001    package org.apache.maven.repository.legacy.resolver.conflict;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *  http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.maven.artifact.resolver.ResolutionNode;
023    import org.codehaus.plexus.component.annotations.Component;
024    
025    /**
026     * Resolves conflicting artifacts by always selecting the <em>farthest</em> declaration. Farthest is defined as the
027     * declaration that has the most transitive steps away from the project being built.
028     *
029     * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
030     * @since 3.0
031     */
032    @Component( role = ConflictResolver.class, hint = "farthest" )
033    public class FarthestConflictResolver
034        implements ConflictResolver
035    {
036        // ConflictResolver methods -----------------------------------------------
037    
038        /*
039        * @see org.apache.maven.artifact.resolver.conflict.ConflictResolver#resolveConflict(org.apache.maven.artifact.resolver.ResolutionNode,
040        *      org.apache.maven.artifact.resolver.ResolutionNode)
041        */
042    
043        public ResolutionNode resolveConflict( ResolutionNode node1, ResolutionNode node2 )
044        {
045            return node1.getDepth() >= node2.getDepth() ? node1 : node2;
046        }
047    }