private async Task Compensate(SagaExecutionContext <TContext> result, SagaStepContainer <TContext> step)
{
try
{
await step.Compensate(Context);
}
catch (Exception e2)
{
result.AddError(e2);
}
}
private async Task Invoke_Error_Handling(SagaExecutionContext <TContext> result)
{
if (_errorAction != null)
{
_errorAction.Invoke(result.Errors);
}
else if (_errorFunc != null)
{
await _errorFunc.Invoke(result.Errors);
}
}
public async Task <SagaExecutionContext <TContext> > Run()
{
var result = new SagaExecutionContext <TContext>();
foreach (var step in Steps)
{
try
{
Context = await step.Run(Context);
if (Context.HasErrors())
{
result.AddError(Context.Errors);
await Compensate(result, step);
if (Terminate_On_Error(step))
{
break;
}
}
}
catch (Exception e)
{
Log_Execution_Error(result, e);
await Compensate(result, step);
if (Terminate_On_Error(step))
{
break;
}
}
}
if (result.HasErrors())
{
await Invoke_Error_Handling(result);
return(result);
}
await Invoke_Success_Handling();
return(result);
}
private static void Log_Execution_Error(SagaExecutionContext <TContext> result, Exception e)
{
result.AddError(e);
}