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1   /*
2    * JBoss, Home of Professional Open Source
3    * Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual
4    * contributors by the @authors tag. See the copyright.txt in the
5    * distribution for a full listing of individual contributors.
6    *
7    * Licensed under the Apache License, Version 2.0 (the "License");
8    * you may not use this file except in compliance with the License.
9    * You may obtain a copy of the License at
10   * http://www.apache.org/licenses/LICENSE-2.0
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.jboss.as.quickstarts.sfsb;
18  
19  import java.util.HashMap;
20  import java.util.logging.Logger;
21  
22  import javax.ejb.Remove;
23  import javax.ejb.Stateful;
24  
25  /**
26   * @author Serge Pagop
27   */
28  @Stateful
29  public class ShoppingCartBean implements ShoppingCart {
30  
31      private final static Logger LOGGER = Logger.getLogger(ShoppingCartBean.class.toString());
32  
33      private HashMap<String, Integer> cart = new HashMap<String, Integer>();
34  
35      public void buy(String product, int quantity) {
36          if (cart.containsKey(product)) {
37              int currentQuantity = cart.get(product);
38              currentQuantity += quantity;
39              cart.put(product, currentQuantity);
40          } else {
41              cart.put(product, quantity);
42          }
43      }
44  
45      public HashMap<String, Integer> getCartContents() {
46          return cart;
47      }
48  
49      @Remove
50      public void checkout() {
51          LOGGER.info("implementing checkout() left as exercise for the reader!");
52      }
53  }