| package org.apache.maven.plugin.internal; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import org.eclipse.aether.artifact.Artifact; |
| import org.eclipse.aether.collection.DependencyCollectionContext; |
| import org.eclipse.aether.collection.DependencySelector; |
| import org.eclipse.aether.graph.Dependency; |
| |
| /** |
| * Assists in detecting wagon providers brought into the plugin class path via legacy Maven core artifacts (e.g. |
| * maven-core:2.0.6) and excluding them. A plugin should be able to explicitly declare dependencies on specific wagons |
| * for its use. However, the (old) wagons pulled in transitively via legacy Maven core artifacts are usually not |
| * intended as dependencies and more importantly screw up artifact resolution because they would get preferred over the |
| * core wagon versions. This is a hack to provide backward-compat with Maven 2 (MNG-4528, MNG-4561). |
| * |
| * @author Benjamin Bentmann |
| */ |
| class WagonExcluder |
| implements DependencySelector |
| { |
| |
| private final boolean coreArtifact; |
| |
| WagonExcluder() |
| { |
| this( false ); |
| } |
| |
| private WagonExcluder( boolean coreArtifact ) |
| { |
| this.coreArtifact = coreArtifact; |
| } |
| |
| public boolean selectDependency( Dependency dependency ) |
| { |
| return !( coreArtifact && isWagonProvider( dependency.getArtifact() ) ); |
| } |
| |
| public DependencySelector deriveChildSelector( DependencyCollectionContext context ) |
| { |
| WagonExcluder child = this; |
| |
| if ( isLegacyCoreArtifact( context.getArtifact() ) && !this.coreArtifact ) |
| { |
| child = new WagonExcluder( true ); |
| } |
| |
| return child; |
| } |
| |
| private boolean isLegacyCoreArtifact( Artifact artifact ) |
| { |
| String version = artifact.getVersion(); |
| return version != null && version.startsWith( "2." ) && artifact.getArtifactId().startsWith( "maven-" ) |
| && artifact.getGroupId().equals( "org.apache.maven" ); |
| } |
| |
| private boolean isWagonProvider( Artifact artifact ) |
| { |
| if ( "org.apache.maven.wagon".equals( artifact.getGroupId() ) ) |
| { |
| return artifact.getArtifactId().startsWith( "wagon-" ); |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean equals( Object obj ) |
| { |
| if ( obj == this ) |
| { |
| return true; |
| } |
| else if ( obj == null || !getClass().equals( obj.getClass() ) ) |
| { |
| return false; |
| } |
| |
| WagonExcluder that = (WagonExcluder) obj; |
| return coreArtifact == that.coreArtifact; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int hash = getClass().hashCode(); |
| hash = hash * 31 + ( coreArtifact ? 1 : 0 ); |
| return hash; |
| } |
| |
| } |