protected virtual PropertyDiff[] GetPropertyDiff(IDiffAdaptor currentAdaptor, object currentObject, IDiffAdaptor newAdaptor, object newObject)
{
ArrayList changes = new ArrayList();
Hashtable found = new Hashtable();
// Look for modified and deleted elements
if (currentObject != null)
{
foreach (object oldProp in currentAdaptor.GetProperties(currentObject))
{
string name = currentAdaptor.GetPropertyName(oldProp);
object newProp = newObject != null?newAdaptor.GetPropertyByName(newObject, name) : null;
if (newProp == null)
{
changes.Add(new PropertyDiff(DiffOperation.Remove, name, null));
}
else
{
found [name] = found;
string newValue = newAdaptor.GetPropertyValue(newObject, newProp);
if (newValue != currentAdaptor.GetPropertyValue(currentObject, oldProp))
{
changes.Add(new PropertyDiff(DiffOperation.Update, name, newValue));
}
}
}
}
// Look for new elements
if (newObject != null)
{
foreach (object newProp in newAdaptor.GetProperties(newObject))
{
string name = newAdaptor.GetPropertyName(newProp);
if (!found.ContainsKey(name))
{
changes.Add(new PropertyDiff(DiffOperation.Add, name, newAdaptor.GetPropertyValue(newObject, newProp)));
}
}
}
if (changes.Count == 0)
{
return(null);
}
return((PropertyDiff[])changes.ToArray(typeof(PropertyDiff)));
}
protected virtual PropertyDiff[] GetPropertyDiff (IDiffAdaptor currentAdaptor, object currentObject, IDiffAdaptor newAdaptor, object newObject)
{
ArrayList changes = new ArrayList ();
Hashtable found = new Hashtable ();
// Look for modified and deleted elements
if (currentObject != null) {
foreach (object oldProp in currentAdaptor.GetProperties (currentObject)) {
string name = currentAdaptor.GetPropertyName (oldProp);
object newProp = newObject != null ? newAdaptor.GetPropertyByName (newObject, name) : null;
if (newProp == null)
changes.Add (new PropertyDiff (DiffOperation.Remove, name, null));
else {
found [name] = found;
string newValue = newAdaptor.GetPropertyValue (newObject, newProp);
if (newValue != currentAdaptor.GetPropertyValue (currentObject, oldProp))
changes.Add (new PropertyDiff (DiffOperation.Update, name, newValue));
}
}
}
// Look for new elements
if (newObject != null) {
foreach (object newProp in newAdaptor.GetProperties (newObject)) {
string name = newAdaptor.GetPropertyName (newProp);
if (!found.ContainsKey (name))
changes.Add (new PropertyDiff (DiffOperation.Add, name, newAdaptor.GetPropertyValue (newObject, newProp)));
}
}
if (changes.Count == 0)
return null;
return (PropertyDiff[]) changes.ToArray (typeof(PropertyDiff));
}
