Samuele Locatelli
451 lines
16 KiB
C#
451 lines
16 KiB
C#
using GPW.CORE.Data.Controllers;
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using GPW.CORE.Data.DbModels;
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using GPW.CORE.Data.DTO;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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using Newtonsoft.Json;
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using NLog;
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using StackExchange.Redis;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Reflection.PortableExecutable;
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using System.Text;
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using System.Threading.Tasks;
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namespace GPW.CORE.Data.Services
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{
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public class AppAuthService : IDisposable
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{
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#region Public Fields
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// diritti (cablòato)
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public const string RoleSuperAdmin = "MoonPro_SuperAdmin";
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public List<string> Lingue = new List<string>();
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#endregion Public Fields
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#region Public Constructors
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public AppAuthService(IConfiguration configuration, IConnectionMultiplexer redisConnMult)
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{
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_configuration = configuration;
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// cod app
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CodApp = _configuration.GetValue<string>("ServerConf:CodApp") ?? "GPW.ADM";
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Modulo = _configuration.GetValue<string>("ServerConf:Modulo") ?? "GPW";
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// Conf cache
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redisConn = redisConnMult;
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redisDb = this.redisConn.GetDatabase();
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// json serializer... FIX errore loop circolare https://www.ryadel.com/en/jsonserializationexception-self-referencing-loop-detected-error-fix-entity-framework-asp-net-core/
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JSSettings = new JsonSerializerSettings()
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{
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ReferenceLoopHandling = ReferenceLoopHandling.Ignore
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};
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// conf DB
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string connStr = _configuration.GetConnectionString("GPW.DB") ?? "";
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if (string.IsNullOrEmpty(connStr))
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{
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Log.Error("ConnString empty!");
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}
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else
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{
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dbController = new AppAuthController(configuration);
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GpwDbController = new GPWController(configuration);
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userController = new AppUserController(configuration);
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Log.Info("DbController OK");
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}
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}
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#endregion Public Constructors
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#region Public Properties
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public static AppAuthController dbController { get; set; } = null!;
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public static GPWController GpwDbController { get; set; } = null!;
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public static AppUserController userController { get; set; } = null!;
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#endregion Public Properties
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#region Public Methods
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public async Task<List<AnagKeyValueModel>> AnagKeyValList()
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{
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List<AnagKeyValueModel> dbResult = new List<AnagKeyValueModel>();
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Stopwatch stopWatch = new Stopwatch();
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stopWatch.Start();
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dbResult = GpwDbController.AnagKeyValGetAll();
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stopWatch.Stop();
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TimeSpan ts = stopWatch.Elapsed;
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Log.Trace($"Effettuata lettura da DB per AnagKeyValList: {ts.TotalMilliseconds} ms");
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return await Task.FromResult(dbResult);
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}
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/// <summary>
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/// Elenco diritti dato utente
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/// </summary>
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/// <param name="UserName"></param>
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/// <returns></returns>
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public async Task<List<UserDirittiModel>> DirittiGetByUser(string UserName)
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{
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string source = "DB";
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List<UserDirittiModel>? dbResult = new List<UserDirittiModel>();
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string currKey = $"{rKeyDirittiUser}:{UserName}";
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Stopwatch sw = new Stopwatch();
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sw.Start();
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string? rawData = await redisDb.StringGetAsync(currKey);
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if (!string.IsNullOrEmpty(rawData) && rawData.Length > 2)
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{
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source = "REDIS";
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var tempResult = JsonConvert.DeserializeObject<List<UserDirittiModel>>(rawData);
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dbResult = tempResult ?? new List<UserDirittiModel>();
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}
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else
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{
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// recupero diritti utente
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dbResult = userController.DirittiUtente(UserName, Modulo);
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rawData = JsonConvert.SerializeObject(dbResult, JSSettings);
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await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
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}
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if (dbResult == null)
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{
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dbResult = new List<UserDirittiModel>();
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}
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sw.Stop();
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Log.Debug($"DirittiGetByUser | {source} | {sw.ElapsedMilliseconds} ms");
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return dbResult;
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}
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public void Dispose()
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{
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// Clear database controller
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dbController.Dispose();
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GpwDbController.Dispose();
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}
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public async Task FlushRedisCache()
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{
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RedisValue pattern = new RedisValue($"{redisBaseAddr}:*");
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bool answ = await ExecFlushRedisPattern(pattern);
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// reset in RAM
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Vocabolario = new Dictionary<string, string>();
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CheckVoc();
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}
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/// <summary>
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/// Menu pagine abilitate dato utente
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/// </summary>
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/// <param name="UserName"></param>
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/// <returns></returns>
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public async Task<List<MenuItemDTO>> MenuUtente(string UserName, string UserLang)
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{
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string source = "DB";
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List<MenuItemDTO>? dbResult = new List<MenuItemDTO>();
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string currKey = $"{rKeyMenuUser}:{UserName}:{UserLang}";
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Stopwatch sw = new Stopwatch();
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sw.Start();
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string? rawData = await redisDb.StringGetAsync(currKey);
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if (!string.IsNullOrEmpty(rawData))
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{
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source = "REDIS";
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var tempResult = JsonConvert.DeserializeObject<List<MenuItemDTO>>(rawData);
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if (tempResult == null)
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{
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dbResult = new List<MenuItemDTO>();
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}
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else
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{
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dbResult = tempResult;
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}
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}
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else
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{
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// verifica preliminare vocabolario
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CheckVoc();
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// recupero permessi utente...
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List<PermessiModel> userRightList = await PermessiGetByUser(UserName);
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// converto in voce menù
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dbResult = userRightList
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// solo le vere voci di menù x parametri gruppo/numero
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.Where(x => x.Numero > 0 && x.Gruppo < 999)
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.OrderBy(g => g.Gruppo)
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.ThenBy(n => n.Numero)
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.Select(x => new MenuItemDTO
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{
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Url = x.Url,
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Title = Traduci(x.Nome ?? x.Url, UserLang),
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Descript = Traduci(x.Descrizione ?? "", UserLang),
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Group = x.Gruppo ?? 0,
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Num = x.Numero ?? 0
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})
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.ToList();
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// salvo in redis...
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rawData = JsonConvert.SerializeObject(dbResult, JSSettings);
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await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
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}
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if (dbResult == null)
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{
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dbResult = new List<MenuItemDTO>();
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}
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sw.Stop();
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Log.Debug($"MenuUtente | {source} | {sw.ElapsedMilliseconds} ms");
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return dbResult;
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}
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/// <summary>
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/// Elenco permessi dato utente
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/// </summary>
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/// <param name="UserName"></param>
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/// <returns></returns>
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public async Task<List<PermessiModel>> PermessiGetByUser(string UserName)
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{
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string source = "DB";
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List<PermessiModel>? dbResult = new List<PermessiModel>();
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string currKey = $"{rKeyPermUser}:{UserName}";
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Stopwatch sw = new Stopwatch();
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sw.Start();
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string? rawData = await redisDb.StringGetAsync(currKey);
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if (!string.IsNullOrEmpty(rawData))
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{
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source = "REDIS";
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var tempResult = JsonConvert.DeserializeObject<List<PermessiModel>>(rawData);
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if (tempResult == null)
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{
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dbResult = new List<PermessiModel>();
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}
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else
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{
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dbResult = tempResult;
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}
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}
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else
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{
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// recupero diritti utente
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var userRightList = userController.DirittiUtente(UserName, Modulo);
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// proietto come funzioni...
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var ListFunc = userRightList.Select(x => x.Funzione).ToList();
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// trasformo i permessi utente
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if (ListFunc == null)
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{
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ListFunc = new List<string>();
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}
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dbResult = dbController.PermessiGetByFunc(ListFunc);
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rawData = JsonConvert.SerializeObject(dbResult, JSSettings);
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await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
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}
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if (dbResult == null)
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{
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dbResult = new List<PermessiModel>();
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}
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sw.Stop();
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Log.Debug($"PermessiGetByUser | {source} | {sw.ElapsedMilliseconds} ms");
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return dbResult;
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}
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public string Traduci(string lemma, string lingua = "IT")
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{
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string answ = $"__{lemma}__";
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string keyReq = $"{lingua}#{lemma}";
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CheckVoc();
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// cerco in vocabolario...
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if (Vocabolario.ContainsKey(keyReq))
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{
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answ = Vocabolario[keyReq];
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}
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return answ;
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}
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#endregion Public Methods
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#region Protected Methods
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protected void CheckVoc()
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{
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if (Vocabolario.Count == 0)
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{
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string source = "DB";
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string currKey = "";
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string? rawData = "";
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Stopwatch sw = new Stopwatch();
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sw.Start();
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// lingue
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currKey = $"{redisBaseAddr}:MP:LANG";
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rawData = redisDb.StringGet(currKey);
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if (!string.IsNullOrEmpty(rawData) && rawData.Length > 2)
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{
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var tempResult = JsonConvert.DeserializeObject<List<string>>(rawData);
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Lingue = tempResult ?? new List<string>();
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}
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else
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{
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Lingue = dbController
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.LingueGetAll()
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.Select(x => x.Lingua)
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.ToList();
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rawData = JsonConvert.SerializeObject(Lingue);
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redisDb.StringSet(currKey, rawData, UltraLongCache);
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}
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// vocabolario
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currKey = $"{redisBaseAddr}:MP:VOCAB";
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rawData = redisDb.StringGet(currKey);
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if (!string.IsNullOrEmpty(rawData) && rawData.Length > 2)
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{
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source = "REDIS";
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var tempResult = JsonConvert.DeserializeObject<Dictionary<string, string>>(rawData);
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Vocabolario = tempResult ?? new Dictionary<string, string>();
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}
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else
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{
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Vocabolario = dbController
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.VocabolarioGetAll()
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.ToDictionary(x => $"{x.Lingua}#{x.Lemma}", x => x.Traduzione);
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rawData = JsonConvert.SerializeObject(Vocabolario);
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redisDb.StringSet(currKey, rawData, UltraLongCache);
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}
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sw.Stop();
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Log.Trace($"Rilettura Vocabolario | {source} | {sw.ElapsedMilliseconds} ms");
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}
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}
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#endregion Protected Methods
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#region Private Fields
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// gestione key Redis
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private const string redisBaseAddr = "GPW:ADM";
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private const string rKeyDirittiUser = $"{redisBaseAddr}:DIR_USER";
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private const string rKeyMenuUser = $"{redisBaseAddr}:MENU_USER";
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private const string rKeyPermUser = $"{redisBaseAddr}:PERM_USER";
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private static JsonSerializerSettings? JSSettings;
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private static Logger Log = LogManager.GetCurrentClassLogger();
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private static string Modulo = "";
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/// <summary>
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/// Durata cache lunga IN SECONDI
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/// </summary>
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private int cacheTtlLong = 60 * 5;
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/// <summary>
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/// Durata cache breve IN SECONDI
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/// </summary>
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private int cacheTtlShort = 60 * 1;
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/// <summary>
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/// Oggetto per connessione a REDIS
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/// </summary>
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private IConnectionMultiplexer redisConn;
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//ISubscriber sub = redis.GetSubscriber();
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/// <summary>
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/// Oggetto DB redis da impiegare x chiamate R/W
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/// </summary>
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private IDatabase redisDb = null!;
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private Random rnd = new Random();
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private Dictionary<string, string> Vocabolario = new Dictionary<string, string>();
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#endregion Private Fields
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#region Private Properties
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private static IConfiguration _configuration { get; set; } = null!;
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private string CodApp { get; set; } = "";
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/// <summary>
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/// Durata cache lunga (+ perturbazione percentuale +/-10%)
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/// </summary>
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private TimeSpan FastCache
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{
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get => TimeSpan.FromSeconds(cacheTtlShort * rnd.Next(900, 1100) / 1000);
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}
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/// <summary>
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/// Durata cache lunga (+ perturbazione percentuale +/-10%)
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/// </summary>
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private TimeSpan LongCache
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{
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get => TimeSpan.FromSeconds(cacheTtlLong * rnd.Next(900, 1100) / 1000);
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}
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/// <summary>
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/// Durata cache lunga (+ perturbazione percentuale +/-10%)
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/// </summary>
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private TimeSpan UltraLongCache
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{
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get => TimeSpan.FromSeconds(cacheTtlLong * 10 * rnd.Next(900, 1100) / 1000);
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}
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#endregion Private Properties
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#region Private Methods
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/// <summary>
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/// Esegue flush memoria redis dato pat2Flush
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/// </summary>
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/// <param name="pat2Flush"></param>
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/// <returns></returns>
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private async Task<bool> ExecFlushRedisPattern(RedisValue pat2Flush)
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{
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bool answ = false;
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var masterEndpoint = redisConn.GetEndPoints()
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.Where(ep => redisConn.GetServer(ep).IsConnected && !redisConn.GetServer(ep).IsReplica)
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.FirstOrDefault();
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// sepattern è "*" elimino intero DB...
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if (masterEndpoint != null && (pat2Flush.Equals(new RedisValue("*")) || pat2Flush == RedisValue.Null))
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{
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redisConn.GetServer(masterEndpoint).FlushDatabase(database: redisDb.Database);
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}
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else
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{
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var server = redisConn.GetServer(masterEndpoint);
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var keys = server.Keys(database: redisDb.Database, pattern: pat2Flush, pageSize: 1000);
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var deleteTasks = new List<Task>();
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foreach (var key in keys)
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{
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deleteTasks.Add(redisDb.KeyDeleteAsync(key));
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if (deleteTasks.Count >= 1000)
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{
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await Task.WhenAll(deleteTasks);
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deleteTasks.Clear();
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}
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}
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if (deleteTasks.Count > 0)
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{
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await Task.WhenAll(deleteTasks);
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}
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}
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answ = true;
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#if false
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var listEndpoints = redisConn.GetEndPoints();
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foreach (var endPoint in listEndpoints)
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{
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//var server = redisConnAdmin.GetServer(listEndpoints[0]);
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var server = redisConn.GetServer(endPoint);
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if (server != null)
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{
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var keyList = server.Keys(redisDb.Database, pattern);
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foreach (var item in keyList)
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{
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await redisDb.KeyDeleteAsync(item);
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}
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answ = true;
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}
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}
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#endif
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return answ;
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}
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#endregion Private Methods
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}
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} |