View Javadoc
1   package org.apache.maven.model.interpolation;
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.model.path.PathTranslator;
23  import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
24  import org.codehaus.plexus.interpolation.util.ValueSourceUtils;
25  
26  import java.io.File;
27  import java.util.Collection;
28  import java.util.List;
29  
30  /**
31   *
32   */
33  class PathTranslatingPostProcessor
34      implements InterpolationPostProcessor
35  {
36  
37      private final Collection<String> unprefixedPathKeys;
38      private final File projectDir;
39      private final PathTranslator pathTranslator;
40      private final List<String> expressionPrefixes;
41  
42      public PathTranslatingPostProcessor( List<String> expressionPrefixes, Collection<String> unprefixedPathKeys,
43                                           File projectDir, PathTranslator pathTranslator )
44      {
45          this.expressionPrefixes = expressionPrefixes;
46          this.unprefixedPathKeys = unprefixedPathKeys;
47          this.projectDir = projectDir;
48          this.pathTranslator = pathTranslator;
49      }
50  
51      public Object execute( String expression, Object value )
52      {
53          if ( value != null )
54          {
55              expression = ValueSourceUtils.trimPrefix( expression, expressionPrefixes, true );
56  
57              if ( unprefixedPathKeys.contains( expression ) )
58              {
59                  return pathTranslator.alignToBaseDirectory( String.valueOf( value ), projectDir );
60              }
61          }
62  
63          return null;
64      }
65  
66  }