private static void FillDataToCollection(XmlReader reader, object objectData, Dictionary <string, Type> typeMapping, Type elementType, Type parentType)
{
const string addMethodName = "Add";
int currentDepth = reader.Depth;
bool isValueType = elementType.IsValueType || typeof(string).Equals(elementType) || elementType.IsEnum;
// Type genericType = rawType.GetGenericArguments()[0];
Type genericType = ModuleUtils.GetRawGenericElementType(parentType);
MethodInfo addMethod = parentType.GetMethod(addMethodName, BindingFlags.Instance | BindingFlags.Public, null,
CallingConventions.Standard, new Type[] { genericType }, new ParameterModifier[0]);
GenericCollectionAttribute collectionAttribute =
elementType.GetCustomAttribute <GenericCollectionAttribute>();
reader.Read();
// xml层级等于或者小于父节点时说明集合已经遍历结束，停止遍历
// Reader的更新在Read
while (reader.Depth > currentDepth)
{
// 如果不是节点或者是空节点或者是结束节点，则继续下一行读取
if (reader.NodeType != XmlNodeType.Element || (reader.IsEmptyElement && !reader.HasAttributes) ||
reader.NodeType == XmlNodeType.EndElement)
{
bool readNotOver = reader.Read();
if (!readNotOver)
{
return;
}
continue;
}
if (isValueType)
{
string value = reader.GetAttribute(Constants.ValueTypeName);
if (null != value)
{
object element = ValueConvertor.ReadData(elementType, value);
addMethod.Invoke(objectData, new object[] { element });
}
// Value模式时需要手动去调整reader的位置
reader.Read();
}
else
{
// 填充集合或者类时，reader的shift在FillDataToObject和FillDataToCollection中调用
object element = CreateTypeInstance(typeMapping, GetTypeName(elementType));
if (null == collectionAttribute)
{
FillDataToObject(reader, element, typeMapping);
}
else
{
FillDataToCollection(reader, element, typeMapping, collectionAttribute.GenericType, genericType);
}
addMethod.Invoke(objectData, new object[] { element });
}
}
// 如果是endElement则直接跳过
if (reader.NodeType == XmlNodeType.EndElement)
{
reader.Read();
}
}