content: /*
   * Copyright 2005 JBoss Inc
   *
   * 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 lambdasinaction.dsl;
  
  import lambdasinaction.dsl.model.Order;
  import lambdasinaction.dsl.model.Stock;
  import lambdasinaction.dsl.model.Trade;
  
  import java.util.stream.Stream;
  
  public class NestedFunctionOrderBuilder {
  
      public static Order order(String customer, Trade... trades) {
          Order order = new Order();
          order.setCustomer( customer );
          Stream.of(trades).forEach( order::addTrade );
          return order;
      }
  
      public static Trade buy(int quantity, Stock stock, double price) {
          return buildTrade( stock, price, Trade.Type.BUY );
      }
  
      public static Trade sell(int quantity, Stock stock, double price) {
          return buildTrade( stock, price, Trade.Type.SELL );
      }
  
      private static Trade buildTrade( Stock stock, double price, Trade.Type buy ) {
          Trade trade = new Trade();
          trade.setType( buy );
          trade.setStock( stock );
          trade.setPrice( price );
          return trade;
      }
  
      public static double at(double price) {
          return price;
      }
  
      public static Stock stock(String symbol, String market) {
          Stock stock = new Stock();
          stock.setSymbol( symbol );
          stock.setMarket( market );
          return stock;
      }
  
      public static String on(String market) {
          return market;
      }
  }
  