org.apache.solr.metrics

Class SolrMetricReporter

java.lang.Object

org.apache.solr.metrics.SolrMetricReporter

All Implemented Interfaces:

Closeable, AutoCloseable, PluginInfoInitialized

Direct Known Subclasses:

FilteringSolrMetricReporter, SolrCoreContainerReporter

public abstract class SolrMetricReporter
extends Object
implements Closeable, PluginInfoInitialized

Interface for 'pluggable' metric reporters.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	enabled
protected SolrMetricManager	metricManager
protected int	period
protected PluginInfo	pluginInfo
protected String	registryName

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SolrMetricReporter(SolrMetricManager metricManager, String registryName) Create a reporter for metrics managed in a named registry.

Method Summary

Modifier and Type	Method and Description
protected abstract void	doInit() Reporter initialization implementation.
int	getPeriod()
PluginInfo	getPluginInfo() Get the effective PluginInfo instance that was used for initialization of this plugin.
void	init(PluginInfo pluginInfo) Initializes a SolrMetricReporter with the plugin's configuration.
void	setEnabled(Boolean enabled) Enable reporting, defaults to true.
void	setPeriod(int period)
String	toString()
protected abstract void	validate() Validates that the reporter has been correctly configured.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Field Detail

registryName

protected final String registryName

metricManager

protected final SolrMetricManager metricManager

pluginInfo

protected PluginInfo pluginInfo

enabled

protected boolean enabled

period

protected int period

Constructor Detail

SolrMetricReporter

protected SolrMetricReporter(SolrMetricManager metricManager,
                             String registryName)

Create a reporter for metrics managed in a named registry.

Parameters:

registryName - registry to use, one of registries managed by SolrMetricManager

Method Detail

init

public void init(PluginInfo pluginInfo)

Initializes a SolrMetricReporter with the plugin's configuration.

Specified by:

init in interface PluginInfoInitialized

Parameters:

pluginInfo - the plugin's configuration

doInit

protected abstract void doInit()

Reporter initialization implementation.

setEnabled

public void setEnabled(Boolean enabled)

Enable reporting, defaults to true. init(PluginInfo) checks this flag before calling doInit() to initialize reporting.

Parameters:

enabled - - whether or not reporting is to be enabled

setPeriod

public void setPeriod(int period)

Parameters:

period - - in seconds

getPeriod

public int getPeriod()

Returns:

period, in seconds

getPluginInfo

public PluginInfo getPluginInfo()

Get the effective PluginInfo instance that was used for initialization of this plugin.

Returns:

plugin info, or null if not yet initialized.

validate

protected abstract void validate()
                          throws IllegalStateException

Validates that the reporter has been correctly configured.

Throws:

IllegalStateException - if the reporter is not properly configured

toString

public String toString()

Overrides:

toString in class Object