/// <summary>
/// 按照数据规范输出数据
/// </summary>
/// <param name="context">当前字节序列上下文</param>
/// <param name="writer">二进制写入器</param>
/// <param name="respDict">输出数据词典</param>
/// <param name="contracts">当前协议规范</param>
public static void WriteByContract(StreamContext context, BinaryWriter writer, Dictionary <string, object> respDict, DataContract contracts)
{
context.ContextObjectDictionary = respDict;
foreach (DataItem item in contracts.TransItems)
{
#region 判断是否写入当前项
if (!string.IsNullOrEmpty(item.ConditionalExpression))
{
if (!new SpecExpression(item.ConditionalExpression).IsPass(context))
{
continue;
}
}
#endregion
SpecDataType dType = SpecDataType.Parse(context, item.DataType);
Type clrType = dType.GetRuntimeType();
if (clrType == null)
{
throw new SpecDataDefineException(string.Format("数据类型{0}不能识别！", item.DataType));
}
else
{
WriteKnownTypeObject(context, writer, dType, respDict[item.DataName], item.NetworkBytes);
}
//设置最近一个解析项
context._lastDataItem = item;
}
}
/// <summary>
/// 按照数据规范读取数据为数据词典
/// </summary>
/// <param name="context">当前字节序列上下文</param>
/// <param name="reader">二进制读取器</param>
/// <param name="contracts">协议规范</param>
/// <returns></returns>
public static Dictionary <string, object> ReadByContract(StreamContext context, BinaryReader reader, DataContract contracts)
{
Dictionary <string, object> reqDict = new Dictionary <string, object>(StringComparer.InvariantCultureIgnoreCase);
context.ContextObjectDictionary = reqDict;
foreach (DataItem item in contracts.TransItems)
{
#region 判断是否读取当前项
if (!string.IsNullOrEmpty(item.ConditionalExpression))
{
if (!new SpecExpression(item.ConditionalExpression).IsPass(context))
{
continue;
}
}
#endregion
SpecDataType dType = SpecDataType.Parse(context, item.DataType);
Type clrType = dType.GetRuntimeType();
if (clrType == null)
{
throw new SpecDataDefineException(string.Format("数据类型{0}不能识别！", item.DataType));
}
else
{
reqDict[item.DataName] = ReadKnownTypeObject(context, reader, dType);
}
//设置最近一个解析项
context._lastDataItem = item;
}
return(reqDict);
}
/// <summary>
/// 在当前上下文中写入已知类型数据，并移动上下文写入游标索引。
/// </summary>
/// <param name="context">当前字节序列上下文</param>
/// <param name="writer">二进制写入器</param>
/// <param name="dType">规范数据定义</param>
/// <param name="objData">写入对象实例</param>
/// <param name="isNetworkBytes">是否写入网络序</param>
public static void WriteKnownTypeObject(StreamContext context, BinaryWriter writer, SpecDataType dType, object objData, bool isNetworkBytes)
{
Type clrType = dType.GetRuntimeType();
if (dType.Prototype == SpecDataPrototype.Native)
{
context.IncreasePosition(SpecData.CLRObjectWrite(clrType, writer, objData, isNetworkBytes));
}
else
{
if (dType.Prototype == SpecDataPrototype.Array)
{
Type elementType = dType.GetElementType();
Array arrObj = (Array)objData;
if (SpecDataType.IsNativeType(TypeCache.ToSimpleType(elementType)))
{
#region 写入基础数据类型数组
for (int i = 0, j = dType.ElementLength; i < j; i++)
{
context.IncreasePosition(SpecData.CLRObjectWrite(elementType, writer, arrObj.GetValue(i), isNetworkBytes));
}
#endregion
}
else
{
for (int m = 0, n = dType.ElementLength; m < n; m++)
{
WriteKnownTypeObject(context, writer, dType.GetElementDataType(), arrObj.GetValue(m), isNetworkBytes);
}
}
}
else
{
#region 扩展写入
if (clrType.Equals(typeof(EnumContract)))
{
EnumContract enc = (EnumContract)dType.GetDefineInstance();
clrType = enc.GetBaseRuntimeType();
if (!objData.GetType().Equals(clrType))
{
objData = enc.GetEnumUnderlyingValue(objData.ToString());
}
context.IncreasePosition(SpecData.CLRObjectWrite(clrType, writer, objData, isNetworkBytes));
}
else if (clrType.Equals(typeof(DataContract)))
{
DataContract dac = (DataContract)dType.GetDefineInstance();
WriteByContract(context, writer, (Dictionary <string, object>)objData, dac);
}
else
{
throw new SpecDataDefineException(string.Format("不能读取数据类型{0}！", clrType.FullName));
}
#endregion
}
}
}
/// <summary>
/// 解析数据类型
/// </summary>
/// <param name="context">当前解析上下文</param>
/// <param name="rawTypeDefine">原始定义字符串</param>
/// <returns></returns>
public static SpecDataType Parse(StreamContext context, string rawTypeDefine)
{
SpecDataType sType = new SpecDataType();
sType.TypeName = rawTypeDefine;
int idx = -1, idx2 = -1;
idx = rawTypeDefine.IndexOf('[');
idx2 = rawTypeDefine.IndexOf(']');
if (idx != -1 && idx2 != -1)
{
if (idx2 - idx == 1)
{
throw new SpecDataDefineException("数组类型定义[" + rawTypeDefine + "]错误，[]必须包含数据项长度或使用上下文计算的-1!");
}
sType.Prototype = SpecDataPrototype.Array;
string strTemp = rawTypeDefine.Substring(0, idx);
SpecDataType esType = Parse(context, strTemp);
sType._elementType = esType.GetRuntimeType();
sType.eleSpecDataType = esType;
strTemp = rawTypeDefine.Substring(idx + 1, idx2 - idx - 1).Trim();
if (strTemp == "-1")
{
DataItem?item = context.GetLastDataItem();
if (!item.HasValue)
{
throw new SpecDataDefineException("数组类型定义[-1]在上下文中没有前置传输定义项!");
}
else
{
sType.ElementLength = Convert.ToInt32(context.ContextObjectDictionary[item.Value.DataName]);
}
}
else
{
if (!context.ContextObjectDictionary.ContainsKey(strTemp))
{
throw new SpecDataDefineException("数组长度定义[" + strTemp + "]在上下文的没有找到长度定义!");
}
else
{
sType.ElementLength = Convert.ToInt32(context.ContextObjectDictionary[strTemp]);
}
}
sType.SetRuntimeType(sType._elementType.MakeArrayType());
}
else
{
#region 非数组定义
if (IsNativeType(rawTypeDefine))
{
sType.Prototype = SpecDataPrototype.Native;
sType.SetRuntimeType(TypeCache.GetRuntimeType(rawTypeDefine));
}
else
{
SpecFile specDef = context.ContractSpec;
EnumContract enc = TypeCache.FirstOrDefault <EnumContract>(specDef.AllDefinition, d => d.TypeName.Equals(rawTypeDefine));
if (enc != null)
{
sType.Prototype = SpecDataPrototype.Enum;
sType.SetRuntimeType(typeof(EnumContract));
sType.typeDefineInstance = enc;
}
else
{
DataContract dac = TypeCache.FirstOrDefault <DataContract>(specDef.AllImportContracts, c => c.ContractName.Equals(rawTypeDefine));
if (dac == null)
{
throw new SpecDataDefineException("类型定义" + rawTypeDefine + "不能识别!");
}
sType.Prototype = SpecDataPrototype.Composite;
sType.SetRuntimeType(typeof(DataContract));
sType.typeDefineInstance = dac;
}
}
#endregion
}
return(sType);
}
/// <summary>
/// 在当前上下文中读取已知类型读取数据，并移动上下文读取游标索引。
/// </summary>
/// <param name="context">当前字节序列上下文</param>
/// <param name="reader">二进制读取器</param>
/// <param name="dType">规范数据定义</param>
/// <returns></returns>
public static object ReadKnownTypeObject(StreamContext context, BinaryReader reader, SpecDataType dType)
{
object itemObj = null;
Type clrType = dType.GetRuntimeType();
if (dType.Prototype == SpecDataPrototype.Native)
{
itemObj = SpecData.CLRObjectFromReader(clrType, reader);
context.IncreasePosition(SpecData.GetCLRTypeByteLength(clrType));
}
else
{
if (dType.Prototype == SpecDataPrototype.Array)
{
Type elementType = dType.GetElementType();
Array arrObj = Array.CreateInstance(elementType, dType.ElementLength);
if (SpecDataType.IsNativeType(TypeCache.ToSimpleType(elementType)))
{
#region 读取基础数据类型数组
long unitLen = SpecData.GetCLRTypeByteLength(elementType);
for (int i = 0, j = dType.ElementLength; i < j; i++)
{
arrObj.SetValue(SpecData.CLRObjectFromReader(elementType, reader), i);
context.IncreasePosition(unitLen);
}
#endregion
}
else
{
for (int m = 0, n = dType.ElementLength; m < n; m++)
{
arrObj.SetValue(ReadKnownTypeObject(context, reader, dType.GetElementDataType()), m);
}
}
itemObj = arrObj;
}
else
{
#region 扩展读取
if (clrType.Equals(typeof(EnumContract)))
{
EnumContract enc = (EnumContract)dType.GetDefineInstance();
clrType = enc.GetBaseRuntimeType();
itemObj = SpecData.CLRObjectFromReader(clrType, reader);
context.IncreasePosition(SpecData.GetCLRTypeByteLength(clrType));
}
else if (clrType.Equals(typeof(DataContract)))
{
DataContract dac = (DataContract)dType.GetDefineInstance();
itemObj = ReadByContract(context, reader, dac);
}
else
{
throw new SpecDataDefineException(string.Format("不能读取数据类型{0}！", clrType.FullName));
}
#endregion
}
}
return(itemObj);
}
