alluxio.metrics

Class EventCounter

java.lang.Object

org.apache.log4j.AppenderSkeleton

alluxio.metrics.EventCounter

All Implemented Interfaces:

org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler

public class EventCounter
extends org.apache.log4j.AppenderSkeleton

A log4J Appender that simply counts logging events in four levels: FATAL, ERROR WARN and INFO. The class name is used in log4j.properties

Field Summary

Fields inherited from class org.apache.log4j.AppenderSkeleton

closed, errorHandler, headFilter, layout, name, tailFilter, threshold

Constructor Summary

Constructors

Constructor and Description
EventCounter() The constructor of EventCounter.

Method Summary

Modifier and Type	Method and Description
void	append(org.apache.log4j.spi.LoggingEvent event) Add the number of corresponding level log.
void	close() Release any resources allocated within the appender such as file handles, network connections, etc.
static long	getError() Gets the number of error log.
static long	getFatal() Gets the number of fatal log.
static long	getInfo() Gets the number of info log.
static long	getWarn() Gets the number of warn log.
boolean	requiresLayout() Configurators call this method to determine if the appender requires a layout.

Methods inherited from class org.apache.log4j.AppenderSkeleton

activateOptions, addFilter, clearFilters, doAppend, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold

Methods inherited from class java.lang.Object

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

Constructor Detail

EventCounter

public EventCounter()

The constructor of EventCounter.

Method Detail

getFatal

public static long getFatal()

Gets the number of fatal log.

Returns:

the number of fatal log

getError

public static long getError()

Gets the number of error log.

Returns:

the number of error log

getWarn

public static long getWarn()

Gets the number of warn log.

Returns:

the number of warn log

getInfo

public static long getInfo()

Gets the number of info log.

Returns:

the number of info log

append

public void append(org.apache.log4j.spi.LoggingEvent event)

Add the number of corresponding level log.

Specified by:

append in class org.apache.log4j.AppenderSkeleton

Parameters:

event - event of generating log

close

public void close()

Release any resources allocated within the appender such as file handles, network connections, etc.

requiresLayout

public boolean requiresLayout()

Configurators call this method to determine if the appender requires a layout.

Returns:

if the appender requires a layout