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