package org.apache.maven.project;
   
   /*
    * 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.IdentityHashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.eclipse.aether.graph.Dependency;
  import org.eclipse.aether.graph.DependencyNode;
  
  /**
   * @author Benjamin Bentmann
   */
  class DefaultDependencyResolutionResult
      implements DependencyResolutionResult
  {
  
      private DependencyNode root;
  
      private List<Dependency> dependencies = new ArrayList<>();
  
      private List<Dependency> resolvedDependencies = new ArrayList<>();
  
      private List<Dependency> unresolvedDependencies = new ArrayList<>();
  
      private List<Exception> collectionErrors = new ArrayList<>();
  
      private Map<Dependency, List<Exception>> resolutionErrors = new IdentityHashMap<>();
  
      public DependencyNode getDependencyGraph()
      {
          return root;
      }
  
      public void setDependencyGraph( DependencyNode root )
      {
          this.root = root;
      }
  
      public List<Dependency> getDependencies()
      {
          return dependencies;
      }
  
      public List<Dependency> getResolvedDependencies()
      {
          return resolvedDependencies;
      }
  
      public void addResolvedDependency( Dependency dependency )
      {
          dependencies.add( dependency );
          resolvedDependencies.add( dependency );
      }
  
      public List<Dependency> getUnresolvedDependencies()
      {
          return unresolvedDependencies;
      }
  
      public List<Exception> getCollectionErrors()
      {
          return collectionErrors;
      }
  
      public void setCollectionErrors( List<Exception> exceptions )
      {
          if ( exceptions != null )
          {
              this.collectionErrors = exceptions;
          }
          else
          {
              this.collectionErrors = new ArrayList<>();
          }
      }
  
      public List<Exception> getResolutionErrors( Dependency dependency )
      {
         List<Exception> errors = resolutionErrors.get( dependency );
         return ( errors != null )
                    ? Collections.unmodifiableList( errors )
                    : Collections.<Exception>emptyList();
 
     }
 
     public void setResolutionErrors( Dependency dependency, List<Exception> errors )
     {
         dependencies.add( dependency );
         unresolvedDependencies.add( dependency );
         resolutionErrors.put( dependency, errors );
     }
 
 }