public Order getById(String orderId) {
List<Order> orders = storage.getOrders();
for (Order order : orders) {
if (order.getOrderId().equals(orderId)) {
return order;
}
}
return null;
}
public List<Order> getOlderThanDate(Date date) {
List<Order> orders = storage.getOrders();
List<Order> result = new ArrayList<Order>();
for (Order order : orders) {
if (order.getPurchaseDate().after(date)) {
result.add(order);
}
}
return result;
}
public List<Order> getSortedOrders() {
List<Order> orders = storage.getOrders();
Collections.sort(
orders,
new Comparator<Order>() {
public int compare(Order o1, Order o2) {
return o1.getPurchaseDate().compareTo(o2.getPurchaseDate());
}
});
return orders;
}
public Map<Date, List<Order>> getOrdersByDate() {
List<Order> orders = storage.getOrders();
Map<Date, List<Order>> result = new HashMap<Date, List<Order>>();
for (Order order : orders) {
if (result.containsKey(order.getPurchaseDate())) {
result.get(order.getPurchaseDate()).add(order);
} else {
List<Order> t = new ArrayList<Order>();
t.add(order);
result.put(order.getPurchaseDate(), t);
}
}
return result;
}
public Set<Order> getUniqueOrders() {
List<Order> orders = storage.getOrders();
return new HashSet<Order>(orders);
}