/*
    * SPDX-FileCopyrightText: none
    * SPDX-License-Identifier: CC0-1.0
    */
   
   package dev.metaschema.oscal.lib.profile.resolver.support;
   
   import java.util.Set;
   
  import dev.metaschema.core.metapath.item.node.IRootAssemblyNodeItem;
  import dev.metaschema.oscal.lib.profile.resolver.support.IEntityItem.ItemType;
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  /**
   * A visitor that walks a catalog visiting controls and parameters.
   */
  public class ControlIndexingVisitor
      extends AbstractIndexingVisitor<IIndexer, Void> {
  
    public ControlIndexingVisitor(@NonNull Set<ItemType> itemTypesToIndex) {
      super(itemTypesToIndex);
    }
  
    @SuppressWarnings("null")
    @Override
    protected IIndexer getIndexer(IIndexer state) {
      return state;
    }
  
    @Override
    protected Void newDefaultResult(IIndexer state) {
      return null;
    }
  
    @Override
    protected Void aggregateResults(Void first, Void second, IIndexer state) {
      return null;
    }
  
    public void visitProfile(@NonNull IRootAssemblyNodeItem root, @NonNull IIndexer index) {
      visitMetadata(root, index);
      visitBackMatter(root, index);
    }
  }