58 lines
1.3 KiB
C#
58 lines
1.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using AudibleUtilities;
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using DataLayer;
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using Dinah.Core;
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namespace DtoImporterService
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{
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public abstract class ImporterBase<T>
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{
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protected LibationContext DbContext { get; }
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protected ImporterBase(LibationContext context)
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{
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ArgumentValidator.EnsureNotNull(context, nameof(context));
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DbContext = context;
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}
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/// <summary>LONG RUNNING. call with await Task.Run</summary>
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public int Import(T param) => Run(DoImport, param);
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public TResult Run<TResult>(Func<T, TResult> func, T param)
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{
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try
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{
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var exceptions = Validate(param);
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if (exceptions != null && exceptions.Any())
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throw new AggregateException($"Importer validation failed", exceptions);
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}
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catch (Exception ex)
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{
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Serilog.Log.Logger.Error(ex, "Import error: validation");
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throw;
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}
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try
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{
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var result = func(param);
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return result;
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}
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catch (Exception ex)
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{
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Serilog.Log.Logger.Error(ex, "Import error: post-validation importing");
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throw;
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}
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}
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protected abstract int DoImport(T elements);
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public abstract IEnumerable<Exception> Validate(T param);
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}
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public abstract class ItemsImporterBase : ImporterBase<IEnumerable<ImportItem>>
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{
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protected ItemsImporterBase(LibationContext context) : base(context) { }
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}
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}
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