//I had a hard time coming up with something representative of complex business logic
public IEnumerable<FooItem> ProcessFoos()
{
ItemRepository itemRepository = new ItemRepository();
IEnumerable<Item> items = itemRepository.GetAll();
//Processing the business logic is expensive
Thread.Sleep(1000);
return items.Where(item => item.IsFoo)
.Select(item => new FooItem(item));
}
public void Run()
{
var repo = new ItemRepository();
var items = repo.GetAll();
var bars = items.Where(i => i.IsBar)
.Select(i => new BarItem(i));
var logger = new ConsoleLogger();
foreach (var bar in bars)
{
//Deleting has a logging side effect
logger.Log("Started deleting a record because of bar...");
//Deleting is expensive
Thread.Sleep(10000);
//Deleting has another logging side effect
logger.Log("Deleted a record because of bar.");
}
}