001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.spi.resolution;
020
021import java.util.List;
022
023import org.eclipse.aether.RepositorySystemSession;
024import org.eclipse.aether.resolution.ArtifactResult;
025
026/**
027 * Artifact resolver post-resolution processor component, is able to hook into resolver and post-process the resolved
028 * artifact results, if needed even produce resolution failure. It will always be invoked (even when failure is about
029 * to happen), so detecting these cases are left to post processor implementations.
030 *
031 * @since 1.9.0
032 */
033public interface ArtifactResolverPostProcessor {
034    /**
035     * Receives resolver results just before it would return it to caller. Is able to generate "resolution failure"
036     * by augmenting passed in {@link ArtifactResult}s (artifacts should be "unresolved" and exceptions added).
037     * <p>
038     * Implementations must be aware that the passed in list of {@link ArtifactResult}s may have failed resolutions,
039     * best to check that using {@link ArtifactResult#isResolved()} method.
040     * <p>
041     * The implementations must be aware that this call may be "hot", so it directly affects the performance of
042     * resolver in general.
043     */
044    void postProcess(RepositorySystemSession session, List<ArtifactResult> artifactResults);
045}