net.htmlparser.jericho

Class QueueLogger

Object

QueueLogger

All Implemented Interfaces:

Logger

public class QueueLogger
extends Object
implements Logger

Provides an implementation of the Logger interface that queues LogItem objects for processing later, or in another thread.

The underlying queue implementation is ConcurrentLinkedQueue meaning that log items can safely be produced and consumed in separate threads.

Note that each logging level can be enabled independently in this implementation. All levels are enabled by default.

Constructor Summary

Constructors

Constructor and Description
QueueLogger() Constructs a new QueueLogger with a new queue.
QueueLogger(java.util.concurrent.ConcurrentLinkedQueue<LogItem> queue) Constructs a new QueueLogger using the specified queue.

Method Summary

Modifier and Type	Method and Description
void	debug(String message) Queues a LogItem at the DEBUG level.
void	error(String message) Queues a LogItem at the ERROR level.
java.util.concurrent.ConcurrentLinkedQueue<LogItem>	getQueue() Returns the queue of LogItems.
void	info(String message) Queues a LogItem at the INFO level.
boolean	isDebugEnabled() Indicates whether logging events at the DEBUG level are queued.
boolean	isErrorEnabled() Indicates whether logging events at the ERROR level are queued.
boolean	isInfoEnabled() Indicates whether logging events at the INFO level are queued.
boolean	isWarnEnabled() Indicates whether logging events at the WARNING level are queued.
void	outputTo(Logger logger) Outputs all of the queued LogItems to the specified Logger, clearing the queue.
void	setDebugEnabled(boolean debugEnabled) Sets whether logging events at the DEBUG level are queued.
void	setErrorEnabled(boolean errorEnabled) Sets whether logging events at the ERROR level are queued.
void	setInfoEnabled(boolean infoEnabled) Sets whether logging events at the INFO level are queued.
void	setWarnEnabled(boolean warnEnabled) Sets whether logging events at the WARNING level are queued.
void	warn(String message) Queues a LogItem at the WARNING level.

Methods inherited from class Object

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

Constructor Detail

QueueLogger

public QueueLogger()

Constructs a new QueueLogger with a new queue.

QueueLogger

public QueueLogger(java.util.concurrent.ConcurrentLinkedQueue<LogItem> queue)

Constructs a new QueueLogger using the specified queue.

Parameters:

queue - the queue to add LogItems to.

Method Detail

getQueue

public java.util.concurrent.ConcurrentLinkedQueue<LogItem> getQueue()

Returns the queue of LogItems.

Because the queue implementation is ConcurrentLinkedQueue, the log items can safely be produced and consumed in separate threads.

Returns:

the queue of LogItems.

error

public void error(String message)

Queues a LogItem at the ERROR level.

Specified by:

error in interface Logger

Parameters:

message - the message to queue.

warn

public void warn(String message)

Queues a LogItem at the WARNING level.

Specified by:

warn in interface Logger

Parameters:

message - the message to queue.

info

public void info(String message)

Queues a LogItem at the INFO level.

Specified by:

info in interface Logger

Parameters:

message - the message to queue.

debug

public void debug(String message)

Queues a LogItem at the DEBUG level.

Specified by:

debug in interface Logger

Parameters:

message - the message to queue.

isErrorEnabled

public boolean isErrorEnabled()

Indicates whether logging events at the ERROR level are queued.

Specified by:

isErrorEnabled in interface Logger

Returns:

true if logging events at the ERROR level are queued, otherwise false.

setErrorEnabled

public void setErrorEnabled(boolean errorEnabled)

Sets whether logging events at the ERROR level are queued.

Parameters:

errorEnabled - determines whether logging events at the ERROR level are queued.

isWarnEnabled

public boolean isWarnEnabled()

Indicates whether logging events at the WARNING level are queued.

Specified by:

isWarnEnabled in interface Logger

Returns:

true if logging events at the WARNING level are queued, otherwise false.

setWarnEnabled

public void setWarnEnabled(boolean warnEnabled)

Sets whether logging events at the WARNING level are queued.

Parameters:

warnEnabled - determines whether logging events at the WARNING level are queued.

isInfoEnabled

public boolean isInfoEnabled()

Indicates whether logging events at the INFO level are queued.

Specified by:

isInfoEnabled in interface Logger

Returns:

true if logging events at the INFO level are queued, otherwise false.

setInfoEnabled

public void setInfoEnabled(boolean infoEnabled)

Sets whether logging events at the INFO level are queued.

Parameters:

infoEnabled - determines whether logging events at the INFO level are queued.

isDebugEnabled

public boolean isDebugEnabled()

Indicates whether logging events at the DEBUG level are queued.

Specified by:

isDebugEnabled in interface Logger

Returns:

true if logging events at the DEBUG level are queued, otherwise false.

setDebugEnabled

public void setDebugEnabled(boolean debugEnabled)

Sets whether logging events at the DEBUG level are queued.

Parameters:

debugEnabled - determines whether logging events at the DEBUG level are queued.

outputTo

public void outputTo(Logger logger)

Outputs all of the queued LogItems to the specified Logger, clearing the queue.

Parameters:

logger - the Logger to receive the queued log items.