Package org.apache.log.output

Class PriorityFilteringTarget

java.lang.Object

org.apache.log.output.AbstractTarget

org.apache.log.output.PriorityFilteringTarget

All Implemented Interfaces:

ErrorAware, LogTarget, Closeable

public class PriorityFilteringTarget
extends AbstractTarget

This is a priority filtering target that forwards only requests to other (wrapped) targets that have the same or a higher priority.

Author:

Avalon Development Team

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	m_closeWrapped
private Priority	m_priority
private LogTarget[]	m_targets	Log targets in filter chain

Constructor Summary

Constructors

Constructor	Description
PriorityFilteringTarget(Priority priority)
PriorityFilteringTarget(Priority priority, boolean closeWrappedTarget)

Method Summary

Modifier and Type	Method	Description
void	addTarget(LogTarget target)	Add a new target to output chain.
void	close()	Shutdown target.
protected void	doProcessEvent(LogEvent event)	Process a log event, via formatting and outputting it.

Methods inherited from class org.apache.log.output.AbstractTarget

getErrorHandler, isOpen, open, processEvent, setErrorHandler

Methods inherited from class java.lang.Object

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

Field Detail

m_priority

private final Priority m_priority

m_closeWrapped

private final boolean m_closeWrapped

m_targets

private LogTarget[] m_targets

Log targets in filter chain

Constructor Detail

PriorityFilteringTarget

public PriorityFilteringTarget(Priority priority,
                               boolean closeWrappedTarget)

Parameters:

priority - The priority used to filter

closeWrappedTarget - see AbstractWrappingTarget

PriorityFilteringTarget

public PriorityFilteringTarget(Priority priority)

Parameters:

priority - The priority used to filter

Method Detail

addTarget

public void addTarget(LogTarget target)

Add a new target to output chain.

Parameters:

target - the target

doProcessEvent

protected void doProcessEvent(LogEvent event)
                       throws java.lang.Exception

Description copied from class: AbstractTarget

Process a log event, via formatting and outputting it. This should be overidden by subclasses.

Specified by:

doProcessEvent in class AbstractTarget

Parameters:

event - the log event

Throws:

java.lang.Exception - if an event processing error occurs

close

public void close()

Description copied from class: AbstractTarget

Shutdown target. Attempting to write to target after close() will cause errors to be logged.

Specified by:

close in interface Closeable

Overrides:

close in class AbstractTarget