public static List <IFilter> CreateFilters <TTemplate>(ExcelHeaderRow headerRow)
{
Type templateType = typeof(TTemplate);
var key = templateType;
if (Table[key] != null)
{
return((List <IFilter>)Table[key]);
}
List <IFilter> filters = new List <IFilter>();
List <BaseFilterAttribute> attrs = new List <BaseFilterAttribute>();
TypeFilterInfo typeFilterInfo = TypeFilterInfoFlyweight.CreateInstance(typeof(TTemplate), headerRow);
typeFilterInfo.PropertyFilterInfos.ForEach(a => a.FilterAttrs.ForEach(f => attrs.Add(f)));
attrs.Distinct(new FilterAttributeComparer()).ToList().ForEach
(a =>
{
var filter = FilterFactory.CreateInstance(a.GetType());
if (filter != null)
{
filters.Add(filter);
}
});
Table[key] = filters;
return(filters);
}
public static TypeFilterInfo CreateInstance(Type importType, ExcelHeaderRow excelHeaderRow)
{
if (importType == null)
{
throw new ArgumentNullException("importDTOType");
}
if (excelHeaderRow == null)
{
throw new ArgumentNullException("excelHeaderRow");
}
var key = importType;
if (Table[key] != null)
{
return((TypeFilterInfo)Table[key]);
}
TypeFilterInfo typeFilterInfo = new TypeFilterInfo()
{
PropertyFilterInfos = new List <PropertyFilterInfo>()
{
}
};
IEnumerable <PropertyInfo> props = importType.GetProperties().ToList().Where(p => p.IsDefined(typeof(ColNameAttribute)));
props.ToList().ForEach(p =>
{
string colName = p.GetCustomAttribute <ColNameAttribute>().ColName;
ExcelCol col = excelHeaderRow.Cells.SingleOrDefault(c => c.ColName == colName);
if (col != null)
{
typeFilterInfo.PropertyFilterInfos.Add(
new PropertyFilterInfo
{
ColIndex = col.ColIndex,
FilterAttrs = p.GetCustomAttributes <BaseFilterAttribute>()?.ToList()
});
}
});
Table[key] = typeFilterInfo;
return(typeFilterInfo);
}
/// <summary>
/// 获取某单元格的某校验类型集合
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="col"></param>
/// <param name="typeFilterInfo"></param>
/// <returns></returns>
public static List <T> GetFilterAttrs <T>(this ExcelDataCol col, TypeFilterInfo typeFilterInfo)
where T : BaseFilterAttribute
{
return(typeFilterInfo.PropertyFilterInfos.SingleOrDefault(a => a.ColIndex == col.ColIndex)?.
FilterAttrs?.Where(e => e.GetType() == typeof(T)).Cast <T>().ToList());
}
/// <summary>
/// 获取某单元格的某校验特性
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="col"></param>
/// <param name="typeAttrs"></param>
/// <returns></returns>
public static T GetFilterAttr <T>(this ExcelDataCol col, TypeFilterInfo typeFilterInfo)
where T : BaseFilterAttribute
{
return((T)typeFilterInfo.PropertyFilterInfos.SingleOrDefault(a => a.ColIndex == col.ColIndex)?.
FilterAttrs?.SingleOrDefault(e => e.GetType() == typeof(T)));
}
