public void WriteValue(IStreamWriter writer, ISerializeContext context, object value)
{
// Complex structure
// TypeID UInt32
// ContentType Byte
context.Key = this.Name;
if (isObject)
{
// property or collection does not specify a target type
// determine object type
if (value != null)
{
Type valType = value.GetType();
IValueItem item;
var differentTargetStructure = context.DetermineSpecialInterfaceType(value.GetType(), type);
if (differentTargetStructure != null)
{
item = differentTargetStructure;
}
else
{
item = context.GetByType(valType);
}
if (!item.IsTypePrefixExpected)
{
// Write type id for value types as well (unknown structure)
writer.WriteUInt32(item.TypeId);
writer.WriteUInt8(ValueItem.SingleValueIdent);
}
item.WriteValue(writer, context, value);
}
else
{
// write complex object type id for null value
writer.WriteInt32((int)ItemType.ComplexObject);
writer.WriteUInt8(ValueItem.NullValueIdent);
}
}
else if (value == null)
{
// Write null
writer.WriteUInt32(this.TypeId);
writer.WriteUInt8(ValueItem.NullValueIdent);
}
else
{
IValueItem differentTargetStructure = null;
if (CheckDifferentType)
{
differentTargetStructure = context.DetermineSpecialInterfaceType(value.GetType(), type);
}
if (differentTargetStructure != null)
{
// Special target interface type serialization
differentTargetStructure.WriteValue(writer, context, value);
}
else
{
// Just write type properties
writer.WriteUInt32(this.TypeId);
if (context.IsWriteTypeMetaInfoRequired(this.TypeId))
{
// serialize type meta info at the first time
TypeMetaStructure.WriteTypeMetaInfo(writer, this);
}
writer.WriteUInt8(ValueItem.SingleObjectIdent);
object oldParentObj = context.ParentObject;
context.ParentObject = value;
for (int itemIndex = 0; itemIndex < items.Count; itemIndex++)
{
var item = items[itemIndex];
var valueItem = item.GetItemValue(value);
item.WriteValue(writer, context, valueItem);
}
context.ParentObject = oldParentObj;
}
}
}
