656 lines
24 KiB
C#
656 lines
24 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.Collections;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Text;
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using System.Threading.Tasks;
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using ASC.Common;
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using ASC.Common.Caching;
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using ASC.Common.Logging;
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using ASC.Core;
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using ASC.Core.Common.EF;
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using ASC.Core.Common.EF.Context;
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using ASC.Core.Common.EF.Model;
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using ASC.ElasticSearch.Core;
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using ASC.ElasticSearch.Service;
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using Autofac;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Options;
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using Nest;
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namespace ASC.ElasticSearch
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{
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public class BaseIndexerHelper
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{
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public ConcurrentDictionary<string, bool> IsExist { get; set; }
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private readonly ICacheNotify<ClearIndexAction> Notify;
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public BaseIndexerHelper(ICacheNotify<ClearIndexAction> cacheNotify)
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{
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IsExist = new ConcurrentDictionary<string, bool>();
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Notify = cacheNotify;
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Notify.Subscribe((a) =>
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{
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IsExist.AddOrUpdate(a.Id, false, (q, w) => false);
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}, CacheNotifyAction.Any);
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}
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public void Clear<T>(T t) where T : class, ISearchItem
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{
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Notify.Publish(new ClearIndexAction() { Id = t.IndexName }, CacheNotifyAction.Any);
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}
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}
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public class BaseIndexer<T> where T : class, ISearchItem
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{
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private static readonly object Locker = new object();
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protected internal T Wrapper { get { return ServiceProvider.GetService<T>(); } }
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public string IndexName { get { return Wrapper.IndexName; } }
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private const int QueryLimit = 1000;
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public bool IsExist { get; set; }
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public Client Client { get; }
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public ILog Log { get; }
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public TenantManager TenantManager { get; }
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public SearchSettingsHelper SearchSettingsHelper { get; }
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public BaseIndexerHelper BaseIndexerHelper { get; }
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public Settings Settings { get; }
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public IServiceProvider ServiceProvider { get; }
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public WebstudioDbContext WebstudioDbContext { get; }
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public BaseIndexer(
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Client client,
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IOptionsMonitor<ILog> log,
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DbContextManager<WebstudioDbContext> dbContextManager,
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TenantManager tenantManager,
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SearchSettingsHelper searchSettingsHelper,
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BaseIndexerHelper baseIndexerHelper,
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Settings settings,
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IServiceProvider serviceProvider)
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{
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Client = client;
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Log = log.CurrentValue;
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TenantManager = tenantManager;
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SearchSettingsHelper = searchSettingsHelper;
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BaseIndexerHelper = baseIndexerHelper;
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Settings = settings;
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ServiceProvider = serviceProvider;
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WebstudioDbContext = dbContextManager.Value;
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}
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internal void Index(T data, bool immediately = true)
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{
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CreateIfNotExist(data);
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Client.Instance.Index(data, idx => GetMeta(idx, data, immediately));
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}
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internal void Index(List<T> data, bool immediately = true)
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{
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if (!data.Any()) return;
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CreateIfNotExist(data[0]);
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if (data[0] is ISearchItemDocument)
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{
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var currentLength = 0L;
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var portion = new List<T>();
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var portionStart = 0;
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for (var i = 0; i < data.Count; i++)
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{
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var t = data[i];
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var runBulk = i == data.Count - 1;
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if (!(t is ISearchItemDocument wwd) || wwd.Document == null || string.IsNullOrEmpty(wwd.Document.Data))
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{
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portion.Add(t);
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}
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else
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{
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var dLength = wwd.Document.Data.Length;
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if (dLength >= Settings.MemoryLimit)
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{
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try
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{
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Index(t, immediately);
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}
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catch (Exception e)
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{
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Log.Error(e);
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}
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wwd.Document.Data = null;
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wwd.Document = null;
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GC.Collect();
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continue;
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}
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if (currentLength + dLength < Settings.MemoryLimit)
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{
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portion.Add(t);
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currentLength += dLength;
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}
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else
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{
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runBulk = true;
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i--;
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}
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}
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if (runBulk)
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{
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var portion1 = portion;
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Client.Instance.Bulk(r => r.IndexMany(portion1, GetMeta));
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for (var j = portionStart; j < i; j++)
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{
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if (data[j] is ISearchItemDocument doc && doc.Document != null)
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{
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doc.Document.Data = null;
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doc.Document = null;
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}
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}
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portionStart = i;
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portion = new List<T>();
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currentLength = 0L;
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GC.Collect();
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}
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}
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}
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else
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{
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Client.Instance.Bulk(r => r.IndexMany(data, GetMeta));
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}
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}
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internal void Update(T data, bool immediately = true, params Expression<Func<T, object>>[] fields)
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{
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CreateIfNotExist(data);
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Client.Instance.Update(DocumentPath<T>.Id(data), r => GetMetaForUpdate(r, data, immediately, fields));
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}
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internal void Update(T data, UpdateAction action, Expression<Func<T, IList>> fields, bool immediately = true)
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{
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CreateIfNotExist(data);
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Client.Instance.Update(DocumentPath<T>.Id(data), r => GetMetaForUpdate(r, data, action, fields, immediately));
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}
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internal void Update(T data, Expression<Func<Selector<T>, Selector<T>>> expression, int tenantId, bool immediately = true, params Expression<Func<T, object>>[] fields)
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{
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CreateIfNotExist(data);
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Client.Instance.UpdateByQuery(GetDescriptorForUpdate(data, expression, tenantId, immediately, fields));
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}
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internal void Update(T data, Expression<Func<Selector<T>, Selector<T>>> expression, int tenantId, UpdateAction action, Expression<Func<T, IList>> fields, bool immediately = true)
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{
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CreateIfNotExist(data);
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Client.Instance.UpdateByQuery(GetDescriptorForUpdate(data, expression, tenantId, action, fields, immediately));
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}
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internal void Delete(T data, bool immediately = true)
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{
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Client.Instance.Delete<T>(data, r => GetMetaForDelete(r, immediately));
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}
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internal void Delete(Expression<Func<Selector<T>, Selector<T>>> expression, int tenantId, bool immediately = true)
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{
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Client.Instance.DeleteByQuery(GetDescriptorForDelete(expression, tenantId, immediately));
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}
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public void Flush()
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{
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Client.Instance.Indices.Flush(new FlushRequest(IndexName));
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}
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public void Refresh()
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{
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Client.Instance.Indices.Refresh(new RefreshRequest(IndexName));
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}
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internal bool CheckExist(T data)
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{
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try
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{
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var isExist = BaseIndexerHelper.IsExist.GetOrAdd(data.IndexName, (k) => Client.Instance.Indices.Exists(k).Exists);
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if (isExist) return true;
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lock (Locker)
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{
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if (isExist) return true;
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isExist = Client.Instance.Indices.Exists(data.IndexName).Exists;
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_ = BaseIndexerHelper.IsExist.TryUpdate(data.IndexName, IsExist, false);
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if (isExist) return true;
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}
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}
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catch (Exception e)
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{
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Log.Error("CheckExist " + data.IndexName, e);
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}
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return false;
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}
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public async Task ReIndex()
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{
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Clear();
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//((IIndexer) this).IndexAll();
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}
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private void Clear()
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{
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var index = WebstudioDbContext.WebstudioIndex.Where(r => r.IndexName == Wrapper.IndexName).FirstOrDefault();
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if (index != null)
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{
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WebstudioDbContext.WebstudioIndex.Remove(index);
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}
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WebstudioDbContext.SaveChanges();
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Log.DebugFormat("Delete {0}", Wrapper.IndexName);
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Client.Instance.Indices.Delete(Wrapper.IndexName);
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BaseIndexerHelper.Clear(Wrapper);
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CreateIfNotExist(Wrapper);
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}
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internal IReadOnlyCollection<T> Select(Expression<Func<Selector<T>, Selector<T>>> expression, bool onlyId = false)
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{
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var func = expression.Compile();
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var selector = ServiceProvider.GetService<Selector<T>>();
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var descriptor = func(selector).Where(r => r.TenantId, TenantManager.GetCurrentTenant().TenantId);
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return Client.Instance.Search(descriptor.GetDescriptor(this, onlyId)).Documents;
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}
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internal IReadOnlyCollection<T> Select(Expression<Func<Selector<T>, Selector<T>>> expression, bool onlyId, out long total)
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{
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var func = expression.Compile();
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var selector = ServiceProvider.GetService<Selector<T>>();
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var descriptor = func(selector).Where(r => r.TenantId, TenantManager.GetCurrentTenant().TenantId);
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var result = Client.Instance.Search(descriptor.GetDescriptor(this, onlyId));
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total = result.Total;
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return result.Documents;
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}
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public void CreateIfNotExist(T data)
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{
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try
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{
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if (CheckExist(data)) return;
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lock (Locker)
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{
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IPromise<IAnalyzers> analyzers(AnalyzersDescriptor b)
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{
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foreach (var c in Enum.GetNames(typeof(Analyzer)))
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{
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var c1 = c;
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b.Custom(c1 + "custom", ca => ca.Tokenizer(c1).Filters(Filter.lowercase.ToString()).CharFilters(CharFilter.io.ToString()));
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}
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foreach (var c in Enum.GetNames(typeof(CharFilter)))
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{
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if (c == CharFilter.io.ToString()) continue;
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var charFilters = new List<string>() { CharFilter.io.ToString(), c };
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var c1 = c;
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b.Custom(c1 + "custom", ca => ca.Tokenizer(Analyzer.whitespace.ToString()).Filters(Filter.lowercase.ToString()).CharFilters(charFilters));
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}
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if (data is ISearchItemDocument)
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{
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b.Custom("document", ca => ca.Tokenizer(Analyzer.whitespace.ToString()).Filters(Filter.lowercase.ToString()).CharFilters(CharFilter.io.ToString()));
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}
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return b;
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}
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var createIndexResponse = Client.Instance.Indices.Create(data.IndexName,
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c =>
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c.Map<T>(m => m.AutoMap())
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.Settings(r => r.Analysis(a =>
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a.Analyzers(analyzers)
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.CharFilters(d => d.HtmlStrip(CharFilter.html.ToString())
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.Mapping(CharFilter.io.ToString(), m => m.Mappings("ё => е", "Ё => Е"))))));
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IsExist = true;
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}
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}
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catch (Exception e)
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{
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Log.Error("CreateIfNotExist", e);
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}
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}
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private IIndexRequest<T> GetMeta(IndexDescriptor<T> request, T data, bool immediately = true)
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{
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var result = request.Index(data.IndexName).Id(data.Id);
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if (immediately)
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{
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result.Refresh(Elasticsearch.Net.Refresh.True);
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}
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if (data is ISearchItemDocument)
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{
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result.Pipeline("attachments");
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}
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return result;
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}
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private IBulkIndexOperation<T> GetMeta(BulkIndexDescriptor<T> desc, T data)
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{
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var result = desc.Index(IndexName).Id(data.Id);
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if (data is ISearchItemDocument)
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{
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result.Pipeline("attachments");
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}
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return result;
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}
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private IUpdateRequest<T, T> GetMetaForUpdate(UpdateDescriptor<T, T> request, T data, bool immediately = true, params Expression<Func<T, object>>[] fields)
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{
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var result = request.Index(IndexName);
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if (fields.Any())
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{
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result.Script(GetScriptUpdateByQuery(data, fields));
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}
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else
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{
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result.Doc(data);
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}
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if (immediately)
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{
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result.Refresh(Elasticsearch.Net.Refresh.True);
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}
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return result;
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}
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private Func<ScriptDescriptor, IScript> GetScriptUpdateByQuery(T data, params Expression<Func<T, object>>[] fields)
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{
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var source = new StringBuilder();
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var parameters = new Dictionary<string, object>();
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for (var i = 0; i < fields.Length; i++)
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{
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var func = fields[i].Compile();
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var newValue = func(data);
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string name;
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var expression = fields[i].Body;
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var isList = expression.Type.IsGenericType && expression.Type.GetGenericTypeDefinition() == typeof(List<>);
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var sourceExprText = "";
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while (!string.IsNullOrEmpty(name = TryGetName(expression, out var member)))
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{
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sourceExprText = "." + name + sourceExprText;
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expression = member.Expression;
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}
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if (isList)
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{
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UpdateByAction(UpdateAction.Add, (IList)newValue, sourceExprText, parameters, source);
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}
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else
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{
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if (newValue == default(T))
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{
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source.AppendFormat("ctx._source.remove('{0}');", sourceExprText.Substring(1));
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}
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else
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{
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var pkey = "p" + sourceExprText.Replace(".", "");
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source.AppendFormat("ctx._source{0} = params.{1};", sourceExprText, pkey);
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parameters.Add(pkey, newValue);
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}
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}
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}
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var sourceData = source.ToString();
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return r => r.Source(sourceData).Params(parameters);
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}
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private IUpdateRequest<T, T> GetMetaForUpdate(UpdateDescriptor<T, T> request, T data, UpdateAction action, Expression<Func<T, IList>> fields, bool immediately = true)
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{
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var result = request.Index(IndexName).Script(GetScriptForUpdate(data, action, fields));
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if (immediately)
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{
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result.Refresh(Elasticsearch.Net.Refresh.True);
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}
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return result;
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}
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private Func<ScriptDescriptor, IScript> GetScriptForUpdate(T data, UpdateAction action, Expression<Func<T, IList>> fields)
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{
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var source = new StringBuilder();
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var func = fields.Compile();
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var newValue = func(data);
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string name;
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var expression = fields.Body;
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MemberExpression member;
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var sourceExprText = "";
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while (!string.IsNullOrEmpty(name = TryGetName(expression, out member)))
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{
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sourceExprText = "." + name + sourceExprText;
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expression = member.Expression;
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}
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var parameters = new Dictionary<string, object>();
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UpdateByAction(action, newValue, sourceExprText, parameters, source);
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return r => r.Source(source.ToString()).Params(parameters);
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}
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private void UpdateByAction(UpdateAction action, IList newValue, string key, Dictionary<string, object> parameters, StringBuilder source)
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{
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var paramKey = "p" + key.Replace(".", "");
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switch (action)
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{
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case UpdateAction.Add:
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for (var i = 0; i < newValue.Count; i++)
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{
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parameters.Add(paramKey + i, newValue[i]);
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source.AppendFormat("if (!ctx._source{0}.contains(params.{1})){{ctx._source{0}.add(params.{1})}}", key, paramKey + i);
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}
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break;
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case UpdateAction.Replace:
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parameters.Add(paramKey, newValue);
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source.AppendFormat("ctx._source{0} = params.{1};", key, paramKey);
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break;
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case UpdateAction.Remove:
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for (var i = 0; i < newValue.Count; i++)
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{
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parameters.Add(paramKey + i, newValue[i]);
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source.AppendFormat("ctx._source{0}.removeIf(item -> item.id == params.{1}.id)", key, paramKey + i);
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}
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break;
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default:
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throw new ArgumentOutOfRangeException("action", action, null);
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}
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}
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private string TryGetName(Expression expr, out MemberExpression member)
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{
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member = expr as MemberExpression;
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if (member == null)
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{
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var unary = expr as UnaryExpression;
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if (unary != null)
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{
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member = unary.Operand as MemberExpression;
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}
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}
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return member == null ? "" : member.Member.Name.ToLowerCamelCase();
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}
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private IDeleteRequest GetMetaForDelete(DeleteDescriptor<T> request, bool immediately = true)
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{
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var result = request.Index(IndexName);
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if (immediately)
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{
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result.Refresh(Elasticsearch.Net.Refresh.True);
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}
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return result;
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}
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|
||
private Func<DeleteByQueryDescriptor<T>, IDeleteByQueryRequest> GetDescriptorForDelete(Expression<Func<Selector<T>, Selector<T>>> expression, int tenantId, bool immediately = true)
|
||
{
|
||
var func = expression.Compile();
|
||
var selector = ServiceProvider.GetService<Selector<T>>();
|
||
var descriptor = func(selector).Where(r => r.TenantId, tenantId);
|
||
return descriptor.GetDescriptorForDelete(this, immediately);
|
||
}
|
||
|
||
private Func<UpdateByQueryDescriptor<T>, IUpdateByQueryRequest> GetDescriptorForUpdate(T data, Expression<Func<Selector<T>, Selector<T>>> expression, int tenantId, bool immediately = true, params Expression<Func<T, object>>[] fields)
|
||
{
|
||
var func = expression.Compile();
|
||
var selector = ServiceProvider.GetService<Selector<T>>();
|
||
var descriptor = func(selector).Where(r => r.TenantId, tenantId);
|
||
return descriptor.GetDescriptorForUpdate(this, GetScriptUpdateByQuery(data, fields), immediately);
|
||
}
|
||
|
||
private Func<UpdateByQueryDescriptor<T>, IUpdateByQueryRequest> GetDescriptorForUpdate(T data, Expression<Func<Selector<T>, Selector<T>>> expression, int tenantId, UpdateAction action, Expression<Func<T, IList>> fields, bool immediately = true)
|
||
{
|
||
var func = expression.Compile();
|
||
var selector = ServiceProvider.GetService<Selector<T>>();
|
||
var descriptor = func(selector).Where(r => r.TenantId, tenantId);
|
||
return descriptor.GetDescriptorForUpdate(this, GetScriptForUpdate(data, action, fields), immediately);
|
||
}
|
||
|
||
public IEnumerable<List<T>> IndexAll(Func<DateTime, (int, int, int)> getCount, Func<long, long, DateTime, List<T>> getData)
|
||
{
|
||
var lastIndexed = WebstudioDbContext.WebstudioIndex
|
||
.Where(r => r.IndexName == Wrapper.IndexName)
|
||
.Select(r => r.LastModified)
|
||
.FirstOrDefault();
|
||
|
||
var (count, max, min) = getCount(lastIndexed);
|
||
Log.Debug($"Index: {IndexName}, Count {count}, Max: {max}, Min: {min}");
|
||
|
||
if (count != 0)
|
||
{
|
||
var step = (max - min + 1) / count;
|
||
|
||
if (step == 0)
|
||
{
|
||
step = 1;
|
||
}
|
||
|
||
if (step < QueryLimit)
|
||
{
|
||
step = QueryLimit;
|
||
}
|
||
|
||
for (var i = min; i <= max; i += step)
|
||
{
|
||
yield return getData(i, step, lastIndexed);
|
||
//FactoryIndexer<T>.Index(data.Cast<T>().ToList());
|
||
}
|
||
}
|
||
|
||
|
||
WebstudioDbContext.AddOrUpdate(r => r.WebstudioIndex, new DbWebstudioIndex()
|
||
{
|
||
IndexName = Wrapper.IndexName,
|
||
LastModified = DateTime.UtcNow
|
||
});
|
||
|
||
WebstudioDbContext.SaveChanges();
|
||
|
||
Log.Debug($"index completed {Wrapper.IndexName}");
|
||
}
|
||
}
|
||
|
||
static class CamelCaseExtension
|
||
{
|
||
internal static string ToLowerCamelCase(this string str)
|
||
{
|
||
return str.ToLowerInvariant()[0] + str.Substring(1);
|
||
}
|
||
}
|
||
|
||
|
||
public enum UpdateAction
|
||
{
|
||
Add,
|
||
Replace,
|
||
Remove
|
||
}
|
||
|
||
public static class BaseIndexerExtention
|
||
{
|
||
public static DIHelper AddBaseIndexerHelperService(this DIHelper services)
|
||
{
|
||
services.TryAddSingleton<BaseIndexerHelper>();
|
||
return services.AddKafkaService();
|
||
}
|
||
|
||
public static DIHelper AddBaseIndexerService<T>(this DIHelper services) where T : class, ISearchItem
|
||
{
|
||
if (services.TryAddScoped<BaseIndexer<T>>())
|
||
{
|
||
return services
|
||
.AddFactoryIndexerService()
|
||
.AddClientService()
|
||
.AddWebstudioDbContextService()
|
||
.AddTenantManagerService()
|
||
.AddSearchSettingsHelperService()
|
||
.AddBaseIndexerHelperService()
|
||
;
|
||
}
|
||
|
||
return services;
|
||
}
|
||
}
|
||
} |