com.netflix.turbine.monitor

Class TurbineDataMonitor<K extends TurbineData>

java.lang.Object

com.netflix.turbine.monitor.TurbineDataMonitor<K>

Type Parameters:

K -

Direct Known Subclasses:

ClusterMonitor, InstanceMonitor

public abstract class TurbineDataMonitor<K extends TurbineData>
extends java.lang.Object

Base class of a monitor that can be extended by other implementations such as InstanceMonitor and ClusterMonitor

Constructor Summary

Constructors

Constructor and Description
TurbineDataMonitor()

Method Summary

Methods

Modifier and Type	Method and Description
abstract TurbineDataDispatcher<K>	getDispatcher()
int	getEventDiscarded()
int	getEventProcessed()
long	getLastEventUpdateTime() Method that determines when this monitor last received an update.
abstract java.lang.String	getName()
StatsRollingNumber	getRolling2MinuteStats(TurbineData data)
abstract Instance	getStatsInstance()
void	markEventDiscarded()
void	markEventProcessed()
abstract void	startMonitor() Start monitoring for data
abstract void	stopMonitor() Stop monitoring for data and signal shutdown to any listeners interested in data

Methods inherited from class java.lang.Object

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

Constructor Detail

TurbineDataMonitor

public TurbineDataMonitor()

Method Detail

getName

public abstract java.lang.String getName()

Returns:

String

startMonitor

public abstract void startMonitor()
                           throws java.lang.Exception

Start monitoring for data

Throws:

java.lang.Exception

stopMonitor

public abstract void stopMonitor()

Stop monitoring for data and signal shutdown to any listeners interested in data

getDispatcher

public abstract TurbineDataDispatcher<K> getDispatcher()

Returns:

TurbineDataDispatcher

getStatsInstance

public abstract Instance getStatsInstance()

Returns:

Instance

markEventDiscarded

public void markEventDiscarded()

markEventProcessed

public void markEventProcessed()

getEventDiscarded

public int getEventDiscarded()

getEventProcessed

public int getEventProcessed()

getRolling2MinuteStats

public StatsRollingNumber getRolling2MinuteStats(TurbineData data)

getLastEventUpdateTime

public long getLastEventUpdateTime()

Method that determines when this monitor last received an update. This is used for checking and reaping stale monitors, especially due to stale connections in the cloud.

Returns:

-1 as a default to opt out from implementing this functionality. Else return the timestamp in millis marking the last update occurance.