/// <summary>
/// Adds a reference to the source object on the specified target object
/// </summary>
/// <param name="sourceObject">The object to add a reference to</param>
/// <param name="targetObject">The object to add the reference on</param>
private void AddReference(MAObjectHologram sourceObject, MAObjectHologram targetObject)
{
if (this.BackLinkAttribute.IsMultivalued)
{
if (!targetObject.HasAttributeValue(this.BackLinkAttribute, sourceObject.ObjectID))
{
targetObject.UpdateAttributeValue(this.BackLinkAttribute, new List <ValueChange>()
{
ValueChange.CreateValueAdd(sourceObject.ObjectID)
});
}
}
else
{
targetObject.SetAttributeValue(this.BackLinkAttribute, sourceObject.ObjectID);
}
}
/// <summary>
/// Constructs a target attribute value based on the rules in the constructor
/// </summary>
/// <param name="hologram">The object to construct the value for</param>
internal override void Execute(MAObjectHologram hologram)
{
List <ValueChange> valueChanges = new List <ValueChange>();
AcmaAttributeModificationType modificationType;
if (this.ModificationType == AcmaAttributeModificationType.Conditional)
{
if (!this.HasPresenceConditions)
{
throw new InvalidOperationException("The constructor has a conditional modification type, but no presence conditions were present");
}
if (this.PresenceConditions.Evaluate(hologram))
{
if (this.Attribute.IsMultivalued)
{
modificationType = AcmaAttributeModificationType.Add;
}
else
{
modificationType = AcmaAttributeModificationType.Replace;
}
Logger.WriteLine("Presence conditions met", LogLevel.Debug);
}
else
{
modificationType = AcmaAttributeModificationType.Delete;
Logger.WriteLine("Presence conditions not met", LogLevel.Debug);
}
}
else
{
modificationType = this.ModificationType;
}
foreach (ValueDeclaration declaration in this.ValueDeclarations)
{
IList <object> returnValue = declaration.Expand(hologram);
if (returnValue == null)
{
continue;
}
else
{
foreach (object value in returnValue)
{
object newValue = TypeConverter.ConvertData(value, this.Attribute.Type);
if (newValue != null && !(newValue is string && string.IsNullOrWhiteSpace((string)newValue)))
{
if (modificationType == AcmaAttributeModificationType.Delete)
{
if (hologram.HasAttributeValue(this.Attribute, newValue))
{
valueChanges.Add(this.CreateValueChange(newValue, ValueModificationType.Delete));
}
}
else if (modificationType == AcmaAttributeModificationType.Add)
{
if (this.Attribute.IsMultivalued)
{
if (!hologram.HasAttributeValue(this.Attribute, newValue))
{
valueChanges.Add(this.CreateValueChange(newValue, ValueModificationType.Add));
}
}
else
{
valueChanges.Add(this.CreateValueChange(newValue, ValueModificationType.Add));
}
}
else if (modificationType == AcmaAttributeModificationType.Replace)
{
valueChanges.Add(this.CreateValueChange(newValue, ValueModificationType.Add));
}
else
{
throw new InvalidOperationException("The modification type was unexpected at this location");
}
}
}
}
}
valueChanges = valueChanges.Distinct(this.ValueChangeComparer).ToList();
this.ApplyValueChanges(hologram, valueChanges, modificationType);
this.RaiseCompletedEvent();
}