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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.impl.MetadataGenerator;
30 import org.eclipse.aether.installation.InstallRequest;
31 import org.eclipse.aether.metadata.Metadata;
32 import org.eclipse.aether.util.ConfigUtils;
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39 class LocalSnapshotMetadataGenerator implements MetadataGenerator {
40
41 private Map<Object, LocalSnapshotMetadata> snapshots;
42
43 private final boolean legacyFormat;
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45 private final Date timestamp;
46
47 LocalSnapshotMetadataGenerator(RepositorySystemSession session, InstallRequest request) {
48 legacyFormat = ConfigUtils.getBoolean(session.getConfigProperties(), false, "maven.metadata.legacy");
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50 timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");
51
52 snapshots = new LinkedHashMap<>();
53 }
54
55 public Collection<? extends Metadata> prepare(Collection<? extends Artifact> artifacts) {
56 for (Artifact artifact : artifacts) {
57 if (artifact.isSnapshot()) {
58 Object key = LocalSnapshotMetadata.getKey(artifact);
59 LocalSnapshotMetadata snapshotMetadata = snapshots.get(key);
60 if (snapshotMetadata == null) {
61 snapshotMetadata = new LocalSnapshotMetadata(artifact, legacyFormat, timestamp);
62 snapshots.put(key, snapshotMetadata);
63 }
64 snapshotMetadata.bind(artifact);
65 }
66 }
67
68 return Collections.emptyList();
69 }
70
71 public Artifact transformArtifact(Artifact artifact) {
72 return artifact;
73 }
74
75 public Collection<? extends Metadata> finish(Collection<? extends Artifact> artifacts) {
76 return snapshots.values();
77 }
78 }