public static void copyFields(DataObject o1, DataObject o2, bool copy = false)
{
string json = toJson(o1);
JsonSerializer serializer = new JsonSerializer();
serializer.write = false;
serializer.copyGuids = copy;
serializer.obj = new JsonObject(json);
serializer.readObjectBody(() =>
{
o2.AddFields(serializer);
}, serializer.obj);
if (copy)
{
serializer.UpdateReferences();
}
}
private void writeObject(DataObject data, String key, Type type)
{
if (data == null)
{
if (key == null)
{
writer.nul();
}
else
{
writer.nul(key);
}
return;
}
int index = seenObjectIndex(data);
if (index >= 0)
{
if (key == null)
{
writer.value(index);
}
else
{
writer.value(key, index);
}
return;
}
index = seenObjects.Count;
seenObjects.Add(data);
writeObjectJson(key, () =>
{
writer.value(makeKey(CLASS), className(type));
writer.value(makeKey(ID), index);
if (data is GuidDataObject)
{
context.Add(data as GuidDataObject);
}
data.AddFields(this);
});
}
private DataObject read(JsonObject obj, bool skipUnknownClasses = false)
{
if (obj == null)
{
return(null);
}
if (!obj.containsKey(ID))
{
return(null);
}
// First check to see if it's been created, and if so simply return it
int id = obj.getInt(ID);
if (id < seenObjects.Count)
{
DataObject seen = seenObjects[id];
if (seen != null)
{
return(seen);
}
}
// Create the (unpopulated) object and register it
String className = obj.getString(CLASS);
if (className == null)
{
return(null);
}
DataObject data = Constructor.Construct(className, skipUnknownClasses);
while (seenObjects.Count <= id)
{
seenObjects.Add(null);
}
seenObjects[id] = data;
// Instantiate the children of this object in the JSON file
// This is done to create objects whose parents may no longer
// exist in the data-structure, but who are themselves still
// referenced. This occurs when fields are removed from a class.
foreach (var kvp in obj.Entries)
{
object value = kvp.Value;
List <object> list = value as List <object>;
if (list != null)
{
foreach (object entry in list)
{
read(entry as Dictionary <string, object>, true);
}
}
read(value as Dictionary <string, object>, true);
}
// If there's not corresponding C# class, we stop here.
// This may happen if the class was deleted, but its data
// is still in an older JSON file.
if (data == null)
{
return(null);
}
// Now actually populate the object, having guaranteed
// that all its children have been created (but not
// necessarily populated!)
readObjectBody(() =>
{
makeKey(CLASS);
makeKey(ID);
data.AddFields(this);
if (data is GuidDataObject)
{
context.Add(data as GuidDataObject);
}
}, obj);
return(data);
}
