org.apache.maven.repository.metadata

Class DefaultGraphConflictResolver

java.lang.Object

org.apache.maven.repository.metadata.DefaultGraphConflictResolver

All Implemented Interfaces:

GraphConflictResolver

@Component(role=GraphConflictResolver.class)
public class DefaultGraphConflictResolver
extends java.lang.Object
implements GraphConflictResolver

Default conflict resolver.Implements closer newer first policy by default, but could be configured via plexus

Field Summary

Fields

Modifier and Type	Field and Description
protected GraphConflictResolutionPolicy	policy artifact, closer to the entry point, is selected

Fields inherited from interface org.apache.maven.repository.metadata.GraphConflictResolver

ROLE

Constructor Summary

Constructors

Constructor and Description
DefaultGraphConflictResolver()

Method Summary

Modifier and Type	Method and Description
private MetadataGraphEdge	cleanEdges(MetadataGraphVertex v, java.util.List<MetadataGraphEdge> edges, ArtifactScopeEnum scope)
private MetadataGraph	findLinkedSubgraph(MetadataGraph g)
MetadataGraph	resolveConflicts(MetadataGraph graph, ArtifactScopeEnum scope) Cleanses the supplied graph by leaving only one directed versioned edge\ between any two nodes, if multiple exists.
private void	visit(MetadataGraphVertex from, java.util.List<MetadataGraphVertex> visited, MetadataGraph graph)

Methods inherited from class java.lang.Object

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

Field Detail

policy

@Requirement(role=GraphConflictResolutionPolicy.class)
protected GraphConflictResolutionPolicy policy

artifact, closer to the entry point, is selected

Constructor Detail

DefaultGraphConflictResolver

public DefaultGraphConflictResolver()

Method Detail

resolveConflicts

public MetadataGraph resolveConflicts(MetadataGraph graph,
                                      ArtifactScopeEnum scope)
                               throws GraphConflictResolutionException

Description copied from interface: GraphConflictResolver

Cleanses the supplied graph by leaving only one directed versioned edge\ between any two nodes, if multiple exists. Uses scope relationships, defined in ArtifactScopeEnum

Specified by:

resolveConflicts in interface GraphConflictResolver

Parameters:

graph - the "dirty" graph to be simplified via conflict resolution

scope - scope for which the graph should be resolved

Returns:

resulting "clean" graph for the specified scope

Throws:

GraphConflictResolutionException

findLinkedSubgraph

private MetadataGraph findLinkedSubgraph(MetadataGraph g)

visit

private void visit(MetadataGraphVertex from,
                   java.util.List<MetadataGraphVertex> visited,
                   MetadataGraph graph)

cleanEdges

private MetadataGraphEdge cleanEdges(MetadataGraphVertex v,
                                     java.util.List<MetadataGraphEdge> edges,
                                     ArtifactScopeEnum scope)