com.facebook.logging

Class LoggerImpl

java.lang.Object

com.facebook.logging.LoggerImpl

All Implemented Interfaces:

Logger

public class LoggerImpl
extends Object
implements Logger

Logger with efficient var-args support. Underlying logger is sl4j, but may be swapped to any logger.

Constructor Summary

Constructors

Constructor and Description
LoggerImpl(org.slf4j.Logger logger)

Method Summary

Modifier and Type	Method and Description
void	debug(String format, Object... args)
void	debug(String message, Throwable throwable) Deprecated.
void	debug(Throwable t, String format, Object... args)
void	error(String format, Object... args)
void	error(String message, Throwable throwable) Deprecated.
void	error(Throwable t, String format, Object... args)
static Logger	getClassLogger() Returns a logger for the calling class or context.
static Logger	getLogger(Class<?> clazz)
static Logger	getLogger(String name)
String	getName()
void	info(String format, Object... args)
void	info(String message, Throwable throwable) Deprecated.
void	info(Throwable t, String format, Object... args)
boolean	isDebugEnabled()
boolean	isErrorEnabled()
boolean	isInfoEnabled()
boolean	isTraceEnabled()
boolean	isWarnEnabled()
void	trace(String format, Object... args)
void	trace(Throwable t, String format, Object... args)
void	warn(String format, Object... args)
void	warn(String message, Throwable throwable) Deprecated.
void	warn(Throwable t, String format, Object... args)

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggerImpl

public LoggerImpl(org.slf4j.Logger logger)

Method Detail

getLogger

public static Logger getLogger(Class<?> clazz)

getLogger

public static Logger getLogger(String name)

getClassLogger

public static Logger getClassLogger()

Returns a logger for the calling class or context.

The fully-qualified name of that class is used to get an slf4j logger, which is then wrapped. Typical usage is to use this method to initialize a static member variable, e.g., private static final Logger LOG = Logger.getLogger();

As getStackTrace() isn't super cheap, this is not the sort of thing you want (or need) to be doing hundreds of times a second;

Returns:

a logger for the current scope

isTraceEnabled

public boolean isTraceEnabled()

Specified by:

isTraceEnabled in interface Logger

isDebugEnabled

public boolean isDebugEnabled()

Specified by:

isDebugEnabled in interface Logger

isInfoEnabled

public boolean isInfoEnabled()

Specified by:

isInfoEnabled in interface Logger

isWarnEnabled

public boolean isWarnEnabled()

Specified by:

isWarnEnabled in interface Logger

isErrorEnabled

public boolean isErrorEnabled()

Specified by:

isErrorEnabled in interface Logger

trace

public void trace(String format,
                  Object... args)

Specified by:

trace in interface Logger

trace

public void trace(Throwable t,
                  String format,
                  Object... args)

Specified by:

trace in interface Logger

debug

public void debug(String format,
                  Object... args)

Specified by:

debug in interface Logger

debug

public void debug(Throwable t,
                  String format,
                  Object... args)

Specified by:

debug in interface Logger

debug

@Deprecated
public void debug(String message,
                              Throwable throwable)

Deprecated.

Specified by:

debug in interface Logger

info

public void info(String format,
                 Object... args)

Specified by:

info in interface Logger

info

public void info(Throwable t,
                 String format,
                 Object... args)

Specified by:

info in interface Logger

info

@Deprecated
public void info(String message,
                             Throwable throwable)

Deprecated.

Specified by:

info in interface Logger

warn

public void warn(String format,
                 Object... args)

Specified by:

warn in interface Logger

warn

public void warn(Throwable t,
                 String format,
                 Object... args)

Specified by:

warn in interface Logger

warn

@Deprecated
public void warn(String message,
                             Throwable throwable)

Deprecated.

Specified by:

warn in interface Logger

error

public void error(String format,
                  Object... args)

Specified by:

error in interface Logger

error

public void error(Throwable t,
                  String format,
                  Object... args)

Specified by:

error in interface Logger

error

@Deprecated
public void error(String message,
                              Throwable throwable)

Deprecated.

Specified by:

error in interface Logger

getName

public String getName()

Specified by:

getName in interface Logger

Returns:

the name of the logger instance