| /* |
| * 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 |
| * |
| * 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 services; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.UUID; |
| |
| import org.apache.tuscany.sca.data.collection.Entry; |
| import org.apache.tuscany.sca.data.collection.NotFoundException; |
| import org.oasisopen.sca.annotation.Init; |
| import org.oasisopen.sca.annotation.Scope; |
| |
| @Scope("COMPOSITE") |
| public class ShoppingCartImpl implements Cart, Total { |
| |
| private Map<String, Item> cart; |
| |
| @Init |
| public void init() { |
| cart = new HashMap<String, Item>(); |
| } |
| |
| public Entry<String, Item>[] getAll() { |
| Entry<String, Item>[] entries = new Entry[cart.size()]; |
| int i = 0; |
| for (Map.Entry<String, Item> e: cart.entrySet()) { |
| entries[i++] = new Entry<String, Item>(e.getKey(), e.getValue()); |
| } |
| return entries; |
| } |
| |
| public Item get(String key) throws NotFoundException { |
| Item item = cart.get(key); |
| if (item == null) { |
| throw new NotFoundException(key); |
| } else { |
| return item; |
| } |
| } |
| |
| public String post(String key, Item item) { |
| if (key == null) { |
| key ="cart-" + UUID.randomUUID().toString(); |
| } |
| cart.put(key, item); |
| return key; |
| } |
| |
| public void put(String key, Item item) throws NotFoundException { |
| if (!cart.containsKey(key)) { |
| throw new NotFoundException(key); |
| } |
| cart.put(key, item); |
| } |
| |
| public void delete(String key) throws NotFoundException { |
| if (key == null || key.equals("")) { |
| cart.clear(); |
| } else { |
| Item item = cart.remove(key); |
| if (item == null) |
| throw new NotFoundException(key); |
| } |
| } |
| |
| public Entry<String, Item>[] query(String queryString) { |
| List<Entry<String, Item>> entries = new ArrayList<Entry<String,Item>>(); |
| if (queryString.startsWith("name=")) { |
| String name = queryString.substring(5); |
| for (Map.Entry<String, Item> e: cart.entrySet()) { |
| Item item = e.getValue(); |
| if (item.getName().equals(name)) { |
| entries.add(new Entry<String, Item>(e.getKey(), e.getValue())); |
| } |
| } |
| } |
| return entries.toArray(new Entry[entries.size()]); |
| } |
| |
| public String getTotal() { |
| double total = 0; |
| String currencySymbol = ""; |
| if (!cart.isEmpty()) { |
| Item item = cart.values().iterator().next(); |
| currencySymbol = item.getPrice().substring(0, 1); |
| } |
| for (Item item : cart.values()) { |
| total += Double.valueOf(item.getPrice().substring(1)); |
| } |
| return currencySymbol + String.valueOf(total); |
| } |
| } |