1 package org.apache.maven.archiva.repository.metadata;
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22 import org.apache.commons.collections.CollectionUtils;
23 import org.apache.commons.io.IOUtils;
24 import org.apache.commons.lang.StringUtils;
25 import org.apache.maven.archiva.model.ArchivaRepositoryMetadata;
26 import org.apache.maven.archiva.model.Plugin;
27 import org.apache.maven.archiva.xml.XMLException;
28 import org.apache.maven.archiva.xml.XMLWriter;
29 import org.dom4j.Document;
30 import org.dom4j.DocumentHelper;
31 import org.dom4j.Element;
32
33 import java.io.File;
34 import java.io.FileWriter;
35 import java.io.IOException;
36 import java.io.Writer;
37 import java.util.Iterator;
38 import java.util.List;
39 import org.apache.commons.io.FileUtils;
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46 public class RepositoryMetadataWriter
47 {
48 public static void write( ArchivaRepositoryMetadata metadata, File outputFile )
49 throws RepositoryMetadataException
50 {
51 boolean thrown = false;
52 FileWriter writer = null;
53 try
54 {
55 writer = new FileWriter( outputFile );
56 write( metadata, writer );
57 writer.flush();
58 }
59 catch ( IOException e )
60 {
61 thrown = true;
62 throw new RepositoryMetadataException( "Unable to write metadata file: " + outputFile.getAbsolutePath()
63 + " - " + e.getMessage(), e );
64 }
65 finally
66 {
67 IOUtils.closeQuietly( writer );
68 if (thrown)
69 {
70 FileUtils.deleteQuietly(outputFile);
71 }
72 }
73 }
74
75 public static void write( ArchivaRepositoryMetadata metadata, Writer writer )
76 throws RepositoryMetadataException
77 {
78 Document doc = DocumentHelper.createDocument();
79
80 Element root = DocumentHelper.createElement( "metadata" );
81 doc.setRootElement( root );
82
83 addOptionalElementText( root, "groupId", metadata.getGroupId());
84 addOptionalElementText( root, "artifactId", metadata.getArtifactId() );
85 addOptionalElementText( root, "version", metadata.getVersion() );
86
87 if ( CollectionUtils.isNotEmpty( metadata.getPlugins() ) )
88 {
89 Element plugins = root.addElement( "plugins" );
90 for ( Plugin plugin : (List<Plugin>)metadata.getPlugins() )
91 {
92 Element p = plugins.addElement( "plugin" );
93 p.addElement( "prefix" ).setText( plugin.getPrefix() );
94 p.addElement( "artifactId" ).setText( plugin.getArtifactId() );
95 addOptionalElementText( p, "name", plugin.getName() );
96 }
97 }
98
99 if ( CollectionUtils.isNotEmpty( metadata.getAvailableVersions() )
100 || StringUtils.isNotBlank( metadata.getReleasedVersion() )
101 || StringUtils.isNotBlank( metadata.getLatestVersion() )
102 || StringUtils.isNotBlank( metadata.getLastUpdated() ) || ( metadata.getSnapshotVersion() != null ) )
103 {
104 Element versioning = root.addElement( "versioning" );
105
106 addOptionalElementText( versioning, "latest", metadata.getLatestVersion() );
107 addOptionalElementText( versioning, "release", metadata.getReleasedVersion() );
108
109 if ( metadata.getSnapshotVersion() != null )
110 {
111 Element snapshot = versioning.addElement( "snapshot" );
112 String bnum = String.valueOf( metadata.getSnapshotVersion().getBuildNumber() );
113 addOptionalElementText( snapshot, "buildNumber", bnum );
114 addOptionalElementText( snapshot, "timestamp", metadata.getSnapshotVersion().getTimestamp() );
115 }
116
117 if ( CollectionUtils.isNotEmpty( metadata.getAvailableVersions() ) )
118 {
119 Element versions = versioning.addElement( "versions" );
120 Iterator<String> it = metadata.getAvailableVersions().iterator();
121 while ( it.hasNext() )
122 {
123 String version = (String) it.next();
124 versions.addElement( "version" ).setText( version );
125 }
126 }
127
128 addOptionalElementText( versioning, "lastUpdated", metadata.getLastUpdated() );
129 }
130
131 try
132 {
133 XMLWriter.write( doc, writer );
134 }
135 catch ( XMLException e )
136 {
137 throw new RepositoryMetadataException( "Unable to write xml contents to writer: " + e.getMessage(), e );
138 }
139 }
140
141 private static void addOptionalElementText( Element elem, String elemName, String text )
142 {
143 if ( StringUtils.isBlank( text ) )
144 {
145 return;
146 }
147
148 elem.addElement( elemName ).setText( text );
149 }
150 }