org.apache.hadoop.hbase.metrics
Class BaseSourceImpl

java.lang.Object
  org.apache.hadoop.hbase.metrics.BaseSourceImpl

All Implemented Interfaces:

BaseSource, MetricsSource

Direct Known Subclasses:

MetricsAssignmentManagerSourceImpl, MetricsBalancerSourceImpl, MetricsEditsReplaySourceImpl, MetricsHBaseServerSourceImpl, MetricsMasterFilesystemSourceImpl, MetricsMasterSourceImpl, MetricsRegionAggregateSourceImpl, MetricsRegionServerSourceImpl, MetricsReplicationSourceImpl, MetricsRESTSourceImpl, MetricsSnapshotSourceImpl, MetricsThriftServerSourceImpl, MetricsWALSourceImpl

@InterfaceAudience.Private
public class BaseSourceImpl
extends Object
implements BaseSource, MetricsSource

Hadoop 2 implementation of BaseSource (using metrics2 framework). It handles registration to DefaultMetricsSystem and creation of the metrics registry. All MetricsSource's in hbase-hadoop2-compat should derive from this class.

Field Summary

protected String	metricsContext
protected String	metricsDescription
protected String	metricsJmxContext
protected String	metricsName
protected DynamicMetricsRegistry	metricsRegistry

Fields inherited from interface org.apache.hadoop.hbase.metrics.BaseSource

HBASE_METRICS_SYSTEM_NAME

Constructor Summary

BaseSourceImpl(String metricsName, String metricsDescription, String metricsContext, String metricsJmxContext)

Method Summary

void	decGauge(String gaugeName, long delta) Decrease the value of a named gauge.
void	getMetrics(MetricsCollector metricsCollector, boolean all)
String	getMetricsContext()
String	getMetricsDescription()
String	getMetricsJmxContext()
String	getMetricsName()
DynamicMetricsRegistry	getMetricsRegistry()
void	incCounters(String key, long delta) Increment a named counter by some value.
void	incGauge(String gaugeName, long delta) Add some amount to a gauge.
void	init()
void	removeMetric(String key) Remove a named gauge.
void	setGauge(String gaugeName, long value) Set a single gauge to a value.
void	updateHistogram(String name, long value)
void	updateQuantile(String name, long value)

Methods inherited from class java.lang.Object

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

Field Detail

metricsRegistry

protected final DynamicMetricsRegistry metricsRegistry

metricsName

protected final String metricsName

metricsDescription

protected final String metricsDescription

metricsContext

protected final String metricsContext

metricsJmxContext

protected final String metricsJmxContext

Constructor Detail

BaseSourceImpl

public BaseSourceImpl(String metricsName,
                      String metricsDescription,
                      String metricsContext,
                      String metricsJmxContext)

Method Detail

init

public void init()

Specified by:

init in interface BaseSource

setGauge

public void setGauge(String gaugeName,
                     long value)

Set a single gauge to a value.

Specified by:

setGauge in interface BaseSource

Parameters:

gaugeName - gauge name

value - the new value of the gauge.

incGauge

public void incGauge(String gaugeName,
                     long delta)

Add some amount to a gauge.

Specified by:

incGauge in interface BaseSource

Parameters:

gaugeName - The name of the gauge to increment.

delta - The amount to increment the gauge by.

decGauge

public void decGauge(String gaugeName,
                     long delta)

Decrease the value of a named gauge.

Specified by:

decGauge in interface BaseSource

Parameters:

gaugeName - The name of the gauge.

delta - the ammount to subtract from a gauge value.

incCounters

public void incCounters(String key,
                        long delta)

Increment a named counter by some value.

Specified by:

incCounters in interface BaseSource

Parameters:

key - the name of the counter

delta - the ammount to increment

updateHistogram

public void updateHistogram(String name,
                            long value)

Specified by:

updateHistogram in interface BaseSource

updateQuantile

public void updateQuantile(String name,
                           long value)

Specified by:

updateQuantile in interface BaseSource

removeMetric

public void removeMetric(String key)

Remove a named gauge.

Specified by:

removeMetric in interface BaseSource

Parameters:

key -

getMetrics

public void getMetrics(MetricsCollector metricsCollector,
                       boolean all)

Specified by:

getMetrics in interface MetricsSource

getMetricsRegistry

public DynamicMetricsRegistry getMetricsRegistry()

getMetricsContext

public String getMetricsContext()

Specified by:

getMetricsContext in interface BaseSource

getMetricsDescription

public String getMetricsDescription()

Specified by:

getMetricsDescription in interface BaseSource

getMetricsJmxContext

public String getMetricsJmxContext()

Specified by:

getMetricsJmxContext in interface BaseSource

getMetricsName

public String getMetricsName()

Specified by:

getMetricsName in interface BaseSource