public async Task <ActivityResponse> ExecuteAsync(Activity activity, ActivityArgs activityArgs, CancellationToken cancellationToken)
{
var executionStrategy = ExecutionStrategy.CreateFor(_executeMethod);
var parameters = _executeMethod.BuildParametersFrom(activityArgs, cancellationToken);
return(await executionStrategy.Execute(this, activity, parameters, activityArgs.TaskToken));
}
private async Task <ActivityResponse> ExecuteActivityTask(ActivityHost activityHost)
{
var activity = activityHost.FindBy(_activityTask.ActivityType.Name, _activityTask.ActivityType.Version);
var activityArgs = new ActivityArgs(_activityTask.Input,
_activityTask.ActivityId,
_activityTask.WorkflowExecution.WorkflowId,
_activityTask.WorkflowExecution.RunId,
_activityTask.TaskToken);
activityArgs.StartedEventId = _activityTask.StartedEventId;
activity.SetErrorHandler(_errorHandler);
activity.SetSwfApi(_heartbeatSwfApi);
return(await activity.ExecuteAsync(activityArgs));
}
internal async Task <ActivityResponse> ExecuteAsync(ActivityArgs activityArgs)
{
try
{
Hearbeat.SetFallbackErrorHandler(_errorHandler);
Hearbeat.StartHeartbeatIfEnabled(_heartbeatApi, activityArgs.TaskToken);
var retryableFunc = new RetryableFunc(_errorHandler);
return(await retryableFunc.ExecuteAsync(() => ExecuteActivityMethod(activityArgs), Defer));
}
finally
{
Hearbeat.StopHeartbeat();
}
}
private async Task <ActivityResponse> ExecuteActivityMethod(ActivityArgs activityArgs)
{
try
{
return(await _executionMethod.ExecuteAsync(this, activityArgs, _cancellationTokenSource.Token));
}
catch (OperationCanceledException exception)
{
return(Cancel(exception.Message));
}
catch (Exception exception)
{
if (FailOnException)
{
return(Fail(exception.GetType().Name, exception.Message));
}
throw;
}
}
private async Task <ActivityResponse> ExecuteActivityMethod(ActivityArgs activityArgs)
{
try
{
return(await _executionMethod.ExecuteAsync(this, activityArgs, _cancellationTokenSource.Token));
}
catch (OperationCanceledException exception)
{
var desc = ActivityDescription.FindOn(GetType());
return(Cancel($"Activity name: {desc.Name} and version: { desc.Version} is cancelled."));
}
catch (Exception exception)
{
if (FailOnException)
{
return(Fail(exception.GetType().Name, exception.Message));
}
throw;
}
}