private SetterMethod Read(IDataReader reader, ObjectMember field, object value, Dictionary <string, object> values)
{
string name = field.Name;
if (!reader.IsEmptyElement)
{
var serializerAttribute = field.Member.GetCustomAttribute <CustomFormatterAttribute>(false);
var serializer = serializerAttribute?.Formatter ?? FormatterFromReader(reader, out var type);
int cycleId = reader.ReadId();
reader.ReadStartNode(name);
object cycleValue = values[name] = serializer.Read(reader, value);
if (CycleUtility.ValidCycleType(serializer.Type))
{
CycleUtility.GetInstance(reader).AddReference(cycleId, cycleValue);
}
reader.ReadEndNode(name);
// no setter method required
return(null);
}
else
{
SetterMethod referenceReader = ReadReferencedObject(reader, field.Set);
values[name] = null;
reader.ReadEmptyNode(field.Name);
return(referenceReader);
}
}
private object ReadArray(IDataReader reader, object o)
{
List <SetterFunction> objectGetters = new List <SetterFunction>();
long arrayLength = reader.ReadArrayLength();
for (long i = 0; i < arrayLength; i++)
{
objectGetters.Add(DeserializeItem(reader));
}
Array array = (Array)Activator.CreateInstance(Type, objectGetters.Count);
var cycleUtility = CycleUtility.GetInstance(reader);
cycleUtility.AddCycleSetter(setArray);
return(array);
void setArray()
{
for (int i = 0; i < objectGetters.Count; i++)
{
array.SetValue(objectGetters[i].Invoke(), i);
}
}
}
public static CycleUtility GetInstance(IDataWriter writer)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (!writerCycles.TryGetValue(writer, out var cycleUtility))
{
cycleUtility = new CycleUtility();
writerCycles.Add(writer, cycleUtility);
}
return(cycleUtility);
}
private SetterFunction ReadCyclicObject(IDataReader reader)
{
var cycleUtility = CycleUtility.GetInstance(reader);
int refId = reader.ReadReference();
if (refId >= 0)
{
return(() => cycleUtility.FromReference(refId));
}
else
{
return(null);
}
}
private SetterMethod ReadReferencedObject(IDataReader reader, ObjectSetter setter)
{
var cycleUtility = CycleUtility.GetInstance(reader);
int id = reader.ReadReference();
if (id >= 0)
{
return((obj) => setter(obj, cycleUtility.FromReference(id)));
}
else
{
return(null);
}
}
private object ReadList(IDataReader reader, object o)
{
IList list = (IList)Activator.CreateInstance(Type);
var cycleUtility = CycleUtility.GetInstance(reader);
long arrayLength = reader.ReadArrayLength();
for (long i = 0; i < arrayLength; i++)
{
var func = DeserializeItem(reader);
cycleUtility.AddCycleSetter(() => list.Add(func()));
}
return(list);
}
public object Read(IDataReader reader, object o)
{
var values = new Dictionary <string, object>();
var cycleActions = new List <SetterMethod>();
foreach (var field in members)
{
if (field.HasGetter())
{
object existingValue = o == null ? null : field.Get(o);
var action = Read(reader, field, existingValue, values);
if (action != null)
{
cycleActions.Add(action);
}
}
}
if (o == null)
{
if (constructor == null)
{
o = FormatterServices.GetSafeUninitializedObject(Type);
}
else
{
o = constructor.Info.Invoke(GetConstructorParameters(values, constructor.Attribute));
}
}
foreach (var field in members)
{
if (field.HasSetter())
{
var value = values[field.Name];
field.Set(o, value);
}
}
if (cycleActions.Count > 0)
{
var cycleUtility = CycleUtility.GetInstance(reader);
cycleUtility.AddCycleSetters(cycleActions.Select(e => (Action)(() => e.Invoke(o))));
}
return(o);
}
public T Deserialize <T>(IDataReader reader, object obj)
{
object value = null;
var type = typeof(T);
if (!reader.IsEmptyElement)
{
var formatter = FormatterFactory.Get(type);
int id = reader.ReadId();
reader.ReadStartNode(type.Name);
value = formatter.Read(reader, obj);
if (id > -1)
{
CycleUtility.GetInstance(reader).AddReference(id, value);
}
reader.ReadEndNode(type.Name);
}
CycleUtility.RemoveInstance(reader);
return((T)value);
}
public void Serialize(IDataWriter writer, object obj)
{
try
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
var type = obj.GetType();
var formatter = FormatterFactory.Get(type);
writer.WriteStartNode(type.Name);
formatter.Write(writer, obj);
writer.WriteEndNode(type.Name);
CycleUtility.RemoveInstance(writer);
}
catch
{
}
}
public void Write(IDataWriter writer, object o)
{
if (CycleUtility.ValidCycleType(o.GetType()))
{
var cycleUtil = CycleUtility.GetInstance(writer);
if (cycleUtil.TryGetReferenceId(o, out int id))
{
writer.WriteReference(id);
return;
}
else
{
writer.WriteId(id);
}
}
foreach (var field in members)
{
if (field.HasGetter())
{
var fieldValue = field.Get(o);
Write(writer, field, fieldValue);
}
}
}
