1 package org.apache.maven.repository.legacy.resolver.conflict;
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 org.apache.maven.artifact.resolver.ResolutionNode;
23 import org.codehaus.plexus.component.annotations.Component;
24
25 /**
26 * Resolves conflicting artifacts by always selecting the <em>nearest</em> declaration. Nearest is defined as the
27 * declaration that has the least transitive steps away from the project being built.
28 *
29 * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
30 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
31 * @since 3.0
32 */
33 @Component( role = ConflictResolver.class, hint = "nearest" )
34 public class NearestConflictResolver
35 implements ConflictResolver
36 {
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 {
46 return node1.getDepth() <= node2.getDepth() ? node1 : node2;
47 }
48 }