Package com.mapr.log4j

Class MaprfsDailyRollingLogAppender

java.lang.Object

org.apache.log4j.AppenderSkeleton

com.mapr.log4j.MaprfsLogAppender

com.mapr.log4j.MaprfsDailyRollingLogAppender

All Implemented Interfaces:

Flushable, org.apache.hadoop.fs.Syncable, org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler

public class MaprfsDailyRollingLogAppender
extends MaprfsLogAppender

DailyRollingLogAppender for MapRFS - majority of functionality is from DailyRollingFileAppender with enhanced asynch. handling of old files removal

Field Summary

Fields inherited from class com.mapr.log4j.MaprfsLogAppender

BUFFER_SIZE, DIR_PREFIX, failoverAppender, failoverAppenderName, fileName, fileNamePath, immediateFlush, immediateSync, maprFS, nameHierarchy, syncIntervalSeconds, uri

Fields inherited from class org.apache.log4j.AppenderSkeleton

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

Constructor Summary

Constructors

Constructor	Description
MaprfsDailyRollingLogAppender()
MaprfsDailyRollingLogAppender(URI uri, String datePattern)

Method Summary

Modifier and Type	Method	Description
void	activateOptions()
protected void	append(org.apache.log4j.spi.LoggingEvent event)	This method differentiates DailyRollingFileAppender from its super class.
String	getDatePattern()	Returns the value of the DatePattern option.
int	getMaxBackupIndex()
void	setDatePattern(String pattern)	The DatePattern takes a string in the same format as expected by SimpleDateFormat.
void	setMaxBackupIndex(int maxBackups)

Methods inherited from class com.mapr.log4j.MaprfsLogAppender

close, closeFile, createFile, failoverToLocalLogs, flush, getFile, getFileSize, getImmediateFlush, getImmediateSync, getLogFilePermission, getSyncIntervalSeconds, hflush, hsync, requiresLayout, setFailoverAppender, setFile, setFS, setImmediateFlush, setImmediateSync, setSyncIntervalSeconds, setURI, sync, writeFooter, writeHeader

Methods inherited from class org.apache.log4j.AppenderSkeleton

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 Details

MaprfsDailyRollingLogAppender

public MaprfsDailyRollingLogAppender()

MaprfsDailyRollingLogAppender

public MaprfsDailyRollingLogAppender(URI uri,
 String datePattern)

Method Details

setDatePattern

public void setDatePattern(String pattern)

The DatePattern takes a string in the same format as expected by SimpleDateFormat. This options determines the rollover schedule.

getDatePattern

public String getDatePattern()

Returns the value of the DatePattern option.

setMaxBackupIndex

public void setMaxBackupIndex(int maxBackups)

getMaxBackupIndex

public int getMaxBackupIndex()

activateOptions

public void activateOptions()

Specified by:

activateOptions in interface org.apache.log4j.spi.OptionHandler

Overrides:

activateOptions in class MaprfsLogAppender

append

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

This method differentiates DailyRollingFileAppender from its super class.

Before actually logging, this method will check whether it is time to do a rollover. If it is, it will schedule the next rollover time and then rollover.

Overrides:

append in class MaprfsLogAppender