260 lines
9.4 KiB
C#
260 lines
9.4 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.Generic;
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using System.Linq;
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using ASC.Common;
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using ASC.Common.Caching;
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using ASC.Core.Common.EF;
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using ASC.Core.Data;
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using ASC.Core.Tenants;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Options;
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namespace ASC.Core.Caching
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{
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class QuotaServiceCache
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{
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internal const string KEY_QUOTA = "quota";
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internal const string KEY_QUOTA_ROWS = "quotarows";
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internal TrustInterval Interval { get; set; }
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internal ICache Cache { get; }
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internal ICacheNotify<QuotaCacheItem> CacheNotify { get; }
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internal bool QuotaCacheEnabled { get; }
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public QuotaServiceCache(IConfiguration Configuration, ICacheNotify<QuotaCacheItem> cacheNotify)
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{
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if (Configuration["core:enable-quota-cache"] == null)
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{
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QuotaCacheEnabled = true;
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}
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else
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{
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QuotaCacheEnabled = !bool.TryParse(Configuration["core:enable-quota-cache"], out var enabled) || enabled;
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}
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CacheNotify = cacheNotify;
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Cache = AscCache.Memory;
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Interval = new TrustInterval();
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cacheNotify.Subscribe((i) =>
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{
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if (i.Key == KEY_QUOTA_ROWS)
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{
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Interval.Expire();
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}
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else if (i.Key == KEY_QUOTA)
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{
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Cache.Remove(KEY_QUOTA);
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}
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}, CacheNotifyAction.Any);
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}
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}
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class ConfigureCachedQuotaService : IConfigureNamedOptions<CachedQuotaService>
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{
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public IOptionsSnapshot<DbQuotaService> Service { get; }
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public QuotaServiceCache QuotaServiceCache { get; }
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public ConfigureCachedQuotaService(
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IOptionsSnapshot<DbQuotaService> service,
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QuotaServiceCache quotaServiceCache)
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{
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Service = service;
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QuotaServiceCache = quotaServiceCache;
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}
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public void Configure(string name, CachedQuotaService options)
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{
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Configure(options);
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options.Service = Service.Get(name);
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}
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public void Configure(CachedQuotaService options)
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{
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options.Service = Service.Value;
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options.QuotaServiceCache = QuotaServiceCache;
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options.Cache = QuotaServiceCache.Cache;
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options.CacheNotify = QuotaServiceCache.CacheNotify;
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}
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}
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class CachedQuotaService : IQuotaService
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{
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internal IQuotaService Service { get; set; }
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internal ICache Cache { get; set; }
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internal ICacheNotify<QuotaCacheItem> CacheNotify { get; set; }
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internal TrustInterval Interval { get; set; }
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internal TimeSpan CacheExpiration { get; set; }
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internal QuotaServiceCache QuotaServiceCache { get; set; }
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public CachedQuotaService()
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{
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Interval = new TrustInterval();
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CacheExpiration = TimeSpan.FromMinutes(10);
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}
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public CachedQuotaService(DbQuotaService service, QuotaServiceCache quotaServiceCache) : this()
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{
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Service = service ?? throw new ArgumentNullException("service");
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QuotaServiceCache = quotaServiceCache;
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Cache = quotaServiceCache.Cache;
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CacheNotify = quotaServiceCache.CacheNotify;
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}
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public IEnumerable<TenantQuota> GetTenantQuotas()
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{
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var quotas = Cache.Get<IEnumerable<TenantQuota>>(QuotaServiceCache.KEY_QUOTA);
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if (quotas == null)
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{
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quotas = Service.GetTenantQuotas();
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if (QuotaServiceCache.QuotaCacheEnabled)
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{
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Cache.Insert(QuotaServiceCache.KEY_QUOTA, quotas, DateTime.UtcNow.Add(CacheExpiration));
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}
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}
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return quotas;
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}
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public TenantQuota GetTenantQuota(int tenant)
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{
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return GetTenantQuotas().SingleOrDefault(q => q.Id == tenant);
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}
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public TenantQuota SaveTenantQuota(TenantQuota quota)
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{
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var q = Service.SaveTenantQuota(quota);
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CacheNotify.Publish(new QuotaCacheItem { Key = QuotaServiceCache.KEY_QUOTA }, CacheNotifyAction.Any);
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return q;
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}
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public void RemoveTenantQuota(int tenant)
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{
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throw new NotImplementedException();
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}
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public void SetTenantQuotaRow(TenantQuotaRow row, bool exchange)
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{
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Service.SetTenantQuotaRow(row, exchange);
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CacheNotify.Publish(new QuotaCacheItem { Key = QuotaServiceCache.KEY_QUOTA_ROWS }, CacheNotifyAction.Any);
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}
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public IEnumerable<TenantQuotaRow> FindTenantQuotaRows(TenantQuotaRowQuery query)
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{
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if (query == null) throw new ArgumentNullException("query");
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var rows = Cache.Get<Dictionary<string, List<TenantQuotaRow>>>(QuotaServiceCache.KEY_QUOTA_ROWS);
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if (rows == null || Interval.Expired)
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{
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var date = rows != null ? Interval.StartTime : DateTime.MinValue;
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Interval.Start(CacheExpiration);
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var changes = Service.FindTenantQuotaRows(new TenantQuotaRowQuery(Tenant.DEFAULT_TENANT).WithLastModified(date))
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.GroupBy(r => r.Tenant.ToString())
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.ToDictionary(g => g.Key, g => g.ToList());
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// merge changes from db to cache
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if (rows == null)
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{
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rows = changes;
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}
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else
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{
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lock (rows)
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{
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foreach (var p in changes)
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{
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if (rows.ContainsKey(p.Key))
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{
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var cachedRows = rows[p.Key];
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foreach (var r in p.Value)
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{
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cachedRows.RemoveAll(c => c.Path == r.Path);
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cachedRows.Add(r);
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}
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}
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else
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{
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rows[p.Key] = p.Value;
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}
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}
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}
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}
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if (QuotaServiceCache.QuotaCacheEnabled)
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{
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Cache.Insert(QuotaServiceCache.KEY_QUOTA_ROWS, rows, DateTime.UtcNow.Add(CacheExpiration));
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}
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}
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var quotaRows = Cache.Get<Dictionary<string, List<TenantQuotaRow>>>(QuotaServiceCache.KEY_QUOTA_ROWS);
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if (quotaRows == null)
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{
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return Enumerable.Empty<TenantQuotaRow>();
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}
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lock (quotaRows)
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{
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var list = quotaRows.ContainsKey(query.Tenant.ToString()) ?
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quotaRows[query.Tenant.ToString()] :
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new List<TenantQuotaRow>();
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if (query != null && !string.IsNullOrEmpty(query.Path))
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{
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return list.Where(r => query.Path == r.Path);
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}
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return list.ToList();
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}
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}
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}
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public static class QuotaConfigExtension
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{
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public static DIHelper AddQuotaService(this DIHelper services)
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{
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services.AddCoreDbContextService();
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services.TryAddSingleton(typeof(ICacheNotify<>), typeof(KafkaCache<>));
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services.TryAddSingleton<QuotaServiceCache>();
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services.TryAddScoped<DbQuotaService>();
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services.TryAddScoped<IQuotaService, CachedQuotaService>();
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services.TryAddScoped<IConfigureOptions<DbQuotaService>, ConfigureDbQuotaService>();
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services.TryAddScoped<IConfigureOptions<CachedQuotaService>, ConfigureCachedQuotaService>();
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return services;
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}
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}
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}
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