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 java.util.ArrayList;
23 import java.util.Collections;
24 import java.util.List;
25
26 import javax.inject.Named;
27 import javax.inject.Singleton;
28
29 import org.apache.maven.execution.MavenSession;
30 import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
31 import org.apache.maven.project.MavenProject;
32
33 /**
34 * <strong>NOTE:</strong> This class is not part of any public api and can be changed or deleted without prior notice.
35 *
36 * @since 3.0
37 * @author Kristian Rosenvold
38 */
39 @Named
40 @Singleton
41 public class BuildListCalculator
42 {
43 public ProjectBuildList calculateProjectBuilds( MavenSession session, List<TaskSegment> taskSegments )
44 {
45 List<ProjectSegment> projectBuilds = new ArrayList<>();
46
47 MavenProject rootProject = session.getTopLevelProject();
48
49 for ( TaskSegment taskSegment : taskSegments )
50 {
51 List<MavenProject> projects;
52
53 if ( taskSegment.isAggregating() )
54 {
55 projects = Collections.singletonList( rootProject );
56 }
57 else
58 {
59 projects = session.getProjects();
60 }
61 for ( MavenProject project : projects )
62 {
63 ClassLoader tccl = Thread.currentThread().getContextClassLoader();
64 MavenProject currentProject = session.getCurrentProject();
65 try
66 {
67 BuilderCommon.attachToThread( project ); // Not totally sure if this is needed for anything
68 session.setCurrentProject( project );
69 projectBuilds.add( new ProjectSegment( project, taskSegment, session ) );
70 }
71 finally
72 {
73 session.setCurrentProject( currentProject );
74 Thread.currentThread().setContextClassLoader( tccl );
75 }
76 }
77 }
78 return new ProjectBuildList( projectBuilds );
79 }
80 }