1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.plugin.internal;
20
21 import java.util.concurrent.atomic.AtomicReference;
22 import javax.inject.Named;
23 import javax.inject.Singleton;
24 import org.apache.maven.execution.MavenSession;
25 import org.apache.maven.plugin.LegacySupport;
26 import org.eclipse.aether.RepositorySystemSession;
27
28 /**
29 * Helps to provide backward-compatibility with plugins that use legacy components. <strong>Warning:</strong> This is an
30 * internal utility component that is only public for technical reasons, it is not part of the public API. In
31 * particular, this component can be changed or deleted without prior notice.
32 *
33 * @since 3.0
34 * @author Benjamin Bentmann
35 */
36 @Named
37 @Singleton
38 public class DefaultLegacySupport implements LegacySupport {
39
40 private static final ThreadLocal<AtomicReference<MavenSession>> SESSION = new InheritableThreadLocal<>();
41
42 public void setSession(MavenSession session) {
43 AtomicReference<MavenSession> reference = DefaultLegacySupport.SESSION.get();
44 if (reference != null) {
45 reference.set(null);
46 }
47
48 if (session == null && reference != null) {
49 DefaultLegacySupport.SESSION.remove();
50 } else {
51 DefaultLegacySupport.SESSION.set(new AtomicReference<>(session));
52 }
53 }
54
55 public MavenSession getSession() {
56 AtomicReference<MavenSession> currentSession = DefaultLegacySupport.SESSION.get();
57 return currentSession != null ? currentSession.get() : null;
58 }
59
60 public RepositorySystemSession getRepositorySession() {
61 MavenSession session = getSession();
62 return (session != null) ? session.getRepositorySession() : null;
63 }
64 }