728 lines
28 KiB
C#
728 lines
28 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.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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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.ElasticSearch.Core;
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using ASC.ElasticSearch.Service;
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using Autofac;
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using Elasticsearch.Net;
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using Microsoft.Extensions.DependencyInjection;
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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<SearchItem> Notify;
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public BaseIndexerHelper(ICacheNotify<SearchItem> 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 : Wrapper
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{
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Notify.Publish(new SearchItem() { Id = t.IndexName }, CacheNotifyAction.Any);
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}
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}
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public class BaseIndexer<T> : IIndexer where T : Wrapper
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{
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private static readonly object Locker = new object();
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protected internal T Wrapper { get; set; }
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public string IndexName { get { return Wrapper.IndexName; } }
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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 IServiceProvider ServiceProvider { get; }
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public WebstudioDbContext WebstudioDbContext { get; }
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public BaseIndexer(
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FactoryIndexer factoryIndexer,
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Client client,
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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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IServiceProvider serviceProvider)
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{
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Wrapper = factoryIndexer.Builder.Resolve<T>();
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Client = client;
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Log = log;
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TenantManager = tenantManager;
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SearchSettingsHelper = searchSettingsHelper;
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BaseIndexerHelper = baseIndexerHelper;
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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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BeforeIndex(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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CreateIfNotExist(data[0]);
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if (typeof(T).IsSubclassOf(typeof(WrapperWithDoc)))
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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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BeforeIndex(t);
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if (!(t is WrapperWithDoc 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.Default.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.Default.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 WrapperWithDoc 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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foreach (var item in data)
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{
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BeforeIndex(item);
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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.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.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.IndexExists(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.IndexExists(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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void IIndexer.Check()
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{
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var data = ServiceProvider.GetService<T>();
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if (!CheckExist(data)) return;
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var result = false;
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var currentMappings = Client.Instance.GetMapping<T>(r => r.Index(data.IndexName));
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var newMappings = GetMappings(data).Invoke(new CreateIndexDescriptor(data.IndexName));
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var newMappingDict = new Dictionary<string, string>();
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var props = newMappings.Mappings.SelectMany(r => r.Value.Properties).ToList();
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foreach (var prop in props.Where(r => r.Key.Property != null && r.Key.Property.Name != "Document"))
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{
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var propKey = prop.Key.Property.Name.ToLowerCamelCase();
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var key = newMappings.Index.Name + "." + propKey;
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if (prop.Key.Property.CustomAttributes.Any())
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{
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newMappingDict.Add(key, props.Any(r => r.Key == propKey && r.Value is INestedProperty) ? FieldType.Nested.GetStringValue() : prop.Value.Type);
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}
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if (prop.Value is ObjectProperty obj)
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{
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foreach (var objProp in obj.Properties)
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{
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newMappingDict.Add(key + "." + objProp.Key.Property.Name.ToLowerCamelCase(), objProp.Value.Type);
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}
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}
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}
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foreach (var ind in currentMappings.Indices)
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{
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foreach (var prop in ind.Value.Mappings.SelectMany(r => r.Value.Properties).Where(r => r.Key.Name != "document"))
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{
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var key = ind.Key.Name + "." + prop.Key.Name.ToLowerCamelCase();
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if (!newMappingDict.Contains(new KeyValuePair<string, string>(key, prop.Value.Type)))
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{
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result = true;
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break;
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}
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var nested = prop.Value as NestedProperty ?? prop.Value as ObjectProperty;
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if (nested != null)
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{
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if (nested.Properties.Any(nProp => !newMappingDict.Contains(new KeyValuePair<string, string>(key + "." + nProp.Key.Name.ToLowerCamelCase(), nProp.Value.Type))))
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{
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result = true;
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}
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}
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}
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}
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if (result)
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{
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Clear();
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}
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}
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async Task IIndexer.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.DeleteIndex(Wrapper.IndexName);
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BaseIndexerHelper.Clear(Wrapper);
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CreateIfNotExist(ServiceProvider.GetService<T>());
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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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private void BeforeIndex(T data)
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{
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CreateIfNotExist(data);
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if (data is WrapperWithDoc wrapperWithDoc)
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{
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wrapperWithDoc.InitDocument(SearchSettingsHelper.CanSearchByContent<T>(data.TenantId), Log);
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}
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}
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private 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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var columns = data.GetAnalyzers();
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var nestedColumns = data.GetNested();
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if (!columns.Any() && !nestedColumns.Any())
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{
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Client.Instance.CreateIndex(data.IndexName);
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}
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else
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{
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Client.Instance.CreateIndex(data.IndexName, GetMappings(data));
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}
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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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public Func<CreateIndexDescriptor, ICreateIndexRequest> GetMappings(T data)
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{
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var columns = data.GetAnalyzers();
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var nestedColumns = data.GetNested();
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Func<AnalyzersDescriptor, IPromise<IAnalyzers>> analyzers = 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 columns)
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{
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if (c.Value.CharFilter == CharFilter.io) continue;
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var charFilters = new List<string>();
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foreach (var r in Enum.GetValues(typeof(CharFilter)))
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{
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if ((c.Value.CharFilter & (CharFilter)r) == (CharFilter)r) charFilters.Add(r.ToString());
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}
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var c1 = c;
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b.Custom(c1.Key, ca => ca.Tokenizer(c1.Value.Analyzer.ToString()).Filters(c1.Value.Filter.ToString()).CharFilters(charFilters));
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}
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if (data is WrapperWithDoc)
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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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Func<PropertiesDescriptor<T>, IPromise<IProperties>> nestedSelector = p =>
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{
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foreach (var c in nestedColumns)
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{
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var isNested = c.Key.IsGenericType;
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Type prop;
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MethodInfo nested;
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Type typeDescriptor;
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if (isNested)
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{
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prop = c.Key.GenericTypeArguments[0];
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nested = p.GetType().GetMethod("Nested");
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typeDescriptor = typeof(NestedPropertyDescriptor<,>);
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}
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else
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{
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prop = c.Key;
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nested = p.GetType().GetMethod("Object");
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typeDescriptor = typeof(ObjectTypeDescriptor<,>);
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}
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var desc = typeDescriptor.MakeGenericType(typeof(T), prop);
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var methods = desc.GetMethods();
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var name = methods.FirstOrDefault(r => r.Name == "Name" && r.GetParameters().FirstOrDefault(q => q.ParameterType == typeof(PropertyName)) != null);
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var autoMap = methods.FirstOrDefault(r => r.Name == "AutoMap" && r.GetParameters().Length == 2);
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var props = methods.FirstOrDefault(r => r.Name == "Properties");
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if (name == null || autoMap == null || props == null) continue;
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var param = Expression.Parameter(desc, "a");
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var nameFunc = Expression.Call(param, name, Expression.Constant(new PropertyName(c.Value.ToLowerCamelCase()))); //a.Name(value(Nest.PropertyName))
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var autoMapFunc = Expression.Call(param, autoMap, Expression.Constant(null, typeof(IPropertyVisitor)), Expression.Constant(0)); //a.AutoMap()
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var inst = (Wrapper)Activator.CreateInstance(prop);
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var instMethods = prop.GetMethods(BindingFlags.Instance | BindingFlags.NonPublic);
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var getProperties = instMethods.First(r => r.Name == "GetProperties").MakeGenericMethod(prop);
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var propsFunc = Expression.Call(param, props, Expression.Constant(getProperties.Invoke(inst, null))); //a.AutoMap()
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var nestedFunc = Expression.Lambda(Expression.Block(nameFunc, autoMapFunc, propsFunc), param).Compile();
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var fooRef = nested.MakeGenericMethod(prop);
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fooRef.Invoke(p, new object[] { nestedFunc });//p.Nested<Wrapper>(r=> r.Name(c.Value.ToLowerCamelCase()).AutoMap().Properties(getProperties()))
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}
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return p;
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};
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return c =>
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c.Settings(r => r.Analysis(a => a.Analyzers(analyzers).CharFilters(d => d.HtmlStrip(CharFilter.html.ToString()).Mapping(CharFilter.io.ToString(), m => m.Mappings("ё => е", "Ё => Е")))))
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.Mappings(r => r.Map<T>(m => m.AutoMap<T>().Properties(data.GetProperties<T>()).Properties(nestedSelector)));
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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(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 WrapperWithDoc)
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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 WrapperWithDoc)
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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)
|
||
{
|
||
var result = request.Index(IndexName);
|
||
|
||
if (fields.Any())
|
||
{
|
||
result.Script(GetScriptUpdateByQuery(data, fields));
|
||
}
|
||
else
|
||
{
|
||
result.Doc(data);
|
||
}
|
||
|
||
if (immediately)
|
||
{
|
||
result.Refresh(Elasticsearch.Net.Refresh.True);
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
private Func<ScriptDescriptor, IScript> GetScriptUpdateByQuery(T data, params Expression<Func<T, object>>[] fields)
|
||
{
|
||
var source = new StringBuilder();
|
||
var parameters = new Dictionary<string, object>();
|
||
|
||
for (var i = 0; i < fields.Length; i++)
|
||
{
|
||
var func = fields[i].Compile();
|
||
var newValue = func(data);
|
||
string name;
|
||
|
||
var expression = fields[i].Body;
|
||
var isList = expression.Type.IsGenericType && expression.Type.GetGenericTypeDefinition() == typeof(List<>);
|
||
|
||
|
||
var sourceExprText = "";
|
||
|
||
while (!string.IsNullOrEmpty(name = TryGetName(expression, out var member)))
|
||
{
|
||
sourceExprText = "." + name + sourceExprText;
|
||
expression = member.Expression;
|
||
}
|
||
|
||
if (isList)
|
||
{
|
||
UpdateByAction(UpdateAction.Add, (IList)newValue, sourceExprText, parameters, source);
|
||
}
|
||
else
|
||
{
|
||
if (newValue == default(T))
|
||
{
|
||
source.AppendFormat("ctx._source.remove('{0}');", sourceExprText.Substring(1));
|
||
}
|
||
else
|
||
{
|
||
var pkey = "p" + sourceExprText.Replace(".", "");
|
||
source.AppendFormat("ctx._source{0} = params.{1};", sourceExprText, pkey);
|
||
parameters.Add(pkey, newValue);
|
||
}
|
||
}
|
||
}
|
||
|
||
var sourceData = source.ToString();
|
||
|
||
return r => r.Source(sourceData).Params(parameters);
|
||
}
|
||
|
||
private IUpdateRequest<T, T> GetMetaForUpdate(UpdateDescriptor<T, T> request, T data, UpdateAction action, Expression<Func<T, IList>> fields, bool immediately = true)
|
||
{
|
||
var result = request.Index(IndexName).Script(GetScriptForUpdate(data, action, fields));
|
||
|
||
if (immediately)
|
||
{
|
||
result.Refresh(Elasticsearch.Net.Refresh.True);
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
private Func<ScriptDescriptor, IScript> GetScriptForUpdate(T data, UpdateAction action, Expression<Func<T, IList>> fields)
|
||
{
|
||
var source = new StringBuilder();
|
||
|
||
var func = fields.Compile();
|
||
var newValue = func(data);
|
||
string name;
|
||
|
||
var expression = fields.Body;
|
||
|
||
MemberExpression member;
|
||
var sourceExprText = "";
|
||
|
||
while (!string.IsNullOrEmpty(name = TryGetName(expression, out member)))
|
||
{
|
||
sourceExprText = "." + name + sourceExprText;
|
||
expression = member.Expression;
|
||
}
|
||
|
||
var parameters = new Dictionary<string, object>();
|
||
|
||
UpdateByAction(action, newValue, sourceExprText, parameters, source);
|
||
|
||
return r => r.Source(source.ToString()).Params(parameters);
|
||
}
|
||
|
||
private void UpdateByAction(UpdateAction action, IList newValue, string key, Dictionary<string, object> parameters, StringBuilder source)
|
||
{
|
||
var paramKey = "p" + key.Replace(".", "");
|
||
switch (action)
|
||
{
|
||
case UpdateAction.Add:
|
||
for (var i = 0; i < newValue.Count; i++)
|
||
{
|
||
parameters.Add(paramKey + i, newValue[i]);
|
||
source.AppendFormat("if (!ctx._source{0}.contains(params.{1})){{ctx._source{0}.add(params.{1})}}", key, paramKey + i);
|
||
}
|
||
break;
|
||
case UpdateAction.Replace:
|
||
parameters.Add(paramKey, newValue);
|
||
source.AppendFormat("ctx._source{0} = params.{1};", key, paramKey);
|
||
break;
|
||
case UpdateAction.Remove:
|
||
for (var i = 0; i < newValue.Count; i++)
|
||
{
|
||
parameters.Add(paramKey + i, newValue[i]);
|
||
source.AppendFormat("ctx._source{0}.removeIf(item -> item.id == params.{1}.id)", key, paramKey + i);
|
||
}
|
||
break;
|
||
default:
|
||
throw new ArgumentOutOfRangeException("action", action, null);
|
||
}
|
||
}
|
||
|
||
private string TryGetName(Expression expr, out MemberExpression member)
|
||
{
|
||
member = expr as MemberExpression;
|
||
if (member == null)
|
||
{
|
||
var unary = expr as UnaryExpression;
|
||
if (unary != null)
|
||
{
|
||
member = unary.Operand as MemberExpression;
|
||
}
|
||
}
|
||
|
||
return member == null ? "" : member.Member.Name.ToLowerCamelCase();
|
||
}
|
||
|
||
private IDeleteRequest GetMetaForDelete(DeleteDescriptor<T> request, bool immediately = true)
|
||
{
|
||
var result = request.Index(IndexName);
|
||
if (immediately)
|
||
{
|
||
result.Refresh(Elasticsearch.Net.Refresh.True);
|
||
}
|
||
return result;
|
||
}
|
||
|
||
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);
|
||
}
|
||
}
|
||
|
||
static class CamelCaseExtension
|
||
{
|
||
internal static string ToLowerCamelCase(this string str)
|
||
{
|
||
return str.ToLowerInvariant()[0] + str.Substring(1);
|
||
}
|
||
}
|
||
|
||
|
||
public enum UpdateAction
|
||
{
|
||
Add,
|
||
Replace,
|
||
Remove
|
||
}
|
||
} |