/// <summary>
/// 序列化一个对象到Byte数组，无法序列化，将抛出ArgumentException异常
/// </summary>
/// <param name="obj">对象</param>
/// <param name="writeToBytes">将要在这个数组基础上开始写入，指定Null表示新建一个数组</param>
/// <param name="startIndex">将要从数组的哪个位置开始写入</param>
/// <param name="maxWriteSize">最大允许的写入长度</param>
/// <param name="fullLengthSchema">是否完整包含每个子对象的长度</param>
/// <returns>返回有效大小</returns>
public static int SerializeTo(object obj, ref byte[] writeToBytes, int startIndex, int maxWriteSize, bool fullLengthSchema = true)
{
//try
{
bool isFieldNullable = false;
//数据块
ZipBytesWriter bwData;
if (writeToBytes != null)
{
bwData = new ZipBytesWriter(writeToBytes, startIndex, maxWriteSize);
}
else
{
bwData = new ZipBytesWriter(maxWriteSize);
}
//写标识头
bwData.Write((fullLengthSchema) ? Byte_One : Byte_Zero);
if (obj == null)
{
if (fullLengthSchema)
{
bwData.Write((ushort)1);
}
bwData.Write(Byte_Zero);
writeToBytes = bwData.Bytes;
return(bwData.EffectiveBytesLength);
}
int metablockStart = 0;
int metablockLen = 0;
Stack <SerializeInfo> bufStack = new Stack <SerializeInfo>();
bufStack.Push(new SerializeInfo(obj, isFieldNullable, bwData.EffectiveBytesLength));
if (fullLengthSchema)
{
bwData.Write(DefaultFieldLen);
}
while (bufStack.Count > 0)
{
SerializeInfo nowSerializeInfo = bufStack.Peek();
if (nowSerializeInfo.TheObject == null)
{
bwData.WriteNullHead(true); //写入null
bufStack.Pop();
if (fullLengthSchema)
{
metablockStart = nowSerializeInfo.ByteStartIndexOrEndPoint;
metablockLen = bwData.EffectiveBytesLength - metablockStart - 2;
ZipBytesWriter.WriteAtUshort(bwData.Bytes, metablockStart, (ushort)metablockLen);
}
}
else
{
if (nowSerializeInfo.TheType == null) //未检查过
{
if (nowSerializeInfo.IsNullable)
{
bwData.WriteNullHead(false);
}
nowSerializeInfo.TheType = nowSerializeInfo.TheObject.GetType();
//是基础元素
if (BytesHelper.TryWriteBytes(nowSerializeInfo.TheObject, nowSerializeInfo.TheType, bwData))
{
bufStack.Pop();
if (fullLengthSchema)
{
metablockStart = nowSerializeInfo.ByteStartIndexOrEndPoint;
metablockLen = bwData.EffectiveBytesLength - metablockStart - 2;
if (metablockLen > ushort.MaxValue)
{
throw new Exception("序列化的子字段大小超出65535:" + nowSerializeInfo.FieldInfos[nowSerializeInfo.Index - 1].FieldName);
}
ZipBytesWriter.WriteAtUshort(bwData.Bytes, metablockStart, (ushort)metablockLen);
}
}
else //不是基础元素
{
if (nowSerializeInfo.TheType.IsArray)
{
nowSerializeInfo.IsArray = true;
nowSerializeInfo.Length_FieldInfo = (nowSerializeInfo.TheObject as Array).Length;
//写入数组长度
bwData.WriteArrayHead(nowSerializeInfo.Length_FieldInfo);
}
else if (nowSerializeInfo.TheType.GetInterface("IList`1", false) != null)
{
nowSerializeInfo.IsIList = true;
nowSerializeInfo.Length_FieldInfo = (nowSerializeInfo.TheObject as IList).Count;
//写入数组长度
bwData.WriteArrayHead(nowSerializeInfo.Length_FieldInfo);
}
else if (nowSerializeInfo.TheType.GetInterface("IDictionary`2", false) != null)
{
nowSerializeInfo.IsIDictionary = true;
IDictionary id = nowSerializeInfo.TheObject as IDictionary;
int dLength = id.Count;
nowSerializeInfo.Length_FieldInfo = dLength * 2;
object[] kvs = new object[nowSerializeInfo.Length_FieldInfo];
id.Keys.CopyTo(kvs, 0);
id.Values.CopyTo(kvs, dLength);
nowSerializeInfo.TheObject = kvs;
//写入数组长度
bwData.WriteArrayHead(nowSerializeInfo.Length_FieldInfo);
}
else
{
bwData.WriteNullHead(false);
DynamicFieldInfo[] fis;
lock (FI_Lookup)
{
if (FI_Lookup.ContainsKey(nowSerializeInfo.TheType))
{
fis = FI_Lookup[nowSerializeInfo.TheType];
}
else
{
PropertyInfo[] fi = nowSerializeInfo.TheType.GetProperties(AllInstanceBindingFlags).OrderBy(c => c.Name).ToArray();
List <DynamicFieldInfo> tempFis = new List <DynamicFieldInfo>();
for (int i = 0; i < fi.Length; i++)
{
PropertyInfo fiNow = fi[i];
object[] at = fiNow.GetCustomAttributes(typeof(System.NonSerializedAttribute), true);
if (at.Length == 0)
{
tempFis.Add(new DynamicFieldInfo()
{
TheField = fiNow
});
}
}
fis = tempFis.ToArray();
FI_Lookup.Add(nowSerializeInfo.TheType, fis);
}
}
nowSerializeInfo.FieldInfos = fis;
nowSerializeInfo.Length_FieldInfo = fis.Length;
}
if (nowSerializeInfo.Length_FieldInfo == 0) //虽然不是基础元素，但没有可序列化的字段
{
bufStack.Pop();
if (fullLengthSchema)
{
metablockStart = nowSerializeInfo.ByteStartIndexOrEndPoint;
metablockLen = bwData.EffectiveBytesLength - metablockStart - 2;
if (metablockLen > ushort.MaxValue)
{
throw new Exception("序列化的子字段大小超出65535:" + nowSerializeInfo.FieldInfos[nowSerializeInfo.Index - 1].FieldName);
}
ZipBytesWriter.WriteAtUshort(bwData.Bytes, metablockStart, (ushort)metablockLen);
}
}
else
{
nowSerializeInfo.Index = 0;
isFieldNullable = false;
object innerObject = nowSerializeInfo.GetInnerField(ref isFieldNullable);
nowSerializeInfo.Index++;
bufStack.Push(new SerializeInfo(innerObject, isFieldNullable, bwData.EffectiveBytesLength));
if (fullLengthSchema)
{
bwData.Write(DefaultFieldLen);
}
}
}
}
else //上次检查过
{
if (nowSerializeInfo.Length_FieldInfo == nowSerializeInfo.Index) //检查完了
{
bufStack.Pop();
if (fullLengthSchema)
{
metablockStart = nowSerializeInfo.ByteStartIndexOrEndPoint;
metablockLen = bwData.EffectiveBytesLength - metablockStart - 2;
if (metablockLen > ushort.MaxValue)
{
throw new Exception("序列化的子字段大小超出65535:" + nowSerializeInfo.FieldInfos[nowSerializeInfo.Index - 1].FieldName);
}
ZipBytesWriter.WriteAtUshort(bwData.Bytes, metablockStart, (ushort)metablockLen);
}
}
else
{
isFieldNullable = false;
object innerObject = nowSerializeInfo.GetInnerField(ref isFieldNullable);
nowSerializeInfo.Index++;
bufStack.Push(new SerializeInfo(innerObject, isFieldNullable, bwData.EffectiveBytesLength));
if (fullLengthSchema)
{
bwData.Write(DefaultFieldLen);
}
}
}
}
}
writeToBytes = bwData.Bytes;
return(bwData.EffectiveBytesLength);
}
//catch (Exception ee)
{
//throw new SerializeException(obj.GetType().ToString() + "Data bytes and type not match:" + ee.Message);
}
}
/// <summary>
/// 尝试直接序列化基础值类型（包括其数组）
/// </summary>
/// <param name="value">对象</param>
/// <param name="type">对象的类型</param>
/// <param name="theByteWriter">写入Write</param>
/// <returns>能否执行</returns>
public static bool TryWriteBytes(object value, Type type, ZipBytesWriter theByteWriter)
{
if (value == null)
{
return false;
}
if (type.IsEnum)
{
type = type.GetFields()[0].FieldType;
}
if (type == Type_Bool)
{
theByteWriter.Write((bool)value);
return true;
}
if (type == Type_Byte)
{
theByteWriter.Write((byte)value);
return true;
}
if (type == Type_SByte)
{
theByteWriter.Write((sbyte)value);
return true;
}
if (type == Type_UInt16)
{
theByteWriter.Write((UInt16)value);
return true;
}
if (type == Type_Int16)
{
theByteWriter.Write((Int16)value);
return true;
}
if (type == Type_Char)
{
theByteWriter.Write((Char)value);
return true;
}
if (type == Type_UInt32)
{
theByteWriter.Write((UInt32)value);
return true;
}
if (type == Type_Int32)
{
theByteWriter.Write((Int32)value);
return true;
}
if (type == Type_UInt64)
{
theByteWriter.Write((UInt64)value);
return true;
}
if (type == Type_Int64)
{
theByteWriter.Write((Int64)value);
return true;
}
if (type == Type_Single)
{
theByteWriter.Write((Single)value);
return true;
}
if (type == Type_Double)
{
theByteWriter.Write((Double)value);
return true;
}
if (type == Type_Decimal)
{
theByteWriter.Write((Decimal)value);
return true;
}
if (type == Type_Guid)
{
theByteWriter.Write((Guid)value);
return true;
}
if (type == Type_DateTime)
{
theByteWriter.Write((DateTime)value);
return true;
}
if (type == Type_TimeSpan)
{
theByteWriter.Write((TimeSpan)value);
return true;
}
if (type == Type_String)
{
theByteWriter.Write((String)value);
return true;
}
if (type.IsArray)
{
Type elemtT = type.GetElementType();
if (elemtT.IsEnum)
{
#if Server || WP
type = elemtT.GetFields()[0].FieldType;
type = type.MakeArrayType();
#else
Type elemtUnderType = null;
FieldInfo elemtValueField = null;
elemtValueField = elemtT.GetFields()[0];
elemtUnderType = elemtValueField.FieldType;
type = elemtUnderType.MakeArrayType();
Array oArray = value as Array;
int arrayLength = oArray.Length;
Array newArray = Array.CreateInstance(elemtUnderType, arrayLength);
Array.Copy(oArray, 0, newArray, 0, arrayLength);
value = newArray;
#endif
}
}
if (type == Type_Bools)
{
theByteWriter.Write((bool[])value);
return true;
}
if (type == Type_Bytes)
{
theByteWriter.Write((byte[])value, ((byte[])value).Length);
return true;
}
if (type == Type_SBytes)
{
theByteWriter.Write((sbyte[])value);
return true;
}
if (type == Type_UInt16s)
{
theByteWriter.Write((UInt16[])value);
return true;
}
if (type == Type_Int16s)
{
theByteWriter.Write((Int16[])value);
return true;
}
if (type == Type_Chars)
{
theByteWriter.Write((Char[])value);
return true;
}
if (type == Type_UInt32s)
{
theByteWriter.Write((UInt32[])value);
return true;
}
if (type == Type_Int32s)
{
theByteWriter.Write((Int32[])value);
return true;
}
if (type == Type_UInt64s)
{
theByteWriter.Write((UInt64[])value);
return true;
}
if (type == Type_Int64s)
{
theByteWriter.Write((Int64[])value);
return true;
}
if (type == Type_Singles)
{
theByteWriter.Write((Single[])value);
return true;
}
if (type == Type_Doubles)
{
theByteWriter.Write((Double[])value);
return true;
}
if (type == Type_Decimals)
{
theByteWriter.Write((Decimal[])value);
return true;
}
if (type == Type_Guids)
{
theByteWriter.Write((Guid[])value);
return true;
}
if (type == Type_DateTimes)
{
theByteWriter.Write((DateTime[])value);
return true;
}
if (type == Type_TimeSpans)
{
theByteWriter.Write((TimeSpan[])value);
return true;
}
return false;
}