package org.apache.maven.repository.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 java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.maven.model.DependencyManagement;
  import org.apache.maven.model.DistributionManagement;
  import org.apache.maven.model.License;
  import org.apache.maven.model.Model;
  import org.apache.maven.model.Prerequisites;
  import org.apache.maven.model.Repository;
  import org.eclipse.aether.RepositorySystemSession;
  import org.eclipse.aether.artifact.Artifact;
  import org.eclipse.aether.artifact.ArtifactProperties;
  import org.eclipse.aether.artifact.ArtifactType;
  import org.eclipse.aether.artifact.ArtifactTypeRegistry;
  import org.eclipse.aether.artifact.DefaultArtifact;
  import org.eclipse.aether.artifact.DefaultArtifactType;
  import org.eclipse.aether.graph.Dependency;
  import org.eclipse.aether.graph.Exclusion;
  import org.eclipse.aether.resolution.ArtifactDescriptorResult;
  
  /**
   * Populates Aether {@link ArtifactDescriptorResult} from Maven project {@link Model}.
   * 
   * @since 3.2.4
   * @provisional This class is part of work in progress and can be changed or removed without notice.
   */
  public class ArtifactDescriptorReaderDelegate
  {
      public void populateResult( RepositorySystemSession session, ArtifactDescriptorResult result, Model model )
      {
          ArtifactTypeRegistry stereotypes = session.getArtifactTypeRegistry();
  
          for ( Repository r : model.getRepositories() )
          {
              result.addRepository( ArtifactDescriptorUtils.toRemoteRepository( r ) );
          }
  
          for ( org.apache.maven.model.Dependency dependency : model.getDependencies() )
          {
              result.addDependency( convert( dependency, stereotypes ) );
          }
  
          DependencyManagement mngt = model.getDependencyManagement();
          if ( mngt != null )
          {
              for ( org.apache.maven.model.Dependency dependency : mngt.getDependencies() )
              {
                  result.addManagedDependency( convert( dependency, stereotypes ) );
              }
          }
  
          Map<String, Object> properties = new LinkedHashMap<String, Object>();
  
          Prerequisites prerequisites = model.getPrerequisites();
          if ( prerequisites != null )
          {
              properties.put( "prerequisites.maven", prerequisites.getMaven() );
          }
  
          List<License> licenses = model.getLicenses();
          properties.put( "license.count", licenses.size() );
          for ( int i = 0; i < licenses.size(); i++ )
          {
              License license = licenses.get( i );
              properties.put( "license." + i + ".name", license.getName() );
              properties.put( "license." + i + ".url", license.getUrl() );
              properties.put( "license." + i + ".comments", license.getComments() );
              properties.put( "license." + i + ".distribution", license.getDistribution() );
          }
  
          result.setProperties( properties );
  
          setArtifactProperties( result, model );
      }
 
     private Dependency convert( org.apache.maven.model.Dependency dependency, ArtifactTypeRegistry stereotypes )
     {
         ArtifactType stereotype = stereotypes.get( dependency.getType() );
         if ( stereotype == null )
         {
             stereotype = new DefaultArtifactType( dependency.getType() );
         }
 
         boolean system = dependency.getSystemPath() != null && dependency.getSystemPath().length() > 0;
 
         Map<String, String> props = null;
         if ( system )
         {
             props = Collections.singletonMap( ArtifactProperties.LOCAL_PATH, dependency.getSystemPath() );
         }
 
         Artifact artifact =
             new DefaultArtifact( dependency.getGroupId(), dependency.getArtifactId(), dependency.getClassifier(), null,
                                  dependency.getVersion(), props, stereotype );
 
         List<Exclusion> exclusions = new ArrayList<Exclusion>( dependency.getExclusions().size() );
         for ( org.apache.maven.model.Exclusion exclusion : dependency.getExclusions() )
         {
             exclusions.add( convert( exclusion ) );
         }
 
         Dependency result = new Dependency( artifact, dependency.getScope(), dependency.isOptional(), exclusions );
 
         return result;
     }
 
     private Exclusion convert( org.apache.maven.model.Exclusion exclusion )
     {
         return new Exclusion( exclusion.getGroupId(), exclusion.getArtifactId(), "*", "*" );
     }
 
     private void setArtifactProperties( ArtifactDescriptorResult result, Model model )
     {
         String downloadUrl = null;
         DistributionManagement distMngt = model.getDistributionManagement();
         if ( distMngt != null )
         {
             downloadUrl = distMngt.getDownloadUrl();
         }
         if ( downloadUrl != null && downloadUrl.length() > 0 )
         {
             Artifact artifact = result.getArtifact();
             Map<String, String> props = new HashMap<String, String>( artifact.getProperties() );
             props.put( ArtifactProperties.DOWNLOAD_URL, downloadUrl );
             result.setArtifact( artifact.setProperties( props ) );
         }
     }
 }