static void HandleInvariantPolicySetChanged(object sender, PolicyChangedEventArgs e)
{
PolicySet pset = GetPolicySet("Invariant");
object p = pset.Get(e.PolicyType, e.Scope);
if (p != null)
{
invariantPolicies.InternalSet(e.PolicyType, e.Scope, p);
}
else
{
invariantPolicies.InternalSet(e.PolicyType, e.Scope, Activator.CreateInstance(e.PolicyType));
}
}
internal static ScopedPolicy DiffDeserialize(DataNode data)
{
DataItem item = (DataItem)data;
DataValue inheritVal = item.ItemData ["inheritsSet"] as DataValue;
if (inheritVal == null || inheritVal.Value == "null")
{
return(RawDeserialize(data));
}
Type t = GetRegisteredType(data.Name);
if (t == null)
{
UnknownPolicy up = new UnknownPolicy(data);
return(new ScopedPolicy(typeof(UnknownPolicy), up, up.Scope));
}
item.ItemData.Remove(inheritVal);
PolicySet set = GetSet(inheritVal.Value);
if (set == null)
{
throw new InvalidOperationException("No policy set found for id '" + inheritVal.Value + "'");
}
DataValue inheritScope = item.ItemData.Extract("inheritsScope") as DataValue;
object baseItem = set.Get(t, inheritScope != null ? inheritScope.Value : null);
if (baseItem == null)
{
string msg = "Policy set '" + set.Id + "' does not contain a policy for '" + data.Name + "'";
if (inheritScope != null)
{
msg += ", scope '" + inheritScope.Value + "'";
}
msg += ". This policy is likely provided by an addin that is not currently installed.";
throw new InvalidOperationException(msg);
}
DataValue scopeVal = item.ItemData.Extract("scope") as DataValue;
DataNode baseline = RawSerialize(t, baseItem);
ScopedPolicy p = RawDeserialize(ApplyOverlay(baseline, data));
return(new ScopedPolicy(t, p.Policy, scopeVal != null ? scopeVal.Value : null));
}
public static T GetDefaultPolicy <T> () where T : class, IEquatable <T>, new ()
{
return(defaultPolicies.Get <T> () ?? new T());
}