Package org.ametys.runtime.log

Class MemoryAppender

java.lang.Object

org.apache.log4j.AppenderSkeleton

org.ametys.runtime.log.MemoryAppender

All Implemented Interfaces:

Appender, OptionHandler

public class MemoryAppender
extends AppenderSkeleton

Log appender that stores a pile of logs in memory.

Field Summary

Fields

Modifier and Type	Field	Description
private static long	__LOG_EXPIRATION_TIME	Time of expiration of a log (10 minutes)
private static long	__TIME_DURATION_BEFORE_NEXT_CLEAN	Time duration between 2 cleansing of logs queue (10 seconds)
private long	_lastCleanTime
private LinkedList<MemoryLogRecord>	_logsQueue

Fields inherited from class org.apache.log4j.AppenderSkeleton

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

Constructor Summary

Constructors

Constructor	Description
MemoryAppender()	Default constructor for the memory appender

Method Summary

Modifier and Type	Method	Description
private boolean	_matchCategoryFilter(List<String> filterCategories, MemoryLogRecord record)
protected void	append(LoggingEvent event)
void	close()
List<MemoryLogRecord>	getEvents(long fromTimestamp)	Get the logs from a given timestamp
List<MemoryLogRecord>	getEvents(long fromTimestamp, List<String> filterCategories)	Get the logs from a given timestamp and filtered by specific categories
void	removeExpiredEvents(long from)	Remove the expired log records every 10 seconds
boolean	requiresLayout()

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

__LOG_EXPIRATION_TIME

private static final long __LOG_EXPIRATION_TIME

Time of expiration of a log (10 minutes)

See Also:

Constant Field Values

__TIME_DURATION_BEFORE_NEXT_CLEAN

private static final long __TIME_DURATION_BEFORE_NEXT_CLEAN

Time duration between 2 cleansing of logs queue (10 seconds)

See Also:

Constant Field Values

_lastCleanTime

private long _lastCleanTime

_logsQueue

private LinkedList<MemoryLogRecord> _logsQueue

Constructor Detail

MemoryAppender

public MemoryAppender()

Default constructor for the memory appender

Method Detail

append

protected void append(LoggingEvent event)

Specified by:

append in class AppenderSkeleton

getEvents

public List<MemoryLogRecord> getEvents(long fromTimestamp)

Get the logs from a given timestamp

Parameters:

fromTimestamp - If greater than 0, get the events more recent than this timestamp parameter. If equals or less than 0, returns all events

Returns:

The log events

getEvents

public List<MemoryLogRecord> getEvents(long fromTimestamp,
                                       List<String> filterCategories)

Get the logs from a given timestamp and filtered by specific categories

Parameters:

fromTimestamp - If greater than 0, get the events more recent than this timestamp parameter. If equals or less than 0, returns all events

filterCategories - The filter categories

Returns:

The log events

_matchCategoryFilter

private boolean _matchCategoryFilter(List<String> filterCategories,
                                     MemoryLogRecord record)

removeExpiredEvents

public void removeExpiredEvents(long from)

Remove the expired log records every 10 seconds

Parameters:

from - The expiration date in milliseconds

requiresLayout

public boolean requiresLayout()

close

public void close()