public virtual async Task <ActionEvent> ExecuteAsync(CancellationToken token)
{
HttpRequestItem requestItem = null;
if (!token.IsCancellationRequested)
{
++ExcuteTimes;
try
{
requestItem = BuildRequest();
var response = await HttpService.ExecuteHttpRequestAsync(requestItem, token).ConfigureAwait(false);
return(await HandleResponse(response).ConfigureAwait(false));
}
catch (TaskCanceledException) { }
catch (OperationCanceledException) { }
catch (Exception ex)
{
ex = ex.InnerException ?? ex;
#if DEBUG
// 此处用于生成请求信息，然后用fiddler等工具测试
if (requestItem != null)
{
var url = requestItem.RawUrl;
var header = requestItem.GetRequestHeader(HttpService.GetCookies(requestItem.RawUrl));
var data = requestItem.RawData;
var len = data.Length;
}
#endif
return(await HandleExceptionAsync(ex).ConfigureAwait(false));
}
}
return(await NotifyActionEventAsync(ActionEvent.CreateEvent(ActionEventType.EvtCanceled, this)).ConfigureAwait(false));
}
public virtual async Task <ActionEvent> ExecuteAsync(CancellationToken token)
{
ActionEvent lastEvent = null;
while (_queue.Count != 0)
{
if (token.IsCancellationRequested)
{
_queue.Clear();
return(ActionEvent.CreateEvent(ActionEventType.EvtCanceled, this));
}
var action = _queue.First.Value;
var result = await action.ExecuteAsync(token).ConfigureAwait(false);;
switch (result.Type)
{
case ActionEventType.EvtOK:
_queue.RemoveFirst();
break;
case ActionEventType.EvtError:
case ActionEventType.EvtCanceled:
_queue.Clear();
return(result);
case ActionEventType.EvtRetry:
case ActionEventType.EvtRepeat:
continue;
}
lastEvent = result;
}
return(lastEvent ?? ActionEvent.EmptyOkEvent);
}
public virtual async Task <ActionEvent> HandleExceptionAsync(Exception ex)
{
try
{
var @event = ActionEvent.CreateEvent(RetryTimes < MaxReTryTimes ?
ActionEventType.EvtRetry : ActionEventType.EvtError, ex);
return(await NotifyActionEventAsync(@event));
}
catch (Exception e)
{
throw new Exception($"throw an unhandled exception when excute [{nameof(HandleExceptionAsync)}] method.", e);
}
}
protected override Task <ActionEvent> HandleExceptionAsync(Exception ex)
{
// SyncUrl为空说明正在测试host
if (Session.SyncUrl == null)
{
if (++RetryTimes < MaxReTryTimes)
{
return(NotifyActionEventAsync(ActionEvent.CreateEvent(ActionEventType.EvtRetry, ex)));
}
else
{
RetryTimes = 0;
return(TestNextHost());
}
}
else
{
return(base.HandleExceptionAsync(ex));
}
}
protected virtual Task <ActionEvent> NotifyActionEventAsync(ActionEventType type, object target = null)
{
return(NotifyActionEventAsync(ActionEvent.CreateEvent(type, target)));
}