private void InterceptGetter(IInvocation invocation, CodeFirstLazyInitialiser codeFirstLazyInitialiser)
{
if (!codeFirstLazyInitialiser.IsDone)
{
CodeFirstModelContext.ReinstateContext(invocation.InvocationTarget);
codeFirstLazyInitialiser.Execute();
CodeFirstModelContext.ResetContext();
}
}
private CodeFirstModelContext Clone()
{
var result = new CodeFirstModelContext();
result.ContentType = ContentType;
result.CurrentTab = CurrentTab;
result.CurrentProperty = CurrentProperty;
result.CurrentComposition = CurrentComposition;
result.ParentContext = ParentContext;
return(result);
}
internal static CodeFirstModelContext GetCompositionParentContext(ContentTypeCompositionRegistration registration)
{
var newContext = new CodeFirstModelContext()
{
ContentType = _currentFrame.ContentType, //should never be null - compositions only exist on documents, which would have a context
CurrentComposition = registration
};
//TODO needed?
_currentFrame = newContext;
return(newContext);
}
private static CodeFirstModelContext RegisterFrozenContext(object key, CodeFirstModelContext context)
{
if (ContextContainer.Current == null || ContextContainer.Current.Dictionary == null || context == null)
{
return(null);
}
if (!ContextContainer.Current.Dictionary.ContainsKey(key))
{
ContextContainer.Current.Dictionary.Add(key, context);
}
_currentFrame = context;
return(ContextContainer.Current.Dictionary[key]);
}
internal static void ReinstateContext(object key)
{
if (ContextContainer.Current == null || ContextContainer.Current.Dictionary == null)
{
return;
}
var target = GetContext(key);
if (_currentFrame != null)
{
_stack.Push(_currentFrame);
}
_currentFrame = target;
}
internal static void ResetContext()
{
if (ContextContainer.Current == null || ContextContainer.Current.Dictionary == null)
{
return;
}
if (_stack.Count > 0)
{
_currentFrame = _stack.Pop();
}
else
{
_currentFrame = null;
}
}
internal static void MoveNextContext(object instance, CodeFirstRegistration registration, CodeFirstModelContext parentContext = null)
{
if (ContextContainer.Current == null || ContextContainer.Current.Dictionary == null)
{
return;
}
else if (!ContextContainer.Current.Dictionary.ContainsKey(instance))
{
if (registration is ContentTypeRegistration)
{
var newContext = new CodeFirstModelContext()
{
ContentType = (registration as ContentTypeRegistration),
ParentContext = parentContext == null ? parentContext : _currentFrame
};
if (_currentFrame != null)
{
_stack.Push(_currentFrame);
}
_currentFrame = newContext;
ContextContainer.Current.Dictionary.Add(instance, _currentFrame);
}
else if (registration is TabRegistration)
{
var newContext = _currentFrame.Clone();
newContext.CurrentTab = registration as TabRegistration;
_currentFrame = newContext;
ContextContainer.Current.Dictionary.Add(instance, _currentFrame);
}
else if (registration is PropertyRegistration)
{
var newContext = _currentFrame.Clone();
newContext.CurrentProperty = registration as PropertyRegistration;
_currentFrame = newContext;
ContextContainer.Current.Dictionary.Add(instance, _currentFrame);
}
else
{
throw new InvalidOperationException("Unknown context registration type");
}
}
}
internal static object CreateContextualInstance(Type type, CodeFirstRegistration registration, out Dictionary <PropertyInfo, CodeFirstLazyInitialiser> dict, CodeFirstModelContext parentContext = null, bool useProxy = true)
{
if (CodeFirstManager.Current.Features.UseLazyLoadingProxies && useProxy)
{
dict = new Dictionary <PropertyInfo, CodeFirstLazyInitialiser>();
var proxy = _generator.CreateClassProxy(type, _opts, new CodeFirstProxyInterceptor(dict));
MoveNextContext(proxy, registration, parentContext);
return(proxy);
}
else
{
dict = null;
var instance = Activator.CreateInstance(type);
MoveNextContext(instance, registration, parentContext);
return(instance);
}
}
