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19 package org.apache.maven.repository.internal;
20
21 import java.io.File;
22 import java.text.DateFormat;
23 import java.text.SimpleDateFormat;
24 import java.util.ArrayList;
25 import java.util.Date;
26 import java.util.GregorianCalendar;
27 import java.util.LinkedHashMap;
28 import java.util.Map;
29 import java.util.TimeZone;
30
31 import org.apache.maven.artifact.repository.metadata.Metadata;
32 import org.apache.maven.artifact.repository.metadata.Snapshot;
33 import org.apache.maven.artifact.repository.metadata.SnapshotVersion;
34 import org.apache.maven.artifact.repository.metadata.Versioning;
35 import org.eclipse.aether.artifact.Artifact;
36
37
38
39
40 final class RemoteSnapshotMetadata extends MavenSnapshotMetadata {
41 public static final String DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT = "yyyyMMdd.HHmmss";
42
43 public static final TimeZone DEFAULT_SNAPSHOT_TIME_ZONE = TimeZone.getTimeZone("Etc/UTC");
44
45 private final Map<String, SnapshotVersion> versions = new LinkedHashMap<>();
46
47 RemoteSnapshotMetadata(Artifact artifact, Date timestamp) {
48 super(createRepositoryMetadata(artifact), null, timestamp);
49 }
50
51 private RemoteSnapshotMetadata(Metadata metadata, File file, Date timestamp) {
52 super(metadata, file, timestamp);
53 }
54
55 @Override
56 public MavenMetadata setFile(File file) {
57 return new RemoteSnapshotMetadata(metadata, file, timestamp);
58 }
59
60 public String getExpandedVersion(Artifact artifact) {
61 String key = getKey(artifact.getClassifier(), artifact.getExtension());
62 return versions.get(key).getVersion();
63 }
64
65 @Override
66 protected void merge(Metadata recessive) {
67 Snapshot snapshot;
68 String lastUpdated;
69
70 if (metadata.getVersioning() == null) {
71 DateFormat utcDateFormatter = new SimpleDateFormat(DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT);
72 utcDateFormatter.setCalendar(new GregorianCalendar());
73 utcDateFormatter.setTimeZone(DEFAULT_SNAPSHOT_TIME_ZONE);
74
75 snapshot = new Snapshot();
76 snapshot.setBuildNumber(getBuildNumber(recessive) + 1);
77 snapshot.setTimestamp(utcDateFormatter.format(timestamp));
78
79 Versioning versioning = new Versioning();
80 versioning.setSnapshot(snapshot);
81 versioning.setLastUpdatedTimestamp(timestamp);
82 lastUpdated = versioning.getLastUpdated();
83
84 metadata.setVersioning(versioning);
85 } else {
86 snapshot = metadata.getVersioning().getSnapshot();
87 lastUpdated = metadata.getVersioning().getLastUpdated();
88 }
89
90 for (Artifact artifact : artifacts) {
91 String version = artifact.getVersion();
92
93 if (version.endsWith(SNAPSHOT)) {
94 String qualifier = snapshot.getTimestamp() + '-' + snapshot.getBuildNumber();
95 version = version.substring(0, version.length() - SNAPSHOT.length()) + qualifier;
96 }
97
98 SnapshotVersion sv = new SnapshotVersion();
99 sv.setClassifier(artifact.getClassifier());
100 sv.setExtension(artifact.getExtension());
101 sv.setVersion(version);
102 sv.setUpdated(lastUpdated);
103
104 versions.put(getKey(sv.getClassifier(), sv.getExtension()), sv);
105 }
106
107 artifacts.clear();
108
109 Versioning versioning = recessive.getVersioning();
110 if (versioning != null) {
111 for (SnapshotVersion sv : versioning.getSnapshotVersions()) {
112 String key = getKey(sv.getClassifier(), sv.getExtension());
113 if (!versions.containsKey(key)) {
114 versions.put(key, sv);
115 }
116 }
117 }
118
119 metadata.getVersioning().setSnapshotVersions(new ArrayList<>(versions.values()));
120 }
121
122 private static int getBuildNumber(Metadata metadata) {
123 int number = 0;
124
125 Versioning versioning = metadata.getVersioning();
126 if (versioning != null) {
127 Snapshot snapshot = versioning.getSnapshot();
128 if (snapshot != null && snapshot.getBuildNumber() > 0) {
129 number = snapshot.getBuildNumber();
130 }
131 }
132
133 return number;
134 }
135 }