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/*
* 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);
}
}
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