hudson.slaves

Class CloudProvisioningListener

java.lang.Object

hudson.slaves.CloudProvisioningListener

All Implemented Interfaces:

ExtensionPoint

public abstract class CloudProvisioningListener
extends Object
implements ExtensionPoint

Allows extensions to be notified of events in any Cloud and to prevent provisioning from a Cloud.

Since:

1.520

Author:

Ryan Campbell

Nested Class Summary

Nested classes/interfaces inherited from interface hudson.ExtensionPoint

ExtensionPoint.LegacyInstancesAreScopedToHudson

Constructor Summary

Constructors

Constructor and Description
CloudProvisioningListener()

Method Summary

Modifier and Type	Method and Description
static ExtensionList<CloudProvisioningListener>	all() All the registered CloudProvisioningListeners.
CauseOfBlockage	canProvision(Cloud cloud, Label label, int numExecutors) Allows extensions to prevent a cloud from provisioning.
void	onComplete(NodeProvisioner.PlannedNode plannedNode, Node node) Called when the NodeProvisioner.PlannedNode.future completes.
void	onFailure(NodeProvisioner.PlannedNode plannedNode, Throwable t) Called when NodeProvisioner.PlannedNode#future#get() throws an exception.
void	onStarted(Cloud cloud, Label label, Collection<NodeProvisioner.PlannedNode> plannedNodes) Called after a cloud has returned a PlannedNode, but before that node is necessarily ready for connection.

Methods inherited from class java.lang.Object

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

Constructor Detail

CloudProvisioningListener

public CloudProvisioningListener()

Method Detail

canProvision

public CauseOfBlockage canProvision(Cloud cloud,
                                    Label label,
                                    int numExecutors)

Allows extensions to prevent a cloud from provisioning. Return null to allow provisioning, or non-null to prevent it.

Parameters:

cloud - The cloud being provisioned from.

label - The label which requires additional capacity. IE, the NodeProvisioner.label. May be null if provisioning for unlabeled builds.

numExecutors - The number of executors needed.

Returns:

null if provisioning can proceed, or a CauseOfBlockage reason why it cannot be provisioned.

onStarted

public void onStarted(Cloud cloud,
                      Label label,
                      Collection<NodeProvisioner.PlannedNode> plannedNodes)

Called after a cloud has returned a PlannedNode, but before that node is necessarily ready for connection.

Parameters:

cloud - the cloud doing the provisioning

label - the label which requires additional capacity. IE, the NodeProvisioner.label May be null if provisioning for unlabeled builds.

plannedNodes - the planned nodes

onComplete

public void onComplete(NodeProvisioner.PlannedNode plannedNode,
                       Node node)

Called when the NodeProvisioner.PlannedNode.future completes.

Parameters:

plannedNode - the plannedNode which resulted in the node being provisioned

node - the node which has been provisioned by the cloud

onFailure

public void onFailure(NodeProvisioner.PlannedNode plannedNode,
                      Throwable t)

Called when NodeProvisioner.PlannedNode#future#get() throws an exception.

Parameters:

plannedNode - the planned node which failed to launch

t - the exception

all

public static ExtensionList<CloudProvisioningListener> all()

All the registered CloudProvisioningListeners.