Package org.apache.flink.runtime.metrics.groups

Class FrontMetricGroup<P extends AbstractMetricGroup<?>>

java.lang.Object

org.apache.flink.runtime.metrics.groups.ProxyMetricGroup<P>

org.apache.flink.runtime.metrics.groups.FrontMetricGroup<P>

Type Parameters:

P - parentMetricGroup to AbstractMetricGroup

All Implemented Interfaces:

org.apache.flink.metrics.LogicalScopeProvider, org.apache.flink.metrics.MetricGroup

public class FrontMetricGroup<P extends AbstractMetricGroup<?>>
extends ProxyMetricGroup<P>
implements org.apache.flink.metrics.LogicalScopeProvider

Metric group which forwards all registration calls to a variable parent metric group that injects a variable reporter index into calls to MetricGroup.getMetricIdentifier(String) or MetricGroup.getMetricIdentifier(String, CharacterFilter). This allows us to use reporter-specific delimiters, without requiring any action by the reporter.

Field Summary

Fields inherited from class org.apache.flink.runtime.metrics.groups.ProxyMetricGroup

parentMetricGroup

Constructor Summary

Constructors

Constructor	Description
FrontMetricGroup(ReporterScopedSettings settings, P reference)

Method Summary

Modifier and Type	Method	Description
Map<String,String>	getAllVariables()
String	getLogicalScope(org.apache.flink.metrics.CharacterFilter filter)
String	getLogicalScope(org.apache.flink.metrics.CharacterFilter filter, char delimiter)
String	getMetricIdentifier(String metricName)
String	getMetricIdentifier(String metricName, org.apache.flink.metrics.CharacterFilter filter)
org.apache.flink.metrics.MetricGroup	getWrappedMetricGroup()

Methods inherited from class org.apache.flink.runtime.metrics.groups.ProxyMetricGroup

addGroup, addGroup, addSpan, counter, counter, gauge, getScopeComponents, histogram, meter

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.metrics.MetricGroup

addGroup, counter, counter, gauge, histogram, meter

Constructor Detail

FrontMetricGroup

public FrontMetricGroup(ReporterScopedSettings settings,
                        P reference)

Method Detail

getMetricIdentifier

public String getMetricIdentifier(String metricName)

Specified by:

getMetricIdentifier in interface org.apache.flink.metrics.MetricGroup

Overrides:

getMetricIdentifier in class ProxyMetricGroup<P extends AbstractMetricGroup<?>>

getMetricIdentifier

public String getMetricIdentifier(String metricName,
                                  org.apache.flink.metrics.CharacterFilter filter)

Specified by:

getMetricIdentifier in interface org.apache.flink.metrics.MetricGroup

Overrides:

getMetricIdentifier in class ProxyMetricGroup<P extends AbstractMetricGroup<?>>

getWrappedMetricGroup

public org.apache.flink.metrics.MetricGroup getWrappedMetricGroup()

Specified by:

getWrappedMetricGroup in interface org.apache.flink.metrics.LogicalScopeProvider

getAllVariables

public Map<String,String> getAllVariables()

Specified by:

getAllVariables in interface org.apache.flink.metrics.MetricGroup

Overrides:

getAllVariables in class ProxyMetricGroup<P extends AbstractMetricGroup<?>>

getLogicalScope

public String getLogicalScope(org.apache.flink.metrics.CharacterFilter filter)

Specified by:

getLogicalScope in interface org.apache.flink.metrics.LogicalScopeProvider

getLogicalScope

public String getLogicalScope(org.apache.flink.metrics.CharacterFilter filter,
                              char delimiter)

Specified by:

getLogicalScope in interface org.apache.flink.metrics.LogicalScopeProvider