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.repository.legacy.resolver.conflict;
20
21 import javax.inject.Named;
22 import javax.inject.Singleton;
23
24 import org.apache.maven.artifact.resolver.ResolutionNode;
25
26 /**
27 * Resolves conflicting artifacts by always selecting the <em>nearest</em> declaration. Nearest is defined as the
28 * declaration that has the least transitive steps away from the project being built.
29 *
30 * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
31 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
32 * @since 3.0
33 */
34 @Named("nearest")
35 @Singleton
36 public class NearestConflictResolver implements ConflictResolver {
37 // ConflictResolver methods -----------------------------------------------
38
39 /*
40 * @see org.apache.maven.artifact.resolver.conflict.ConflictResolver#resolveConflict(org.apache.maven.artifact.resolver.ResolutionNode,
41 * org.apache.maven.artifact.resolver.ResolutionNode)
42 */
43
44 public ResolutionNode resolveConflict(ResolutionNode node1, ResolutionNode node2) {
45 return node1.getDepth() <= node2.getDepth() ? node1 : node2;
46 }
47 }