/*
    * 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.
   */
  package org.apache.maven.repository.internal.relocation;
  
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import org.apache.maven.model.DistributionManagement;
  import org.apache.maven.model.Model;
  import org.apache.maven.model.Relocation;
  import org.apache.maven.repository.internal.MavenArtifactRelocationSource;
  import org.apache.maven.repository.internal.RelocatedArtifact;
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.artifact.Artifact;
  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
  import org.eclipse.sisu.Priority;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Relocation source from standard distribution management. This is the "one and only" relocation implementation that
   * existed in Maven 3 land, uses POM distributionManagement/relocation.
   * <p>
   * Note: this component should kick-in last regarding relocations.
   *
   * @since 4.0.0
   */
  @Singleton
  @Named(DistributionManagementArtifactRelocationSource.NAME)
  @Priority(5)
  @SuppressWarnings("checkstyle:MagicNumber")
  public final class DistributionManagementArtifactRelocationSource implements MavenArtifactRelocationSource {
      public static final String NAME = "distributionManagement";
      private static final Logger LOGGER = LoggerFactory.getLogger(DistributionManagementArtifactRelocationSource.class);
  
      @Override
      public Artifact relocatedTarget(
              RepositorySystemSession session, ArtifactDescriptorResult artifactDescriptorResult, Model model) {
          DistributionManagement distMgmt = model.getDistributionManagement();
          if (distMgmt != null) {
              Relocation relocation = distMgmt.getRelocation();
              if (relocation != null) {
                  Artifact result = new RelocatedArtifact(
                          artifactDescriptorResult.getRequest().getArtifact(),
                          relocation.getGroupId(),
                          relocation.getArtifactId(),
                          null,
                          null,
                          relocation.getVersion(),
                          relocation.getMessage());
                  LOGGER.debug(
                          "The artifact {} has been relocated to {}: {}",
                          artifactDescriptorResult.getRequest().getArtifact(),
                          result,
                          relocation.getMessage());
                  return result;
              }
          }
          return null;
      }
  }