MaprfsDailyRollingLogAppender (MapR Central Logging)

java.lang.Object
- org.apache.log4j.AppenderSkeleton
- - com.mapr.log4j.MaprfsLogAppender
  - - com.mapr.log4j.MaprfsDailyRollingLogAppender

All Implemented Interfaces:

java.io.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(java.net.URI uri, java.lang.String datePattern)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`activateOptions()`
`protected void`	`append(org.apache.log4j.spi.LoggingEvent event)`	This method differentiates DailyRollingFileAppender from its super class.
`java.lang.String`	`getDatePattern()`	Returns the value of the DatePattern option.
`int`	`getMaxBackupIndex()`
`void`	`setDatePattern(java.lang.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 Detail
  - MaprfsDailyRollingLogAppender
```
public MaprfsDailyRollingLogAppender()
```
  - MaprfsDailyRollingLogAppender
```
public MaprfsDailyRollingLogAppender(java.net.URI uri,
                                     java.lang.String datePattern)
```
- Method Detail
  - setDatePattern
```
public void setDatePattern(java.lang.String pattern)
```
    The DatePattern takes a string in the same format as expected by SimpleDateFormat. This options determines the rollover schedule.
  - getDatePattern
```
public java.lang.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