package org.apache.maven.project.interpolation;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *  http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import org.apache.maven.project.path.PathTranslator;

 import org.codehaus.plexus.interpolation.InterpolationPostProcessor;

 import org.codehaus.plexus.interpolation.util.ValueSourceUtils;

 import java.io.File;

 import java.util.List;

 /**

  * 

  * @version $Id: PathTranslatingPostProcessor.java 767323 2009-04-21 22:53:31Z jdcasey $

  */

 public class PathTranslatingPostProcessor

     implements InterpolationPostProcessor

 {

     private final List<String> unprefixedPathKeys;

     private final File projectDir;

     private final PathTranslator pathTranslator;

     private final List<String> expressionPrefixes;

     public PathTranslatingPostProcessor( List<String> expressionPrefixes, List<String> unprefixedPathKeys, File projectDir, PathTranslator pathTranslator )

     {

         this.expressionPrefixes = expressionPrefixes;

         this.unprefixedPathKeys = unprefixedPathKeys;

         this.projectDir = projectDir;

         this.pathTranslator = pathTranslator;

     }

     public Object execute( String expression,

                                       Object value )

     {

         expression = ValueSourceUtils.trimPrefix( expression, expressionPrefixes, true );

         if ( projectDir != null && value != null && unprefixedPathKeys.contains( expression ) )

         {

             return pathTranslator.alignToBaseDirectory( String.valueOf( value ), projectDir );

         }

         return value;

     }

 }