internal static void Write(object e, int tag, TarsOutputStream jos)
{
TarsStructInfo info = TarsHelper.GetStructInfo(e.GetType());
if (info == null)
{
throw new TarsDecodeException("the class type[" + e.GetType().FullName + "] no attribute Struct");
}
jos.WriteHead(TarsStructBase.STRUCT_BEGIN, tag);
List <TarsStructPropertyInfo> propertysList = info.PropertyList;
foreach (var propertyInfo in propertysList)
{
Object value = propertyInfo.PropertyAccessor.GetValue(e);
if (value == null && propertyInfo.IsRequire)
{
throw new TarsEncodeException(propertyInfo.Name + " is require tag ,order=" + propertyInfo.Order);
}
if (value != null)
{
jos.Write(value, propertyInfo.Order);
}
}
jos.WriteHead(TarsStructBase.STRUCT_END, 0);
}
internal static object Read(Type type, int tag, bool isRequire, TarsInputStream jis)
{
TarsStructInfo info = TarsHelper.GetStructInfo(type);
if (info == null)
{
throw new TarsDecodeException("the class type[" + type.FullName + "] no attribute Struct");
}
if (jis.SkipToTag(tag))
{
HeadData hd = new HeadData();
jis.ReadHead(hd);
if (hd.Type != TarsStructBase.STRUCT_BEGIN)
{
throw new TarsDecodeException("type mismatch.");
}
Object result = info.ConstructorInvoker.Invoke();
List <TarsStructPropertyInfo> propertysList = info.PropertyList;
foreach (var propertyInfo in propertysList)
{
Object value = jis.Read(propertyInfo.Type, propertyInfo.Order, propertyInfo.IsRequire);
propertyInfo.PropertyAccessor.SetValue(result, value);
}
jis.SkipToStructEnd();
return(result);
}
else if (isRequire)
{
throw new TarsDecodeException("require field not exist.");
}
return(null);
}
//获取结构体详情
internal static TarsStructInfo GetStructInfo(Type type)
{
TarsStructInfo structInfo = tarsStructCache.GetOrAdd(type, t =>
{
TarsStructInfo tarsStructInfo = new TarsStructInfo();
PropertyInfo[] fields = type.GetProperties(System.Reflection.BindingFlags.Public);
if (fields.Length > 0)
{
List <TarsStructPropertyInfo> propertyList = new List <TarsStructPropertyInfo>();
foreach (var item in fields)
{
TarsStructPropertyAttribute attri = item.GetCustomAttribute <TarsStructPropertyAttribute>();
if (attri != null)
{
TarsStructPropertyInfo propertyInfo = new TarsStructPropertyInfo();
Type fieldType = item.PropertyType;
propertyInfo.Name = item.Name;
propertyInfo.Order = attri.Order;
propertyInfo.IsRequire = attri.IsRequire;
propertyInfo.Comment = attri.Comment;
propertyInfo.PropertyAccessor = new PropertyAccessor(item);
propertyInfo.Type = fieldType;
propertyList.Add(propertyInfo);
}
}
TarsStructAttribute structAttribute = type.GetCustomAttribute <TarsStructAttribute>();
propertyList.Sort((x, y) => x.Order.CompareTo(y.Order));
tarsStructInfo.PropertyList = propertyList;
tarsStructInfo.ConstructorInvoker = new ConstructorInvoker(type.GetConstructor(EmptyTypeArray));
if (structAttribute != null)
{
string comment = structAttribute.Comment;
if (string.IsNullOrWhiteSpace(comment))
{
tarsStructInfo.Comment = comment;
}
}
}
return(tarsStructInfo);
});
return(structInfo);
}
