public object Resolve(Type t, object[] parameters = null, IIocContainerFlags flags = IIocContainerFlags.None)
{
var typeofT = t;
object newInstance = null;
var stateManager = StateManager.Current;
if (SurrogatesDirectory.IsSurrogateRegistered(typeofT))
{
//Surrogates are created as top level objects
//however reference tracking is important because surrogates with no references
//are not persisted
if (parameters == null || parameters.Length == 0)
{
//We must create a new instance, instance creation mechanism must be located from
//the surrogates directory
newInstance = SurrogatesDirectory.CreateInstanceFor(typeofT);
}
else
{
newInstance = parameters[0];
}
var surrogate = stateManager.surrogateManager.GetSurrogateFor(newInstance, generateIfNotFound: true);
return(newInstance);
}
try
{
var isRecoveredFromStorage = (flags & IIocContainerFlags.RecoveredFromStorage) == IIocContainerFlags.RecoveredFromStorage;
if (!isRecoveredFromStorage)
{
if (t.GetCustomAttributes(typeof(Singleton), false).Length > 0)
{
flags = flags | IIocContainerFlags.IsSinglenton;
newInstance = StateManager.Current.GetObject(UniqueIDGenerator.GetSinglentonUniqueId(t));
if ((flags & IIocContainerFlags.SinglentonNonReturnIfExisting) == IIocContainerFlags.SinglentonNonReturnIfExisting)
{
if (newInstance != null)
{
return(null);
}
}
if ((flags & IIocContainerFlags.SinglentonReturnIfExisting) == IIocContainerFlags.SinglentonReturnIfExisting)
{
if (newInstance != null)
{
return(newInstance);
}
}
//At this point the object was recovered from storage and it the RecoveredFromStorageFlags must
//added to avoid unnecessary further processing of this object
isRecoveredFromStorage = (newInstance != null);
}
}
newInstance = newInstance ?? ResolveUnPrepared(t, isRecoveredFromStorage);
if (newInstance is IViewManager)
{
//Nothing to do
}
else if (newInstance is ILogic)
{
InitializeObject(stateManager, this, (ILogic)newInstance, parameters, t, isRecoveredFromStorage, flags);
}
else if (newInstance is IStateObject)
{
if (!isRecoveredFromStorage)
{
InitializeObject(stateManager, this, (IStateObject)newInstance, parameters, t, flags);
}
}
else
{
if (!alreadyAssertedTypes.Contains(t))
{
alreadyAssertedTypes.Add(t);
Trace.TraceError("IocContainerImplWithUInity::Resolve WARNING: Type to resolved [" + t.FullName + "] is not an IStateObject, so there is no tracking or serialization available for that object");
}
}
}
finally
{
if (newInstance is IStateObject)
{
stateManager.RemoveIDInResolution(((IStateObject)newInstance).UniqueID);
}
}
return(newInstance);
}
