Package org.apache.hadoop.hbase.test

Class MetricsAssertHelperImpl

java.lang.Object

org.apache.hadoop.hbase.test.MetricsAssertHelperImpl

All Implemented Interfaces:

MetricsAssertHelper

public class MetricsAssertHelperImpl
extends Object
implements MetricsAssertHelper

A helper class that will allow tests to get into hadoop2's metrics2 values.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	MetricsAssertHelperImpl.MockMetricsBuilder
class	MetricsAssertHelperImpl.MockRecordBuilder

Field Summary

Fields

Modifier and Type	Field	Description
private Map<String,Long>	counters
private Map<String,Number>	gauges
private Map<String,String>	tags

Constructor Summary

Constructors

Constructor	Description
MetricsAssertHelperImpl()

Method Summary

Modifier and Type	Method	Description
void	assertCounter(String name, long expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a counter exists and that it's value is equal to the expected value.
void	assertCounterGt(String name, long expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a counter exists and that it's value is greater than the given value.
void	assertCounterLt(String name, long expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a counter exists and that it's value is less than the given value.
void	assertGauge(String name, double expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a gauge exists and that it's value is equal to the expected value.
void	assertGauge(String name, long expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a gauge exists and that it's value is equal to the expected value.
void	assertGaugeGt(String name, double expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a gauge exists and it's value is greater than a given value
void	assertGaugeGt(String name, long expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a gauge exists and it's value is greater than a given value
void	assertGaugeLt(String name, double expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a gauge exists and it's value is less than a given value
void	assertGaugeLt(String name, long expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a gauge exists and it's value is less than a given value
void	assertTag(String name, String expected, org.apache.hadoop.hbase.metrics.BaseSource source)	Assert that a tag exists and has a given value.
private String	canonicalizeMetricName(String in)
boolean	checkCounterExists(String name, org.apache.hadoop.hbase.metrics.BaseSource source)	Check if a dynamic counter exists.
boolean	checkGaugeExists(String name, org.apache.hadoop.hbase.metrics.BaseSource source)	Check if a gauge exists.
long	getCounter(String name, org.apache.hadoop.hbase.metrics.BaseSource source)	Get the value of a counter.
double	getGaugeDouble(String name, org.apache.hadoop.hbase.metrics.BaseSource source)	Get the value of a gauge as a double.
long	getGaugeLong(String name, org.apache.hadoop.hbase.metrics.BaseSource source)	Get the value of a gauge as a long.
private void	getMetrics(org.apache.hadoop.hbase.metrics.BaseSource source)
void	init()	Init helper.
private void	reset()
String	toDebugString(org.apache.hadoop.hbase.metrics.BaseSource source)	Generates a representation of all metrics exported by the given source.

Methods inherited from class java.lang.Object

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

Field Details

tags

private Map<String,String> tags

gauges

private Map<String,Number> gauges

counters

private Map<String,Long> counters

Constructor Details

MetricsAssertHelperImpl

public MetricsAssertHelperImpl()

Method Details

init

public void init()

Description copied from interface: MetricsAssertHelper

Init helper. This method will make sure that the metrics system is set up for tests.

Specified by:

init in interface MetricsAssertHelper

assertTag

public void assertTag(String name,
 String expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a tag exists and has a given value.

Specified by:

assertTag in interface MetricsAssertHelper

Parameters:

name - The name of the tag.

expected - The expected value

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertGauge

public void assertGauge(String name,
 long expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a gauge exists and that it's value is equal to the expected value.

Specified by:

assertGauge in interface MetricsAssertHelper

Parameters:

name - The name of the gauge

expected - The expected value of the gauge.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertGaugeGt

public void assertGaugeGt(String name,
 long expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a gauge exists and it's value is greater than a given value

Specified by:

assertGaugeGt in interface MetricsAssertHelper

Parameters:

name - The name of the gauge

expected - Value that the gauge is expected to be greater than

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertGaugeLt

public void assertGaugeLt(String name,
 long expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a gauge exists and it's value is less than a given value

Specified by:

assertGaugeLt in interface MetricsAssertHelper

Parameters:

name - The name of the gauge

expected - Value that the gauge is expected to be less than

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertGauge

public void assertGauge(String name,
 double expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a gauge exists and that it's value is equal to the expected value.

Specified by:

assertGauge in interface MetricsAssertHelper

Parameters:

name - The name of the gauge

expected - The expected value of the gauge.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertGaugeGt

public void assertGaugeGt(String name,
 double expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a gauge exists and it's value is greater than a given value

Specified by:

assertGaugeGt in interface MetricsAssertHelper

Parameters:

name - The name of the gauge

expected - Value that the gauge is expected to be greater than

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertGaugeLt

public void assertGaugeLt(String name,
 double expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a gauge exists and it's value is less than a given value

Specified by:

assertGaugeLt in interface MetricsAssertHelper

Parameters:

name - The name of the gauge

expected - Value that the gauge is expected to be less than

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertCounter

public void assertCounter(String name,
 long expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a counter exists and that it's value is equal to the expected value.

Specified by:

assertCounter in interface MetricsAssertHelper

Parameters:

name - The name of the counter.

expected - The expected value

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertCounterGt

public void assertCounterGt(String name,
 long expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a counter exists and that it's value is greater than the given value.

Specified by:

assertCounterGt in interface MetricsAssertHelper

Parameters:

name - The name of the counter.

expected - The value the counter is expected to be greater than.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

assertCounterLt

public void assertCounterLt(String name,
 long expected,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Assert that a counter exists and that it's value is less than the given value.

Specified by:

assertCounterLt in interface MetricsAssertHelper

Parameters:

name - The name of the counter.

expected - The value the counter is expected to be less than.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

getCounter

public long getCounter(String name,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Get the value of a counter.

Specified by:

getCounter in interface MetricsAssertHelper

Parameters:

name - name of the counter.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

Returns:

long value of the counter.

checkCounterExists

public boolean checkCounterExists(String name,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Check if a dynamic counter exists.

Specified by:

checkCounterExists in interface MetricsAssertHelper

Parameters:

name - name of the counter.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

Returns:

boolean true if counter metric exists.

checkGaugeExists

public boolean checkGaugeExists(String name,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Check if a gauge exists.

Specified by:

checkGaugeExists in interface MetricsAssertHelper

Parameters:

name - name of the gauge.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

Returns:

boolean true if gauge metric exists.

getGaugeDouble

public double getGaugeDouble(String name,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Get the value of a gauge as a double.

Specified by:

getGaugeDouble in interface MetricsAssertHelper

Parameters:

name - name of the gauge.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

Returns:

double value of the gauge.

getGaugeLong

public long getGaugeLong(String name,
 org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Get the value of a gauge as a long.

Specified by:

getGaugeLong in interface MetricsAssertHelper

Parameters:

name - name of the gauge.

source - The BaseSourceBaseSource that will provide the tags, gauges, and counters.

Returns:

long value of the gauge.

toDebugString

public String toDebugString(org.apache.hadoop.hbase.metrics.BaseSource source)

Description copied from interface: MetricsAssertHelper

Generates a representation of all metrics exported by the given source.

Specified by:

toDebugString in interface MetricsAssertHelper

Parameters:

source - The BaseSource that will provide the metrics.

Returns:

A representation of the metrics as a String.

reset

private void reset()

getMetrics

private void getMetrics(org.apache.hadoop.hbase.metrics.BaseSource source)

canonicalizeMetricName

private String canonicalizeMetricName(String in)