Package org.apache.bookkeeper.stats.codahale

Class CodahaleStatsLogger

java.lang.Object

org.apache.bookkeeper.stats.codahale.CodahaleStatsLogger

All Implemented Interfaces:

StatsLogger

Direct Known Subclasses:

FastCodahaleStatsLogger

public class CodahaleStatsLogger
extends java.lang.Object
implements StatsLogger

A StatsLogger implemented based on Codahale metrics library.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.String	basename
(package private) com.codahale.metrics.MetricRegistry	metrics

Constructor Summary

Constructors

Constructor	Description
CodahaleStatsLogger(com.codahale.metrics.MetricRegistry metrics, java.lang.String basename)

Method Summary

Modifier and Type	Method	Description
Counter	getCounter(java.lang.String statName)
OpStatsLogger	getOpStatsLogger(java.lang.String statName)
Counter	getThreadScopedCounter(java.lang.String name)	Thread-scoped stats not currently supported.
OpStatsLogger	getThreadScopedOpStatsLogger(java.lang.String name)	Thread-scoped stats not currently supported.
<T extends java.lang.Number> void	registerGauge(java.lang.String statName, Gauge<T> gauge)	Register given gauge as name name.
void	removeScope(java.lang.String name, StatsLogger statsLogger)	Remove the given statsLogger for scope name.
StatsLogger	scope(java.lang.String scope)	Provide the stats logger under scope name.
<T extends java.lang.Number> void	unregisterGauge(java.lang.String statName, Gauge<T> gauge)	Unregister given gauge from name name.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.bookkeeper.stats.StatsLogger

scopeLabel

Field Detail

basename

protected final java.lang.String basename

metrics

final com.codahale.metrics.MetricRegistry metrics

Constructor Detail

CodahaleStatsLogger

CodahaleStatsLogger(com.codahale.metrics.MetricRegistry metrics,
                    java.lang.String basename)

Method Detail

getOpStatsLogger

public OpStatsLogger getOpStatsLogger(java.lang.String statName)

Specified by:

getOpStatsLogger in interface StatsLogger

Parameters:

statName - Stats Name

Returns:

Get the logger for an OpStat described by the name.

getCounter

public Counter getCounter(java.lang.String statName)

Specified by:

getCounter in interface StatsLogger

Parameters:

statName - Stats Name

Returns:

Get the logger for a simple stat described by the name

registerGauge

public <T extends java.lang.Number> void registerGauge(java.lang.String statName,
                                                       Gauge<T> gauge)

Description copied from interface: StatsLogger

Register given gauge as name name.

Specified by:

registerGauge in interface StatsLogger

Parameters:

statName - gauge name

gauge - gauge function

unregisterGauge

public <T extends java.lang.Number> void unregisterGauge(java.lang.String statName,
                                                         Gauge<T> gauge)

Description copied from interface: StatsLogger

Unregister given gauge from name name.

Specified by:

unregisterGauge in interface StatsLogger

Parameters:

statName - name of the gauge

gauge - gauge function

scope

public StatsLogger scope(java.lang.String scope)

Description copied from interface: StatsLogger

Provide the stats logger under scope name.

Specified by:

scope in interface StatsLogger

Parameters:

scope - scope name.

Returns:

stats logger under scope name.

removeScope

public void removeScope(java.lang.String name,
                        StatsLogger statsLogger)

Description copied from interface: StatsLogger

Remove the given statsLogger for scope name. It can be no-op if the underlying stats provider doesn't have the ability to remove scope.

Specified by:

removeScope in interface StatsLogger

Parameters:

name - name of the scope

statsLogger - the stats logger of this scope.

getThreadScopedOpStatsLogger

public OpStatsLogger getThreadScopedOpStatsLogger(java.lang.String name)

Thread-scoped stats not currently supported.

Specified by:

getThreadScopedOpStatsLogger in interface StatsLogger

Parameters:

name - Stats Name

Returns:

Get the logger for an OpStat described by the name with extra labels for the threadpool/threadname and thread no. Lone threads always have 0 as their thread no.

getThreadScopedCounter

public Counter getThreadScopedCounter(java.lang.String name)

Thread-scoped stats not currently supported.

Specified by:

getThreadScopedCounter in interface StatsLogger

Parameters:

name - Stats Name

Returns:

Get the logger for a simple stat described by the name with extra labels for the threadpool/threadname and thread no. Lone threads always have 0 as their thread no.