework.boot.logging.Slf4JLoggingSystem

org.springframework.boot.logging.log4j2.Log4J2LoggingSystem

public class Log4J2LoggingSystem
extends Slf4JLoggingSystem

LoggingSystem for Log4j 2.

Since:

1.2.0

Author:

Daniel Fullarton, Andy Wilkinson, Alexander Heusingfeld

Field Summary

Fields inherited from class org.springframework.boot.logging.LoggingSystem

SYSTEM_PROPERTY

Constructor Summary

Constructors

Constructor and Description
Log4J2LoggingSystem(ClassLoader classLoader)

Method Summary

Modifier and Type	Method and Description
void	beforeInitialize() Reset the logging system to be limit output.
Runnable	getShutdownHandler() Returns a Runnable that can handle shutdown of this logging system when the JVM exits.
protected String[]	getStandardConfigLocations() Return the standard config locations for this system.
void	initialize(LoggingInitializationContext initializationContext, String configLocation, LogFile logFile) Fully initialize the logging system.
protected boolean	isClassAvailable(String className)
protected void	loadConfiguration(LoggingInitializationContext initializationContext, String location, LogFile logFile) Load a specific configuration.
protected void	loadConfiguration(String location, LogFile logFile)
protected void	loadDefaults(LoggingInitializationContext initializationContext, LogFile logFile) Load sensible defaults for the logging system.
protected void	reinitialize(LoggingInitializationContext initializationContext) Reinitialize the logging system if required.
void	setLogLevel(String loggerName, LogLevel logLevel) Sets the logging level for a given logger.

Methods inherited from class org.springframework.boot.logging.Slf4JLoggingSystem

cleanUp, isBridgeHandlerAvailable

Methods inherited from class org.springframework.boot.logging.AbstractLoggingSystem

applySystemProperties, getClassLoader, getPackagedConfigFile, getSelfInitializationConfig, getSpringConfigLocations, getSpringInitializationConfig

Methods inherited from class org.springframework.boot.logging.LoggingSystem

get, initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

Log4J2LoggingSystem

public Log4J2LoggingSystem(ClassLoader classLoader)

Method Detail

getStandardConfigLocations

protected String[] getStandardConfigLocations()

Description copied from class: AbstractLoggingSystem

Return the standard config locations for this system.

Specified by:

getStandardConfigLocations in class AbstractLoggingSystem

Returns:

the standard config locations

See Also:

AbstractLoggingSystem.getSelfInitializationConfig()

isClassAvailable

protected boolean isClassAvailable(String className)

beforeInitialize

public void beforeInitialize()

Description copied from class: LoggingSystem

Reset the logging system to be limit output. This method may be called before LoggingSystem.initialize(LoggingInitializationContext, String, LogFile) to reduce logging noise until the system has been fully initialized.

Overrides:

beforeInitialize in class Slf4JLoggingSystem

initialize

public void initialize(LoggingInitializationContext initializationContext,
                       String configLocation,
                       LogFile logFile)

Description copied from class: LoggingSystem

Fully initialize the logging system.

Overrides:

initialize in class AbstractLoggingSystem

Parameters:

initializationContext - the logging initialization context

configLocation - a log configuration location or null if default initialization is required

logFile - the log output file that should be written or null for console only output

loadDefaults

protected void loadDefaults(LoggingInitializationContext initializationContext,
                            LogFile logFile)

Description copied from class: AbstractLoggingSystem

Load sensible defaults for the logging system.

Specified by:

loadDefaults in class AbstractLoggingSystem

Parameters:

initializationContext - the logging initialization context

logFile - the file to load or null if no log file is to be written

loadConfiguration

protected void loadConfiguration(LoggingInitializationContext initializationContext,
                                 String location,
                                 LogFile logFile)

Description copied from class: AbstractLoggingSystem

Load a specific configuration.

Overrides:

loadConfiguration in class Slf4JLoggingSystem

Parameters:

initializationContext - the logging initialization context

location - the location of the configuration to load (never null)

logFile - the file to load or null if no log file is to be written

loadConfiguration

protected void loadConfiguration(String location,
                                 LogFile logFile)

reinitialize

protected void reinitialize(LoggingInitializationContext initializationContext)

Description copied from class: AbstractLoggingSystem

Reinitialize the logging system if required. Called when AbstractLoggingSystem.getSelfInitializationConfig() is used and the log file hasn't changed. May be used to reload configuration (for example to pick up additional System properties).

Overrides:

reinitialize in class AbstractLoggingSystem

Parameters:

initializationContext - the logging initialization context

setLogLevel

public void setLogLevel(String loggerName,
                        LogLevel logLevel)

Description copied from class: LoggingSystem

Sets the logging level for a given logger.

Specified by:

setLogLevel in class LoggingSystem

Parameters:

loggerName - the name of the logger to set

logLevel - the log level

getShutdownHandler

public Runnable getShutdownHandler()

Description copied from class: LoggingSystem

Returns a Runnable that can handle shutdown of this logging system when the JVM exits. The default implementation returns null, indicating that no shutdown is required.

Overrides:

getShutdownHandler in class LoggingSystem

Returns:

the shutdown handler, or null