org.apache.flink.runtime.metrics

Class NoOpMetricRegistry

java.lang.Object

org.apache.flink.runtime.metrics.NoOpMetricRegistry

All Implemented Interfaces:

MetricRegistry

public class NoOpMetricRegistry
extends Object
implements MetricRegistry

Metric registry which does nothing.

Field Summary

Fields

Modifier and Type	Field and Description
static MetricRegistry	INSTANCE

Method Summary

Modifier and Type	Method and Description
char	getDelimiter() Returns the global delimiter.
char	getDelimiter(int index) Returns the configured delimiter for the reporter with the given index.
String	getMetricQueryServicePath() Returns the path of the MetricQueryService or null, if none is started.
int	getNumberReporters() Returns the number of registered reporters.
ScopeFormats	getScopeFormats() Returns the scope formats.
void	register(org.apache.flink.metrics.Metric metric, String metricName, AbstractMetricGroup group) Registers a new Metric with this registry.
void	unregister(org.apache.flink.metrics.Metric metric, String metricName, AbstractMetricGroup group) Un-registers the given Metric with this registry.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final MetricRegistry INSTANCE

Method Detail

getDelimiter

public char getDelimiter()

Description copied from interface: MetricRegistry

Returns the global delimiter.

Specified by:

getDelimiter in interface MetricRegistry

Returns:

global delimiter

getDelimiter

public char getDelimiter(int index)

Description copied from interface: MetricRegistry

Returns the configured delimiter for the reporter with the given index.

Specified by:

getDelimiter in interface MetricRegistry

Parameters:

index - index of the reporter whose delimiter should be used

Returns:

configured reporter delimiter, or global delimiter if index is invalid

getNumberReporters

public int getNumberReporters()

Description copied from interface: MetricRegistry

Returns the number of registered reporters.

Specified by:

getNumberReporters in interface MetricRegistry

register

public void register(org.apache.flink.metrics.Metric metric,
                     String metricName,
                     AbstractMetricGroup group)

Description copied from interface: MetricRegistry

Registers a new Metric with this registry.

Specified by:

register in interface MetricRegistry

Parameters:

metric - the metric that was added

metricName - the name of the metric

group - the group that contains the metric

unregister

public void unregister(org.apache.flink.metrics.Metric metric,
                       String metricName,
                       AbstractMetricGroup group)

Description copied from interface: MetricRegistry

Un-registers the given Metric with this registry.

Specified by:

unregister in interface MetricRegistry

Parameters:

metric - the metric that should be removed

metricName - the name of the metric

group - the group that contains the metric

getScopeFormats

public ScopeFormats getScopeFormats()

Description copied from interface: MetricRegistry

Returns the scope formats.

Specified by:

getScopeFormats in interface MetricRegistry

Returns:

scope formats

getMetricQueryServicePath

@Nullable
public String getMetricQueryServicePath()

Description copied from interface: MetricRegistry

Returns the path of the MetricQueryService or null, if none is started.

Specified by:

getMetricQueryServicePath in interface MetricRegistry

Returns:

Path of the MetricQueryService or null, if none is started