private static void DecodingBasicType(BinaryReader br, ref object obj, TTLVStructNode node, int valueLength, TypeCode valueBufferTypeCode)
{
byte[] valueBuffer = new byte[valueLength];
br.Read(valueBuffer, 0, valueBuffer.Length);
object value = TTLVCommon.ConvterBack(valueBuffer, valueBufferTypeCode, 0, valueLength);
SetTTLVNodeValue(obj, node, value);
}
private static void AddTTLVNodeValue(List <byte> buffer, TTLVStructNode node, byte[] valueBuffer)
{
_codec.WriteNode(buffer, node.Tag, node.TypeCode, valueBuffer);
//buffer.AddRange(BitConverter.GetBytes(node.Tag));
//buffer.Add((byte)node.TypeCode);
//buffer.AddRange(BitConverter.GetBytes(valueBuffer.Length));
//buffer.AddRange(valueBuffer);
}
private static void EncodingObject(List <byte> buffer, TTLVStructNode node, object objValue)
{
List <byte> buffer2 = new List <byte>();
var childs = GetTTLVStructNodeChilds(node);
PrimitiveEncoding(buffer2, childs, objValue);
AddTTLVNodeValue(buffer, node, buffer2.ToArray());
}
private static void DecodingConvert(BinaryReader br, ref object obj, TTLVStructNode node, int valueLength)
{
byte[] valueBuffer = new byte[valueLength];
br.Read(valueBuffer, 0, valueBuffer.Length);
object memberValue = node.GetValue(obj);
object value = node.Converter.ConvertBackObject(node.Tag, valueBuffer, memberValue, node.GetMemberType(), node.ConverterPara);
SetTTLVNodeValue(obj, node, value);
}
private static void InitConverterNode(TTLVAttribute ttlvAttribute, TTLVStructNode node, Type eleType)
{
if (ttlvAttribute.ConverterType.GetInterface(_ttlvIConverterTypeName) == null)
{
throw new ArgumentException(string.Format("转换器类型[{0}]未实现[{1}]接口", ttlvAttribute.ConverterType.FullName, _ttlvIConverterTypeName));
}
node.Converter = CreateTTLVConverter(ttlvAttribute);
node.ConverterPara = ttlvAttribute.ConverterPara;
node.TTLVType = TTLVType.Convert;
node.ElementType = eleType;
}
private static void EncodingCollection(List <byte> buffer, TTLVStructNode node, object collectionObj)
{
List <byte> buffer2 = new List <byte>();
var collection = (IEnumerable)collectionObj;
foreach (var item in collection)
{
EncodingObject(buffer2, node, item);
}
AddTTLVNodeValue(buffer, node, buffer2.ToArray());
}
private static void DecodingIList(BinaryReader br, ref object obj, TTLVStructNode node, int valueLength)
{
var list = (IList)node.GetValue(obj);
if (list == null)
{
list = (IList)node.CreateMemberInstance();
SetTTLVNodeValue(obj, node, list);
}
DecodingCollection(list, br, node, valueLength);
}
private static void DecodingArray(BinaryReader br, ref object obj, TTLVStructNode node, int valueLength)
{
var list = new List <object>();
DecodingCollection(list, br, node, valueLength);
Array array = Array.CreateInstance(node.ElementType, list.Count);
for (int i = 0; i < array.Length; i++)
{
array.SetValue(list[i], i);
}
SetTTLVNodeValue(obj, node, array);
}
private static List <TTLVStructNode> GetTTLVStructNodeChilds(TTLVStructNode node)
{
List <TTLVStructNode> childs;
if (node.RefNode != null)
{
childs = node.RefNode.Childs;
}
else
{
childs = node.Childs;
}
return(childs);
}
private static void DecodingObject(BinaryReader br, ref object obj, TTLVStructNode node, int valueLength)
{
var obj2 = node.GetValue(obj);
if (obj2 == null)
{
obj2 = node.CreateMemberInstance();
SetTTLVNodeValue(obj, node, obj2);
}
var endPosition = br.BaseStream.Position + valueLength;
var childs = GetTTLVStructNodeChilds(node);
PrimitiveDecoding(br, endPosition, ref obj2, childs);
br.BaseStream.Position = endPosition;
}
private static void PrimitiveDecoding(BinaryReader br, long endPosition, ref object obj, List <TTLVStructNode> childs)
{
var nodeInfo = new TTLVNodeInfo();
while (br.BaseStream.Position < endPosition)
{
//int tag = br.ReadInt32();
//TypeCode valueBufferTypeCode = (TypeCode)br.ReadByte();
//int length = br.ReadInt32();
_codec.ReadNodeInfo(br, nodeInfo);
int length = nodeInfo.Length;
TypeCode valueBufferTypeCode = nodeInfo.Type;
TTLVStructNode node = childs.Find(t => { return(t.Tag == nodeInfo.Tag); });
if (node == null || !node.CheckCompatible(valueBufferTypeCode))
{
br.BaseStream.Position += length;
continue;
}
switch (node.TTLVType)
{
case TTLVType.BasicType:
DecodingBasicType(br, ref obj, node, length, valueBufferTypeCode);
break;
case TTLVType.Convert:
DecodingConvert(br, ref obj, node, length);
break;
case TTLVType.Object:
DecodingObject(br, ref obj, node, length);
break;
case TTLVType.Array:
DecodingArray(br, ref obj, node, length);
break;
case TTLVType.IList:
DecodingIList(br, ref obj, node, length);
break;
default:
throw new NotImplementedException(string.Format("未知类型", node.TTLVType.ToString()));
}
}
}
private static void DecodingCollection(IList list, BinaryReader br, TTLVStructNode node, int valueLength)
{
TTLVCommon.CheckHasNoParaConstructor(node.ElementType);
var endPosition = br.BaseStream.Position + valueLength;
var nodeInfo = new TTLVNodeInfo();
while (br.BaseStream.Position < endPosition)
{
//int tag = br.ReadInt32();
//TypeCode valueBufferTypeCode = (TypeCode)br.ReadByte();
//int length = br.ReadInt32();
_codec.ReadNodeInfo(br, nodeInfo);
object instance = Activator.CreateInstance(node.ElementType);
PrimitiveDecoding(br, br.BaseStream.Position + nodeInfo.Length, ref instance, node.Childs);
list.Add(instance);
}
br.BaseStream.Position = endPosition;
}
private static TTLVStructNode GetTypeStructTree(Type type)
{
TTLVStructNode typeStructTree;
if (_typeStructTreeDic.TryGetValue(type, out typeStructTree))
{
return(typeStructTree);
}
lock (_typeStructTreeDic)
{
if (_typeStructTreeDic.TryGetValue(type, out typeStructTree))
{
return(typeStructTree);
}
typeStructTree = new TTLVStructNode(0, TypeCode.Empty, null, null);
var allNodeDic = new Dictionary <Type, TTLVStructNode>();
CreateTypeStructTree(allNodeDic, typeStructTree, type);
_typeStructTreeDic[type] = typeStructTree;
return(typeStructTree);
}
}
private static void CreateTypeFieldStructTree(Dictionary <Type, TTLVStructNode> allNodeDic, TTLVStructNode parentNode, Type type)
{
FieldInfo[] fieldInfoArr = type.GetFields(_memberAcessFlags);
foreach (FieldInfo fieldInfo in fieldInfoArr)
{
object[] objAtts = fieldInfo.GetCustomAttributes(_ttlvAttributeType, true);
if (objAtts.Length < 1)
{
//未标记,忽略
continue;
}
var typeCode = Type.GetTypeCode(fieldInfo.FieldType);
var ttlvAttribute = (TTLVAttribute)objAtts[0];
var node = new TTLVStructNode(ttlvAttribute.Tag, typeCode, fieldInfo);
if (typeCode == TypeCode.Object)
{
if (ttlvAttribute.ConverterType != null)
{
//优先使用自定义转换
InitConverterNode(ttlvAttribute, node, fieldInfo.FieldType);
}
else
{
InitNoConverterNode(allNodeDic, fieldInfo, ttlvAttribute, node);
}
}
else
{
node.TTLVType = TTLVType.BasicType;
}
parentNode.Childs.Add(node);
}
}
private static void SetTTLVNodeValue(object obj, TTLVStructNode node, object value)
{
node.SetValue(obj, value);
}
private static void CreateTypeStructTree(Dictionary <Type, TTLVStructNode> allNodeDic, TTLVStructNode parentNode, Type type)
{
CreateTypePropertyStructTree(allNodeDic, parentNode, type); //属性
CreateTypeFieldStructTree(allNodeDic, parentNode, type); //字段
}
private static void EncodingConvert(List <byte> buffer, TTLVStructNode node, object objValue)
{
var valueBuffer = node.Converter.ConvertToBytes(node.Tag, objValue, node.ElementType, node.ConverterPara);
AddTTLVNodeValue(buffer, node, valueBuffer);
}
private static void EncodingBasicType(List <byte> buffer, TTLVStructNode node, object objValue)
{
byte[] valueBuffer = TTLVCommon.ConvertToBytes(node.TypeCode, objValue);
AddTTLVNodeValue(buffer, node, valueBuffer);
}
private static void InitNoConverterNode(Dictionary <Type, TTLVStructNode> allNodeDic, FieldInfo fieldInfo, TTLVAttribute ttlvAttribute, TTLVStructNode node)
{
switch (ttlvAttribute.PropertyType)
{
case TTLVPropertyType.Collection:
Type eleType;
TTLVType ttlvType;
TTLVCommon.GetCollectionElementType(fieldInfo.FieldType, out eleType, out ttlvType);
node.TTLVType = ttlvType;
node.ElementType = eleType;
CreateTypeStructTree(allNodeDic, node, eleType);
break;
case TTLVPropertyType.SingleObject:
if (allNodeDic.ContainsKey(fieldInfo.FieldType))
{
//解决递归类型,即类型同嵌套自身类型
node.RefNode = allNodeDic[fieldInfo.FieldType];
}
else
{
allNodeDic.Add(fieldInfo.FieldType, node);
node.ElementType = fieldInfo.FieldType;
CreateTypeStructTree(allNodeDic, node, fieldInfo.FieldType);
}
node.TTLVType = TTLVType.Object;
break;
default:
throw new NotImplementedException($"未实现的TTLVPropertyType[{ttlvAttribute.PropertyType.ToString()}]");
}
}
