public void OnActionExecuting(ActionExecutingContext context)
{
if (OnActionExecutingVerbs.HasFlag(HttpVerbMapper.GetVerb(context.HttpContext.Request.Method)))
{
IVersioned <IConcurrencyVersion> resource = context.ActionArguments.Values.OfType <IVersioned <IConcurrencyVersion> >().SingleOrDefault();
if (resource != null)
{
resource.Version = _concurrencyVersionProvider.Get();
}
}
}
public void OnActionExecuted(ActionExecutedContext context)
{
if (OnActionExecutedVerbs.HasFlag(HttpVerbMapper.GetVerb(context.HttpContext.Request.Method)))
{
if (context.Result is ObjectResult result)
{
if (result.Value is BuiltResource builtResource)
{
if (builtResource.Version != null)
{
string jsonVersion = JsonConvert.SerializeObject(builtResource.Version);
byte[] plainTextBytes = System.Text.Encoding.UTF8.GetBytes(jsonVersion);
context.HttpContext.Response.Headers[ConcurrencyHeaders.ETag] = Convert.ToBase64String(plainTextBytes);
}
}
}
}
}
public async Task Invoke(HttpContext context, ITransactionManager transactionManager)
{
if (TransactionalMethods.HasFlag(HttpVerbMapper.GetVerb(context.Request.Method)))
{
using (ITransaction transaction = transactionManager.Create())
{
await _next.Invoke(context);
if (SuccesStatusCodes.Contains((HttpStatusCode)context.Response.StatusCode))
{
transaction.Commit();
}
else
{
transaction.Rollback();
}
}
}
else
{
await _next.Invoke(context);
}
}