org.apache.accumulo.server.monitor

Class LogService

java.lang.Object

org.apache.log4j.AppenderSkeleton

org.apache.accumulo.server.monitor.LogService

All Implemented Interfaces:

org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler

public class LogService
extends org.apache.log4j.AppenderSkeleton

Hijack log4j and capture log events for display.

Field Summary

Fields inherited from class org.apache.log4j.AppenderSkeleton

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

Constructor Summary

Constructors

Constructor and Description
LogService()

Method Summary

Modifier and Type	Method and Description
protected void	append(org.apache.log4j.spi.LoggingEvent ev)
void	clear()
void	close()
void	doAppend(org.apache.log4j.spi.LoggingEvent event)
List<DedupedLogEvent>	getEvents()
static LogService	getInstance()
boolean	requiresLayout()
static void	startLogListener(AccumuloConfiguration conf, String instanceId, String hostAddress) Place the host:port advertisement for the Monitor's Log4j listener in ZooKeeper

Methods inherited from class org.apache.log4j.AppenderSkeleton

activateOptions, addFilter, clearFilters, 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

Constructor Detail

LogService

public LogService()

Method Detail

startLogListener

public static void startLogListener(AccumuloConfiguration conf,
                                    String instanceId,
                                    String hostAddress)

Place the host:port advertisement for the Monitor's Log4j listener in ZooKeeper

Parameters:

conf - configuration for the instance

instanceId - instanceId for the instance

hostAddress - Address that monitor process is bound to

getInstance

public static LogService getInstance()

append

protected void append(org.apache.log4j.spi.LoggingEvent ev)

Specified by:

append in class org.apache.log4j.AppenderSkeleton

close

public void close()

doAppend

public void doAppend(org.apache.log4j.spi.LoggingEvent event)

Specified by:

doAppend in interface org.apache.log4j.Appender

Overrides:

doAppend in class org.apache.log4j.AppenderSkeleton

requiresLayout

public boolean requiresLayout()

getEvents

public List<DedupedLogEvent> getEvents()

clear

public void clear()