org.apache.bookkeeper.stats.codahale

Class CodahaleMetricsProvider

java.lang.Object

org.apache.bookkeeper.stats.codahale.CodahaleMetricsProvider

All Implemented Interfaces:

StatsProvider

Direct Known Subclasses:

FastCodahaleMetricsProvider

public class CodahaleMetricsProvider
extends java.lang.Object
implements StatsProvider

A StatsProvider implemented based on Codahale metrics library.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) com.codahale.metrics.JmxReporter	jmx
(package private) static org.slf4j.Logger	LOG
(package private) com.codahale.metrics.MetricRegistry	metrics
(package private) java.util.List<com.codahale.metrics.ScheduledReporter>	reporters

Constructor Summary

Constructors

Constructor and Description
CodahaleMetricsProvider()

Method Summary

Modifier and Type	Method and Description
com.codahale.metrics.MetricRegistry	getMetrics()
StatsLogger	getStatsLogger(java.lang.String name) Return the stats logger to a given scope.
java.lang.String	getStatsName(java.lang.String... statsComponents) Return the fully qualified stats name comprised of given statsComponents.
(package private) void	initIfNecessary()
void	start(org.apache.commons.configuration.Configuration conf) Intialize the stats provider by loading the given configuration conf.
void	stop() Close the stats provider.

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.StatsProvider

writeAllMetrics

Field Detail

LOG

static final org.slf4j.Logger LOG

metrics

com.codahale.metrics.MetricRegistry metrics

reporters

java.util.List<com.codahale.metrics.ScheduledReporter> reporters

jmx

com.codahale.metrics.JmxReporter jmx

Constructor Detail

CodahaleMetricsProvider

public CodahaleMetricsProvider()

Method Detail

initIfNecessary

void initIfNecessary()

getMetrics

public com.codahale.metrics.MetricRegistry getMetrics()

start

public void start(org.apache.commons.configuration.Configuration conf)

Description copied from interface: StatsProvider

Intialize the stats provider by loading the given configuration conf.

Specified by:

start in interface StatsProvider

Parameters:

conf - Configuration to configure the stats provider.

stop

public void stop()

Description copied from interface: StatsProvider

Close the stats provider.

Specified by:

stop in interface StatsProvider

getStatsLogger

public StatsLogger getStatsLogger(java.lang.String name)

Description copied from interface: StatsProvider

Return the stats logger to a given scope.

Specified by:

getStatsLogger in interface StatsProvider

Parameters:

name - Scope for the given stats

Returns:

stats logger for the given scope

getStatsName

public java.lang.String getStatsName(java.lang.String... statsComponents)

Description copied from interface: StatsProvider

Return the fully qualified stats name comprised of given statsComponents.

Specified by:

getStatsName in interface StatsProvider

Parameters:

statsComponents - stats components to comprise the fully qualified stats name

Returns:

the fully qualified stats name