public EventSerializer(ITypeNameMapper typeNameMapper = null, ITypeConvertorGenerator typeConvertorGenerator = null)
{
TypeNameMapper = typeNameMapper ?? new FullNameTypeMapper();
ConvertorGenerator = typeConvertorGenerator ?? new DefaultTypeConvertorGenerator();
_id2Info.Add(null); // 0 = null
_id2Info.Add(null); // 1 = back reference
foreach (var predefinedType in BasicSerializersFactory.TypeDescriptors)
{
var infoForType = new SerializerTypeInfo
{
Id = _id2Info.Count,
Descriptor = predefinedType
};
_typeOrDescriptor2Info[predefinedType] = infoForType;
_id2Info.Add(infoForType);
_typeOrDescriptor2Info[predefinedType.GetPreferedType()] = infoForType;
var descriptorMultipleNativeTypes = predefinedType as ITypeDescriptorMultipleNativeTypes;
if (descriptorMultipleNativeTypes == null) continue;
foreach (var type in descriptorMultipleNativeTypes.GetNativeTypes())
{
_typeOrDescriptor2Info[type] = infoForType;
}
}
while (_id2Info.Count < ReservedBuildinTypes) _id2Info.Add(null);
}
public ITypeDescriptor Create(Type type)
{
SerializerTypeInfo result;
if (_typeOrDescriptor2Info.TryGetValue(type, out result)) return result.Descriptor;
if (_typeOrDescriptor2InfoNew.TryGetValue(type, out result)) return result.Descriptor;
ITypeDescriptor desc = null;
if (!type.IsSubclassOf(typeof(Delegate)))
{
if (type.IsGenericType)
{
if (type.GetGenericTypeDefinition().InheritsOrImplements(typeof(IList<>)))
{
desc = new ListTypeDescriptor(this, type);
}
else if (type.GetGenericTypeDefinition().InheritsOrImplements(typeof(IDictionary<,>)))
{
desc = new DictionaryTypeDescriptor(this, type);
}
}
else if (type.IsArray)
{
desc = new ListTypeDescriptor(this, type);
}
else if (type.IsEnum)
{
desc = new EnumTypeDescriptor(this, type);
}
else
{
desc = new ObjectTypeDescriptor(this, type);
}
}
if (desc == null) throw new BTDBException("Don't know how to serialize type " + type.ToSimpleName());
result = new SerializerTypeInfo
{
Id = 0,
Descriptor = desc
};
_typeOrDescriptor2InfoNew[desc] = result;
_typeOrDescriptor2InfoNew[type] = result;
if (!desc.FinishBuildFromType(this))
{
throw new BTDBException("Don't know how to serialize type " + type.ToSimpleName());
}
return desc;
}
public void StoreNewDescriptors(object obj)
{
if (obj == null) return;
for (var i = 0; i < _visited.Count; i++)
{
if (_visited[i] == obj) return;
}
_visited.Add(obj);
SerializerTypeInfo info;
var knowDescriptor = obj as IKnowDescriptor;
if (knowDescriptor != null)
{
if (!_typeOrDescriptor2Info.TryGetValue(knowDescriptor.GetDescriptor(), out info))
{
info = new SerializerTypeInfo
{
Id = 0,
Descriptor = knowDescriptor.GetDescriptor()
};
_typeOrDescriptor2InfoNew[knowDescriptor.GetDescriptor()] = info;
}
}
else
{
if (!_typeOrDescriptor2Info.TryGetValue(obj.GetType(), out info))
{
var desc = Create(obj.GetType());
info = _typeOrDescriptor2InfoNew[desc];
}
}
if (info.NestedObjGatherer == null)
{
info.NestedObjGatherer = BuildNestedObjGatherer(info.Descriptor, knowDescriptor == null ? obj.GetType() : null);
}
info.NestedObjGatherer(obj, this);
}
public void ProcessMetadataLog(ByteBuffer buffer)
{
var reader = new ByteBufferReader(buffer);
var typeId = reader.ReadVInt32();
while (typeId != 0)
{
var typeCategory = (TypeCategory)reader.ReadUInt8();
ITypeDescriptor descriptor;
switch (typeCategory)
{
case TypeCategory.BuildIn:
throw new ArgumentOutOfRangeException();
case TypeCategory.Class:
descriptor = new ObjectTypeDescriptor(this, reader, NestedDescriptorReader);
break;
case TypeCategory.List:
descriptor = new ListTypeDescriptor(this, reader, NestedDescriptorReader);
break;
case TypeCategory.Dictionary:
descriptor = new DictionaryTypeDescriptor(this, reader, NestedDescriptorReader);
break;
case TypeCategory.Enum:
descriptor = new EnumTypeDescriptor(this, reader);
break;
default:
throw new ArgumentOutOfRangeException();
}
while (-typeId - 1 >= _id2InfoNew.Count)
_id2InfoNew.Add(null);
if (_id2InfoNew[-typeId - 1] == null)
_id2InfoNew[-typeId - 1] = new SerializerTypeInfo { Id = typeId, Descriptor = descriptor };
typeId = reader.ReadVInt32();
}
for (var i = 0; i < _id2InfoNew.Count; i++)
{
_id2InfoNew[i].Descriptor.MapNestedTypes(d =>
{
var placeHolderDescriptor = d as PlaceHolderDescriptor;
return placeHolderDescriptor != null ? _id2InfoNew[-placeHolderDescriptor.TypeId - 1].Descriptor : d;
});
}
// This additional cycle is needed to fill names of recursive structures
for (var i = 0; i < _id2InfoNew.Count; i++)
{
_id2InfoNew[i].Descriptor.MapNestedTypes(d => d);
}
for (var i = 0; i < _id2InfoNew.Count; i++)
{
var infoForType = _id2InfoNew[i];
for (var j = ReservedBuildinTypes; j < _id2Info.Count; j++)
{
if (infoForType.Descriptor.Equals(_id2Info[j].Descriptor))
{
_remapToOld[infoForType.Descriptor] = _id2Info[j].Descriptor;
_id2InfoNew[i] = _id2Info[j];
infoForType = _id2InfoNew[i];
break;
}
}
if (infoForType.Id < 0)
{
infoForType.Id = _id2Info.Count;
_id2Info.Add(infoForType);
_typeOrDescriptor2Info[infoForType.Descriptor] = infoForType;
}
}
for (var i = 0; i < _id2InfoNew.Count; i++)
{
_id2InfoNew[i].Descriptor.MapNestedTypes(d =>
{
ITypeDescriptor res;
return _remapToOld.TryGetValue(d, out res) ? res : d;
});
}
_id2InfoNew.Clear();
_remapToOld.Clear();
}
