107 lines
3.2 KiB
C#
107 lines
3.2 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2020
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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using System;
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using System.Threading;
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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 Microsoft.Extensions.DependencyInjection;
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namespace ASC.Data.Storage.Encryption
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{
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public class EncryptionWorker
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{
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private CancellationTokenSource TokenSource { get; set; }
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private ICache Cache { get; }
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private object Locker { get; }
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private FactoryOperation FactoryOperation { get; }
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public EncryptionWorker(FactoryOperation factoryOperation)
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{
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Cache = AscCache.Memory;
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Locker = new object();
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FactoryOperation = factoryOperation;
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}
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public void Start(EncryptionSettingsProto encryptionSettings)
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{
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EncryptionOperation encryptionOperation;
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lock (Locker)
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{
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if (Cache.Get<EncryptionOperation>(GetCacheKey()) != null) return;
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TokenSource = new CancellationTokenSource();
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encryptionOperation = FactoryOperation.CreateOperation(encryptionSettings);
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Cache.Insert(GetCacheKey(), encryptionOperation, DateTime.MaxValue);
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}
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var task = new Task(encryptionOperation.RunJob, TokenSource.Token, TaskCreationOptions.LongRunning);
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task.ConfigureAwait(false)
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.GetAwaiter()
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.OnCompleted(() =>
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{
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lock (Locker)
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{
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Cache.Remove(GetCacheKey());
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}
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});
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task.Start();
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}
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public void Stop()
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{
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TokenSource.Cancel();
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}
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public string GetCacheKey()
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{
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return typeof(EncryptionOperation).FullName;
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}
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}
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public class FactoryOperation
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{
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private IServiceProvider ServiceProvider { get; set; }
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public FactoryOperation(IServiceProvider serviceProvider)
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{
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ServiceProvider = serviceProvider;
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}
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public EncryptionOperation CreateOperation(EncryptionSettingsProto encryptionSettings)
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{
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var item = ServiceProvider.GetService<EncryptionOperation>();
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item.Init(encryptionSettings);
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return item;
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}
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}
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public static class EncryptionWorkerExtension
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{
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public static DIHelper AddEncryptionWorkerService(this DIHelper services)
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{
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services.TryAddSingleton<EncryptionWorker>();
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services.TryAddSingleton<FactoryOperation>();
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return services.AddEncryptionOperationService();
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}
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}
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}
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