dsto.dfc.logging
Class LogMessageBuffer

java.lang.Object
  dsto.dfc.collections.BasicCollectionEventSource
      dsto.dfc.logging.LogMessageBuffer

All Implemented Interfaces:

LogListener, Serializable, EventListener

public class LogMessageBuffer
extends BasicCollectionEventSource
implements LogListener

Stores log messages emitted by the system log.

Version:

$Revision$

See Also:

Serialized Form

Field Summary

protected LogFilter

filter

Constructor Summary

LogMessageBuffer()

LogMessageBuffer(int maxEvents)

Method Summary

void	add(LogEvent event) Add an event to the buffer.
void	add(LogEvent event, int index) Add an event to the specified index of buffer.
void	clear()
void	disableAll()
void	dispose()
void	enableAll()
protected void	expireEvents() Expire any excess events from the buffer so that a new event may be added.
LogEvent	getEvent(int index)
int	getEventCount()
int	getMaxEvents()
int	indexOfEvent(LogEvent event)
Iterator	iterator()
void	messageReceived(LogEvent e)
void	remove(int index) Remove an event at the specified index from buffer.
void	remove(LogEvent event) Remove an event from the buffer.
void	setEnabled(int type, boolean enabled)
void	setMaxEvents(int newValue) Set the maximum number of events that are stored in the buffer.
Object[]	toArray()
void	write(PrintWriter printWriter) Write the contents of the buffer.
void	write(Writer writer) Write the contents of the buffer.

Methods inherited from class dsto.dfc.collections.BasicCollectionEventSource

addCollectionListener, clone, fireElementAdded, fireElementAdded, fireElementRemoved, fireElementRemoved, fireElementsAdded, fireElementsAdded, fireElementsAdded, fireElementsRemoved, fireElementsRemoved, fireElementsRemoved, removeCollectionListener

Methods inherited from class java.lang.Object

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

Field Detail

filter

protected LogFilter filter

Constructor Detail

LogMessageBuffer

public LogMessageBuffer()

LogMessageBuffer

public LogMessageBuffer(int maxEvents)

Method Detail

dispose

public void dispose()

disableAll

public void disableAll()

enableAll

public void enableAll()

setEnabled

public void setEnabled(int type,
                       boolean enabled)

getMaxEvents

public int getMaxEvents()

setMaxEvents

public void setMaxEvents(int newValue)

Set the maximum number of events that are stored in the buffer. After this limit is reached, events are expired on a FIFO basis.

clear

public void clear()

getEventCount

public int getEventCount()

getEvent

public LogEvent getEvent(int index)

indexOfEvent

public int indexOfEvent(LogEvent event)

iterator

public Iterator iterator()

toArray

public Object[] toArray()

add

public void add(LogEvent event)

Add an event to the buffer.

add

public void add(LogEvent event,
                int index)

Add an event to the specified index of buffer.

remove

public void remove(LogEvent event)

Remove an event from the buffer.

remove

public void remove(int index)

Remove an event at the specified index from buffer.

write

public void write(Writer writer)
           throws SecurityException

Write the contents of the buffer.

Throws:

SecurityException

See Also:

write(PrintWriter)

write

public void write(PrintWriter printWriter)

Write the contents of the buffer.

expireEvents

protected void expireEvents()

Expire any excess events from the buffer so that a new event may be added.

messageReceived

public void messageReceived(LogEvent e)

Specified by:

messageReceived in interface LogListener