public void DeleteInstance(NdfObject inst)
{
Instances.Remove(inst);
NdfClass cls = inst.Class;
cls.Instances.Remove(inst);
if (TopObjects.Contains(inst.Id))
{
TopObjects.Remove(inst.Id);
}
}
public void AddEmptyProperties(NdfObject instance)
{
foreach (NdfProperty property in instance.Class.Properties)
{
if (instance.PropertyValues.All(x => x.Property != property))
{
instance.PropertyValues.Add(new NdfPropertyValue(instance)
{
Property = property,
Value = new NdfNull()
});
}
}
}
public NdfObject CreateInstanceOf(NdfClass cls, bool isTopLevelInstance = true)
{
var newId = (uint)Instances.Count();
var inst = new NdfObject {
Class = cls, Id = newId
};
AddEmptyProperties(inst);
Instances.Add(inst);
if (isTopLevelInstance)
{
TopObjects.Add(inst.Id);
inst.IsTopObject = true;
}
return(inst);
}
public void AddEmptyProperties(NdfObject instance)
{
foreach (NdfProperty property in instance.Class.Properties)
if (instance.PropertyValues.All(x => x.Property != property))
instance.PropertyValues.Add(new NdfPropertyValue(instance)
{
Property = property,
Value = new NdfNull()
});
}
public void DeleteInstance(NdfObject inst)
{
Instances.Remove(inst);
NdfClass cls = inst.Class;
cls.Instances.Remove(inst);
if (TopObjects.Contains(inst.Id))
TopObjects.Remove(inst.Id);
}
public NdfObject CreateInstanceOf(NdfClass cls, bool isTopLevelInstance = true)
{
var newId = (uint)Instances.Count();
var inst = new NdfObject { Class = cls, Id = newId };
AddEmptyProperties(inst);
Instances.Add(inst);
if (isTopLevelInstance)
{
TopObjects.Add(inst.Id);
inst.IsTopObject = true;
}
return inst;
}
public NdfPropertyValue(NdfObject instance)
{
_instance = instance;
DetailsCommand = new ActionCommand(DetailsCommandExecute);
}
public NdfPropertyValue(NdfObject instance)
{
_instance = instance;
DetailsCommand = new ActionCommand(DetailsCommandExecute);
}
/// <summary>
/// Reads one object instance.
/// </summary>
/// <param name="ms"></param>
/// <param name="index"></param>
/// <param name="owner"></param>
/// <returns></returns>
protected NdfObject ReadObject(Stream ms, uint index, NdfBinary owner)
{
var instance = new NdfObject { Id = index };
if (owner.TopObjects.Contains(index))
instance.IsTopObject = true;
var buffer = new byte[4];
ms.Read(buffer, 0, buffer.Length);
int classId = BitConverter.ToInt32(buffer, 0);
if (owner.Classes.Count < classId)
throw new InvalidDataException("Object without class found.");
NdfClass cls = instance.Class = owner.Classes[classId];
cls.Instances.Add(instance);
// Read properties
for (; ; )
{
ms.Read(buffer, 0, buffer.Length);
uint propertyId = BitConverter.ToUInt32(buffer, 0);
if (propertyId == 0xABABABAB)
break;
var propVal = new NdfPropertyValue(instance)
{
Property = cls.Properties.SingleOrDefault(x => x.Id == propertyId)
};
if (propVal.Property == null)
// throw new InvalidDataException("Found a value for a property which doens't exist in this class.");
foreach (var c in owner.Classes)
foreach (var p in c.Properties)
if (p.Id == propertyId)
{
propVal.Property = p;
break;
}
instance.PropertyValues.Add(propVal);
NdfValueWrapper res = ReadValue(ms, owner);
propVal.Value = res;
}
owner.AddEmptyProperties(instance);
return instance;
}
protected static NdfPropertyValue getProperty(NdfObject obj,string str)
{
return obj.PropertyValues.Single(x => x.Property.Name.Equals(str));
}
private NdfObject CopyInstance(NdfObject instToCopy)
{
NdfObject newInst = instToCopy.Class.Manager.CreateInstanceOf(instToCopy.Class, instToCopy.IsTopObject);
_copyInstanceResults.Add(newInst);
foreach (var propertyValue in instToCopy.PropertyValues)
{
if (propertyValue.Type == NdfType.Unset)
continue;
var receiver = newInst.PropertyValues.Single(x => x.Property == propertyValue.Property);
receiver.Value = GetCopiedValue(propertyValue);
}
instToCopy.Class.Instances.Add(newInst);
var cls = Classes.SingleOrDefault(x => x.Object == instToCopy.Class);
if (cls != null) cls.Instances.Add(new NdfObjectViewModel(newInst, cls.ParentVm));
return newInst;
}
