etm.core.aggregation
Class RootAggregator

java.lang.Object
  etm.core.aggregation.RootAggregator

All Implemented Interfaces:

Aggregator

Direct Known Subclasses:

PersistentRootAggregator

public class RootAggregator
extends java.lang.Object
implements Aggregator

An Aggregator that cumulates results, supports both nested and flat aggregation.

Since:

1.2.0

Version:

$Revision: 195 $

Author:

void.fm

Field Summary

protected java.util.Map	aggregates
protected EtmMonitorContext	ctx

Constructor Summary

RootAggregator()

Method Summary

void	add(EtmPoint point) Adds a new EtmPoint to the aggregator.
void	flush() Flushes the current aggregation details.
protected ExecutionAggregate	getAggregate(java.lang.String aName)
AggregatorMetaData	getMetaData() Returns detailed information about the aggregator chain.
void	init(EtmMonitorContext aCtx) Lifecycle Method, will be called before Aggregator.start(), after initalization of the current EtmMonitor runtime.
void	render(MeasurementRenderer renderer) Renders the current state of the aggregator using the provided renderer instance.
void	reset() Resets the internal aggregator state.
void	reset(java.lang.String symbolicName) Resets the internal aggregator state for a etm point.
void	start() Lifecycle method, will be called after all Aggregator instances are initialized by calling Aggregator.init(etm.core.monitor.EtmMonitorContext) and before the EtmMonitor instance will becomes available.
void	stop() Lifecycle method, will be called after the EtmMonitor instance was shutdown.

Methods inherited from class java.lang.Object

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

Field Detail

aggregates

protected java.util.Map aggregates

ctx

protected EtmMonitorContext ctx

Constructor Detail

RootAggregator

public RootAggregator()

Method Detail

reset

public void reset()

Description copied from interface: Aggregator

Resets the internal aggregator state. Persistent states usually aren't affected.

Specified by:

reset in interface Aggregator

reset

public void reset(java.lang.String symbolicName)

Description copied from interface: Aggregator

Resets the internal aggregator state for a etm point. Persistent states usually aren't affected.

Specified by:

reset in interface Aggregator

Parameters:

symbolicName - The name of the etm point to be resetted.

render

public void render(MeasurementRenderer renderer)

Description copied from interface: Aggregator

Renders the current state of the aggregator using the provided renderer instance.

Specified by:

render in interface Aggregator

Parameters:

renderer - The renderer.

flush

public void flush()

Description copied from interface: Aggregator

Flushes the current aggregation details. Buffering Aggragetors should clean up their process buffer.

Specified by:

flush in interface Aggregator

getMetaData

public AggregatorMetaData getMetaData()

Description copied from interface: Aggregator

Returns detailed information about the aggregator chain.

Specified by:

getMetaData in interface Aggregator

Returns:

The AggregatorMetaData.

start

public void start()

Description copied from interface: Aggregator

Lifecycle method, will be called after all Aggregator instances are initialized by calling Aggregator.init(etm.core.monitor.EtmMonitorContext) and before the EtmMonitor instance will becomes available.

Specified by:

start in interface Aggregator

stop

public void stop()

Description copied from interface: Aggregator

Lifecycle method, will be called after the EtmMonitor instance was shutdown.

Specified by:

stop in interface Aggregator

init

public void init(EtmMonitorContext aCtx)

Description copied from interface: Aggregator

Lifecycle Method, will be called before Aggregator.start(), after initalization of the current EtmMonitor runtime. Be aware that Plugins are instantiated, but not started at this point.

Specified by:

init in interface Aggregator

Parameters:

aCtx - The current EtmMonitor Context.

add

public void add(EtmPoint point)

Description copied from interface: Aggregator

Adds a new EtmPoint to the aggregator.

Specified by:

add in interface Aggregator

Parameters:

point - A new collected EtmPoint.

getAggregate

protected ExecutionAggregate getAggregate(java.lang.String aName)