public void Save(Resource resource)
{
lock (Graph.GetWrapper(resource.Id) ?? _fallbackLock)
{
using (var uow = UowFactory.Create())
{
var newResources = new HashSet <Resource>();
var entity = ResourceEntityAccessor.SaveToEntity(uow, resource);
if (entity.Id == 0)
{
newResources.Add(resource);
}
var newInstances = ResourceLinker.SaveReferences(uow, resource, entity);
newResources.AddRange(newInstances);
try
{
uow.SaveChanges();
}
catch (Exception ex)
{
Logger.LogException(LogLevel.Error, ex, "Error saving resource {0}-{1}!", resource.Id, resource.Name);
throw;
}
foreach (var instance in newResources)
{
AddResource(instance, true);
}
}
}
}
public Resource Instantiate(string type)
{
// Create simplified template and instantiate
var template = new ResourceEntityAccessor {
Type = type
};
var instance = template.Instantiate(TypeController, this);
// Initially set name to value of DisplayNameAttribute if available
var typeObj = instance.GetType();
var displayNameAttr = typeObj.GetCustomAttribute <DisplayNameAttribute>();
instance.Name = displayNameAttr?.DisplayName ?? typeObj.Name;
return(instance);
}
public void Initialize()
{
// Set delegates on graph
Graph.SaveDelegate = Save;
Graph.DestroyDelegate = Destroy;
_startup = ResourceStartupPhase.LoadResources;
using (var uow = UowFactory.Create(ContextMode.AllOff))
{
// Create all objects
var allResources = ResourceEntityAccessor.FetchResourceTemplates(uow);
if (allResources.Count > 0)
{
LoadResources(allResources);
}
else
{
Logger.Log(LogLevel.Warning, "The ResourceManager initialized without a resource." +
"Execute a resource initializer to add resources with \"exec ResourceManager initialize\"");
}
}
_startup = ResourceStartupPhase.Initializing;
// Boot resources
Parallel.ForEach(Graph.GetAll(), resourceWrapper =>
{
try
{
resourceWrapper.Initialize();
}
catch (Exception e)
{
resourceWrapper.ErrorOccured();
Logger.LogException(LogLevel.Warning, e, "Failed to initialize resource {0}-{1}", resourceWrapper.Target.Id, resourceWrapper.Target.Name);
}
});
_startup = ResourceStartupPhase.Initialized;
}
/// <summary>
/// Get or create an entity for a resource instance
/// </summary>
private static ResourceEntity GetOrCreateEntity(ReferenceSaverContext context, Resource instance)
{
// First check if the context contains an entity for the instance
if (context.EntityCache.ContainsKey(instance))
{
return(context.EntityCache[instance]);
}
ResourceEntity entity;
if (instance.Id > 0)
{
entity = context.UnitOfWork.GetEntity <ResourceEntity>(instance);
}
else
{
entity = ResourceEntityAccessor.SaveToEntity(context.UnitOfWork, instance);
context.ResourceLookup[entity] = instance;
}
// Get or create an entity for the instance
return(context.EntityCache[instance] = entity);
}
/// <summary>
/// Build object graph from simplified <see cref="ResourceEntityAccessor"/> and flat resource list
/// </summary>
private void LinkReferences(ResourceEntityAccessor entityAccessor)
{
ResourceLinker.LinkReferences(entityAccessor.Instance, entityAccessor.Relations);
}
