static void HandlePolicyTypeUpdated(object sender, ExtensionNodeEventArgs args)
{
Type t = ((DataTypeCodon)args.ExtensionNode).Class;
if (t == null)
{
throw new UserException("Type '" + ((DataTypeCodon)args.ExtensionNode).TypeName
+ "' not found. It could not be registered as a serializable type.");
}
string name = null;
object[] obs = t.GetCustomAttributes(typeof(DataItemAttribute), true);
if (obs != null && obs.Length > 0)
{
name = ((DataItemAttribute)obs[0]).Name;
}
if (String.IsNullOrEmpty(name))
{
name = t.Name;
}
switch (args.Change)
{
case ExtensionChange.Add:
if (policyTypes.ContainsKey(t))
{
throw new UserException("The Policy type '" + t.FullName + "' may only be registered once.");
}
if (policyNames.ContainsKey(name))
{
throw new UserException("Only one Policy type may have the ID '" + name + "'");
}
policyTypes.Add(t, name);
policyNames.Add(name, t);
if (invariantPolicies.Get(t) == null)
{
invariantPolicies.InternalSet(t, null, Activator.CreateInstance(t));
}
break;
case ExtensionChange.Remove:
policyTypes.Remove(t);
policyNames.Remove(name);
invariantPolicies.InternalRemove(t, null);
break;
}
}
