package org.apache.maven.shared.transfer.dependencies.collect.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.HashSet;
  import java.util.List;
  import java.util.Set;
  
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.shared.transfer.dependencies.collect.CollectorResult;
  import org.eclipse.aether.collection.CollectResult;
  import org.eclipse.aether.graph.DependencyNode;
  import org.eclipse.aether.graph.DependencyVisitor;
  import org.eclipse.aether.repository.RemoteRepository;
  
  /**
   * CollectorResult wrapper around {@link CollectResult}
   * 
   * @author Robert Scholte
   *
   */
  class Maven31CollectorResult implements CollectorResult
  {
      private final CollectResult collectResult;
      
      /**
       * @param collectResult {@link CollectorResult}
       */
      Maven31CollectorResult( CollectResult collectResult )
      {
          this.collectResult = collectResult;
      }
  
      @Override
      public List<ArtifactRepository> getRemoteRepositories()
      {
          final Set<RemoteRepository> aetherRepositories = new HashSet<>();
          
          DependencyVisitor visitor = new DependencyVisitor()
          {
              @Override
              public boolean visitEnter( DependencyNode node )
              {
                  aetherRepositories.addAll( node.getRepositories() );
                  return true;
              }
              
              @Override
              public boolean visitLeave( DependencyNode node )
              {
                  return true;
              }
          };
          
          collectResult.getRoot().accept( visitor );
          
          List<ArtifactRepository> mavenRepositories = new ArrayList<>( aetherRepositories.size() );
          
          for ( RemoteRepository aetherRepository : aetherRepositories )
          {
              mavenRepositories.add( new Maven31ArtifactRepositoryAdapter( aetherRepository ) );
          }
          
          return mavenRepositories;
      }
  
  }