/// <summary>
/// 将一个对象字段转换为二进制元数据
/// </summary>
/// <param name="metadata">需要转换成元数据的Value字典</param>
/// <param name="proxy">内存段代理器</param>
internal unsafe static void ToBytes(ResourceBlock metadata, IMemorySegmentProxy proxy)
{
Dictionary <byte, BaseValueStored> valueStoreds = metadata.GetMetaDataDictionary();
uint markRangeLength = (uint)(valueStoreds.Count * 5);
MemoryPosition wrapperStartPosition = proxy.GetPosition();
proxy.Skip(4U);
proxy.WriteUInt16((ushort)(valueStoreds.Count));
MemoryPosition wrapperMarkRangeStartPosition = proxy.GetPosition();
proxy.Skip(markRangeLength);
MemoryPosition wrapperOffsetStartPosition = proxy.GetPosition();
MarkRange * markRange = stackalloc MarkRange[valueStoreds.Count];
int i = 0;
foreach (KeyValuePair <byte, BaseValueStored> valueStored in valueStoreds)
{
//转化成二进制数组的形式
MemoryPosition wrapperCurrentPosition = proxy.GetPosition();
uint currentOffset = (uint)MemoryPosition.CalcLength(proxy.SegmentCount, wrapperOffsetStartPosition, wrapperCurrentPosition);
(markRange + i)->Id = valueStored.Key;
(markRange + i++)->Flag = (uint)((currentOffset << 8) | (int)valueStored.Value.TypeId);
if (valueStored.Value.IsNull)
{
continue;
}
valueStored.Value.ToBytes(proxy);
}
MemoryPosition wrapperEndPosition = proxy.GetPosition();
//回写mark Range
proxy.WriteBackMemory(wrapperMarkRangeStartPosition, markRange, markRangeLength);
//回写4bytes总长
proxy.WriteBackInt32(wrapperStartPosition, MemoryPosition.CalcLength(proxy.SegmentCount, wrapperStartPosition, wrapperEndPosition));
}
/// <summary>
/// 从第三方客户数据转换为元数据
/// </summary>
/// <param name="proxy">内存片段代理器</param>
/// <param name="attribute">字段属性</param>
/// <param name="analyseResult">分析结果</param>
/// <param name="target">目标对象实例</param>
/// <param name="isArrayElement">当前写入的值是否为数组元素标示</param>
public override void Process(IMemorySegmentProxy proxy, IntellectPropertyAttribute attribute, ToBytesAnalyseResult analyseResult, object target, bool isArrayElement = false, bool isNullable = false)
{
string[] value = analyseResult.GetValue <string[]>(target);
if (value == null)
{
if (!attribute.IsRequire)
{
return;
}
throw new PropertyNullValueException(string.Format(ExceptionMessage.EX_PROPERTY_VALUE, attribute.Id, analyseResult.Property.Name, analyseResult.Property.PropertyType));
}
//id(1) + total length(4) + rank(4)
proxy.WriteByte((byte)attribute.Id);
MemoryPosition position = proxy.GetPosition();
proxy.Skip(4U);
proxy.WriteInt32(value.Length);
if (value.Length == 0)
{
proxy.WriteBackInt32(position, 4);
return;
}
for (int i = 0; i < value.Length; i++)
{
string elementValue = value[i];
if (string.IsNullOrEmpty(elementValue))
{
proxy.WriteUInt16(0);
}
else
{
byte[] elementData = Encoding.UTF8.GetBytes(elementValue);
proxy.WriteUInt16((ushort)elementData.Length);
proxy.WriteMemory(elementData, 0U, (uint)elementData.Length);
}
}
MemoryPosition endPosition = proxy.GetPosition();
proxy.WriteBackInt32(position, MemoryPosition.CalcLength(proxy.SegmentCount, position, endPosition) - 4);
}
/// <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));
}
}
/// <summary>
/// 将指定类型的实例序列化为二进制数据
/// </summary>
/// <param name="type">类型</param>
/// <param name="instance">实例对象</param>
/// <param name="proxy">内存段代理器</param>
/// <returns>返回序列化后的二进制数据, 如果instance为null, 则返回null</returns>
/// <exception cref="NotSupportedException">不被支持的类型</exception>
private static void ToBytes(Type type, object instance, IMemorySegmentProxy proxy)
{
Type innerType;
Action <IMemorySegmentProxy, object> cache;
lock (_serLockObj)
{
if (_serializers.TryGetValue(type.FullName, out cache))
{
cache(proxy, instance);
return;
}
IIntellectTypeProcessor intellectTypeProcessor;
#region 普通类型判断
intellectTypeProcessor = IntellectTypeProcessorMapping.Instance.GetProcessor(type);
if (intellectTypeProcessor != null)
{
//添加热缓存
IIntellectTypeProcessor processor = intellectTypeProcessor;
_serializers.Add(type.FullName, (cache = (innerProxy, innerObj) => processor.Process(innerProxy, innerObj)));
}
#endregion
#region 枚举类型判断
//枚举类型
else if (type.GetTypeInfo().IsEnum)
{
//获取枚举类型
Type enumType = Enum.GetUnderlyingType(type);
intellectTypeProcessor = IntellectTypeProcessorMapping.Instance.GetProcessor(enumType);
if (intellectTypeProcessor == null)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE_TEMPORARY, type));
}
IIntellectTypeProcessor processor = intellectTypeProcessor;
_serializers.Add(type.FullName, (cache = (innerProxy, innerObj) => processor.Process(innerProxy, innerObj)));
}
#endregion
#region 可空类型判断
else if ((innerType = Nullable.GetUnderlyingType(type)) != null)
{
intellectTypeProcessor = IntellectTypeProcessorMapping.Instance.GetProcessor(innerType);
if (intellectTypeProcessor == null)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE_TEMPORARY, innerType));
}
IIntellectTypeProcessor processor = intellectTypeProcessor;
_serializers.Add(type.FullName, (cache = (innerProxy, innerObj) => processor.Process(innerProxy, innerObj)));
}
#endregion
#region 智能对象类型判断
else if (type.GetTypeInfo().IsSubclassOf(typeof(IntellectObject)))
{
_serializers.Add(type.FullName, (cache = (innerProxy, innerObj) => { IntellectObjectEngine.ToBytes((IIntellectObject)innerObj, innerProxy); }));
}
#endregion
#region 数组的判断
else if (type.IsArray)
{
if (!type.HasElementType)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE_TEMPORARY, type));
}
Type elementType = type.GetElementType();
VT vt = FixedTypeManager.IsVT(elementType);
IIntellectTypeProcessor arrayProcessor = ArrayTypeProcessorMapping.Instance.GetProcessor(type);
if (arrayProcessor != null)
{
_serializers.Add(type.FullName, (cache = (innerProxy, innerObj) => arrayProcessor.Process(innerProxy, innerObj)));
}
else if (vt != null)
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE_TEMPORARY, type));
}
else if (elementType.GetTypeInfo().IsSubclassOf(typeof(IntellectObject)))
{
//Add hot cache.
_serializers.Add(type.FullName, (cache = (innerProxy, innerObj) =>
{
IIntellectObject[] array = (IIntellectObject[])innerObj;
if (array == null || array.Length == 0)
{
return;
}
//write array length.
innerProxy.WriteUInt32((uint)array.Length);
for (int i = 0; i < array.Length; i++)
{
if (array[i] == null)
{
innerProxy.WriteUInt16(0);
}
else
{
MemoryPosition innerStartObjPosition = innerProxy.GetPosition();
innerProxy.Skip(Size.UInt16);
IntellectObjectEngine.ToBytes(array[i], innerProxy);
MemoryPosition innerEndObjPosition = innerProxy.GetPosition();
innerProxy.WriteBackUInt16(innerStartObjPosition, (ushort)(MemoryPosition.CalcLength(innerProxy.SegmentCount, innerStartObjPosition, innerEndObjPosition) - 2));
}
}
}));
}
else
{
throw new NotSupportedException(string.Format(ExceptionMessage.EX_NOT_SUPPORTED_VALUE_TEMPORARY, type));
}
}
#endregion
cache(proxy, instance);
}
}