code: /*
   * Copyright 2012-2018 Chronicle Map Contributors
   *
   * Licensed 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 examples.portfolio;
  
  import net.openhft.chronicle.core.values.LongValue;
  import net.openhft.chronicle.map.MapEntry;
  import org.apache.commons.lang3.mutable.MutableDouble;
  
  import java.util.function.Consumer;
  
  public final class PortfolioValueAccumulator implements Consumer<MapEntry<LongValue, PortfolioAssetInterface>> {
      final MutableDouble total;
      final PortfolioAssetInterface asset;
  
      public PortfolioValueAccumulator(MutableDouble total, PortfolioAssetInterface asset) {
          this.total = total;
          this.asset = asset;
      }
  
      @Override
      public void accept(MapEntry<LongValue, PortfolioAssetInterface> e) {
          e.value().getUsing(asset);
          total.add(asset.getShares() * asset.getPrice());
      }
  }