/*
* 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 store;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import org.apache.tuscany.sca.binding.feed.collection.Collection;
import org.apache.tuscany.sca.binding.feed.collection.NotFoundException;
import com.sun.syndication.feed.atom.Content;
import com.sun.syndication.feed.atom.Entry;
import com.sun.syndication.feed.atom.Feed;
import com.sun.syndication.feed.atom.Link;
public class ShoppingCartImpl implements Collection {
private static Map<String, Entry> cart = new HashMap<String, Entry>();
public Feed getFeed() {
Feed feed = new Feed();
feed.setTitle("shopping cart");
Content subtitle = new Content();
subtitle.setValue("Total : " + getTotal());
feed.setSubtitle(subtitle);
feed.getEntries().addAll(cart.values());
return feed;
}
public Entry get(String id) throws NotFoundException {
return cart.get(id);
}
public Entry post(Entry entry) {
System.out.println("post" + entry);
String id = "cart-" + UUID.randomUUID().toString();
entry.setId(id);
Link link = new Link();
link.setRel("edit");
link.setHref(id);
entry.getOtherLinks().add(link);
link = new Link();
link.setRel("alternate");
link.setHref(id);
entry.getAlternateLinks().add(link);
entry.setCreated(new Date());
cart.put(id, entry);
return entry;
}
public void put(String id, Entry entry) throws NotFoundException {
entry.setUpdated(new Date());
cart.put(id, entry);
}
public void delete(String id) throws NotFoundException {
if (id.equals(""))
cart.clear();
else
cart.remove(id);
}
private String getTotal() {
float total = 0;
String currencySymbol = "";
if (!cart.isEmpty()) {
String item = ((Content)cart.values().iterator().next().getContents().get(0)).getValue();
currencySymbol = item.substring(item.indexOf("-") + 2, item.indexOf("-") + 3);
}
for (Entry entry : cart.values()) {
String item = ((Content)entry.getContents().get(0)).getValue();
int index = item.length()-1;
char digit;
while ((digit = item.charAt(index)) == '.' || Character.isDigit(digit)) {
index--;
}
total += Float.valueOf(item.substring(index));
}
return currencySymbol + String.valueOf(total);
}
}