com.github.johrstrom.listener.updater

Class AbstractUpdater

java.lang.Object

com.github.johrstrom.listener.updater.AbstractUpdater

Direct Known Subclasses:

AggregatedTypeUpdater, CountTypeUpdater

public abstract class AbstractUpdater
extends Object

The Updater family of classes are meant to update the actual Collectors given the configuration. The main problem it tries to solve is tying a Prometheus Collector (with a type like 'Historgram', labels, etc.) to the JMeter data that collector is measuring. Note: This class assumes that the Collector object passed into the constructor is valid. I.e., it is not null and registered. Of course, being null has much more serious consequences.

Author:

Jeff Ohrstrom

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractUpdater.AssertionContext

Field Summary

Fields

Modifier and Type	Field and Description
protected ListenerCollectorConfig	config
static String	NULL
protected static JMeterCollectorRegistry	registry

Constructor Summary

Constructors

Constructor and Description
AbstractUpdater(ListenerCollectorConfig cfg) All subclasses should have this and only this constructor signature.

Method Summary

Modifier and Type	Method and Description
protected String[]	labelValues(AbstractUpdater.AssertionContext ctx)
protected String[]	labelValues(org.apache.jmeter.samplers.SampleEvent event) Helper function to extract the label values from the Sample Event.
abstract void	update(org.apache.jmeter.samplers.SampleEvent e) Updates the collector it was instantiated with with the given event e.

Methods inherited from class java.lang.Object

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

Field Detail

NULL

public static String NULL

config

protected ListenerCollectorConfig config

registry

protected static final JMeterCollectorRegistry registry

Constructor Detail

AbstractUpdater

public AbstractUpdater(ListenerCollectorConfig cfg)

All subclasses should have this and only this constructor signature.

Parameters:

cfg - the configuration of the collector

Method Detail

update

public abstract void update(org.apache.jmeter.samplers.SampleEvent e)

Updates the collector it was instantiated with with the given event e.

Parameters:

e -

labelValues

protected String[] labelValues(org.apache.jmeter.samplers.SampleEvent event)

Helper function to extract the label values from the Sample Event. Values depend on how the Updater was configured.

Parameters:

event -

Returns:

the label values.

labelValues

protected String[] labelValues(AbstractUpdater.AssertionContext ctx)