1 package org.apache.maven.shared.dependency.graph.internal;
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22 import java.util.ArrayList;
23 import java.util.Collections;
24 import java.util.List;
25
26 import org.apache.maven.RepositoryUtils;
27 import org.apache.maven.artifact.Artifact;
28 import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
29 import org.apache.maven.project.DefaultDependencyResolutionRequest;
30 import org.apache.maven.project.DependencyResolutionException;
31 import org.apache.maven.project.DependencyResolutionRequest;
32 import org.apache.maven.project.DependencyResolutionResult;
33 import org.apache.maven.project.MavenProject;
34 import org.apache.maven.project.ProjectBuildingRequest;
35 import org.apache.maven.project.ProjectDependenciesResolver;
36 import org.apache.maven.shared.dependency.graph.DependencyGraphBuilder;
37 import org.apache.maven.shared.dependency.graph.DependencyGraphBuilderException;
38 import org.apache.maven.shared.dependency.graph.DependencyNode;
39 import org.codehaus.plexus.component.annotations.Component;
40 import org.codehaus.plexus.component.annotations.Requirement;
41 import org.codehaus.plexus.logging.AbstractLogEnabled;
42 import org.sonatype.aether.graph.DependencyFilter;
43 import org.sonatype.aether.graph.Dependency;
44 import org.sonatype.aether.version.VersionConstraint;
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53 @Component( role = DependencyGraphBuilder.class, hint = "maven3" )
54 public class Maven3DependencyGraphBuilder
55 extends AbstractLogEnabled
56 implements DependencyGraphBuilder
57 {
58 @Requirement
59 private ProjectDependenciesResolver resolver;
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69 @Override
70 public DependencyNode buildDependencyGraph( ProjectBuildingRequest buildingRequest, ArtifactFilter filter )
71 throws DependencyGraphBuilderException
72 {
73 MavenProject project = buildingRequest.getProject();
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75 DependencyResolutionRequest request =
76 new DefaultDependencyResolutionRequest( project, buildingRequest.getRepositorySession() );
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79 DependencyFilter collectFilter = new DependencyFilter()
80 {
81 @Override
82 public boolean accept( org.sonatype.aether.graph.DependencyNode node,
83 List<org.sonatype.aether.graph.DependencyNode> parents )
84 {
85 return false;
86 }
87 };
88 request.setResolutionFilter( collectFilter );
89
90 DependencyResolutionResult result = resolveDependencies( request );
91
92 return buildDependencyNode( null, result.getDependencyGraph(), project.getArtifact(), filter );
93 }
94
95 private DependencyResolutionResult resolveDependencies( DependencyResolutionRequest request )
96 throws DependencyGraphBuilderException
97 {
98 try
99 {
100 return resolver.resolve( request );
101 }
102 catch ( DependencyResolutionException e )
103 {
104 throw new DependencyGraphBuilderException( "Could not resolve following dependencies: "
105 + e.getResult().getUnresolvedDependencies(), e );
106 }
107 }
108
109 private Artifact getDependencyArtifact( Dependency dep )
110 {
111 Artifact mavenArtifact = RepositoryUtils.toArtifact( dep.getArtifact() );
112
113 mavenArtifact.setScope( dep.getScope() );
114 mavenArtifact.setOptional( dep.isOptional() );
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116 return mavenArtifact;
117 }
118
119 private DependencyNode buildDependencyNode( DependencyNode parent, org.sonatype.aether.graph.DependencyNode node,
120 Artifact artifact, ArtifactFilter filter )
121 {
122 DefaultDependencyNode current =
123 new DefaultDependencyNode( parent, artifact,
124 null ,
125 null ,
126 getVersionSelectedFromRange( node.getVersionConstraint() ) );
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128 List<DependencyNode> nodes = new ArrayList<DependencyNode>( node.getChildren().size() );
129 for ( org.sonatype.aether.graph.DependencyNode child : node.getChildren() )
130 {
131 Artifact childArtifact = getDependencyArtifact( child.getDependency() );
132
133 if ( ( filter == null ) || filter.include( childArtifact ) )
134 {
135 nodes.add( buildDependencyNode( current, child, childArtifact, filter ) );
136 }
137 }
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139 current.setChildren( Collections.unmodifiableList( nodes ) );
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141 return current;
142 }
143
144 private String getVersionSelectedFromRange( VersionConstraint constraint )
145 {
146 if ( ( constraint == null ) || ( constraint.getVersion() != null ) )
147 {
148 return null;
149 }
150
151 StringBuilder sb = new StringBuilder();
152 for ( org.sonatype.aether.version.VersionRange range : constraint.getRanges() )
153 {
154 if ( sb.length() > 0 )
155 {
156 sb.append( ',' );
157 }
158 sb.append( range );
159 }
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161 return sb.toString();
162 }
163 }