/// <summary>
/// Resolve the route of a <see cref="Thing"/> from a <see cref="IEnumerable{Thing}"/> that contains all its containers
/// </summary>
/// <param name="thing">The <see cref="Thing"/> to resolve</param>
/// <param name="dtolist">The <see cref="IEnumerable{Thing}"/> that shall contain</param>
/// <param name="session">The <see cref="ISession"/> associated to the <see cref="Thing"/></param>
/// <exception cref="ArgumentNullException">The arguments cannot be null</exception>
/// <exception cref="InstanceNotFoundException">If the container cannot be found</exception>
/// <exception cref="InvalidOperationException">If the multiple containers are found for one thing</exception>
/// <exception cref="NullReferenceException">The containement tree is broken for a <see cref="Poco"/> currently in the <see cref="ISession"/></exception>
public static void ResolveRoute(this Thing thing, IEnumerable <Thing> dtolist, ISession session)
{
if (dtolist == null)
{
throw new ArgumentNullException("dtolist");
}
if (session == null)
{
throw new ArgumentNullException("session");
}
if (thing is TopContainer)
{
return;
}
var dtos = dtolist.ToList();
Thing container = dtos.SingleOrDefault(dto => dto.Contains(thing));
if (container == null)
{
// the container is not in the list of dtos, search in the current ISession
Lazy <Poco> lazyThing;
var res = session.Assembler.Cache.TryGetValue(new CacheKey(thing.Iid, thing.IterationContainerId), out lazyThing);
if (!res)
{
throw new InstanceNotFoundException(string.Format("The {0} with id {1} could not be found", thing.ClassKind, thing.Iid));
}
// Build the complete containement tree
thing.AddContainerCompleteTree(lazyThing.Value);
return;
}
// the container is in the list of dtos
thing.AddContainer(container.ClassKind, container.Iid);
while (!(container is TopContainer))
{
var previousContainer = container;
container = dtos.SingleOrDefault(dto => dto.Contains(container));
if (container != null)
{
thing.AddContainer(container.ClassKind, container.Iid);
continue;
}
// one of the container nnot be found in the list of dto => search in the current ISession and build the partial tree up to the topcontainer
Lazy <Poco> lazyThing;
var res = session.Assembler.Cache.TryGetValue(new CacheKey(previousContainer.Iid, previousContainer.IterationContainerId), out lazyThing);
if (!res)
{
throw new InstanceNotFoundException(string.Format("The {0} with id {1} could not be found", previousContainer.ClassKind, previousContainer.Iid));
}
thing.AddContainerPartialTree(lazyThing.Value);
break;
}
}
