1 package org.apache.maven.plugin.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.concurrent.atomic.AtomicReference;
23 import org.apache.maven.execution.MavenSession;
24 import org.apache.maven.plugin.LegacySupport;
25 import org.codehaus.plexus.component.annotations.Component;
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 @Component( role = LegacySupport.class )
37 public class DefaultLegacySupport
38 implements LegacySupport
39 {
40
41 private static final ThreadLocal<AtomicReference<MavenSession>> SESSION =
42 new InheritableThreadLocal<>();
43
44 public void setSession( MavenSession session )
45 {
46 AtomicReference<MavenSession> reference = DefaultLegacySupport.SESSION.get();
47 if ( reference != null )
48 {
49 reference.set( null );
50 }
51
52 if ( session == null && reference != null )
53 {
54 DefaultLegacySupport.SESSION.remove();
55 }
56 else
57 {
58 DefaultLegacySupport.SESSION.set( new AtomicReference<>( session ) );
59 }
60 }
61
62 public MavenSession getSession()
63 {
64 AtomicReference<MavenSession> currentSession = DefaultLegacySupport.SESSION.get();
65 return currentSession != null ? currentSession.get() : null;
66 }
67
68 public RepositorySystemSession getRepositorySession()
69 {
70 MavenSession session = getSession();
71 return ( session != null ) ? session.getRepositorySession() : null;
72 }
73
74 }