forked from ddrilling/AsbCloudServer
59 lines
1.5 KiB
C#
59 lines
1.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.IO;
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using System.Linq;
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using AsbCloudApp.Data;
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using ClosedXML.Excel;
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namespace AsbCloudInfrastructure;
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public static class XLParserExtensions
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{
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public static ParserResultDto<TDto> Parse<TDto>(this IXLWorksheet sheet,
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Func<IXLRow, ValidationResultDto<TDto>> parseRow,
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int columnCount,
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int headerRowsCount = 0)
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where TDto : class, IId
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{
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if (sheet.RangeUsed().RangeAddress.LastAddress.ColumnNumber < columnCount)
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throw new FileFormatException($"Лист {sheet.Name} содержит меньшее количество столбцов.");
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var count = sheet.RowsUsed().Count() - headerRowsCount;
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if (count > 1024)
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throw new FileFormatException($"Лист {sheet.Name} содержит слишком большое количество строк.");
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if (count <= 0)
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return new ParserResultDto<TDto>();
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var dtos = new List<ValidationResultDto<TDto>>(count);
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var warnings = new List<ValidationResult>();
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for (var i = 0; i < count; i++)
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{
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var row = sheet.Row(1 + i + headerRowsCount);
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try
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{
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var dto = parseRow.Invoke(row);
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dtos.Add(dto);
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}
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catch (FileFormatException ex)
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{
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var warning = new ValidationResult(ex.Message);
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warnings.Add(warning);
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}
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}
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var parserResult = new ParserResultDto<TDto>
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{
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Item = dtos
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};
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if (warnings.Any())
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parserResult.Warnings = warnings;
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return parserResult;
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}
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}
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