content: /*
   *  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
   *
   *      https://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.ivy.core.resolve;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * This class is used to store data related to one node of the dependency graph visit. It stores
   * both an {@link IvyNode} and related {@link VisitNode} objects. Indeed, during the visit of the
   * graph, the algorithm can visit the same node from several parents, thus requiring several
   * VisitNode.
   */
  public class VisitData {
      /**
       * A node in the graph of module dependencies resolution
       */
      private IvyNode node;
  
      /**
       * The associated visit nodes, per rootModuleConf Note that the value is a List, because a node
       * can be visited from several parents during the resolution process
       */
      private Map<String, List<VisitNode>> visitNodes = new HashMap<>();
  
      public VisitData(IvyNode node) {
          this.node = node;
      }
  
      public void addVisitNode(VisitNode node) {
          String rootModuleConf = node.getRootModuleConf();
          getVisitNodes(rootModuleConf).add(node);
      }
  
      public List<VisitNode> getVisitNodes(String rootModuleConf) {
          List<VisitNode> visits = visitNodes.get(rootModuleConf);
          if (visits == null) {
              visits = new ArrayList<>();
              visitNodes.put(rootModuleConf, visits);
          }
          return visits;
      }
  
      public IvyNode getNode() {
          return node;
      }
  
      public void setNode(IvyNode node) {
          this.node = node;
      }
  
      public void addVisitNodes(String rootModuleConf, List<VisitNode> visitNodes) {
          getVisitNodes(rootModuleConf).addAll(visitNodes);
      }
  }
  