/// <summary>
/// 构建读取帮助者
/// </summary>
/// <param name="byTmplType"></param>
/// <returns></returns>
public static IReadHelper Make(System.Type byTmplType)
{
if (byTmplType == null)
{
// 如果参数对象为空,
// 则直接退出!
return(null);
}
// 获取读取器
IReadHelper helperObj = GetHelperObj(byTmplType);
if (helperObj == null)
{
// 如果读取器为空,
// 则需要构建!
lock (byTmplType)
{
// 注意: 在这里进行二次验证
helperObj = GetHelperObj(byTmplType);
if (helperObj == null)
{
// 构建帮助器类定义
System.Type helperType = BuildHelperType(byTmplType);
// 创建对象实例
helperObj = (IReadHelper)Activator.CreateInstance(helperType);
// 添加到帮助器字典
PutHelperObj(byTmplType, helperObj);
}
}
}
return(helperObj);
}
/// <summary>
/// 保存帮助器到字典
/// </summary>
/// <param name="byTmplType"></param>
/// <param name="helperObj"></param>
private static void PutHelperObj(System.Type byTmplType, IReadHelper helperObj)
{
// 断言参数不为空
Assert.NotNull(byTmplType, "byTmplType");
Assert.NotNull(helperObj, "helperObj");
// 保存帮助器到字典
_helperObjDict[byTmplType] = helperObj;
}
// @Override
public override void ReadFrom(BinaryReader br)
{
if (br == null)
{
// 如果参数对象为空,
// 则直接退出!
return;
}
// 获取帮助器对象
IReadHelper helperObj = ReadHelperMaker.Make(this.GetType());
if (helperObj != null)
{
// 如果帮助器不为空,
// 则读取消息对象!
helperObj.ReadMsgObjFrom(this, br);
}
}
// @Override
protected override void ReadImpl(XlsxRowReadStream fromStream)
{
if (fromStream == null)
{
// 如果参数对象为空,
// 则直接退出!
return;
}
// 获取帮助器对象
IReadHelper helperObj = ReadHelperMaker.Make(this.GetType());
if (helperObj != null)
{
// 如果帮助器不为空,
// 则读取消息对象!
helperObj.ReadTmplObjFrom(this, fromStream);
}
}
