protected VT GetVT(Type type)
{
Type innerType;
if (type.GetTypeInfo().IsEnum)
{
return(FixedTypeManager.IsVT(type.GetTypeInfo().GetEnumUnderlyingType()));
}
if ((innerType = Nullable.GetUnderlyingType(type)) != null)
{
return(FixedTypeManager.IsVT(innerType));
}
return(FixedTypeManager.IsVT(type));
}
/// <summary>
/// 将一个智能对象转换为二进制元数据
/// </summary>
/// <param name="obj">智能对象</param>
/// <param name="proxy">内存段代理器</param>
/// <returns>返回当前已经被序列化对象的总体长度</returns>
internal static void ToBytes(IThriftObject obj, IMemorySegmentProxy proxy)
{
//获取智能对象中的智能属性，并按照Id来排序
ToBytesAnalyseResult[] properties = Analyser.ToBytesAnalyser.Analyse(obj);
if (properties.Length == 0)
{
return;
}
for (int l = 0; l < properties.Length; l++)
{
ToBytesAnalyseResult property = properties[l];
//先检查完全缓存机制
if (property.HasCacheFinished)
{
property.CacheProcess(proxy, property.Attribute, property, obj, false, false);
continue;
}
#region 普通类型判断
IThriftTypeProcessor intellectTypeProcessor = ThriftTypeProcessorMapping.Instance.GetProcessor(property.Property.PropertyType);
if (intellectTypeProcessor != null)
{
//添加热缓存
IThriftTypeProcessor processor = intellectTypeProcessor;
property.CacheProcess = processor.Process;
property.CacheProcess(proxy, property.Attribute, property, obj, false, false);
property.HasCacheFinished = true;
continue;
}
#endregion
#region 枚举类型判断
//枚举类型
if (property.Property.PropertyType.IsEnum)
{
//获取枚举类型
Type enumType = Enum.GetUnderlyingType(property.Property.PropertyType);
intellectTypeProcessor = ThriftTypeProcessorMapping.Instance.GetProcessor(enumType);
if (intellectTypeProcessor == null)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE, property.Attribute.Id, property.Property.Name, property.Property.PropertyType));
}
//添加热缓存
IThriftTypeProcessor processor = intellectTypeProcessor;
property.CacheProcess = processor.Process;
property.CacheProcess(proxy, property.Attribute, property, obj, false, false);
property.HasCacheFinished = true;
continue;
}
#endregion
#region 可空类型判断
Type innerType;
if ((innerType = Nullable.GetUnderlyingType(property.Property.PropertyType)) != null)
{
intellectTypeProcessor = ThriftTypeProcessorMapping.Instance.GetProcessor(innerType);
if (intellectTypeProcessor != null)
{
//添加热缓存
IThriftTypeProcessor processor = intellectTypeProcessor;
property.CacheProcess = delegate(IMemorySegmentProxy innerProxy, ThriftPropertyAttribute innerAttribute, ToBytesAnalyseResult innerAnalyseResult, object innerTarget, bool innerIsArrayElement, bool innerNullable)
{
processor.Process(innerProxy, innerAttribute, innerAnalyseResult, innerTarget, innerIsArrayElement, true);
};
property.CacheProcess(proxy, property.Attribute, property, obj, false, true);
property.HasCacheFinished = true;
continue;
}
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE, property.Attribute.Id, property.Property.Name, property.Property.PropertyType));
}
#endregion
#region Thrift Object类型判断
if (property.Property.PropertyType.GetInterface(Consts.ThriftObjectFullName) != null)
{
//添加热缓存
property.CacheProcess = delegate(IMemorySegmentProxy innerProxy, ThriftPropertyAttribute innerAttribute, ToBytesAnalyseResult innerAnalyseResult, object innerTarget, bool innerIsArrayElement, bool innerNullable)
{
IThriftObject innerIntellectObj = innerAnalyseResult.GetValue <IThriftObject>(innerTarget);
if (innerIntellectObj == null)
{
return;
}
innerProxy.WriteByte((byte)innerAttribute.Id);
MemoryPosition startPos = innerProxy.GetPosition();
innerProxy.Skip(4);
ToBytes(innerIntellectObj, innerProxy);
MemoryPosition endPos = innerProxy.GetPosition();
innerProxy.WriteBackInt32(startPos, MemoryPosition.CalcLength(innerProxy.SegmentCount, startPos, endPos) - 4);
};
property.CacheProcess(proxy, property.Attribute, property, obj, false, false);
property.HasCacheFinished = true;
continue;
}
#endregion
#region 数组的判断
if (property.Property.PropertyType.IsArray)
{
if (!property.Property.PropertyType.HasElementType)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE, property.Attribute.Id, property.Property.Name, property.Property.PropertyType));
}
Type elementType = property.Property.PropertyType.GetElementType();
VT vt = FixedTypeManager.IsVT(elementType);
//special optimize.
IThriftTypeProcessor arrayProcessor = ArrayTypeProcessorMapping.Instance.GetProcessor(property.Property.PropertyType);
if (arrayProcessor != null)
{
property.CacheProcess = arrayProcessor.Process;
}
//is VT, but cannot find special processor.
else if (vt != null)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE, property.Attribute.Id, property.Property.Name, property.Property.PropertyType));
}
else if (elementType.IsSubclassOf(typeof(ThriftObject)))
{
//Add hot cache.
property.CacheProcess = delegate(IMemorySegmentProxy innerProxy, ThriftPropertyAttribute innerAttribute, ToBytesAnalyseResult innerAnalyseResult, object innerTarget, bool innerIsArrayElement, bool innerNullable)
{
IThriftObject[] array = innerAnalyseResult.GetValue <IThriftObject[]>(innerTarget);
if (array == null)
{
if (innerAttribute.Optional)
{
return;
}
throw new PropertyNullValueException(string.Format(ExceptionMessage.EX_PROPERTY_VALUE, innerAttribute.Id, innerAnalyseResult.Property.Name, innerAnalyseResult.Property.PropertyType));
}
//property type
innerProxy.WriteSByte((sbyte)innerAttribute.PropertyType);
innerProxy.WriteInt16(((short)innerAttribute.Id).ToBigEndian());
//element type(1) + array length(4)
innerProxy.WriteSByte((sbyte)PropertyTypes.Struct);
innerProxy.WriteInt32(array.Length.ToBigEndian());
for (int i = 0; i < array.Length; i++)
{
IThriftObject element = array[i];
ToBytes(element, innerProxy);
//end flag of Thrift protocol object.
innerProxy.WriteSByte(0x00);
}
};
}
else
{
intellectTypeProcessor = ThriftTypeProcessorMapping.Instance.GetProcessor(elementType);
if (intellectTypeProcessor == null)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE, property.Attribute.Id, property.Property.Name, elementType));
}
//Add hot cache.
IThriftTypeProcessor processor = intellectTypeProcessor;
property.CacheProcess = delegate(IMemorySegmentProxy innerProxy, ThriftPropertyAttribute innerAttribute, ToBytesAnalyseResult innerAnalyseResult, object innerTarget, bool innerIsArrayElement, bool innerNullable)
{
Array array = innerAnalyseResult.GetValue <Array>(innerTarget);
if (array == null)
{
if (innerAttribute.Optional)
{
return;
}
throw new PropertyNullValueException(string.Format(ExceptionMessage.EX_PROPERTY_VALUE, innerAttribute.Id, innerAnalyseResult.Property.Name, innerAnalyseResult.Property.PropertyType));
}
//id(1) + total length(4) + rank(4)
innerProxy.WriteByte((byte)innerAttribute.Id);
MemoryPosition startPosition = innerProxy.GetPosition();
innerProxy.Skip(4);
innerProxy.WriteInt32(array.Length);
for (int i = 0; i < array.Length; i++)
{
object element = array.GetValue(i);
if (element == null)
{
innerProxy.WriteUInt16(0);
}
else
{
MemoryPosition innerStartObjPosition = innerProxy.GetPosition();
innerProxy.Skip(Size.UInt16);
processor.Process(innerProxy, innerAttribute, innerAnalyseResult, element, true);
MemoryPosition innerEndObjPosition = innerProxy.GetPosition();
innerProxy.WriteBackUInt16(innerStartObjPosition, (ushort)(MemoryPosition.CalcLength(innerProxy.SegmentCount, innerStartObjPosition, innerEndObjPosition) - 2));
}
}
MemoryPosition endPosition = innerProxy.GetPosition();
innerProxy.WriteBackInt32(startPosition, MemoryPosition.CalcLength(innerProxy.SegmentCount, startPosition, endPosition) - 4);
};
}
property.CacheProcess(proxy, property.Attribute, property, obj, false, false);
property.HasCacheFinished = true;
continue;
}
#endregion
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE, property.Attribute.Id, property.Property.Name, property.Property.PropertyType));
}
}
