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 import java.util.Map;
23
24 import org.eclipse.aether.SystemScopeHandler;
25 import org.eclipse.aether.collection.DependencyCollectionContext;
26 import org.eclipse.aether.collection.DependencyManager;
27 import org.eclipse.aether.graph.Exclusion;
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 */
34 public final class ClassicDependencyManager extends AbstractDependencyManager {
35 /**
36 * Creates a new dependency manager without any management information.
37 *
38 * @deprecated Use constructor that provides consumer application specific predicate.
39 */
40 @Deprecated
41 public ClassicDependencyManager() {
42 this(SYSTEM_SCOPE_HANDLER);
43 }
44
45 public ClassicDependencyManager(SystemScopeHandler systemScopeHandler) {
46 this(false, systemScopeHandler);
47 }
48
49 /**
50 * Creates a new dependency manager without any management information.
51 *
52 * @param transitive If true, this manager will collect (derive) until last node on graph. If false,
53 * it will work as original Maven 3 "classic" dependency manager, collect only up to
54 * depth of 2.
55 *
56 * @since 2.0.0
57 */
58 public ClassicDependencyManager(boolean transitive, SystemScopeHandler systemScopeHandler) {
59 super(transitive ? Integer.MAX_VALUE : 2, 2, systemScopeHandler);
60 }
61
62 @SuppressWarnings("checkstyle:ParameterNumber")
63 private ClassicDependencyManager(
64 int depth,
65 int deriveUntil,
66 int applyFrom,
67 Map<Object, String> managedVersions,
68 Map<Object, String> managedScopes,
69 Map<Object, Boolean> managedOptionals,
70 Map<Object, String> managedLocalPaths,
71 Map<Object, Collection<Exclusion>> managedExclusions,
72 SystemScopeHandler systemScopeHandler) {
73 super(
74 depth,
75 deriveUntil,
76 applyFrom,
77 managedVersions,
78 managedScopes,
79 managedOptionals,
80 managedLocalPaths,
81 managedExclusions,
82 systemScopeHandler);
83 }
84
85 @Override
86 public DependencyManager deriveChildManager(DependencyCollectionContext context) {
87 // MNG-4720: Maven2 backward compatibility
88 // Removing this IF makes one IT fail here (read comment above):
89 // https://github.com/apache/maven-integration-testing/blob/b4e8fd52b99a058336f9c7c5ec44fdbc1427759c/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4720DependencyManagementExclusionMergeTest.java#L67
90 if (depth == 1) {
91 return newInstance(managedVersions, managedScopes, managedOptionals, managedLocalPaths, managedExclusions);
92 }
93 return super.deriveChildManager(context);
94 }
95
96 @Override
97 protected DependencyManager newInstance(
98 Map<Object, String> managedVersions,
99 Map<Object, String> managedScopes,
100 Map<Object, Boolean> managedOptionals,
101 Map<Object, String> managedLocalPaths,
102 Map<Object, Collection<Exclusion>> managedExclusions) {
103 return new ClassicDependencyManager(
104 depth + 1,
105 deriveUntil,
106 applyFrom,
107 managedVersions,
108 managedScopes,
109 managedOptionals,
110 managedLocalPaths,
111 managedExclusions,
112 systemScopeHandler);
113 }
114 }