private void Init()
{
if (_initialized)
{
return;
}
lock (Locker)
{
if (_initialized)
{
return;
}
_acDomain.MessageDispatcher.DispatchMessage(new MemorySetInitingEvent(this));
_viewDicByFunction.Clear();
_viewDicById.Clear();
var views = _acDomain.RetrieveRequiredService <IOriginalHostStateReader>().GetAllUiViews();
foreach (var view in views)
{
var viewState = UiViewState.Create(_acDomain, view);
_viewDicById.Add(view.Id, viewState);
FunctionState function;
if (!_acDomain.FunctionSet.TryGetFunction(view.Id, out function))
{
throw new NotExistException("意外的功能标识" + view.Id);
}
if (!_viewDicByFunction.ContainsKey(function))
{
_viewDicByFunction.Add(function, viewState);
}
}
_initialized = true;
_acDomain.MessageDispatcher.DispatchMessage(new MemorySetInitializedEvent(this));
}
}
private void Handle(IAcSession acSession, IUiViewUpdateIo input, bool isCommand)
{
var acDomain = _set._acDomain;
var viewRepository = acDomain.RetrieveRequiredService <IRepository <UiView> >();
UiViewState bkState;
if (!acDomain.UiViewSet.TryGetUiView(input.Id, out bkState))
{
throw new NotExistException();
}
UiView entity;
var stateChanged = false;
lock (Locker)
{
UiViewState state;
if (!acDomain.UiViewSet.TryGetUiView(input.Id, out state))
{
throw new NotExistException();
}
entity = viewRepository.GetByKey(input.Id);
if (entity == null)
{
throw new NotExistException();
}
entity.Update(input);
var newState = UiViewState.Create(acDomain, entity);
stateChanged = newState != bkState;
if (stateChanged)
{
Update(newState);
}
if (isCommand)
{
try
{
viewRepository.Update(entity);
viewRepository.Context.Commit();
}
catch
{
if (stateChanged)
{
Update(bkState);
}
viewRepository.Context.Rollback();
throw;
}
}
}
if (isCommand && stateChanged)
{
acDomain.MessageDispatcher.DispatchMessage(new UiViewUpdatedEvent(acSession, entity, input, isPrivate: true));
}
}
private void Handle(IAcSession acSession, IUiViewCreateIo input, bool isCommand)
{
var acDomain = _set._acDomain;
var viewDicByFunction = _set._viewDicByFunction;
var viewDicById = _set._viewDicById;
var viewRepository = acDomain.RetrieveRequiredService <IRepository <UiView> >();
if (!input.Id.HasValue)
{
throw new ValidationException("标识是必须的");
}
UiView entity;
lock (Locker)
{
FunctionState function;
if (!acDomain.FunctionSet.TryGetFunction(input.Id.Value, out function))
{
throw new ValidationException("意外的功能标识，界面视图首先是个功能。请先添加界面视图对应的功能记录。");
}
UiViewState view;
if (acDomain.UiViewSet.TryGetUiView(input.Id.Value, out view))
{
throw new ValidationException("给定标识的界面视图已经存在");
}
entity = UiView.Create(input);
var state = UiViewState.Create(acDomain, entity);
if (!viewDicById.ContainsKey(state.Id))
{
viewDicById.Add(state.Id, state);
}
if (!viewDicByFunction.ContainsKey(function))
{
viewDicByFunction.Add(function, state);
}
if (isCommand)
{
try
{
viewRepository.Add(entity);
viewRepository.Context.Commit();
}
catch
{
if (viewDicById.ContainsKey(entity.Id))
{
viewDicById.Remove(entity.Id);
}
if (viewDicByFunction.ContainsKey(function))
{
viewDicByFunction.Remove(function);
}
viewRepository.Context.Rollback();
throw;
}
}
}
if (isCommand)
{
acDomain.MessageDispatcher.DispatchMessage(new UiViewAddedEvent(acSession, entity, input, isPrivate: true));
}
}
