/*
    * 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.project;
  
  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;
  
  /**
   */
  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<>();
  
      @Override
      public DependencyNode getDependencyGraph() {
          return root;
      }
  
      public void setDependencyGraph(DependencyNode root) {
          this.root = root;
      }
  
      @Override
      public List<Dependency> getDependencies() {
          return dependencies;
      }
  
      @Override
      public List<Dependency> getResolvedDependencies() {
          return resolvedDependencies;
      }
  
      public void addResolvedDependency(Dependency dependency) {
          dependencies.add(dependency);
          resolvedDependencies.add(dependency);
      }
  
      @Override
      public List<Dependency> getUnresolvedDependencies() {
          return unresolvedDependencies;
      }
  
      @Override
      public List<Exception> getCollectionErrors() {
          return collectionErrors;
      }
  
      public void setCollectionErrors(List<Exception> exceptions) {
          if (exceptions != null) {
              this.collectionErrors = exceptions;
          } else {
              this.collectionErrors = new ArrayList<>();
          }
      }
  
      @Override
      public List<Exception> getResolutionErrors(Dependency dependency) {
          List<Exception> errors = resolutionErrors.get(dependency);
          return (errors != null) ? Collections.unmodifiableList(errors) : Collections.emptyList();
      }
  
      public void setResolutionErrors(Dependency dependency, List<Exception> errors) {
          dependencies.add(dependency);
          unresolvedDependencies.add(dependency);
          resolutionErrors.put(dependency, errors);
      }
  }