Package org.jenkinsci.plugins.workflow.graph

Class StandardGraphLookupView

java.lang.Object

org.jenkinsci.plugins.workflow.graph.StandardGraphLookupView

All Implemented Interfaces:

ExtensionPoint, GraphListener, GraphListener.Synchronous, GraphLookupView

@Restricted(org.kohsuke.accmod.restrictions.NoExternalUse.class)
public final class StandardGraphLookupView
extends Object
implements GraphLookupView, GraphListener, GraphListener.Synchronous

Provides overall insight into the structure of a flow graph... but with limited visibility so we can change implementation. Designed to work entirely on the basis of the FlowNode.getId() rather than the FlowNodes themselves.

Nested Class Summary

Nested classes/interfaces inherited from interface hudson.ExtensionPoint

ExtensionPoint.LegacyInstancesAreScopedToHudson

Nested classes/interfaces inherited from interface org.jenkinsci.plugins.workflow.flow.GraphListener

GraphListener.Synchronous

Nested classes/interfaces inherited from interface org.jenkinsci.plugins.workflow.graph.GraphLookupView

GraphLookupView.EnclosingBlocksIterable

Constructor Summary

Constructors

Constructor	Description
StandardGraphLookupView()	Create a lookup view for an execution

Method Summary

Modifier and Type	Method	Description
void	clearCache()
List<BlockStartNode>	findAllEnclosingBlockStarts(FlowNode node)	Return all enclosing block start nodes, as with GraphLookupView.findEnclosingBlockStart(FlowNode).
BlockStartNode	findEnclosingBlockStart(FlowNode node)	Find the immediately enclosing BlockStartNode around a FlowNode
BlockEndNode	getEndNode(BlockStartNode startNode)	Find the end node corresponding to a start node, and can be used to tell if the block is completed.
boolean	isActive(FlowNode node)	Tests if the node is a currently running head, or the start of a block that has not completed executing
Iterable<BlockStartNode>	iterateEnclosingBlocks(FlowNode node)	Provide an Iterable over all enclosing blocks, which can be used similarly to GraphLookupView.findAllEnclosingBlockStarts(FlowNode) but does lazy fetches rather than materializing a full result.
void	onNewHead(FlowNode newHead)	Update with a new node added to the flowgraph

Methods inherited from class java.lang.Object

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

Constructor Details

StandardGraphLookupView

public StandardGraphLookupView()

Create a lookup view for an execution

Method Details

clearCache

public void clearCache()

onNewHead

public void onNewHead(@NonNull
 FlowNode newHead)

Update with a new node added to the flowgraph

Specified by:

onNewHead in interface GraphListener

isActive

public boolean isActive(@NonNull
 FlowNode node)

Description copied from interface: GraphLookupView

Tests if the node is a currently running head, or the start of a block that has not completed executing

Specified by:

isActive in interface GraphLookupView

getEndNode

@CheckForNull
public BlockEndNode getEndNode(@NonNull
 BlockStartNode startNode)

Description copied from interface: GraphLookupView

Find the end node corresponding to a start node, and can be used to tell if the block is completed.

Specified by:

getEndNode in interface GraphLookupView

Returns:

BlockEndNode matching the given start node, or null if block hasn't completed

findEnclosingBlockStart

@CheckForNull
public BlockStartNode findEnclosingBlockStart(@NonNull
 FlowNode node)

Description copied from interface: GraphLookupView

Find the immediately enclosing BlockStartNode around a FlowNode

Specified by:

findEnclosingBlockStart in interface GraphLookupView

Parameters:

node - Node to find block enclosing it - note that it this is a BlockStartNode, you will return the start of the block enclosing this one.

Returns:

Null if node is a FlowStartNode or FlowEndNode

iterateEnclosingBlocks

public Iterable<BlockStartNode> iterateEnclosingBlocks(@NonNull
 FlowNode node)

Description copied from interface: GraphLookupView

Provide an Iterable over all enclosing blocks, which can be used similarly to GraphLookupView.findAllEnclosingBlockStarts(FlowNode) but does lazy fetches rather than materializing a full result. Handy for for-each loops.

Usage note:Prefer this to GraphLookupView.findAllEnclosingBlockStarts(FlowNode) in most cases since it can evaluate lazily, unless you know you need all enclosing blocks.

Specified by:

iterateEnclosingBlocks in interface GraphLookupView

Parameters:

node - Node to find enclosing blocks for

Returns:

Iterable over enclosing blocks, from the nearest-enclosing outward ("inside-out" order)

findAllEnclosingBlockStarts

@NonNull
public List<BlockStartNode> findAllEnclosingBlockStarts(@NonNull
 FlowNode node)

Description copied from interface: GraphLookupView

Return all enclosing block start nodes, as with GraphLookupView.findEnclosingBlockStart(FlowNode).

Usage note:Prefer using GraphLookupView.iterateEnclosingBlocks(FlowNode) unless you know you need ALL blocks, since that can lazy-load.

Specified by:

findAllEnclosingBlockStarts in interface GraphLookupView

Parameters:

node - Node to find enclosing blocks for

Returns:

All enclosing block starts from the nearest-enclosing outward ("inside-out" order), or EMPTY_LIST if this is a start or end node