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
94 snapshot.setTimestamp( getDeploymentTimestamp() );
95
96
97 try
98 {
99 int buildNumber = resolveLatestSnapshotBuildNumber( artifact, localRepository, remoteRepository );
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101 snapshot.setBuildNumber( buildNumber + 1 );
102 }
103 catch ( RepositoryMetadataResolutionException e )
104 {
105 throw new ArtifactDeploymentException( "Error retrieving previous build number for artifact '"
106 + artifact.getDependencyConflictId() + "': " + e.getMessage(), e );
107 }
108
109 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact, snapshot );
110
111 artifact.setResolvedVersion(
112 constructVersion( metadata.getMetadata().getVersioning(), artifact.getBaseVersion() ) );
113
114 artifact.addMetadata( metadata );
115 }
116 }
117
118 public String getDeploymentTimestamp()
119 {
120 if ( deploymentTimestamp == null )
121 {
122 deploymentTimestamp = getUtcDateFormatter().format( new Date() );
123 }
124 return deploymentTimestamp;
125 }
126
127 protected String constructVersion( Versioning versioning, String baseVersion )
128 {
129 String version = null;
130 Snapshot snapshot = versioning.getSnapshot();
131 if ( snapshot != null )
132 {
133 if ( snapshot.getTimestamp() != null && snapshot.getBuildNumber() > 0 )
134 {
135 String newVersion = snapshot.getTimestamp() + "-" + snapshot.getBuildNumber();
136 version = StringUtils.replace( baseVersion, Artifact.SNAPSHOT_VERSION, newVersion );
137 }
138 else
139 {
140 version = baseVersion;
141 }
142 }
143 return version;
144 }
145
146 private int resolveLatestSnapshotBuildNumber( Artifact artifact, ArtifactRepository localRepository,
147 ArtifactRepository remoteRepository )
148 throws RepositoryMetadataResolutionException
149 {
150 RepositoryMetadata metadata = new SnapshotArtifactRepositoryMetadata( artifact );
151
152 getLogger().info( "Retrieving previous build number from " + remoteRepository.getId() );
153 repositoryMetadataManager.resolveAlways( metadata, localRepository, remoteRepository );
154
155 int buildNumber = 0;
156 Metadata repoMetadata = metadata.getMetadata();
157 if ( ( repoMetadata != null )
158 && ( repoMetadata.getVersioning() != null && repoMetadata.getVersioning().getSnapshot() != null ) )
159 {
160 buildNumber = repoMetadata.getVersioning().getSnapshot().getBuildNumber();
161 }
162 return buildNumber;
163 }
164
165 public static DateFormat getUtcDateFormatter()
166 {
167 DateFormat utcDateFormatter = new SimpleDateFormat( DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT );
168 utcDateFormatter.setCalendar( new GregorianCalendar() );
169 utcDateFormatter.setTimeZone( DEFAULT_SNAPSHOT_TIME_ZONE );
170 return utcDateFormatter;
171 }
172
173 }