1 package org.apache.maven.ant.tasks.support;
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.File;
23 import java.util.Arrays;
24 import java.util.Comparator;
25 import java.util.Iterator;
26 import java.util.List;
27
28 import org.apache.tools.ant.util.FileNameMapper;
29 import org.codehaus.plexus.util.StringUtils;
30
31 /**
32 * Ant filename mapper to remove version info from filename when copying dependencies.
33 *
34 * @author <a href="mailto:hboutemy@apache.org">Herve Boutemy</a>
35 * @version $Id: VersionMapper.html 816173 2012-05-06 22:12:29Z hboutemy $
36 */
37 public class VersionMapper
38 implements FileNameMapper, Comparator
39 {
40 private List versions;
41
42 private String to;
43
44 public String[] mapFileName( String sourceFileName )
45 {
46 String originalFileName = new File( sourceFileName ).getName();
47 for ( Iterator iter = versions.iterator(); iter.hasNext(); )
48 {
49 String version = (String) iter.next();
50 int index = originalFileName.indexOf( version );
51 if ( index >= 0 )
52 {
53 // remove version in artifactId-version(-classifier).type
54 String baseFilename = originalFileName.substring( 0, index - 1 );
55 String extension = originalFileName.substring( index + version.length() );
56 String path = sourceFileName.substring( 0, sourceFileName.length() - originalFileName.length() );
57 if ( "flatten".equals( to ) )
58 {
59 path = "";
60 }
61 return new String[] { path + baseFilename + extension };
62 }
63 }
64 return new String[] { sourceFileName };
65 }
66
67 /**
68 * Set the versions identifiers that this mapper can remove from filenames. The separator value used is path
69 * separator, as used by dependencies task when setting <code>versionsId</code> property value.
70 */
71 public void setFrom( String from )
72 {
73 String[] split = StringUtils.split( from, File.pathSeparator );
74 // sort, from lengthiest to smallest
75 Arrays.sort( split, this );
76 versions = Arrays.asList( split );
77 }
78
79 /**
80 * By default, only filename is changed, but if this attribute is set to <code>flatten</code>, directory is removed.
81 */
82 public void setTo( String to )
83 {
84 this.to = to;
85 }
86
87 public int compare( Object o1, Object o2 )
88 {
89 String s1 = (String) o1;
90 String s2 = (String) o2;
91 int lengthDiff = s2.length() - s1.length();
92 return ( lengthDiff != 0 ) ? lengthDiff : s1.compareTo( s2 );
93 }
94 }