com.jamonapi.log4j
Class Log4jBufferListener

java.lang.Object
  com.jamonapi.JAMonBufferListener
      com.jamonapi.log4j.Log4jBufferListener

All Implemented Interfaces:

CopyJAMonListener, JAMonListener, java.util.EventListener

public class Log4jBufferListener
extends JAMonBufferListener

This class can act as a standard JAMonBufferListener/FIFOBuffer or more interestingly if used with log4j it will put in the Buffer data that although designed to work as a Buffer that displays details unique to log4j, if the monitor does not have a Log4jMonKey, it will fallback to Standard JAMonBufferListener behaviour. This makes it so no problems exist if someone inadvertently assigns a Log4jBufferListener to a non log4j entity.

It will create details of the key details (Label (formattedMessage), LoggerName, Level, Threadname, Exception) followed by lastvalue, active, and the date of the invocation

Author:

steve souza

Nested Class Summary

Nested classes/interfaces inherited from class com.jamonapi.JAMonBufferListener

JAMonBufferListener.HeaderInfo

Constructor Summary

Log4jBufferListener()
Constructor that creaates this object with its default name (the class name)

Log4jBufferListener(java.lang.String name)
Pass in the jamonListener name

Log4jBufferListener(java.lang.String name, BufferList list)
Name the listener and pass in the jamon BufferList to use

Method Summary

JAMonListener	copy() Makes a usable copy of this BufferListener
DetailData	getDetailData()
java.lang.String[]	getHeader() Returns the valid header for display of this buffer
void	processEvent(Monitor mon) When this event is fired the monitor will be added to the rolling buffer.
protected java.lang.Object[]	toArray(org.apache.log4j.spi.LoggingEvent event, Monitor mon) method that returns an array to use in the Buffer.

Methods inherited from class com.jamonapi.JAMonBufferListener

addRow, addRow, getBufferList, getDefaultHeaderInfo, getHeaderInfo, getName, getRowCount, hasData, isEmpty, setName

Methods inherited from class java.lang.Object

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

Constructor Detail

Log4jBufferListener

public Log4jBufferListener()

Constructor that creaates this object with its default name (the class name)

Log4jBufferListener

public Log4jBufferListener(java.lang.String name)

Pass in the jamonListener name

Log4jBufferListener

public Log4jBufferListener(java.lang.String name,
                           BufferList list)

Name the listener and pass in the jamon BufferList to use

Method Detail

processEvent

public void processEvent(Monitor mon)

When this event is fired the monitor will be added to the rolling buffer. If it is a log4j monitor the buffer will be specific to log4j fields (i.e.LoggingEvent info such as threadname, formattedmessage, exception stack trace and a few others. If it is not then the super class's processEvent is called.

Specified by:

processEvent in interface JAMonListener

Overrides:

processEvent in class JAMonBufferListener

toArray

protected java.lang.Object[] toArray(org.apache.log4j.spi.LoggingEvent event,
                                     Monitor mon)

method that returns an array to use in the Buffer. It can return any sortable objects as long as they match what is returned in the getHeader() method.

Parameters:

event -

mon -

Returns:

Object[]

copy

public JAMonListener copy()

Makes a usable copy of this BufferListener

Specified by:

copy in interface CopyJAMonListener

Overrides:

copy in class JAMonBufferListener

getHeader

public java.lang.String[] getHeader()

Returns the valid header for display of this buffer

getDetailData

public DetailData getDetailData()

Overrides:

getDetailData in class JAMonBufferListener