001    package org.apache.maven.plugin.internal;
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 java.util.List;
023    
024    import org.apache.maven.model.Plugin;
025    import org.apache.maven.plugin.PluginResolutionException;
026    import org.eclipse.aether.RepositorySystemSession;
027    import org.eclipse.aether.artifact.Artifact;
028    import org.eclipse.aether.graph.DependencyFilter;
029    import org.eclipse.aether.graph.DependencyNode;
030    import org.eclipse.aether.repository.RemoteRepository;
031    
032    /**
033     * Assists in resolving the dependencies of a plugin. <strong>Warning:</strong> This is an internal utility interface
034     * that is only public for technical reasons, it is not part of the public API. In particular, this interface can be
035     * changed or deleted without prior notice.
036     * 
037     * @since 3.0
038     * @author Benjamin Bentmann
039     */
040    public interface PluginDependenciesResolver
041    {
042    
043        /**
044         * Resolves the main artifact of the specified plugin.
045         * 
046         * @param plugin The plugin for which to resolve the main artifact, must not be {@code null}.
047         * @param repositories The plugin repositories to use for resolving the plugin's main artifact, must not be {@code
048         *            null}.
049         * @param session The repository session to use for resolving the plugin's main artifact, must not be {@code null}.
050         * @return The resolved plugin artifact, never {@code null}.
051         * @throws PluginResolutionException If the plugin artifact could not be resolved.
052         */
053        Artifact resolve( Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session )
054            throws PluginResolutionException;
055    
056        /**
057         * Resolves the runtime dependencies of the specified plugin.
058         * 
059         * @param plugin The plugin for which to resolve the dependencies, must not be {@code null}.
060         * @param pluginArtifact The plugin's main artifact, may be {@code null}.
061         * @param dependencyFilter A filter to exclude artifacts from resolution (but not collection), may be {@code null}.
062         * @param repositories The plugin repositories to use for resolving the plugin artifacts, must not be {@code null}.
063         * @param session The repository session to use for resolving the plugin artifacts, must not be {@code null}.
064         * @return The dependency tree denoting the resolved plugin class path, never {@code null}.
065         * @throws PluginResolutionException If any dependency could not be resolved.
066         */
067        DependencyNode resolve( Plugin plugin, Artifact pluginArtifact, DependencyFilter dependencyFilter,
068                                List<RemoteRepository> repositories, RepositorySystemSession session )
069            throws PluginResolutionException;
070    
071    }