1 package org.apache.maven.shared.mapping;
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 java.util.Properties;
23
24 import org.codehaus.plexus.interpolation.PropertiesBasedValueSource;
25
26 /**
27 * This is a ValueSource, that can be used in an Interpolator. It supports
28 * special expressions, like <code>dashClassifier</code> and
29 * <code>dashClassifier?</code>.
30 *
31 * @version $Id: DashClassifierValueSource.java 1512265 2013-08-09 11:38:38Z dennisl $
32 */
33 public class DashClassifierValueSource
34 extends PropertiesBasedValueSource
35 {
36 /**
37 * Create the ValueSource.
38 *
39 * @param classifier The classifier that should be used during interpolation
40 */
41 public DashClassifierValueSource( String classifier )
42 {
43 super( createDashClassifierProperties( classifier ) );
44 }
45
46 private static Properties createDashClassifierProperties( String classifier )
47 {
48 Properties classifierMask = new Properties();
49
50 if ( classifier != null )
51 {
52 classifierMask.setProperty( "dashClassifier?", "-" + classifier );
53 classifierMask.setProperty( "dashClassifier", "-" + classifier );
54 }
55 else
56 {
57 classifierMask.setProperty( "dashClassifier?", "" );
58 classifierMask.setProperty( "dashClassifier", "" );
59 // Make sure that the classifier property is usable, if it is null
60 classifierMask.setProperty( "classifier", "" );
61 }
62 return classifierMask;
63 }
64 }