edu.snu.coral.runtime.master

Interface MetricMessageHandler

All Known Implementing Classes:

MetricManagerMaster

@DefaultImplementation(value=MetricManagerMaster.class)
public interface MetricMessageHandler

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.

Method Detail

onMetricMessageReceived

void onMetricMessageReceived(String metricKey,
                             String metricValue)

Handle the received metric message.

Parameters:

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

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

getMetricByKey

List<String> getMetricByKey(String metricKey)

Retrieves the string form of metric given the metric key.

Parameters:

metricKey - to retrieve the metric for

Returns:

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

terminate

void terminate()

Cleans up and terminates this handler.