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 javax.inject.Named;
22 import javax.inject.Singleton;
23
24 import java.util.concurrent.atomic.AtomicReference;
25
26 import org.apache.maven.execution.MavenSession;
27 import org.apache.maven.plugin.LegacySupport;
28 import org.eclipse.aether.RepositorySystemSession;
29
30 /**
31 * Helps to provide backward-compatibility with plugins that use legacy components. <strong>Warning:</strong> This is an
32 * internal utility component that is only public for technical reasons, it is not part of the public API. In
33 * particular, this component can be changed or deleted without prior notice.
34 *
35 * @since 3.0
36 * @author Benjamin Bentmann
37 */
38 @Named
39 @Singleton
40 public class DefaultLegacySupport implements LegacySupport {
41
42 private static final ThreadLocal<AtomicReference<MavenSession>> SESSION = new InheritableThreadLocal<>();
43
44 public void setSession(MavenSession session) {
45 AtomicReference<MavenSession> reference = DefaultLegacySupport.SESSION.get();
46 if (reference != null) {
47 reference.set(null);
48 }
49
50 if (session == null && reference != null) {
51 DefaultLegacySupport.SESSION.remove();
52 } else {
53 DefaultLegacySupport.SESSION.set(new AtomicReference<>(session));
54 }
55 }
56
57 public MavenSession getSession() {
58 AtomicReference<MavenSession> currentSession = DefaultLegacySupport.SESSION.get();
59 return currentSession != null ? currentSession.get() : null;
60 }
61
62 public RepositorySystemSession getRepositorySession() {
63 MavenSession session = getSession();
64 return (session != null) ? session.getRepositorySession() : null;
65 }
66 }