46 lines
1.8 KiB
C#
46 lines
1.8 KiB
C#
using SJZY.Expand.ABP.Core;
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using SJZY.Track.Domain.Aggregates.TrackStatusAggregate;
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using SJZY.Track.Domain.Extensions;
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using Volo.Abp.DependencyInjection;
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namespace SJZY.Track.Application.Caching;
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/// <summary>
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/// 轨迹状态id名称字典缓存
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/// </summary>
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public class TrackStatusNameDictCache : BasicCacheForPeriodicRefresh<int, string>, ISingletonDependency
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{
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private readonly ITrackStatusRepository _trackStatusRepository;
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public TrackStatusNameDictCache(ITrackStatusRepository trackStatusRepository) : base(RedisHelper.Client)
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{
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_trackStatusRepository = trackStatusRepository;
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}
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protected override string BuildRedisKey(int key) => $"{GlobalConst.TrackDataDictKeyPrefix}:TrackStatus:{key}";
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protected override TimeSpan RedisExpire => TimeSpan.FromSeconds(-1); // 设置缓存不过期，指定id状态删除时仍能提供兜底状态名称
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protected override TimeSpan LocalExpire => TimeSpan.FromMinutes(5); // 本地缓存5分钟过期后在次请求会刷新数据
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protected override TimeSpan MissingKeySetNullRedisExpire => TimeSpan.FromMinutes(1); // 缓存不存在时设置redisNull
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protected override async ValueTask<string?> LoadAsync(int key)
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{
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if (key == 0) return null;
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return await _trackStatusRepository.GetFirstAsync(x => x.Id == key, x => x.Status);
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}
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protected override async ValueTask<Dictionary<int, string>> LoadAsync(HashSet<int> keys)
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{
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if (keys.Count == 0) return Empty<int, string>.Dict;
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var result = await _trackStatusRepository.GetListAsync(x => keys.Contains(x.Id), x => new
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{
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x.Id,
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x.Status
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});
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return result.Count == 0
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? Empty<int, string>.Dict
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: result.ToDictionary(x => x.Id, y => y.Status);
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}
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}
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