Package com.arpnetworking.clusteraggregator.models

Class CombinedMetricData

java.lang.Object

com.arpnetworking.clusteraggregator.models.CombinedMetricData

public final class CombinedMetricData
extends Object

A metric-based aggregation model. Holds all of the statistics and supporting for a metric on a host. These will be combined in an AggregationRouter to produce the set of cluster statistics.

Author:

Brandon Arp (brandon dot arp at inscopemetrics dot com)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CombinedMetricData.Builder	Builder implementationfor CombinedMetricData.
static class	CombinedMetricData.StatisticValue	Representation of a computed statistic and related data.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CLUSTER_KEY	The key used in dimensions to specify the cluster-dimension.
static final String	HOST_KEY	The key used in dimensions to specify the host-dimension.
static final String	SERVICE_KEY	The key used in dimensions to specify the service-dimension.

Method Summary

Modifier and Type	Method	Description
static long	computePopulationSize(String metricName, Map<Statistic,CombinedMetricData.StatisticValue> statisticValues)	Compute the population size for a metric from its statistic values.
static long	computePopulationSizeFromCalculatedValues(String metricName, Map<Statistic,CalculatedValue<?>> calculatedValues)	Compute the population size for a metric from its calculated values.
Map<Statistic,CombinedMetricData.StatisticValue>	getCalculatedValues()
String	getCluster()
String	getMetricName()
Optional<ZonedDateTime>	getMinRequestTime()
Duration	getPeriod()
ZonedDateTime	getPeriodStart()
String	getService()

Methods inherited from class java.lang.Object

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

Field Details

HOST_KEY

public static final String HOST_KEY

The key used in dimensions to specify the host-dimension.

See Also:

• Constant Field Values

SERVICE_KEY

public static final String SERVICE_KEY

The key used in dimensions to specify the service-dimension.

See Also:

• Constant Field Values

CLUSTER_KEY

public static final String CLUSTER_KEY

The key used in dimensions to specify the cluster-dimension.

See Also:

• Constant Field Values

Method Details

getMetricName

public String getMetricName()

getPeriod

public Duration getPeriod()

getCalculatedValues

public Map<Statistic,CombinedMetricData.StatisticValue> getCalculatedValues()

getPeriodStart

public ZonedDateTime getPeriodStart()

getMinRequestTime

public Optional<ZonedDateTime> getMinRequestTime()

getService

public String getService()

getCluster

public String getCluster()

computePopulationSize

public static long computePopulationSize(String metricName,
 Map<Statistic,CombinedMetricData.StatisticValue> statisticValues)

Compute the population size for a metric from its statistic values.

Parameters:

metricName - the name of the metric

statisticValues - the statistic values for the metric.

Returns:

requires CountStatistic or HistogramStatistic to return an accurate count otherwise returns 1

computePopulationSizeFromCalculatedValues

public static long computePopulationSizeFromCalculatedValues(String metricName,
 Map<Statistic,CalculatedValue<?>> calculatedValues)

Compute the population size for a metric from its calculated values.

Parameters:

metricName - the name of the metric

calculatedValues - the calculated values for the metric.

Returns:

requires CountStatistic or HistogramStatistic to return an accurate count otherwise returns 1