org.apache.hadoop.hbase.test

Interface MetricsAssertHelper

All Known Implementing Classes:

MetricsAssertHelperImpl

public interface MetricsAssertHelper

Interface of a class to make assertions about metrics values.

Method Summary

Modifier and Type	Method and 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.
boolean	checkCounterExists(String name, org.apache.hadoop.hbase.metrics.BaseSource source) Check if a dynamic counter 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.
void	init() Init helper.
String	toDebugString(org.apache.hadoop.hbase.metrics.BaseSource source) Generates a representation of all metrics exported by the given source.

Method Detail

init

void init()

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

assertTag

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

Assert that a tag exists and has a given value.

Parameters:

name - The name of the tag.

expected - The expected value

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

assertGauge

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.

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

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

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

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

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

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.

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

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

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

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

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

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.

Parameters:

name - The name of the counter.

expected - The expected value

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

assertCounterGt

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.

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

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.

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

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

Get the value of a counter.

Parameters:

name - name of the counter.

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

Returns:

long value of the counter.

checkCounterExists

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

Check if a dynamic counter exists.

Parameters:

name - name of the counter.

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

Returns:

boolean true id counter metric exists.

getGaugeDouble

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

Get the value of a gauge as a double.

Parameters:

name - name of the gauge.

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

Returns:

double value of the gauge.

getGaugeLong

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

Get the value of a gauge as a long.

Parameters:

name - name of the gauge.

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

Returns:

long value of the gauge.

toDebugString

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

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

Parameters:

source - The BaseSource that will provide the metrics.

Returns:

A representation of the metrics as a String.