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19 package org.apache.maven.internal.impl.resolver;
20
21 import java.io.File;
22 import java.nio.file.Path;
23 import java.text.DateFormat;
24 import java.text.SimpleDateFormat;
25 import java.util.ArrayList;
26 import java.util.Date;
27 import java.util.GregorianCalendar;
28 import java.util.LinkedHashMap;
29 import java.util.Map;
30 import java.util.TimeZone;
31
32 import org.apache.maven.api.metadata.Metadata;
33 import org.apache.maven.api.metadata.Snapshot;
34 import org.apache.maven.api.metadata.SnapshotVersion;
35 import org.apache.maven.api.metadata.Versioning;
36 import org.eclipse.aether.artifact.Artifact;
37
38
39
40
41 final class RemoteSnapshotMetadata extends MavenSnapshotMetadata {
42 public static final String DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT = "yyyyMMdd.HHmmss";
43
44 public static final TimeZone DEFAULT_SNAPSHOT_TIME_ZONE = TimeZone.getTimeZone("Etc/UTC");
45
46 private final Map<String, SnapshotVersion> versions = new LinkedHashMap<>();
47
48 private final Integer buildNumber;
49
50 RemoteSnapshotMetadata(Artifact artifact, Date timestamp, Integer buildNumber) {
51 super(createRepositoryMetadata(artifact), null, timestamp);
52 this.buildNumber = buildNumber;
53 }
54
55 private RemoteSnapshotMetadata(Metadata metadata, Path path, Date timestamp, Integer buildNumber) {
56 super(metadata, path, timestamp);
57 this.buildNumber = buildNumber;
58 }
59
60 @Deprecated
61 @Override
62 public MavenMetadata setFile(File file) {
63 return new RemoteSnapshotMetadata(metadata, file.toPath(), timestamp, buildNumber);
64 }
65
66 @Override
67 public MavenMetadata setPath(Path path) {
68 return new RemoteSnapshotMetadata(metadata, path, timestamp, buildNumber);
69 }
70
71 public String getExpandedVersion(Artifact artifact) {
72 String key = getKey(artifact.getClassifier(), artifact.getExtension());
73 return versions.get(key).getVersion();
74 }
75
76 @Override
77 protected void merge(Metadata recessive) {
78 Snapshot snapshot;
79 String lastUpdated;
80
81 if (metadata.getVersioning() == null) {
82 DateFormat utcDateFormatter = new SimpleDateFormat(DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT);
83 utcDateFormatter.setCalendar(new GregorianCalendar());
84 utcDateFormatter.setTimeZone(DEFAULT_SNAPSHOT_TIME_ZONE);
85
86 snapshot = Snapshot.newBuilder()
87 .buildNumber(buildNumber != null ? buildNumber : getBuildNumber(recessive) + 1)
88 .timestamp(utcDateFormatter.format(this.timestamp))
89 .build();
90
91 lastUpdated = fmt.format(timestamp);
92 Versioning versioning = Versioning.newBuilder()
93 .snapshot(snapshot)
94 .lastUpdated(lastUpdated)
95 .build();
96
97 metadata = metadata.withVersioning(versioning);
98 } else {
99 snapshot = metadata.getVersioning().getSnapshot();
100 lastUpdated = metadata.getVersioning().getLastUpdated();
101 }
102
103 for (Artifact artifact : artifacts) {
104 String version = artifact.getVersion();
105
106 if (version.endsWith(SNAPSHOT)) {
107 String qualifier = snapshot.getTimestamp() + '-' + snapshot.getBuildNumber();
108 version = version.substring(0, version.length() - SNAPSHOT.length()) + qualifier;
109 }
110
111 SnapshotVersion sv = SnapshotVersion.newBuilder()
112 .classifier(artifact.getClassifier())
113 .extension(artifact.getExtension())
114 .version(version)
115 .updated(lastUpdated)
116 .build();
117
118 versions.put(getKey(sv.getClassifier(), sv.getExtension()), sv);
119 }
120
121 artifacts.clear();
122
123 Versioning versioning = recessive.getVersioning();
124 if (versioning != null) {
125 for (SnapshotVersion sv : versioning.getSnapshotVersions()) {
126 String key = getKey(sv.getClassifier(), sv.getExtension());
127 if (!versions.containsKey(key)) {
128 versions.put(key, sv);
129 }
130 }
131 }
132
133 metadata = metadata.withVersioning(metadata.getVersioning().withSnapshotVersions(versions.values()));
134
135
136 if (recessive.getPlugins() != null && !recessive.getPlugins().isEmpty()) {
137 metadata = metadata.withPlugins(new ArrayList<>(recessive.getPlugins()));
138 }
139 }
140
141 private static int getBuildNumber(Metadata metadata) {
142 int number = 0;
143
144 Versioning versioning = metadata.getVersioning();
145 if (versioning != null) {
146 Snapshot snapshot = versioning.getSnapshot();
147 if (snapshot != null && snapshot.getBuildNumber() > 0) {
148 number = snapshot.getBuildNumber();
149 }
150 }
151
152 return number;
153 }
154 }