static void Main()
{
FooWrapperProducer obj = new FooWrapperProducer();
IDataProducer <Foo> producer = obj.Data;
// count things *as they happen*
// (this is a "future", not a value)
var allCount = producer.Count();
// some more interesting aggregates
var justEven = from item in producer
where item.Bar % 2 == 0
select item;
var evenCount = justEven.Count();
var oddCount = producer.Count(x => x.Bar % 2 == 1);
var evenAvgBar = justEven.Average(x => x.Bar);
// or a more bespoke operation
justEven.DataProduced += x =>
{
Console.WriteLine("Got a line: {0}", x.Bar);
};
// this could be loading an external file, etc
using (Stream feed = CreateData())
{
Serializer.Merge(feed, obj);
}
// now we need to tell the listeners that
// the feed is complete
obj.Data.End();
Console.WriteLine("All count: {0}", allCount.Value);
Console.WriteLine("Even count: {0}", evenCount.Value);
Console.WriteLine("Odd count: {0}", oddCount.Value);
Console.WriteLine("Even average Bar: {0}", evenAvgBar.Value);
// (with later versions don't need .Value)
}