private Type getTargetType(WorkContext work, string typeName)
{
const string PORTAL_PREFIX = @"!#PORTAL\";
if (typeName.IsNullOrWhiteSpace()) return null;
Type result = null;
string key;
if (work.Portal==null)
key = typeName;
else
key = PORTAL_PREFIX+work.Portal.Name+typeName;
//1 Lookup in cache
if (m_Lookup.TryGetValue(key, out result)) return result;
//2 Lookup in locations
result = lookupTargetInLocations(work, typeName);
if (result!=null)
{
var lookup = new TypeLookup(m_Lookup);//thread safe copy
lookup[key] = result;//other thread may have added already
m_Lookup = lookup;//atomic
return result;
}
return null;//404 error - type not found
}
public TypeLookup(TypeLookup clone) : base(clone, StringComparer.Ordinal)
{
}