41 lines
1.3 KiB
C#
41 lines
1.3 KiB
C#
namespace MesETL.App.Options;
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/// <summary>
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/// 多租户分库配置
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/// </summary>
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public class TenantDbOptions
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{
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public string? TenantKey { get; set; }
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public string? UseDbGroup { get; set; }
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/// <summary>
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/// Key-Value: {DbName}-{TenantKeyLessThan}
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/// </summary>
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public Dictionary<string, int>? DbGroup { get; set; }
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public string GetDbNameByTenantKeyValue(int tenantKeyValue)
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{
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// var dictionary = new SortedDictionary<int, string>();
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// DbList.ForEach(pair => dictionary.Add(pair.Value, pair.Key));
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// 注意配置顺序
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if(DbGroup is null) throw new ApplicationException("分库配置中没有发现任何数据库");
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#region 性能较低，不使用
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// var dbName = DbGroup.Cast<KeyValuePair<string, int>?>()
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// .FirstOrDefault(pair => pair?.Value != null && pair.Value.Value > tenantKeyValue)!.Value.Key;
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#endregion
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string? dbName = null;
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foreach (var (key, value) in DbGroup)
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{
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if (value > tenantKeyValue)
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dbName = key;
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}
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return dbName ??
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throw new ArgumentOutOfRangeException(nameof(tenantKeyValue),
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$"分库配置中没有任何符合'{nameof(tenantKeyValue)}'值的数据库");
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}
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} |