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.GregorianCalendar;
26 import java.util.TimeZone;
27
28 import org.apache.maven.artifact.Artifact;
29 import org.apache.maven.artifact.deployer.ArtifactDeploymentException;
30 import org.apache.maven.artifact.repository.ArtifactRepository;
31 import org.apache.maven.artifact.repository.RepositoryRequest;
32 import org.apache.maven.artifact.repository.metadata.Metadata;
33 import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
34 import org.apache.maven.artifact.repository.metadata.RepositoryMetadataResolutionException;
35 import org.apache.maven.artifact.repository.metadata.Snapshot;
36 import org.apache.maven.artifact.repository.metadata.SnapshotArtifactRepositoryMetadata;
37 import org.apache.maven.artifact.repository.metadata.Versioning;
38 import org.apache.maven.artifact.resolver.ArtifactResolutionException;
39 import org.codehaus.plexus.component.annotations.Component;
40 import org.codehaus.plexus.util.StringUtils;
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45
46 @Component( role = ArtifactTransformation.class, hint = "snapshot" )
47 public class SnapshotTransformation
48 extends AbstractVersionTransformation
49 {
50 private static final String DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT = "yyyyMMdd.HHmmss";
51
52 private static final TimeZone DEFAULT_SNAPSHOT_TIME_ZONE = TimeZone.getTimeZone( "Etc/UTC" );
53
54 private String deploymentTimestamp;
55
56 public void transformForResolve( Artifact artifact, RepositoryRequest request )
57 throws ArtifactResolutionException
58 {
59
60 if ( artifact.isSnapshot() && artifact.getBaseVersion().equals( artifact.getVersion() ) )
61 {
62 try
63 {
64 String version = resolveVersion( artifact, request );
65 artifact.updateVersion( version, request.getLocalRepository() );
66 }
67 catch ( RepositoryMetadataResolutionException e )
68 {
69 throw new ArtifactResolutionException( e.getMessage(), artifact, e );
70 }
71 }
72 }
73
74 public void transformForInstall( Artifact artifact, ArtifactRepository localRepository )
75 {
76 if ( artifact.isSnapshot() )
77 {
78 Snapshot snapshot = new Snapshot();
79 snapshot.setLocalCopy( true );
80 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact, snapshot );
81
82 artifact.addMetadata( metadata );
83 }
84 }
85
86 public void transformForDeployment( Artifact artifact, ArtifactRepository remoteRepository,
87 ArtifactRepository localRepository )
88 throws ArtifactDeploymentException
89 {
90 if ( artifact.isSnapshot() )
91 {
92 Snapshot snapshot = new Snapshot();
93
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95 snapshot.setTimestamp( getDeploymentTimestamp() );
96
97
98 try
99 {
100 int buildNumber = resolveLatestSnapshotBuildNumber( artifact, localRepository, remoteRepository );
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102 snapshot.setBuildNumber( buildNumber + 1 );
103 }
104 catch ( RepositoryMetadataResolutionException e )
105 {
106 throw new ArtifactDeploymentException( "Error retrieving previous build number for artifact '"
107 + artifact.getDependencyConflictId() + "': " + e.getMessage(), e );
108 }
109
110 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact, snapshot );
111
112 artifact.setResolvedVersion(
113 constructVersion( metadata.getMetadata().getVersioning(), artifact.getBaseVersion() ) );
114
115 artifact.addMetadata( metadata );
116 }
117 }
118
119 public String getDeploymentTimestamp()
120 {
121 if ( deploymentTimestamp == null )
122 {
123 deploymentTimestamp = getUtcDateFormatter().format( new Date() );
124 }
125 return deploymentTimestamp;
126 }
127
128 protected String constructVersion( Versioning versioning, String baseVersion )
129 {
130 String version = null;
131 Snapshot snapshot = versioning.getSnapshot();
132 if ( snapshot != null )
133 {
134 if ( snapshot.getTimestamp() != null && snapshot.getBuildNumber() > 0 )
135 {
136 String newVersion = snapshot.getTimestamp() + "-" + snapshot.getBuildNumber();
137 version = StringUtils.replace( baseVersion, Artifact.SNAPSHOT_VERSION, newVersion );
138 }
139 else
140 {
141 version = baseVersion;
142 }
143 }
144 return version;
145 }
146
147 private int resolveLatestSnapshotBuildNumber( Artifact artifact, ArtifactRepository localRepository,
148 ArtifactRepository remoteRepository )
149 throws RepositoryMetadataResolutionException
150 {
151 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact );
152
153 getLogger().info( "Retrieving previous build number from " + remoteRepository.getId() );
154 repositoryMetadataManager.resolveAlways( metadata, localRepository, remoteRepository );
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156 int buildNumber = 0;
157 Metadata repoMetadata = metadata.getMetadata();
158 if ( ( repoMetadata != null )
159 && ( repoMetadata.getVersioning() != null && repoMetadata.getVersioning().getSnapshot() != null ) )
160 {
161 buildNumber = repoMetadata.getVersioning().getSnapshot().getBuildNumber();
162 }
163 return buildNumber;
164 }
165
166 public static DateFormat getUtcDateFormatter()
167 {
168 DateFormat utcDateFormatter = new SimpleDateFormat( DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT );
169 utcDateFormatter.setCalendar( new GregorianCalendar() );
170 utcDateFormatter.setTimeZone( DEFAULT_SNAPSHOT_TIME_ZONE );
171 return utcDateFormatter;
172 }
173
174 }