org.jclouds.compute.predicates.internal
Class RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid

java.lang.Object
  org.jclouds.compute.predicates.internal.RefreshAndDoubleCheckOnFailUnlessStatusInvalid<NodeMetadata.Status,NodeMetadata>
      org.jclouds.compute.predicates.internal.RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid

All Implemented Interfaces:

com.google.common.base.Predicate<AtomicReference<NodeMetadata>>

Direct Known Subclasses:

AtomicNodeRunning, AtomicNodeSuspended

@Singleton
public class RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid
extends RefreshAndDoubleCheckOnFailUnlessStatusInvalid<NodeMetadata.Status,NodeMetadata>

The point of RefreshAndDoubleCheckOnFailUnlessStateInvalid is to keep an atomic reference to a node, so as to eliminate a redundant ComputeService#getNodeMetadata call after the predicate passes.

Field Summary

Fields inherited from class org.jclouds.compute.predicates.internal.RefreshAndDoubleCheckOnFailUnlessStatusInvalid

logger

Constructor Summary

RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid(NodeMetadata.Status intended, GetNodeMetadataStrategy client)

RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid(NodeMetadata.Status intended, Set<NodeMetadata.Status> invalids, GetNodeMetadataStrategy client)

Method Summary

protected NodeMetadata

refreshOrNull(NodeMetadata resource)

Methods inherited from class org.jclouds.compute.predicates.internal.RefreshAndDoubleCheckOnFailUnlessStatusInvalid

apply, checkStatus

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Predicate

equals

Constructor Detail

RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid

@Inject
public RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid(NodeMetadata.Status intended,
                                                                 GetNodeMetadataStrategy client)

RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid

public RefreshNodeAndDoubleCheckOnFailUnlessStatusInvalid(NodeMetadata.Status intended,
                                                          Set<NodeMetadata.Status> invalids,
                                                          GetNodeMetadataStrategy client)

Method Detail

refreshOrNull

protected NodeMetadata refreshOrNull(NodeMetadata resource)

Specified by:

refreshOrNull in class RefreshAndDoubleCheckOnFailUnlessStatusInvalid<NodeMetadata.Status,NodeMetadata>