mapo-core/MP.Data/Services/ListSelectDataSrv.cs

using Microsoft.Extensions.Configuration;
using MP.Core.Conf;
using MP.Data.DbModels;
using Newtonsoft.Json;
using NLog;
using StackExchange.Redis;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MP.Data.Services
{
    /// <summary>
    /// Classe accesso dati filtrati per operatore
    /// </summary>
    public class ListSelectDataSrv : BaseServ
    {
        #region Public Constructors

        public ListSelectDataSrv(IConfiguration configuration, IConnectionMultiplexer redConn) : base(configuration, redConn)
        {
            // conf DB
            string connStr = _configuration.GetConnectionString("MP.All");
            if (string.IsNullOrEmpty(connStr))
            {
                Log.Error("ConnString empty!");
            }
            else
            {
                StringBuilder sb = new StringBuilder();
                dbController = new Controllers.MpSpecController(configuration);
                sb.AppendLine($"ListSelectDataSrv | MpSpecController OK");
                Log.Info(sb.ToString());
            }
        }

        #endregion Public Constructors

        #region Public Properties

        public static Controllers.MpSpecController dbController { get; set; } = null!;

        #endregion Public Properties

        #region Public Methods

        /// <summary>
        /// Elenco tabella Articoli da filtro
        /// </summary>
        /// <param name="numRecord">Numero record max da recuperare</param>
        /// <param name="azienda">cod azienda, * = tutte</param>
        /// <param name="searchVal">Ricerca testuale</param>
        /// <returns></returns>
        public async Task<List<AnagArticoliModel>> ArticoliGetSearch(int numRecord, string azienda, string searchVal)
        {
            string source = "DB";
            Stopwatch sw = new Stopwatch();
            sw.Start();
            List<AnagArticoliModel>? result = new List<AnagArticoliModel>();
            // cerco in redisConn...
            string currKey = $"{redisBaseKey}:Art:{azienda}:{searchVal}:{numRecord}";
            RedisValue rawData = await redisDb.StringGetAsync(currKey);
            if (rawData.HasValue)
            {
                result = JsonConvert.DeserializeObject<List<AnagArticoliModel>>($"{rawData}");
                source = "REDIS";
            }
            else
            {
                result = dbController.ArticoliGetSearch(numRecord, azienda, searchVal);
#if false
                result = await Task.FromResult(dbController.ArticoliGetSearch(numRecord, azienda, searchVal));
#endif
                // serializzp e salvo...
                rawData = JsonConvert.SerializeObject(result);
                await redisDb.StringSetAsync(currKey, rawData, LongCache);
            }
            if (result == null)
            {
                result = new List<AnagArticoliModel>();
            }
            sw.Stop();
            Log.Debug($"ArticoliGetSearch | azienda: {azienda} | searchVal: {searchVal} | numRecord: {numRecord} | {source} | {sw.Elapsed.TotalMilliseconds}ms");
            return result;
        }

        /// <summary>
        /// Recupero elenco config
        /// </summary>
        /// <returns></returns>
        public async Task<List<ConfigModel>> ConfigGetAll()
        {
            string source = "DB";
            Stopwatch sw = new Stopwatch();
            sw.Start();
            List<ConfigModel>? result = new List<ConfigModel>();
            // cerco in redisConn...
            string currKey = $"{redisBaseKey}:Conf";
            RedisValue rawData = await redisDb.StringGetAsync(currKey);
            if (rawData.HasValue)
            {
                result = JsonConvert.DeserializeObject<List<ConfigModel>>($"{rawData}");
                source = "REDIS";
            }
            else
            {
                result = dbController.ConfigGetAll();
                // serializzo e salvo...
                rawData = JsonConvert.SerializeObject(result);
                redisDb.StringSet(currKey, rawData, LongCache);
            }
            if (result == null)
            {
                result = new List<ConfigModel>();
            }
            sw.Stop();
            Log.Debug($"ConfigGetAll | {source} | {sw.Elapsed.TotalMilliseconds}ms");
            return result;
        }

        /// <summary>
        /// Pulizia cache Redis (tutta)
        /// </summary>
        /// <returns></returns>
        public async Task<bool> FlushCache()
        {
            RedisValue pattern = new RedisValue($"{redisBaseKey}:*");
            bool answ = await ExecFlushRedisPattern(pattern);
            return answ;
        }

        /// <summary>
        /// Pulizia cache Redis per chiave specifica (da redisBaseKey...)
        /// </summary>
        /// <returns></returns>
        public async Task<bool> FlushCache(string KeyReq)
        {
            RedisValue pattern = new RedisValue($"{redisBaseKey}:{KeyReq}:*");
            bool answ = await ExecFlushRedisPattern(pattern);
            return answ;
        }

        /// <summary>
        /// Elenco link JQM (totale)
        /// </summary>
        /// <returns></returns>
        public async Task<List<LinkMenuModel>> ListLinkAll()
        {
            string source = "DB";
            Stopwatch sw = new Stopwatch();
            sw.Start();
            List<LinkMenuModel>? result = new List<LinkMenuModel>();
            // cerco in redisConn...
            string currKey = $"{redisBaseKey}:Menu:ALL";
            RedisValue rawData = await redisDb.StringGetAsync(currKey);
            if (rawData.HasValue)
            {
                result = JsonConvert.DeserializeObject<List<LinkMenuModel>>($"{rawData}");
                source = "REDIS";
            }
            else
            {
                result = await Task.FromResult(dbController.ListLinkAll());
                // serializzp e salvo...
                rawData = JsonConvert.SerializeObject(result);
                await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
            }
            if (result == null)
            {
                result = new List<LinkMenuModel>();
            }
            sw.Stop();
            Log.Debug($"ListLinkAll | tipoLink: * | {source} | {sw.Elapsed.TotalMilliseconds}ms");
            return result;
        }

        /// <summary>
        /// Elenco link JQM dato filtro tipo
        /// </summary>
        /// <param name="tipoLink"></param>
        /// <returns></returns>
        public async Task<List<LinkMenuModel>> ListLinkFilt(string tipoLink)
        {
            string source = "DB";
            Stopwatch sw = new Stopwatch();
            sw.Start();
            List<LinkMenuModel>? result = new List<LinkMenuModel>();
            // cerco in redisConn...
            string currKey = $"{redisBaseKey}:Menu:{tipoLink}";
            RedisValue rawData = await redisDb.StringGetAsync(currKey);
            //if (!string.IsNullOrEmpty($"{rawData}"))
            if (rawData.HasValue)
            {
                result = JsonConvert.DeserializeObject<List<LinkMenuModel>>($"{rawData}");
                source = "REDIS";
            }
            else
            {
                result = await Task.FromResult(dbController.ListLinkFilt(tipoLink));
                // serializzp e salvo...
                rawData = JsonConvert.SerializeObject(result);
                await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
            }
            if (result == null)
            {
                result = new List<LinkMenuModel>();
            }
            sw.Stop();
            Log.Debug($"ListLinkFilt | tipoLink: {tipoLink} | {source} | {sw.Elapsed.TotalMilliseconds}ms");
            return result;
        }

        /// <summary>
        /// Elenco Macchine dato operatore secondo gruppi (macchine/operatore)
        /// </summary>
        /// <param name="MatrOpr"></param>
        /// <returns></returns>
        public async Task<List<MacchineModel>> MacchineByMatrOper(int MatrOpr)
        {
            string source = "DB";
            Stopwatch sw = new Stopwatch();
            sw.Start();
            List<MacchineModel>? result = new List<MacchineModel>();
            // cerco in redisConn...
            string currKey = $"{redisBaseKey}:Macc:{MatrOpr}";
            RedisValue rawData = await redisDb.StringGetAsync(currKey);
            //if (!string.IsNullOrEmpty($"{rawData}"))
            if (rawData.HasValue)
            {
                result = JsonConvert.DeserializeObject<List<MacchineModel>>($"{rawData}");
                source = "REDIS";
            }
            else
            {
                result = await Task.FromResult(dbController.MacchineByMatrOper(MatrOpr));
                // serializzp e salvo...
                rawData = JsonConvert.SerializeObject(result);
                await redisDb.StringSetAsync(currKey, rawData, UltraLongCache);
            }
            if (result == null)
            {
                result = new List<MacchineModel>();
            }
            sw.Stop();
            Log.Debug($"MacchineGetFilt | MatrOpr: {MatrOpr} | {source} | {sw.Elapsed.TotalMilliseconds}ms");
            return result;
        }

        #endregion Public Methods

        #region Protected Methods

        protected override void Dispose(bool disposing)
        {
            if (!_disposed)
            {
                if (disposing)
                {
                    // Free managed resources here
                    dbController.Dispose();
                }

                // Free unmanaged resources here
                _disposed = true;
            }

            // Call base class implementation.
            base.Dispose(disposing);
        }

        #endregion Protected Methods

        #region Private Fields

        private static Logger Log = LogManager.GetCurrentClassLogger();
        private bool _disposed = false;
        private string redisBaseKey = "MP:ALL:Cache";

        #endregion Private Fields

        #region Private Methods

        /// <summary>
        /// Esegue flush memoria redisConn dato pat2Flush
        /// </summary>
        /// <param name="pat2Flush"></param>
        /// <returns></returns>
        private async Task<bool> ExecFlushRedisPattern(RedisValue pat2Flush)
        {
            bool answ = false;
            var masterEndpoint = redisConn.GetEndPoints()
                                            .Where(ep => redisConn.GetServer(ep).IsConnected && !redisConn.GetServer(ep).IsReplica)
                                            .FirstOrDefault();

            // sepattern è "*" elimino intero DB...
            if (masterEndpoint != null && (pat2Flush.Equals(new RedisValue("*")) || pat2Flush == RedisValue.Null))
            {
                redisConn.GetServer(masterEndpoint).FlushDatabase(database: redisDb.Database);
            }
            else
            {
                var server = redisConn.GetServer(masterEndpoint);
                var keys = server.Keys(database: redisDb.Database, pattern: pat2Flush, pageSize: 1000);

                var deleteTasks = new List<Task>();
                foreach (var key in keys)
                {
                    deleteTasks.Add(redisDb.KeyDeleteAsync(key));
                    if (deleteTasks.Count >= 1000)
                    {
                        await Task.WhenAll(deleteTasks);
                        deleteTasks.Clear();
                    }
                }
                if (deleteTasks.Count > 0)
                {
                    await Task.WhenAll(deleteTasks);
                }
            }
            answ = true;
#if false
            var listEndpoints = redisConn.GetEndPoints();
            foreach (var endPoint in listEndpoints)
            {
                //var server = redisConnAdmin.GetServer(listEndpoints[0]);
                var server = redisConn.GetServer(endPoint);
                if (server != null)
                {
                    var keyList = server.Keys(redisDb.Database, pattern);
                    foreach (var item in keyList)
                    {
                        await redisDb.KeyDeleteAsync(item);
                    }
                    answ = true;
                }
            } 
#endif

            return answ;
        }

        #endregion Private Methods
    }
}