org.apache.log4j.lf5

Class LF5Appender

java.lang.Object

org.apache.log4j.AppenderSkeleton

org.apache.log4j.lf5.LF5Appender

All Implemented Interfaces:

Appender, OptionHandler

public class LF5Appender
extends AppenderSkeleton

LF5Appender logs events to a swing based logging console. The swing console supports turning categories on and off, multiple detail level views, as well as full text searching and many other capabilties.

Author:

Brent Sprecher

Field Summary

Fields

Modifier and Type	Field and Description
protected static LogBrokerMonitor	_defaultLogMonitor
protected static AppenderFinalizer	_finalizer
protected LogBrokerMonitor	_logMonitor

Fields inherited from class org.apache.log4j.AppenderSkeleton

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

Constructor Summary

Constructors

Constructor and Description
LF5Appender() Constructs a LF5Appender using the default instance of the LogBrokerMonitor.
LF5Appender(LogBrokerMonitor monitor) Constructs a LF5Appender using an instance of a LogBrokerMonitor supplied by the user.

Method Summary

Modifier and Type	Method and Description
void	append(LoggingEvent event) Appends a LoggingEvent record to the LF5Appender.
void	close() This method is an empty implementation of the close() method inherited from the org.apache.log4j.Appender interface.
boolean	equals(LF5Appender compareTo) The equals method compares two LF5Appenders and determines whether they are equal.
protected static LogBrokerMonitor	getDefaultInstance()
protected static int	getDefaultMonitorHeight()
protected static int	getDefaultMonitorWidth()
LogBrokerMonitor	getLogBrokerMonitor()
protected static int	getScreenHeight()
protected static int	getScreenWidth()
static void	main(String[] args)
boolean	requiresLayout() Returns a value that indicates whether this appender requires a Layout.
void	setCallSystemExitOnClose(boolean callSystemExitOnClose) This method is used to set the property that controls whether the LogBrokerMonitor is hidden or closed when a user exits the monitor.
void	setMaxNumberOfRecords(int maxNumberOfRecords)

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

Field Detail

_logMonitor

protected LogBrokerMonitor _logMonitor

_defaultLogMonitor

protected static LogBrokerMonitor _defaultLogMonitor

_finalizer

protected static AppenderFinalizer _finalizer

Constructor Detail

LF5Appender

public LF5Appender()

Constructs a LF5Appender using the default instance of the LogBrokerMonitor. This constructor should always be preferred over the LF5Appender(LogBrokerMonitor monitor) constructor, unless you need to spawn additional log monitoring windows.

LF5Appender

public LF5Appender(LogBrokerMonitor monitor)

Constructs a LF5Appender using an instance of a LogBrokerMonitor supplied by the user. This constructor should only be used when you need to spawn additional log monitoring windows.

Parameters:

monitor - An instance of a LogBrokerMonitor created by the user.

Method Detail

append

public void append(LoggingEvent event)

Appends a LoggingEvent record to the LF5Appender.

Specified by:

append in class AppenderSkeleton

Parameters:

event - The LoggingEvent to be appended.

close

public void close()

This method is an empty implementation of the close() method inherited from the org.apache.log4j.Appender interface.

requiresLayout

public boolean requiresLayout()

Returns a value that indicates whether this appender requires a Layout. This method always returns false. No layout is required for the LF5Appender.

setCallSystemExitOnClose

public void setCallSystemExitOnClose(boolean callSystemExitOnClose)

This method is used to set the property that controls whether the LogBrokerMonitor is hidden or closed when a user exits the monitor. By default, the LogBrokerMonitor will hide itself when the log window is exited, and the swing thread will continue to run in the background. If this property is set to true, the LogBrokerMonitor will call System.exit(0) and will shut down swing thread and the virtual machine.

Parameters:

callSystemExitOnClose - A boolean value indicating whether to call System.exit(0) when closing the log window.

equals

public boolean equals(LF5Appender compareTo)

The equals method compares two LF5Appenders and determines whether they are equal. Two Appenders will be considered equal if, and only if, they both contain references to the same LogBrokerMonitor.

Parameters:

compareTo - A boolean value indicating whether the two LF5Appenders are equal.

getLogBrokerMonitor

public LogBrokerMonitor getLogBrokerMonitor()

main

public static void main(String[] args)

setMaxNumberOfRecords

public void setMaxNumberOfRecords(int maxNumberOfRecords)

getDefaultInstance

protected static LogBrokerMonitor getDefaultInstance()

Returns:

The default instance of the LogBrokerMonitor.

getScreenWidth

protected static int getScreenWidth()

Returns:

the screen width from Toolkit.getScreenSize() if possible, otherwise returns 800

See Also:

Toolkit

getScreenHeight

protected static int getScreenHeight()

Returns:

the screen height from Toolkit.getScreenSize() if possible, otherwise returns 600

See Also:

Toolkit

getDefaultMonitorWidth

protected static int getDefaultMonitorWidth()

getDefaultMonitorHeight

protected static int getDefaultMonitorHeight()