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 org.apache.tools.ant.util.FileNameMapper;
23 import org.codehaus.plexus.util.StringUtils;
24
25 import java.io.File;
26 import java.util.Arrays;
27 import java.util.Comparator;
28 import java.util.List;
29
30 /**
31 * Ant filename mapper to remove version info from filename when copying dependencies.
32 *
33 * @author <a href="mailto:hboutemy@apache.org">Herve Boutemy</a>
34 */
35 public class VersionMapper
36 implements FileNameMapper, Comparator<String>
37 {
38 private List<String> versions;
39
40 private String to;
41
42 /** {@inheritDoc} */
43 @Override
44 public String[] mapFileName( String sourceFileName )
45 {
46 String originalFileName = new File( sourceFileName ).getName();
47 for ( String version : versions )
48 {
49 int index = originalFileName.indexOf( version );
50 if ( index >= 0 )
51 {
52 // remove version in artifactId-version(-classifier).type
53 String baseFilename = originalFileName.substring( 0, index - 1 );
54 String extension = originalFileName.substring( index + version.length() );
55 String path = sourceFileName.substring( 0, sourceFileName.length() - originalFileName.length() );
56 if ( "flatten".equals( to ) )
57 {
58 path = "";
59 }
60 return new String[]{ path + baseFilename + extension };
61 }
62 }
63 return new String[]{ sourceFileName };
64 }
65
66 /**
67 * Set the versions identifiers that this mapper can remove from filenames. The separator value used is path
68 * separator, as used by dependencies task when setting <code>versionsId</code> property value.
69 * @param from The string from which we set.
70 */
71 @Override
72 public void setFrom( String from )
73 {
74 String[] split = StringUtils.split( from, File.pathSeparator );
75 // sort, from lengthiest to smallest
76 Arrays.sort( split, this );
77 versions = Arrays.asList( split );
78 }
79
80 /**
81 * By default, only filename is changed, but if this attribute is set to <code>flatten</code>, directory is removed.
82 * @param to {@link #to}
83 */
84 @Override
85 public void setTo( String to )
86 {
87 this.to = to;
88 }
89
90 /** {@inheritDoc} */
91 @Override
92 public int compare( String s1, String s2 )
93 {
94 int lengthDiff = s2.length() - s1.length();
95 return ( lengthDiff != 0 ) ? lengthDiff : s1.compareTo( s2 );
96 }
97 }