edu.snu.coral.runtime.master

Class MetricManagerMaster

java.lang.Object

edu.snu.coral.runtime.master.MetricManagerMaster

All Implemented Interfaces:

MetricMessageHandler

public final class MetricManagerMaster
extends Object
implements MetricMessageHandler

A default metric message handler.

Method Summary

Modifier and Type	Method and Description
List<String>	getMetricByKey(String metricKey) Retrieves the string form of metric given the metric key.
void	onMetricMessageReceived(String metricKey, String metricValue) Handle the received metric message.
void	terminate() Cleans up and terminates this handler.

Methods inherited from class java.lang.Object

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

Method Detail

onMetricMessageReceived

public void onMetricMessageReceived(String metricKey,
                                    String metricValue)

Description copied from interface: MetricMessageHandler

Handle the received metric message.

Specified by:

onMetricMessageReceived in interface MetricMessageHandler

Parameters:

metricKey - a given key for the metric (ex. TaskGroup ID)

metricValue - the metric formatted as a string (ex. JSON).

getMetricByKey

public List<String> getMetricByKey(String metricKey)

Description copied from interface: MetricMessageHandler

Retrieves the string form of metric given the metric key.

Specified by:

getMetricByKey in interface MetricMessageHandler

Parameters:

metricKey - to retrieve the metric for

Returns:

the list of accumulated metric in string (ex. JSON)

terminate

public void terminate()

Description copied from interface: MetricMessageHandler

Cleans up and terminates this handler.

Specified by:

terminate in interface MetricMessageHandler