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1   package org.apache.maven.plugin.dependency.utils;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   * http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.io.BufferedReader;
23  import java.io.File;
24  import java.io.FileWriter;
25  import java.io.IOException;
26  import java.io.StringReader;
27  
28  import org.apache.maven.artifact.Artifact;
29  import org.apache.maven.plugin.logging.Log;
30  import org.codehaus.plexus.util.IOUtil;
31  import org.codehaus.plexus.util.StringUtils;
32  
33  /**
34   * Utility class with static helper methods
35   * 
36   * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
37   * @version $Id: DependencyUtil.java 1399024 2012-10-16 22:23:33Z hboutemy $
38   */
39  public final class DependencyUtil
40  {
41  
42      /**
43       * Builds the file name. If removeVersion is set, then the file name must be reconstructed from the artifactId,
44       * Classifier (if used) and Type. Otherwise, this method returns the artifact file name.
45       * 
46       * @param artifact File to be formatted.
47       * @param removeVersion Specifies if the version should be removed from the file name.
48       * @return Formatted file name in the format artifactId-[version]-[classifier].[type]
49       * @see {@link #getFormattedFileName(Artifact, boolean, boolean)}.
50       */
51      public static String getFormattedFileName( Artifact artifact, boolean removeVersion )
52      {
53          return getFormattedFileName( artifact, removeVersion, false );
54      }
55  
56      /**
57       * Builds the file name. If removeVersion is set, then the file name must be
58       * reconstructed from the groupId (if <b>prependGroupId</b> is true) artifactId,
59       * Classifier (if used) and Type.
60       * Otherwise, this method returns the artifact file name.
61       * 
62       * @param artifact
63       *            File to be formatted.
64       * @param removeVersion
65       *            Specifies if the version should be removed from the file name.
66       * @param prependGroupId
67       *            Specifies if the groupId should be prepended to the file name.
68       * @return Formatted file name in the format
69       *         [groupId].artifactId-[version]-[classifier].[type]
70       */
71      public static String getFormattedFileName( Artifact artifact, boolean removeVersion, boolean prependGroupId )
72      {   
73          return getFormattedFileName( artifact, removeVersion, prependGroupId, false );
74      }
75  
76      /**
77       * Builds the file name. If removeVersion is set, then the file name must be
78       * reconstructed from the groupId (if <b>prependGroupId</b> is true) artifactId,
79       * Classifier (if used) and Type.
80       * Otherwise, this method returns the artifact file name.
81       * 
82       * @param artifact
83       *            File to be formatted.
84       * @param removeVersion
85       *            Specifies if the version should be removed from the file name.
86       * @param prependGroupId
87       *            Specifies if the groupId should be prepended to the file name.
88       * @param useBaseVersion
89       *            Specifies if the baseVersion of the artifact should be used instead of the version.
90       * @return Formatted file name in the format
91       *         [groupId].artifactId-[version]-[classifier].[type]
92       */
93      public static String getFormattedFileName( Artifact artifact, boolean removeVersion, boolean prependGroupId, 
94      		boolean useBaseVersion )
95      {
96          StringBuilder destFileName = new StringBuilder();
97          
98          if ( prependGroupId )
99          {
100             destFileName.append( artifact.getGroupId() ).append( "." );
101         }
102         
103         String versionString = null;
104         if ( !removeVersion )
105         {
106             if ( useBaseVersion )
107             {
108                 versionString = "-" + artifact.getBaseVersion();
109             }
110             else
111             {
112                 versionString = "-" + artifact.getVersion();
113             }
114         }
115         else
116         {
117             versionString = "";
118         }
119 
120         String classifierString = "";
121 
122         if ( StringUtils.isNotEmpty( artifact.getClassifier() ) )
123         {
124             classifierString = "-" + artifact.getClassifier();
125         }
126         destFileName.append( artifact.getArtifactId() ).append( versionString );
127         destFileName.append( classifierString ).append( "." );
128         destFileName.append( artifact.getArtifactHandler().getExtension() );
129         
130         return destFileName.toString();
131     }
132 
133     /**
134      * Formats the outputDirectory based on type.
135      * 
136      * @param useSubdirsPerType if a new sub directory should be used for each type.
137      * @param useSubdirPerArtifact if a new sub directory should be used for each artifact.
138      * @param useRepositoryLayout if dependencies must be moved into a Maven repository layout, if set, other settings
139      *            will be ignored.
140      * @param removeVersion if the version must not be mentioned in the filename
141      * @param outputDirectory base outputDirectory.
142      * @param artifact information about the artifact.
143      * @return a formatted File object to use for output.
144      */
145     public static File getFormattedOutputDirectory( boolean useSubdirsPerScope, boolean useSubdirsPerType,
146                                                     boolean useSubdirPerArtifact, boolean useRepositoryLayout,
147                                                     boolean removeVersion, File outputDirectory, Artifact artifact )
148     {
149         StringBuilder sb = new StringBuilder( 128 );
150         if ( useRepositoryLayout )
151         {
152             // group id
153             sb.append( artifact.getGroupId().replace( '.', File.separatorChar ) ).append( File.separatorChar );
154             // artifact id
155             sb.append( artifact.getArtifactId() ).append( File.separatorChar );
156             // version
157             sb.append( artifact.getBaseVersion() ).append( File.separatorChar );
158         }
159         else
160         {
161             if ( useSubdirsPerScope )
162             {
163                 sb.append( artifact.getScope() ).append( File.separatorChar );
164             }
165             if ( useSubdirsPerType )
166             {
167                 sb.append( artifact.getType() ).append( "s" ).append( File.separatorChar );
168             }
169             if ( useSubdirPerArtifact )
170             {
171                 String artifactString = getDependencyId( artifact, removeVersion );
172                 sb.append( artifactString ).append( File.separatorChar );
173             }
174         }
175         return new File( outputDirectory, sb.toString() );
176     }
177 
178     private static String getDependencyId( Artifact artifact, boolean removeVersion )
179     {
180         StringBuilder sb = new StringBuilder();
181 
182         sb.append( artifact.getArtifactId() );
183 
184         if ( StringUtils.isNotEmpty( artifact.getClassifier() ) )
185         {
186             sb.append( "-" );
187             sb.append( artifact.getClassifier() );
188         }
189 
190         if ( !removeVersion )
191         {
192             sb.append( "-" );
193             sb.append( artifact.getVersion() );
194             sb.append( "-" );
195             sb.append( artifact.getType() );
196         }
197         else
198         {
199             // if the classifier and type are the same (sources), then don't
200             // repeat.
201             // avoids names like foo-sources-sources
202             if ( !StringUtils.equals( artifact.getClassifier(), artifact.getType() ) )
203             {
204                 sb.append( "-" );
205                 sb.append( artifact.getType() );
206             }
207         }
208         return sb.toString();
209     }
210 
211     /**
212      * Writes the specified string to the specified file.
213      * 
214      * @param string the string to write
215      * @param file the file to write to
216      * @throws IOException if an I/O error occurs
217      */
218     public static synchronized void write( String string, File file, boolean append, Log log )
219         throws IOException
220     {
221         file.getParentFile().mkdirs();
222 
223         FileWriter writer = null;
224 
225         try
226         {
227             writer = new FileWriter( file, append );
228 
229             writer.write( string );
230         }
231         finally
232         {
233             IOUtil.close( writer );
234         }
235     }
236 
237     /**
238      * Writes the specified string to the log at info level.
239      * 
240      * @param string the string to write
241      * @throws IOException if an I/O error occurs
242      */
243     public static synchronized void log( String string, Log log )
244         throws IOException
245     {
246         BufferedReader reader = new BufferedReader( new StringReader( string ) );
247 
248         String line;
249 
250         while ( ( line = reader.readLine() ) != null )
251         {
252             log.info( line );
253         }
254 
255         reader.close();
256     }
257 
258     //
259     // mainly used to parse excludes,includes configuration
260     //
261     public static String[] tokenizer( String str )
262     {
263         return StringUtils.split( cleanToBeTokenizedString( str ), "," );
264     }
265 
266     //
267     // clean up configuration string before it can be tokenized
268     //
269     public static String cleanToBeTokenizedString( String str )
270     {
271         String ret = "";
272         if ( !StringUtils.isEmpty( str ) )
273         {
274             // remove initial and ending spaces, plus all spaces next to commas 
275             ret = str.trim().replaceAll( "[\\s]*,[\\s]*", "," );
276         }
277 
278         return ret;
279     }
280 }