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.eclipse.aether.util.graph.manager;
20
21 import java.util.Collection;
22
23 import org.eclipse.aether.collection.DependencyCollectionContext;
24 import org.eclipse.aether.collection.DependencyManager;
25 import org.eclipse.aether.graph.Exclusion;
26 import org.eclipse.aether.scope.ScopeManager;
27 import org.eclipse.aether.scope.SystemDependencyScope;
28
29 /**
30 * A dependency manager that mimics the way Maven 2.x works. This manager was used throughout all Maven 3.x versions.
31 * <p>
32 * This manager has {@code deriveUntil=2} and {@code applyFrom=2}.
33 * <p>
34 * Note regarding transitivity: it is broken, and should not be used.
35 */
36 public final class ClassicDependencyManager extends AbstractDependencyManager {
37 /**
38 * Creates a new dependency manager without any management information.
39 *
40 * @deprecated Use constructor that provides consumer application specific predicate.
41 */
42 @Deprecated
43 public ClassicDependencyManager() {
44 this(null);
45 }
46
47 public ClassicDependencyManager(ScopeManager scopeManager) {
48 this(false, scopeManager);
49 }
50
51 /**
52 * Creates a new dependency manager without any management information.
53 *
54 * @param transitive If true, this manager will collect (derive) until last node on graph. If false,
55 * it will work as original Maven 3 "classic" dependency manager, collect only up to
56 * depth of 2.
57 *
58 * @since 2.0.0
59 */
60 public ClassicDependencyManager(boolean transitive, ScopeManager scopeManager) {
61 super(transitive ? Integer.MAX_VALUE : 2, 2, scopeManager);
62 }
63
64 @SuppressWarnings("checkstyle:ParameterNumber")
65 private ClassicDependencyManager(
66 int depth,
67 int deriveUntil,
68 int applyFrom,
69 MMap<Key, Holder<String>> managedVersions,
70 MMap<Key, Holder<String>> managedScopes,
71 MMap<Key, Holder<Boolean>> managedOptionals,
72 MMap<Key, Holder<String>> managedLocalPaths,
73 MMap<Key, Collection<Holder<Collection<Exclusion>>>> managedExclusions,
74 SystemDependencyScope systemDependencyScope) {
75 super(
76 depth,
77 deriveUntil,
78 applyFrom,
79 managedVersions,
80 managedScopes,
81 managedOptionals,
82 managedLocalPaths,
83 managedExclusions,
84 systemDependencyScope);
85 }
86
87 @Override
88 public DependencyManager deriveChildManager(DependencyCollectionContext context) {
89 // MNG-4720: Maven2 backward compatibility
90 // Removing this IF makes one IT fail here (read comment above):
91 // https://github.com/apache/maven-integration-testing/blob/b4e8fd52b99a058336f9c7c5ec44fdbc1427759c/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4720DependencyManagementExclusionMergeTest.java#L67
92 if (depth == 1) {
93 return newInstance(managedVersions, managedScopes, managedOptionals, managedLocalPaths, managedExclusions);
94 }
95 return super.deriveChildManager(context);
96 }
97
98 @Override
99 protected DependencyManager newInstance(
100 MMap<Key, Holder<String>> managedVersions,
101 MMap<Key, Holder<String>> managedScopes,
102 MMap<Key, Holder<Boolean>> managedOptionals,
103 MMap<Key, Holder<String>> managedLocalPaths,
104 MMap<Key, Collection<Holder<Collection<Exclusion>>>> managedExclusions) {
105 return new ClassicDependencyManager(
106 depth + 1,
107 deriveUntil,
108 applyFrom,
109 managedVersions,
110 managedScopes,
111 managedOptionals,
112 managedLocalPaths,
113 managedExclusions,
114 systemDependencyScope);
115 }
116 }