Package org.jdrupes.vmoperator.manager

Class PodMonitor

java.lang.Object

org.jgrapes.core.internal.ComponentVertex

org.jgrapes.core.Component

org.jdrupes.vmoperator.manager.AbstractMonitor<io.kubernetes.client.openapi.models.V1Pod,io.kubernetes.client.openapi.models.V1PodList,VmChannel>

org.jdrupes.vmoperator.manager.PodMonitor

All Implemented Interfaces:

Iterable<ComponentType>, Channel, ComponentType, Eligible, Manager

public class PodMonitor
extends AbstractMonitor<io.kubernetes.client.openapi.models.V1Pod,io.kubernetes.client.openapi.models.V1PodList,VmChannel>

Watches for changes of pods that run VMs.

Nested Class Summary

Nested classes/interfaces inherited from interface org.jgrapes.core.Channel

Channel.Default

Field Summary

Fields inherited from class org.jgrapes.core.Component

logger

Fields inherited from interface org.jgrapes.core.Channel

BROADCAST, SELF

Constructor Summary

Constructors

Constructor	Description
PodMonitor(Channel componentChannel, ChannelDictionary<String,VmChannel,?> channelDictionary)	Instantiates a new pod monitor.

Method Summary

Modifier and Type	Method	Description
protected void	handleChange(K8sClient client, io.kubernetes.client.util.Watch.Response<io.kubernetes.client.openapi.models.V1Pod> change)	Handle an observed change.
void	onVmResourceChanged(VmResourceChanged event, VmChannel channel)	Check for pending changes.
protected void	prepareMonitoring()	Invoked by AbstractMonitor.onStart(Start) after the namespace has been configured and before starting the observer.

Methods inherited from class org.jdrupes.vmoperator.manager.AbstractMonitor

client, client, context, context, namespace, namespace, onConfigurationUpdate, onStart, options, options

Methods inherited from class org.jgrapes.core.Component

channel, component, defaultCriterion, isEligibleFor, setName

Methods inherited from class org.jgrapes.core.internal.ComponentVertex

activeEventPipeline, addHandler, attach, channelReplacements, children, componentPath, componentVertex, detach, fire, initComponentsHandlers, iterator, name, newEventPipeline, newEventPipeline, parent, registerAsGenerator, root, toString, unregisterAsGenerator

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.jgrapes.core.Manager

stream

Constructor Details

PodMonitor

public PodMonitor(Channel componentChannel,
 ChannelDictionary<String,VmChannel,?> channelDictionary)

Instantiates a new pod monitor.

Parameters:

componentChannel - the component channel

channelDictionary - the channel dictionary

Method Details

prepareMonitoring

protected void prepareMonitoring()
                          throws IOException,
io.kubernetes.client.openapi.ApiException

Description copied from class: AbstractMonitor

Invoked by AbstractMonitor.onStart(Start) after the namespace has been configured and before starting the observer.

This is the last opportunity to invoke AbstractMonitor.context(APIResource).

Overrides:

prepareMonitoring in class AbstractMonitor<io.kubernetes.client.openapi.models.V1Pod,io.kubernetes.client.openapi.models.V1PodList,VmChannel>

Throws:

IOException - Signals that an I/O exception has occurred.

io.kubernetes.client.openapi.ApiException - the api exception

handleChange

protected void handleChange(K8sClient client,
 io.kubernetes.client.util.Watch.Response<io.kubernetes.client.openapi.models.V1Pod> change)

Description copied from class: AbstractMonitor

Handle an observed change.

The method is invoked by the observer thread(s). It is the responsibility of the implementing class to fire derived events on the appropriate event pipeline.

Specified by:

handleChange in class AbstractMonitor<io.kubernetes.client.openapi.models.V1Pod,io.kubernetes.client.openapi.models.V1PodList,VmChannel>

Parameters:

client - the client

change - the change

onVmResourceChanged

@Handler
public void onVmResourceChanged(VmResourceChanged event,
 VmChannel channel)

Check for pending changes.

Parameters:

event - the event

channel - the channel