static async Task <int> DefaultNewIdGenerator(Type type)
{
// One generator per hierarchy
if (type.BaseType != typeof(IntEntity))
{
return(await DefaultNewIdGenerator(type.BaseType));
}
var initialize = (Func <Type, Task <int> >)(async(t) =>
{
if (TransientEntityAttribute.IsTransient(t))
{
return(1);
}
var biggestId = ((await Database.Of(t).OrderBy("ID", descending: true)
.Top(1).GetList()).FirstOrDefault()?.GetId());
if (biggestId != null)
{
return(1 + (int)biggestId);
}
else
{
return(1);
}
});
var value = await initialize(type);
return(LastUsedIds.AddOrUpdate(type, value, (t, old) => old + 1));
}
static async Task <int> DefaultNewIdGenerator(Type type)
{
// One generator per hierarchy
if (type.BaseType != typeof(IntEntity))
{
return(await DefaultNewIdGenerator(type.BaseType));
}
async Task <int> initialize(Type typ)
{
if (TransientEntityAttribute.IsTransient(typ))
{
return(1);
}
var biggestId = await Context.Current.Database()
.Of(typ).OrderBy("ID", descending: true)
.Top(1).GetList().Select(x => x.GetId()).FirstOrDefault();
if (biggestId != null)
{
return(1 + (int)biggestId);
}
else
{
return(1);
}
}
var value = await initialize(type);
return(LastUsedIds.AddOrUpdate(type, value, (t, old) => old + 1));
}
public static IEnumerable <Type> SearchForPossibleTypes(Type baseType, bool mustFind)
{
IEnumerable <Type> result;
if (baseType == null || baseType == typeof(Entity))
{
result = GetDomainEntityTypes();
}
else if (baseType.IsInterface)
{
result =
Entity.Database.AssemblyProviderFactories.Except(f => f.Value.SupportsPolymorphism())
.Select(a => a.Key).Where(a => a.References(baseType.Assembly)).Concat(baseType.Assembly)
.SelectMany(a => a.GetExportedTypes())
.Where(t => t.Implements(baseType)).ToList();
}
else
{
result = baseType.Assembly.GetExportedTypes().Where(t => t.GetParentTypes().Contains(baseType)).Union(new[] { baseType });
}
result = result
// Not transient objects:
.Where(t => !TransientEntityAttribute.IsTransient(t))
// No abstract or interface:
.Where(t => !t.IsAbstract && !t.IsInterface)
// Unless the type is marked non-persistent:
.Where(t => PersistentAttribute.IsTypePersistent(t))
// Leaf nodes first (most concrete):
.OrderByDescending(t => t.GetParentTypes().Count());
result = result.Except(new[] { typeof(IApplicationEvent) }).ToArray();
if (result.None())
{
if (baseType != null && mustFind)
{
throw new ArgumentException($"No type in the current application domain can be the implementation of the type {baseType.FullName}.");
}
else if (mustFind)
{
throw new ArgumentException("No type in the current application domain implements Entity.");
}
}
return(result);
}
public static IEnumerable <Type> SearchForPossibleTypes(Type baseType, bool mustFind)
{
IEnumerable <Type> result;
if (baseType == null || baseType == typeof(Entity))
{
result = GetDomainEntityTypes();
}
else if (baseType.IsInterface)
{
result = AppDomain.CurrentDomain.FindImplementers(baseType);
}
else
{
result = baseType.Assembly.GetExportedTypes().Where(t => t.GetParentTypes().Contains(baseType)).Union(new[] { baseType });
}
Log.For(typeof(EntityFinder)).Info("Found :" + result.Select(c => c.FullName).ToString("|"));
result = result
// Not transient objects:
.Where(t => !TransientEntityAttribute.IsTransient(t))
// No abstract or interface:
.Where(t => !t.IsAbstract && !t.IsInterface)
// Unless the type is marked non-persistent:
.Where(t => PersistentAttribute.IsTypePersistent(t))
// Leaf nodes first (most concrete):
.OrderByDescending(t => t.GetParentTypes().Count());
Log.For(typeof(EntityFinder)).Info("Desirable types :" + result.Select(c => c.FullName).ToString("|"));
if (result.None())
{
if (baseType != null && mustFind)
{
throw new ArgumentException($"No type in the current application domain can be the implementation of the type {baseType.FullName}.");
}
else if (mustFind)
{
throw new ArgumentException("No type in the current application domain implements Entity.");
}
}
return(result);
}
