public static IEnumerable <DataModel> StreamProcessPhase2(IEnumerable <DataModel> models)
{
foreach (var model in models)
{
DataModelHelper.ProcessPhase2(model);
yield return(model);
}
}
public void Test1()
{
foreach (var model in GetModels())
{
DataModelHelper.ProcessPhase1(model);
DataModelHelper.ProcessPhase2(model);
DataModelHelper.ProcessPhase3(model);
}
}
/// <summary>
/// 串流處理：處理完一個物件的phase1,2,3才抓下一個物件
/// WIP只會有一個
/// </summary>
private static void Demo2()
{
foreach (var model in GetModels())
{
DataModelHelper.ProcessPhase1(model);
DataModelHelper.ProcessPhase2(model);
DataModelHelper.ProcessPhase3(model);
}
}
public static IEnumerable <DataModel> BlockedCollectionProcessPhase2(IEnumerable <DataModel> models)
{
BlockingCollection <DataModel> result = new BlockingCollection <DataModel>(BLOCKING_COLLECTION_CAPACITY);
Task.Run(() =>
{
foreach (var model in models)
{
DataModelHelper.ProcessPhase2(model);
result.Add(model);
}
result.CompleteAdding();
});
return(result.GetConsumingEnumerable());
}
private static void Main(string[] args)
{
var json = JsonSerializer.Create();
var jsonreader = new JsonTextReader(Console.In);
jsonreader.SupportMultipleContent = true;
while (jsonreader.Read())
{
var d = json.Deserialize <DataModel>(jsonreader);
DataModelHelper.ProcessPhase2(d);
json.Serialize(Console.Out, d);
}
}
private IEnumerable <DataModel> StreamAsyncProcessPhase2(IEnumerable <DataModel> models)
{
Task <DataModel> previous_result = null;
foreach (var model in models)
{
if (previous_result != null)
{
yield return(previous_result.Result);
}
previous_result = Task.Run <DataModel>(() => { DataModelHelper.ProcessPhase2(model); return(model); });
}
if (previous_result != null)
{
yield return(previous_result.GetAwaiter().GetResult());
}
}
/// <summary>
/// 批次處理：依序執行所有物件的phase1，再做所有的phase2，最後做所有的phase3
/// WIP與任務數量呈正比
/// </summary>
private static void Demo1()
{
DataModel[] models = GetModels().ToArray();
foreach (var model in models)
{
DataModelHelper.ProcessPhase1(model);
}
foreach (var model in models)
{
DataModelHelper.ProcessPhase2(model);
}
foreach (var model in models)
{
DataModelHelper.ProcessPhase3(model);
}
}