org.apache.ambari.server.alerts

Class AlertRunnable

java.lang.Object

org.apache.ambari.server.alerts.AlertRunnable

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

AgentHeartbeatAlertRunnable, AmbariPerformanceRunnable, ComponentVersionAlertRunnable, JmxServerSideAlert, StaleAlertRunnable

public abstract class AlertRunnable
extends Object
implements Runnable

The AlertRunnable class is used to boilerplate the expected functionality of Runnables which need to eventually create and fire AlertReceivedEvents.

Implementations of this class do not need to concern themselves with checking for whether their alert definition is enabled or with constructing and firing the alert events.

Field Summary

Fields

Modifier and Type	Field and Description
protected AlertHelper	alertHelper
protected String	m_definitionName The alert definition name.

Constructor Summary

Constructors

Constructor and Description
AlertRunnable(String definitionName) Constructor.

Method Summary

Modifier and Type	Method and Description
protected Alert	buildAlert(Cluster cluster, AlertDefinitionEntity myDefinition, AlertState alertState, String message) Builds an Alert instance.
void	run()

Methods inherited from class java.lang.Object

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

Field Detail

m_definitionName

protected final String m_definitionName

The alert definition name.

alertHelper

@Inject
protected AlertHelper alertHelper

Constructor Detail

AlertRunnable

public AlertRunnable(String definitionName)

Constructor.

Parameters:

definitionName - the definition name (not null).

Method Detail

run

public final void run()

Specified by:

run in interface Runnable

buildAlert

protected Alert buildAlert(Cluster cluster,
                           AlertDefinitionEntity myDefinition,
                           AlertState alertState,
                           String message)

Builds an Alert instance.

Parameters:

cluster - the cluster the alert is for (not null).

myDefinition - the alert's definition (not null).

alertState - the state of the alert (not null).

message - the alert text.

Returns:

and alert.