View Javadoc

1   package org.apache.maven.project.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.project.path.PathTranslator;
23  import org.codehaus.plexus.interpolation.AbstractFunctionValueSourceWrapper;
24  import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
25  import org.codehaus.plexus.interpolation.ValueSource;
26  import org.codehaus.plexus.interpolation.util.ValueSourceUtils;
27  
28  import java.io.File;
29  import java.util.List;
30  
31  /**
32   * 
33   * @version $Id: PathTranslatingPostProcessor.java 708543 2008-10-28 11:54:17Z bentmann $
34   */
35  public class PathTranslatingPostProcessor
36      implements InterpolationPostProcessor
37  {
38  
39      private final List unprefixedPathKeys;
40      private final File projectDir;
41      private final PathTranslator pathTranslator;
42      private final List expressionPrefixes;
43  
44      public PathTranslatingPostProcessor( List expressionPrefixes, List unprefixedPathKeys, File projectDir, PathTranslator pathTranslator )
45      {
46          this.expressionPrefixes = expressionPrefixes;
47          this.unprefixedPathKeys = unprefixedPathKeys;
48          this.projectDir = projectDir;
49          this.pathTranslator = pathTranslator;
50      }
51  
52      public Object execute( String expression,
53                                        Object value )
54      {
55          expression = ValueSourceUtils.trimPrefix( expression, expressionPrefixes, true );
56          
57          if ( projectDir != null && value != null && unprefixedPathKeys.contains( expression ) )
58          {
59              return pathTranslator.alignToBaseDirectory( String.valueOf( value ), projectDir );
60          }
61  
62          return value;
63      }
64  
65  }