71 lines
2.6 KiB
C#
71 lines
2.6 KiB
C#
using ConsoleApp2.Const;
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using ConsoleApp2.Helpers;
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using ConsoleApp2.HostedServices.Abstractions;
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using ConsoleApp2.Options;
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using ConsoleApp2.Services;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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namespace ConsoleApp2.HostedServices;
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/// <summary>
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/// 从MyDumper导出的CSV文件中导入表头和数据
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/// </summary>
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public class InputService : IInputService
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{
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private readonly ILogger _logger;
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private readonly IOptions<CsvOptions> _csvOptions;
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private readonly DataRecordQueue _producerQueue;
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private readonly ProcessContext _context;
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public InputService(ILogger<InputService> logger,
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IOptions<CsvOptions> csvOptions,
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[FromKeyedServices(ProcessStep.Producer)]DataRecordQueue producerQueue,
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ProcessContext context)
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{
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_logger = logger;
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_csvOptions = csvOptions;
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_producerQueue = producerQueue;
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_context = context;
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}
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public async Task ExecuteAsync(CancellationToken cancellationToken)
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{
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var inputDir = _csvOptions.Value.InputDir;
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_logger.LogInformation("***** Csv input service start, working dir: {InputDir}, thread id: {ThreadId} *****", inputDir, Environment.CurrentManagedThreadId);
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var files = Directory.GetFiles(inputDir).Where(s => s.EndsWith(".sql") && !s.Contains("schema")).ToArray();
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if (files.Length == 0)
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{
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_logger.LogInformation("No sql files found in {InputDir}", inputDir);
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return;
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}
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foreach (var sqlPath in files)
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{
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_logger.LogInformation("Working sql file: {SqlPath}", sqlPath);
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var headers = await DumpDataHelper.GetCsvHeadersFromSqlFileAsync(sqlPath);
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var csvFiles = await DumpDataHelper.GetCsvFileNamesFromSqlFileAsync(sqlPath);
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foreach (var csvFile in csvFiles)
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{
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var csvPath = Path.Combine(inputDir, csvFile);
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// var source = new JsvSource(csvPath, headers, _logger);
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var source = new CsvSource(csvPath, headers, _csvOptions.Value.Delimiter, _csvOptions.Value.QuoteChar, _logger);
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while (await source.ReadAsync())
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{
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_context.AddInput();
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_producerQueue.Enqueue(source.Current);
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if (cancellationToken.IsCancellationRequested)
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return;
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}
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}
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_logger.LogInformation("File '{File}' input completed", Path.GetFileName(sqlPath));
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}
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_context.CompleteInput();
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_logger.LogInformation("***** Csv input service completed *****");
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}
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} |