1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package org.apache.maven.internal.impl;
20
21 import javax.inject.Named;
22 import javax.inject.Singleton;
23
24 import java.util.List;
25
26 import org.apache.maven.api.Node;
27 import org.apache.maven.api.annotations.Nonnull;
28 import org.apache.maven.api.services.DependencyCollector;
29 import org.apache.maven.api.services.DependencyCollectorException;
30 import org.apache.maven.api.services.DependencyCollectorRequest;
31 import org.apache.maven.api.services.DependencyCollectorResult;
32 import org.eclipse.aether.DefaultRepositorySystemSession;
33 import org.eclipse.aether.RepositorySystemSession;
34 import org.eclipse.aether.artifact.Artifact;
35 import org.eclipse.aether.collection.CollectRequest;
36 import org.eclipse.aether.collection.CollectResult;
37 import org.eclipse.aether.collection.DependencyCollectionException;
38 import org.eclipse.aether.graph.Dependency;
39 import org.eclipse.aether.util.graph.manager.DependencyManagerUtils;
40 import org.eclipse.aether.util.graph.transformer.ConflictResolver;
41
42 import static org.apache.maven.internal.impl.Utils.nonNull;
43
44 @Named
45 @Singleton
46 public class DefaultDependencyCollector implements DependencyCollector {
47
48 @Nonnull
49 @Override
50 public DependencyCollectorResult collect(@Nonnull DependencyCollectorRequest request)
51 throws DependencyCollectorException, IllegalArgumentException {
52 nonNull(request, "request");
53 InternalSession session = InternalSession.from(request.getSession());
54
55 Artifact rootArtifact =
56 request.getRootArtifact().map(session::toArtifact).orElse(null);
57 Dependency root = request.getRoot().map(session::toDependency).orElse(null);
58 CollectRequest collectRequest = new CollectRequest()
59 .setRootArtifact(rootArtifact)
60 .setRoot(root)
61 .setDependencies(session.toDependencies(request.getDependencies()))
62 .setManagedDependencies(session.toDependencies(request.getManagedDependencies()))
63 .setRepositories(session.toRepositories(session.getRemoteRepositories()));
64
65 RepositorySystemSession systemSession = session.getSession();
66 if (request.getVerbose()) {
67 systemSession = new DefaultRepositorySystemSession(systemSession)
68 .setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true)
69 .setConfigProperty(DependencyManagerUtils.CONFIG_PROP_VERBOSE, true);
70 }
71
72 try {
73 final CollectResult result =
74 session.getRepositorySystem().collectDependencies(systemSession, collectRequest);
75 return new DependencyCollectorResult() {
76 @Override
77 public List<Exception> getExceptions() {
78 return result.getExceptions();
79 }
80
81 @Override
82 public Node getRoot() {
83 return session.getNode(result.getRoot(), request.getVerbose());
84 }
85 };
86 } catch (DependencyCollectionException e) {
87 throw new DependencyCollectorException("Unable to collect dependencies", e);
88 }
89 }
90 }