1 package org.apache.maven.lifecycle.internal;
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.lifecycle.internal.builder.BuilderCommon;
23 import org.apache.maven.project.MavenProject;
24
25 import java.util.HashMap;
26 import java.util.List;
27 import java.util.Map;
28
29 /**
30 * Provides the positional index of the project
31 *
32 * @since 3.0
33 * @author Benjamin Bentmann
34 * @author Kristian Rosenvold (extracted class only)
35 * <p/>
36 * NOTE: This class is not part of any public api and can be changed or deleted without prior notice.
37 */
38 // Todo: Kristian wonders if this class really is necessary and if it overlaps other concepts.
39 public final class ProjectIndex
40 {
41
42 private final Map<String, MavenProject> projects;
43
44 private final Map<String, Integer> indices;
45
46 public ProjectIndex( List<MavenProject> projects )
47 {
48 this.projects = new HashMap<>( projects.size() * 2 );
49 this.indices = new HashMap<>( projects.size() * 2 );
50
51 for ( int i = 0; i < projects.size(); i++ )
52 {
53 MavenProject project = projects.get( i );
54 String key = BuilderCommon.getKey( project );
55
56 this.getProjects().put( key, project );
57 this.getIndices().put( key, i );
58 }
59 }
60
61 public Map<String, MavenProject> getProjects()
62 {
63 return projects;
64 }
65
66 public Map<String, Integer> getIndices()
67 {
68 return indices;
69 }
70 }