1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package org.apache.maven.repository.legacy.resolver.transform;
20
21 import java.text.DateFormat;
22 import java.text.SimpleDateFormat;
23 import java.util.Date;
24 import java.util.GregorianCalendar;
25 import java.util.TimeZone;
26
27 import org.apache.maven.artifact.Artifact;
28 import org.apache.maven.artifact.deployer.ArtifactDeploymentException;
29 import org.apache.maven.artifact.repository.ArtifactRepository;
30 import org.apache.maven.artifact.repository.RepositoryRequest;
31 import org.apache.maven.artifact.repository.metadata.Metadata;
32 import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
33 import org.apache.maven.artifact.repository.metadata.RepositoryMetadataResolutionException;
34 import org.apache.maven.artifact.repository.metadata.Snapshot;
35 import org.apache.maven.artifact.repository.metadata.SnapshotArtifactRepositoryMetadata;
36 import org.apache.maven.artifact.repository.metadata.Versioning;
37 import org.apache.maven.artifact.resolver.ArtifactResolutionException;
38 import org.codehaus.plexus.component.annotations.Component;
39 import org.codehaus.plexus.util.StringUtils;
40
41
42
43
44
45 @Component(role = ArtifactTransformation.class, hint = "snapshot")
46 public class SnapshotTransformation extends AbstractVersionTransformation {
47 private static final String DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT = "yyyyMMdd.HHmmss";
48
49 private static final TimeZone DEFAULT_SNAPSHOT_TIME_ZONE = TimeZone.getTimeZone("Etc/UTC");
50
51 private String deploymentTimestamp;
52
53 public void transformForResolve(Artifact artifact, RepositoryRequest request) throws ArtifactResolutionException {
54
55 if (artifact.isSnapshot() && artifact.getBaseVersion().equals(artifact.getVersion())) {
56 try {
57 String version = resolveVersion(artifact, request);
58 artifact.updateVersion(version, request.getLocalRepository());
59 } catch (RepositoryMetadataResolutionException e) {
60 throw new ArtifactResolutionException(e.getMessage(), artifact, e);
61 }
62 }
63 }
64
65 public void transformForInstall(Artifact artifact, ArtifactRepository localRepository) {
66 if (artifact.isSnapshot()) {
67 Snapshot snapshot = new Snapshot();
68 snapshot.setLocalCopy(true);
69 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata(artifact, snapshot);
70
71 artifact.addMetadata(metadata);
72 }
73 }
74
75 public void transformForDeployment(
76 Artifact artifact, ArtifactRepository remoteRepository, ArtifactRepository localRepository)
77 throws ArtifactDeploymentException {
78 if (artifact.isSnapshot()) {
79 Snapshot snapshot = new Snapshot();
80
81
82 snapshot.setTimestamp(getDeploymentTimestamp());
83
84
85 try {
86 int buildNumber = resolveLatestSnapshotBuildNumber(artifact, localRepository, remoteRepository);
87
88 snapshot.setBuildNumber(buildNumber + 1);
89 } catch (RepositoryMetadataResolutionException e) {
90 throw new ArtifactDeploymentException(
91 "Error retrieving previous build number for artifact '" + artifact.getDependencyConflictId()
92 + "': " + e.getMessage(),
93 e);
94 }
95
96 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata(artifact, snapshot);
97
98 artifact.setResolvedVersion(
99 constructVersion(metadata.getMetadata().getVersioning(), artifact.getBaseVersion()));
100
101 artifact.addMetadata(metadata);
102 }
103 }
104
105 public String getDeploymentTimestamp() {
106 if (deploymentTimestamp == null) {
107 deploymentTimestamp = getUtcDateFormatter().format(new Date());
108 }
109 return deploymentTimestamp;
110 }
111
112 protected String constructVersion(Versioning versioning, String baseVersion) {
113 String version = null;
114 Snapshot snapshot = versioning.getSnapshot();
115 if (snapshot != null) {
116 if (snapshot.getTimestamp() != null && snapshot.getBuildNumber() > 0) {
117 String newVersion = snapshot.getTimestamp() + "-" + snapshot.getBuildNumber();
118 version = StringUtils.replace(baseVersion, Artifact.SNAPSHOT_VERSION, newVersion);
119 } else {
120 version = baseVersion;
121 }
122 }
123 return version;
124 }
125
126 private int resolveLatestSnapshotBuildNumber(
127 Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository)
128 throws RepositoryMetadataResolutionException {
129 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata(artifact);
130
131 getLogger().info("Retrieving previous build number from " + remoteRepository.getId());
132 repositoryMetadataManager.resolveAlways(metadata, localRepository, remoteRepository);
133
134 int buildNumber = 0;
135 Metadata repoMetadata = metadata.getMetadata();
136 if ((repoMetadata != null)
137 && (repoMetadata.getVersioning() != null
138 && repoMetadata.getVersioning().getSnapshot() != null)) {
139 buildNumber = repoMetadata.getVersioning().getSnapshot().getBuildNumber();
140 }
141 return buildNumber;
142 }
143
144 public static DateFormat getUtcDateFormatter() {
145 DateFormat utcDateFormatter = new SimpleDateFormat(DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT);
146 utcDateFormatter.setCalendar(new GregorianCalendar());
147 utcDateFormatter.setTimeZone(DEFAULT_SNAPSHOT_TIME_ZONE);
148 return utcDateFormatter;
149 }
150 }