1 package org.apache.maven.artifact.ant.util;
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.Hashtable;
23 import java.util.Map;
24
25 import org.apache.tools.ant.Project;
26
27 /**
28 * Utility stuff for dealing with Ant.
29 */
30 public class AntUtil
31 {
32
33 /**
34 * Copies all properties from the given project to the new project - omitting those that have already been set in the
35 * new project as well as properties named basedir or ant.file.
36 *
37 * @param fromProject copy from
38 * @param toProject copy to
39 */
40 public static void copyProperties( Project fromProject, Project toProject )
41 {
42 copyProperties( fromProject.getProperties(), toProject );
43 }
44
45 /**
46 * Copies all properties from the given table to the new project - omitting those that have already been set in the
47 * new project as well as properties named basedir or ant.file.
48 *
49 * @param props properties <code>Hashtable</code> to copy to the new project.
50 * @param project the project where the properties are added
51 */
52 public static void copyProperties( Hashtable<String,String> props, Project project )
53 {
54 for ( Map.Entry<String, String> entry : props.entrySet() )
55 {
56 String key = entry.getKey();
57 if ( "basedir".equals( key ) || "ant.file".equals( key ) )
58 {
59 // basedir and ant.file get special treatment in execute()
60 continue;
61 }
62
63 // don't re-set user properties, avoid the warning message
64 if ( project.getProperty( key ) == null )
65 {
66 // no user property
67 project.setNewProperty( key, entry.getValue() );
68 }
69 }
70 }
71
72 /**
73 * Copy references from one project to another.
74 *
75 * @param fromProject
76 * @param toProject
77 */
78 public static void copyReferences( Project fromProject, Project toProject )
79 {
80 copyReferences( fromProject.getReferences(), toProject );
81 }
82
83 /**
84 * Copy references from a hashtable to a project. Will not
85 * overwrite existing references.
86 *
87 * @param refs
88 * @param project
89 */
90 public static void copyReferences( Hashtable<String,String> refs, Project project )
91 {
92 for ( Map.Entry<String, String> entry : refs.entrySet() )
93 {
94 String key = entry.getKey();
95 // don't overwrite existing references
96 if ( project.getReference( key ) == null )
97 {
98 project.addReference( key, entry.getValue() );
99 }
100 }
101 }
102
103 }