Exemplo n.º 1
0
        /// <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);
            }
        }
Exemplo n.º 2
0
        /// <summary>
        /// 反序列化Byte数组到一个对象,无法反序列化,将抛出ArgumentException异常
        /// </summary>
        /// <param name="objectType">对象类型</param>
        /// <param name="bytesValue">二进制数据</param>
        /// <param name="startIndex">开始执行的位置</param>
        /// <param name="maxReadSize">指定支持最大反序列化的数据大小</param>
        /// <param name="readLength">实际反序列化时读取的元素个数</param>
        /// <returns>对象</returns>
        public static object DeserializeFrom(Type objectType, byte[] bytesValue, int startIndex, int maxReadSize, out int readLength)
        {
            try
            {
                ZipBytesReader brData = new ZipBytesReader(startIndex, maxReadSize, bytesValue);

                int    point        = startIndex;
                object fatherObject = null;

                object innerObject = null;

                int    readEnd      = 0;
                byte   isNull       = 0;
                int    totalLength  = 0;
                int    nextSeekTo   = 0;
                ushort metablockLen = 0;


                //新的字段信息,一般只保存类型和父类
                SerializeInfo innerSerializeInfo;

                Stack <SerializeInfo> bufStack = new Stack <SerializeInfo>();

                bool fullLengthSchema = false;
                if (brData.ReadByte() != Byte_Zero)
                {
                    fullLengthSchema = true;

                    metablockLen = brData.TryReadMetaBlockLength();
                    totalLength  = brData.Position + metablockLen;
                }

                bufStack.Push(new SerializeInfo(objectType, totalLength));

                while (bufStack.Count > 0)
                {
                    //当前的字段信息
                    SerializeInfo nowSerializeInfo = bufStack.Peek();
                    readEnd = nowSerializeInfo.ByteStartIndexOrEndPoint;

                    if (nowSerializeInfo.TheObject == null)  //未检查过
                    {
                        //专门处理Nullable类型
                        if (nowSerializeInfo.TheType.IsGenericType)
                        {
                            if (nowSerializeInfo.TheType.GetGenericTypeDefinition() == SerializeInfo.Type_Nullable)
                            {
                                isNull = brData.ReadByte();
                                if (isNull == Byte_Zero)  //为null
                                {
                                    nowSerializeInfo.FatherSerializeInfo.Index++;
                                    bufStack.Pop();
                                    if (fullLengthSchema)
                                    {
                                        if (readEnd >= totalLength)
                                        {
                                            break;
                                        }
                                        brData.SeekNextTo(readEnd);
                                    }
                                    continue;
                                }
                                else
                                {
                                    nowSerializeInfo.TheType = nowSerializeInfo.TheType.GetGenericArguments()[0];
                                }
                            }
                        }

                        //基础类
                        if (BytesHelper.TryGetValue(nowSerializeInfo.TheType, out innerObject, brData))
                        {
                            if (nowSerializeInfo.FatherSerializeInfo != null)  //有可能直接就是个基础类型
                            {
                                if (nowSerializeInfo.FatherSerializeInfo.IsIDictionary)
                                {
                                    if (nowSerializeInfo.FatherSerializeInfo.Index < nowSerializeInfo.FatherSerializeInfo.Length_FieldInfo / 2)
                                    {
                                        nowSerializeInfo.FatherSerializeInfo.Keys[nowSerializeInfo.FatherSerializeInfo.Index] = innerObject;
                                    }
                                    else
                                    {
                                        nowSerializeInfo.FatherSerializeInfo.SetInnerField(innerObject);
                                    }
                                }
                                else
                                {
                                    nowSerializeInfo.FatherSerializeInfo.SetInnerField(innerObject);
                                }
                                nowSerializeInfo.FatherSerializeInfo.Index++;
                            }
                            else  //有可能直接就是个基础类型
                            {
                                fatherObject = innerObject;
                            }
                            bufStack.Pop();
                            if (fullLengthSchema)
                            {
                                if (readEnd >= totalLength)
                                {
                                    break;
                                }
                                if (readEnd > brData.Position)
                                {
                                    brData.SeekNextTo(readEnd);
                                }
                            }
                        }
                        else  //非基础类
                        {
                            isNull = brData.ReadByte();

                            if (isNull == Byte_Zero)                              //为null
                            {
                                if (nowSerializeInfo.FatherSerializeInfo == null) //直接就是null
                                {
                                    fatherObject = null;
                                }
                                else
                                {
                                    if (nowSerializeInfo.FatherSerializeInfo.IsIList)
                                    {
                                        nowSerializeInfo.FatherSerializeInfo.Index++;
                                        nowSerializeInfo.FatherSerializeInfo.SetInnerField(null);
                                    }
                                    else if (nowSerializeInfo.FatherSerializeInfo.IsIDictionary)
                                    {
                                        nowSerializeInfo.FatherSerializeInfo.SetInnerField(null);
                                        nowSerializeInfo.FatherSerializeInfo.Index++;
                                    }
                                    else
                                    {
                                        nowSerializeInfo.FatherSerializeInfo.Index++;
                                    }
                                }
                                bufStack.Pop();
                                if (fullLengthSchema)
                                {
                                    if (readEnd >= totalLength)
                                    {
                                        break;
                                    }
                                    if (readEnd > brData.Position)
                                    {
                                        brData.SeekNextTo(readEnd);
                                    }
                                }
                            }
                            else
                            {
                                if (nowSerializeInfo.TheType.IsArray)
                                {
                                    nowSerializeInfo.IsArray          = true;
                                    nowSerializeInfo.TheElementType   = nowSerializeInfo.TheType.GetElementType();
                                    nowSerializeInfo.Length_FieldInfo = (int)brData.ReadUInt32();
                                }
                                else if (nowSerializeInfo.TheType.GetInterface("IList`1", false) != null)
                                {
                                    nowSerializeInfo.IsIList = true;

                                    object[] ubas = nowSerializeInfo.TheType.GetCustomAttributes(false);
                                    if (ubas.Length > 0)
                                    {
                                        UseBaseArgument uba = ubas[0] as UseBaseArgument;
                                        if (uba != null)
                                        {
                                            nowSerializeInfo.TheElementType = nowSerializeInfo.TheType.BaseType.GetGenericArguments()[0];
                                        }
                                        else
                                        {
                                            nowSerializeInfo.TheElementType = nowSerializeInfo.TheType.GetGenericArguments()[0];
                                        }
                                    }
                                    else
                                    {
                                        nowSerializeInfo.TheElementType = nowSerializeInfo.TheType.GetGenericArguments()[0];
                                    }

                                    nowSerializeInfo.Length_FieldInfo = (int)brData.ReadUInt32();
                                }
                                else if (nowSerializeInfo.TheType.GetInterface("IDictionary`2", false) != null)
                                {
                                    nowSerializeInfo.IsIDictionary = true;

                                    object[] ubas = nowSerializeInfo.TheType.GetCustomAttributes(false);
                                    if (ubas.Length > 0)
                                    {
                                        UseBaseArgument uba = ubas[0] as UseBaseArgument;
                                        if (uba != null)
                                        {
                                            nowSerializeInfo.TheElementType = nowSerializeInfo.TheType.BaseType.GetGenericArguments()[0];
                                            nowSerializeInfo.TheValueType   = nowSerializeInfo.TheType.BaseType.GetGenericArguments()[1];
                                        }
                                        else
                                        {
                                            nowSerializeInfo.TheElementType = nowSerializeInfo.TheType.GetGenericArguments()[0];
                                            nowSerializeInfo.TheValueType   = nowSerializeInfo.TheType.GetGenericArguments()[1];
                                        }
                                    }
                                    else
                                    {
                                        nowSerializeInfo.TheElementType = nowSerializeInfo.TheType.GetGenericArguments()[0];
                                        nowSerializeInfo.TheValueType   = nowSerializeInfo.TheType.GetGenericArguments()[1];
                                    }

                                    nowSerializeInfo.Length_FieldInfo = (int)brData.ReadUInt32();

                                    nowSerializeInfo.Keys = new object[nowSerializeInfo.Length_FieldInfo / 2];
                                }
                                else
                                {
                                    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.TheType.IsInterface)
                                {
                                    nowSerializeInfo.CreatObject();
                                }

                                if (fatherObject == null)
                                {
                                    fatherObject = nowSerializeInfo.TheObject;
                                }
                                else
                                {
                                    if (nowSerializeInfo.FatherSerializeInfo.IsIDictionary)
                                    {
                                        if (nowSerializeInfo.FatherSerializeInfo.Index < nowSerializeInfo.FatherSerializeInfo.Length_FieldInfo / 2)
                                        {
                                            //key值
                                            nowSerializeInfo.FatherSerializeInfo.Keys[nowSerializeInfo.FatherSerializeInfo.Index] = nowSerializeInfo.TheObject;
                                        }
                                        else
                                        {
                                            //value值
                                            nowSerializeInfo.FatherSerializeInfo.SetInnerField(nowSerializeInfo.TheObject);
                                        }
                                    }
                                    else
                                    {
                                        nowSerializeInfo.FatherSerializeInfo.SetInnerField(nowSerializeInfo.TheObject);
                                    }
                                    nowSerializeInfo.FatherSerializeInfo.Index++;
                                }

                                if (nowSerializeInfo.Length_FieldInfo != 0)
                                {
                                    if (fullLengthSchema)
                                    {
                                        metablockLen = brData.TryReadMetaBlockLength();
                                        nextSeekTo   = brData.Position + metablockLen;

                                        //if (readEnd > 0 && readEnd < nextSeekTo)
                                        //{
                                        //    continue;
                                        //}
                                    }

                                    if (nowSerializeInfo.IsArray || nowSerializeInfo.IsIList)
                                    {
                                        innerSerializeInfo = new SerializeInfo(nowSerializeInfo.TheElementType, nextSeekTo);
                                    }
                                    else if (nowSerializeInfo.IsIDictionary)
                                    {
                                        innerSerializeInfo = new SerializeInfo(nowSerializeInfo.TheElementType, nextSeekTo);
                                    }
                                    else
                                    {
                                        DynamicFieldInfo tempDFI = nowSerializeInfo.FieldInfos[0];
                                        innerSerializeInfo = new SerializeInfo(tempDFI.TheField.PropertyType, nextSeekTo);
                                    }
                                    innerSerializeInfo.FatherSerializeInfo = nowSerializeInfo;
                                    bufStack.Push(innerSerializeInfo);
                                }
                            }
                        }
                    }
                    else  //检查过
                    {
                        if (nowSerializeInfo.Length_FieldInfo == nowSerializeInfo.Index)  //检查完了
                        {
                            bufStack.Pop();
                            if (fullLengthSchema)
                            {
                                if (readEnd >= totalLength)
                                {
                                    break;
                                }
                                if (readEnd > 0 && readEnd > brData.Position)
                                {
                                    brData.SeekNextTo(readEnd);
                                }
                            }
                        }
                        else
                        {
                            if (fullLengthSchema)
                            {
                                metablockLen = brData.TryReadMetaBlockLength();
                                nextSeekTo   = brData.Position + metablockLen;

                                if ((readEnd > 0 && readEnd < nextSeekTo))
                                {
                                    nowSerializeInfo.Index = nowSerializeInfo.Length_FieldInfo;
                                    brData.SeekAdd(-2);
                                    continue;
                                }
                            }

                            if (nowSerializeInfo.IsArray || nowSerializeInfo.IsIList)
                            {
                                innerSerializeInfo = new SerializeInfo(nowSerializeInfo.TheElementType, nextSeekTo);
                            }
                            else if (nowSerializeInfo.IsIDictionary)
                            {
                                if (nowSerializeInfo.Index < nowSerializeInfo.Length_FieldInfo / 2)
                                {
                                    innerSerializeInfo = new SerializeInfo(nowSerializeInfo.TheElementType, nextSeekTo);
                                }
                                else
                                {
                                    innerSerializeInfo = new SerializeInfo(nowSerializeInfo.TheValueType, nextSeekTo);
                                }
                            }
                            else
                            {
                                DynamicFieldInfo tempDFI = nowSerializeInfo.FieldInfos[nowSerializeInfo.Index];
                                innerSerializeInfo = new SerializeInfo(tempDFI.TheField.PropertyType, nextSeekTo);
                            }
                            innerSerializeInfo.FatherSerializeInfo = nowSerializeInfo;
                            bufStack.Push(innerSerializeInfo);
                        }
                    }
                }

                if (fullLengthSchema)
                {
                    readLength = totalLength;
                }
                else
                {
                    readLength = brData.Position;
                }
                return(fatherObject);
            }
            catch (SerializeException se)
            {
                throw new SerializeException(objectType.ToString() + se.Message);
            }
            //catch (Exception e)
            {
                //throw new SerializeException(objectType.ToString() + "Data bytes and type not match" + e.Message);
            }
        }