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1   package org.apache.maven.plugin.assembly.io;
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.maven.shared.io.location.ClasspathResourceLocatorStrategy;
23  import org.apache.maven.shared.io.location.Location;
24  import org.apache.maven.shared.io.logging.MessageHolder;
25  
26  /**
27   * @version $Id: PrefixedClasspathLocatorStrategy.java 887583 2009-12-05 19:43:54Z bentmann $
28   */
29  public class PrefixedClasspathLocatorStrategy
30      extends ClasspathResourceLocatorStrategy
31  {
32  
33      private final String prefix;
34  
35      public PrefixedClasspathLocatorStrategy( String prefix )
36      {
37          this.prefix = formatPrefix( prefix );
38      }
39  
40      private String formatPrefix( String prefix )
41      {
42          if ( prefix.startsWith( "/" ) )
43          {
44              prefix = prefix.substring( 1 );
45          }
46  
47          if ( prefix.length() > 0 && !prefix.endsWith( "/" ) )
48          {
49              prefix += "/";
50          }
51  
52          return prefix;
53      }
54  
55      public Location resolve( String locationSpecification, MessageHolder messageHolder )
56      {
57          String spec = formatLocation( locationSpecification );
58  
59          return super.resolve( spec, messageHolder );
60      }
61  
62      private String formatLocation( String location )
63      {
64          if ( location.startsWith( "/" ) )
65          {
66              location = location.substring( 1 );
67          }
68  
69          return prefix + location;
70      }
71  
72  }