co.cask.cdap.metrics.collect

Class LocalMetricsCollectionService

java.lang.Object

com.google.common.util.concurrent.AbstractScheduledService

co.cask.cdap.metrics.collect.AggregatedMetricsCollectionService

co.cask.cdap.metrics.collect.LocalMetricsCollectionService

All Implemented Interfaces:

MetricsCollectionService, com.google.common.util.concurrent.Service

public final class LocalMetricsCollectionService
extends AggregatedMetricsCollectionService

A MetricsCollectionService that writes to MetricsTable directly. It also has a scheduling job that clean up old metrics periodically.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.util.concurrent.AbstractScheduledService

com.google.common.util.concurrent.AbstractScheduledService.CustomScheduler, com.google.common.util.concurrent.AbstractScheduledService.Scheduler

Nested classes/interfaces inherited from interface com.google.common.util.concurrent.Service

com.google.common.util.concurrent.Service.Listener, com.google.common.util.concurrent.Service.State

Field Summary

Fields

Modifier and Type	Field and Description
static com.google.common.collect.ImmutableMap<String,String>	METRICS_PROCESSOR_CONTEXT

Constructor Summary

Constructors

Constructor and Description
LocalMetricsCollectionService(CConfiguration cConf, MetricStore metricStore)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	publish(Iterator<MetricValues> metrics) Publishes the given collection of MetricValues.
protected void	shutDown()
protected void	startUp()

Methods inherited from class co.cask.cdap.metrics.collect.AggregatedMetricsCollectionService

executor, getContext, runOneIteration, scheduler

Methods inherited from class com.google.common.util.concurrent.AbstractScheduledService

addListener, isRunning, start, startAndWait, state, stop, stopAndWait, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.util.concurrent.Service

addListener, isRunning, start, startAndWait, state, stop, stopAndWait

Field Detail

METRICS_PROCESSOR_CONTEXT

public static final com.google.common.collect.ImmutableMap<String,String> METRICS_PROCESSOR_CONTEXT

Constructor Detail

LocalMetricsCollectionService

@Inject
public LocalMetricsCollectionService(CConfiguration cConf,
                                    MetricStore metricStore)

Method Detail

publish

protected void publish(Iterator<MetricValues> metrics)
                throws Exception

Description copied from class: AggregatedMetricsCollectionService

Publishes the given collection of MetricValues. When this method returns, the given Iterator will no longer be valid. This method should process the input iterator and returns quickly. Any long operations should be run in a separated thread. This method is guaranteed not to get concurrent calls.

Specified by:

publish in class AggregatedMetricsCollectionService

Parameters:

metrics - collection of MetricValues to publish.

Throws:

Exception - if there is error raised during publish.

startUp

protected void startUp()
                throws Exception

Overrides:

startUp in class com.google.common.util.concurrent.AbstractScheduledService

Throws:

Exception

shutDown

protected void shutDown()
                 throws Exception

Overrides:

shutDown in class AggregatedMetricsCollectionService

Throws:

Exception