1 package org.apache.maven.repository.legacy.resolver.transform;
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22 import java.text.DateFormat;
23 import java.text.SimpleDateFormat;
24 import java.util.Date;
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;
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44
45 @Component( role = ArtifactTransformation.class, hint = "snapshot" )
46 public class SnapshotTransformation
47 extends AbstractVersionTransformation
48 {
49 private String deploymentTimestamp;
50
51 private static final TimeZone UTC_TIME_ZONE = TimeZone.getTimeZone( "UTC" );
52
53 private static final String UTC_TIMESTAMP_PATTERN = "yyyyMMdd.HHmmss";
54
55 public void transformForResolve( Artifact artifact, RepositoryRequest request )
56 throws ArtifactResolutionException
57 {
58
59 if ( artifact.isSnapshot() && artifact.getBaseVersion().equals( artifact.getVersion() ) )
60 {
61 try
62 {
63 String version = resolveVersion( artifact, request );
64 artifact.updateVersion( version, request.getLocalRepository() );
65 }
66 catch ( RepositoryMetadataResolutionException e )
67 {
68 throw new ArtifactResolutionException( e.getMessage(), artifact, e );
69 }
70 }
71 }
72
73 public void transformForInstall( Artifact artifact, ArtifactRepository localRepository )
74 {
75 if ( artifact.isSnapshot() )
76 {
77 Snapshot snapshot = new Snapshot();
78 snapshot.setLocalCopy( true );
79 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact, snapshot );
80
81 artifact.addMetadata( metadata );
82 }
83 }
84
85 public void transformForDeployment( Artifact artifact, ArtifactRepository remoteRepository,
86 ArtifactRepository localRepository )
87 throws ArtifactDeploymentException
88 {
89 if ( artifact.isSnapshot() )
90 {
91 Snapshot snapshot = new Snapshot();
92
93 snapshot.setTimestamp( getDeploymentTimestamp() );
94
95
96 try
97 {
98 int buildNumber = resolveLatestSnapshotBuildNumber( artifact, localRepository, remoteRepository );
99
100 snapshot.setBuildNumber( buildNumber + 1 );
101 }
102 catch ( RepositoryMetadataResolutionException e )
103 {
104 throw new ArtifactDeploymentException( "Error retrieving previous build number for artifact '"
105 + artifact.getDependencyConflictId() + "': " + e.getMessage(), e );
106 }
107
108 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact, snapshot );
109
110 artifact.setResolvedVersion(
111 constructVersion( metadata.getMetadata().getVersioning(), artifact.getBaseVersion() ) );
112
113 artifact.addMetadata( metadata );
114 }
115 }
116
117 public String getDeploymentTimestamp()
118 {
119 if ( deploymentTimestamp == null )
120 {
121 deploymentTimestamp = getUtcDateFormatter().format( new Date() );
122 }
123 return deploymentTimestamp;
124 }
125
126 protected String constructVersion( Versioning versioning, String baseVersion )
127 {
128 String version = null;
129 Snapshot snapshot = versioning.getSnapshot();
130 if ( snapshot != null )
131 {
132 if ( snapshot.getTimestamp() != null && snapshot.getBuildNumber() > 0 )
133 {
134 String newVersion = snapshot.getTimestamp() + "-" + snapshot.getBuildNumber();
135 version = StringUtils.replace( baseVersion, Artifact.SNAPSHOT_VERSION, newVersion );
136 }
137 else
138 {
139 version = baseVersion;
140 }
141 }
142 return version;
143 }
144
145 private int resolveLatestSnapshotBuildNumber( Artifact artifact, ArtifactRepository localRepository,
146 ArtifactRepository remoteRepository )
147 throws RepositoryMetadataResolutionException
148 {
149 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact );
150
151 getLogger().info( "Retrieving previous build number from " + remoteRepository.getId() );
152 repositoryMetadataManager.resolveAlways( metadata, localRepository, remoteRepository );
153
154 int buildNumber = 0;
155 Metadata repoMetadata = metadata.getMetadata();
156 if ( ( repoMetadata != null )
157 && ( repoMetadata.getVersioning() != null && repoMetadata.getVersioning().getSnapshot() != null ) )
158 {
159 buildNumber = repoMetadata.getVersioning().getSnapshot().getBuildNumber();
160 }
161 return buildNumber;
162 }
163
164 public static DateFormat getUtcDateFormatter()
165 {
166 DateFormat utcDateFormatter = new SimpleDateFormat( UTC_TIMESTAMP_PATTERN );
167 utcDateFormatter.setTimeZone( UTC_TIME_ZONE );
168 return utcDateFormatter;
169 }
170
171 }