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19 package org.apache.maven.internal.aether;
20
21 import java.io.File;
22 import java.util.Collection;
23 import java.util.List;
24
25 import org.apache.maven.model.Model;
26 import org.apache.maven.repository.internal.MavenWorkspaceReader;
27 import org.eclipse.aether.artifact.Artifact;
28 import org.eclipse.aether.repository.WorkspaceReader;
29 import org.eclipse.aether.repository.WorkspaceRepository;
30 import org.eclipse.aether.util.repository.ChainedWorkspaceReader;
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35 public final class MavenChainedWorkspaceReader implements MavenWorkspaceReader {
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37 private ChainedWorkspaceReader delegate;
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39 private WorkspaceReader[] readers;
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46 private MavenChainedWorkspaceReader(WorkspaceReader... readers) {
47 this.delegate = new ChainedWorkspaceReader(readers);
48 this.readers = readers;
49 }
50
51 @Override
52 public Model findModel(Artifact artifact) {
53 for (WorkspaceReader workspaceReader : readers) {
54 if (workspaceReader instanceof MavenWorkspaceReader) {
55 Model model = ((MavenWorkspaceReader) workspaceReader).findModel(artifact);
56 if (model != null) {
57 return model;
58 }
59 }
60 }
61 return null;
62 }
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64 @Override
65 public WorkspaceRepository getRepository() {
66 return delegate.getRepository();
67 }
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69 @Override
70 public File findArtifact(Artifact artifact) {
71 return delegate.findArtifact(artifact);
72 }
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74 @Override
75 public List<String> findVersions(Artifact artifact) {
76 return delegate.findVersions(artifact);
77 }
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85 public static WorkspaceReader of(Collection<WorkspaceReader> workspaceReaderCollection) {
86 WorkspaceReader[] readers = workspaceReaderCollection.toArray(new WorkspaceReader[0]);
87 if (readers.length == 1) {
88 return readers[0];
89 }
90 return new MavenChainedWorkspaceReader(readers);
91 }
92 }