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19 package org.apache.maven.repository.internal;
20
21 import java.util.Collection;
22 import java.util.Collections;
23 import java.util.Date;
24 import java.util.LinkedHashMap;
25 import java.util.Map;
26
27 import org.eclipse.aether.RepositorySystemSession;
28 import org.eclipse.aether.artifact.Artifact;
29 import org.eclipse.aether.deployment.DeployRequest;
30 import org.eclipse.aether.impl.MetadataGenerator;
31 import org.eclipse.aether.metadata.Metadata;
32 import org.eclipse.aether.util.ConfigUtils;
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39 class RemoteSnapshotMetadataGenerator implements MetadataGenerator {
40
41 private final Map<Object, RemoteSnapshotMetadata> snapshots;
42
43 private final boolean legacyFormat;
44
45 private final Date timestamp;
46
47 RemoteSnapshotMetadataGenerator(RepositorySystemSession session, DeployRequest request) {
48 legacyFormat = ConfigUtils.getBoolean(session, false, "maven.metadata.legacy");
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50 timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");
51
52 snapshots = new LinkedHashMap<>();
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59
60 for (Metadata metadata : request.getMetadata()) {
61 if (metadata instanceof RemoteSnapshotMetadata) {
62 RemoteSnapshotMetadata snapshotMetadata = (RemoteSnapshotMetadata) metadata;
63 snapshots.put(snapshotMetadata.getKey(), snapshotMetadata);
64 }
65 }
66 }
67
68 @Override
69 public Collection<? extends Metadata> prepare(Collection<? extends Artifact> artifacts) {
70 for (Artifact artifact : artifacts) {
71 if (artifact.isSnapshot()) {
72 Object key = RemoteSnapshotMetadata.getKey(artifact);
73 RemoteSnapshotMetadata snapshotMetadata = snapshots.get(key);
74 if (snapshotMetadata == null) {
75 snapshotMetadata = new RemoteSnapshotMetadata(artifact, legacyFormat, timestamp);
76 snapshots.put(key, snapshotMetadata);
77 }
78 snapshotMetadata.bind(artifact);
79 }
80 }
81
82 return snapshots.values();
83 }
84
85 @Override
86 public Artifact transformArtifact(Artifact artifact) {
87 if (artifact.isSnapshot() && artifact.getVersion().equals(artifact.getBaseVersion())) {
88 Object key = RemoteSnapshotMetadata.getKey(artifact);
89 RemoteSnapshotMetadata snapshotMetadata = snapshots.get(key);
90 if (snapshotMetadata != null) {
91 artifact = artifact.setVersion(snapshotMetadata.getExpandedVersion(artifact));
92 }
93 }
94
95 return artifact;
96 }
97
98 @Override
99 public Collection<? extends Metadata> finish(Collection<? extends Artifact> artifacts) {
100 return Collections.emptyList();
101 }
102 }