org.apache.hadoop.metrics.jvm
Class EventCounter

java.lang.Object
  org.apache.log4j.AppenderSkeleton
      org.apache.hadoop.metrics.jvm.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 three levels: fatal, error and warn.

Field Summary

Fields inherited from class org.apache.log4j.AppenderSkeleton

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

Constructor Summary

EventCounter()

Method Summary

void	append(org.apache.log4j.spi.LoggingEvent event)
void	close()
static long	getError()
static long	getFatal()
static long	getInfo()
static long	getWarn()
boolean	requiresLayout()

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()

Method Detail

getFatal

public static long getFatal()

getError

public static long getError()

getWarn

public static long getWarn()

getInfo

public static long getInfo()

append

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

Specified by:

append in class org.apache.log4j.AppenderSkeleton

close

public void close()

Specified by:

close in interface org.apache.log4j.Appender

Specified by:

close in class org.apache.log4j.AppenderSkeleton

requiresLayout

public boolean requiresLayout()

Specified by:

requiresLayout in interface org.apache.log4j.Appender

Specified by:

requiresLayout in class org.apache.log4j.AppenderSkeleton