436 lines
15 KiB
C#
436 lines
15 KiB
C#
using System.Collections.Generic;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Serialization;
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using System;
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using System.Data;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.Persistence
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{
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public class SqliteUserDataRepository : IUserDataRepository
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{
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private readonly ILogger _logger;
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private readonly SemaphoreSlim _writeLock = new SemaphoreSlim(1, 1);
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private IDbConnection _connection;
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/// <summary>
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/// Gets the name of the repository
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/// </summary>
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/// <value>The name.</value>
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public string Name
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{
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get
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{
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return "SQLite";
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}
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}
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/// <summary>
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/// The _app paths
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/// </summary>
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private readonly IApplicationPaths _appPaths;
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/// <summary>
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/// Initializes a new instance of the <see cref="SqliteUserDataRepository" /> class.
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/// </summary>
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/// <param name="appPaths">The app paths.</param>
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/// <param name="logManager">The log manager.</param>
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/// <exception cref="System.ArgumentNullException">jsonSerializer
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/// or
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/// appPaths</exception>
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public SqliteUserDataRepository(IApplicationPaths appPaths, ILogManager logManager)
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{
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if (appPaths == null)
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{
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throw new ArgumentNullException("appPaths");
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}
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_appPaths = appPaths;
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_logger = logManager.GetLogger(GetType().Name);
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}
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private SqliteShrinkMemoryTimer _shrinkMemoryTimer;
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/// <summary>
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/// Opens the connection to the database
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/// </summary>
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/// <returns>Task.</returns>
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public async Task Initialize()
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{
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var dbFile = Path.Combine(_appPaths.DataPath, "userdata_v2.db");
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_connection = await SqliteExtensions.ConnectToDb(dbFile, _logger).ConfigureAwait(false);
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string[] queries = {
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"create table if not exists userdata (key nvarchar, userId GUID, rating float null, played bit, playCount int, isFavorite bit, playbackPositionTicks bigint, lastPlayedDate datetime null)",
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"create unique index if not exists userdataindex on userdata (key, userId)",
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//pragmas
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"pragma temp_store = memory",
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"pragma shrink_memory"
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};
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_connection.RunQueries(queries, _logger);
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_shrinkMemoryTimer = new SqliteShrinkMemoryTimer(_connection, _writeLock, _logger);
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}
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/// <summary>
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/// Saves the user data.
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/// </summary>
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/// <param name="userId">The user id.</param>
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/// <param name="key">The key.</param>
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/// <param name="userData">The user data.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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/// <exception cref="System.ArgumentNullException">userData
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/// or
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/// cancellationToken
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/// or
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/// userId
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/// or
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/// userDataId</exception>
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public Task SaveUserData(Guid userId, string key, UserItemData userData, CancellationToken cancellationToken)
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{
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if (userData == null)
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{
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throw new ArgumentNullException("userData");
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}
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if (userId == Guid.Empty)
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{
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throw new ArgumentNullException("userId");
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}
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if (string.IsNullOrEmpty(key))
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{
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throw new ArgumentNullException("key");
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}
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return PersistUserData(userId, key, userData, cancellationToken);
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}
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public Task SaveAllUserData(Guid userId, IEnumerable<UserItemData> userData, CancellationToken cancellationToken)
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{
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if (userData == null)
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{
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throw new ArgumentNullException("userData");
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}
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if (userId == Guid.Empty)
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{
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throw new ArgumentNullException("userId");
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}
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return PersistAllUserData(userId, userData, cancellationToken);
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}
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/// <summary>
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/// Persists the user data.
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/// </summary>
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/// <param name="userId">The user id.</param>
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/// <param name="key">The key.</param>
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/// <param name="userData">The user data.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task.</returns>
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public async Task PersistUserData(Guid userId, string key, UserItemData userData, CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
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IDbTransaction transaction = null;
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try
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{
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transaction = _connection.BeginTransaction();
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = "replace into userdata (key, userId, rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate) values (@key, @userId, @rating,@played,@playCount,@isFavorite,@playbackPositionTicks,@lastPlayedDate)";
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cmd.Parameters.Add(cmd, "@key", DbType.String).Value = key;
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cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
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cmd.Parameters.Add(cmd, "@rating", DbType.Double).Value = userData.Rating;
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cmd.Parameters.Add(cmd, "@played", DbType.Boolean).Value = userData.Played;
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cmd.Parameters.Add(cmd, "@playCount", DbType.Int32).Value = userData.PlayCount;
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cmd.Parameters.Add(cmd, "@isFavorite", DbType.Boolean).Value = userData.IsFavorite;
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cmd.Parameters.Add(cmd, "@playbackPositionTicks", DbType.Int64).Value = userData.PlaybackPositionTicks;
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cmd.Parameters.Add(cmd, "@lastPlayedDate", DbType.DateTime).Value = userData.LastPlayedDate;
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cmd.Transaction = transaction;
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cmd.ExecuteNonQuery();
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}
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transaction.Commit();
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}
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catch (OperationCanceledException)
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{
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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catch (Exception e)
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{
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_logger.ErrorException("Failed to save user data:", e);
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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finally
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{
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if (transaction != null)
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{
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transaction.Dispose();
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}
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_writeLock.Release();
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}
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}
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/// <summary>
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/// Persist all user data for the specified user
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/// </summary>
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/// <param name="userId"></param>
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/// <param name="userData"></param>
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/// <param name="cancellationToken"></param>
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/// <returns></returns>
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private async Task PersistAllUserData(Guid userId, IEnumerable<UserItemData> userData, CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
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IDbTransaction transaction = null;
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try
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{
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transaction = _connection.BeginTransaction();
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foreach (var userItemData in userData)
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{
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = "replace into userdata (key, userId, rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate) values (@key, @userId, @rating,@played,@playCount,@isFavorite,@playbackPositionTicks,@lastPlayedDate)";
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cmd.Parameters.Add(cmd, "@key", DbType.String).Value = userItemData.Key;
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cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
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cmd.Parameters.Add(cmd, "@rating", DbType.Double).Value = userItemData.Rating;
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cmd.Parameters.Add(cmd, "@played", DbType.Boolean).Value = userItemData.Played;
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cmd.Parameters.Add(cmd, "@playCount", DbType.Int32).Value = userItemData.PlayCount;
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cmd.Parameters.Add(cmd, "@isFavorite", DbType.Boolean).Value = userItemData.IsFavorite;
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cmd.Parameters.Add(cmd, "@playbackPositionTicks", DbType.Int64).Value = userItemData.PlaybackPositionTicks;
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cmd.Parameters.Add(cmd, "@lastPlayedDate", DbType.DateTime).Value = userItemData.LastPlayedDate;
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cmd.Transaction = transaction;
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cmd.ExecuteNonQuery();
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}
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cancellationToken.ThrowIfCancellationRequested();
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}
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transaction.Commit();
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}
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catch (OperationCanceledException)
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{
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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catch (Exception e)
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{
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_logger.ErrorException("Failed to save user data:", e);
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if (transaction != null)
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{
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transaction.Rollback();
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}
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throw;
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}
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finally
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{
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if (transaction != null)
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{
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transaction.Dispose();
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}
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_writeLock.Release();
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}
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}
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/// <summary>
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/// Gets the user data.
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/// </summary>
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/// <param name="userId">The user id.</param>
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/// <param name="key">The key.</param>
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/// <returns>Task{UserItemData}.</returns>
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/// <exception cref="System.ArgumentNullException">
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/// userId
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/// or
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/// key
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/// </exception>
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public UserItemData GetUserData(Guid userId, string key)
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{
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if (userId == Guid.Empty)
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{
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throw new ArgumentNullException("userId");
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}
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if (string.IsNullOrEmpty(key))
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{
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throw new ArgumentNullException("key");
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}
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = "select rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate from userdata where key = @key and userId=@userId";
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cmd.Parameters.Add(cmd, "@key", DbType.String).Value = key;
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cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
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var userData = new UserItemData
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{
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UserId = userId,
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Key = key
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};
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
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{
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if (reader.Read())
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{
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ReadRow(reader, ref userData);
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}
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}
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return userData;
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}
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}
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/// <summary>
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/// Return all user-data associated with the given user
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/// </summary>
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/// <param name="userId"></param>
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/// <returns></returns>
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public IEnumerable<UserItemData> GetAllUserData(Guid userId)
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{
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if (userId == Guid.Empty)
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{
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throw new ArgumentNullException("userId");
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}
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using (var cmd = _connection.CreateCommand())
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{
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cmd.CommandText = "select rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,key from userdata where userId=@userId";
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cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
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using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
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{
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while (reader.Read())
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{
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var userData = new UserItemData
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{
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UserId = userId,
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};
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ReadRow(reader, ref userData);
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userData.Key = reader.GetString(6);
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yield return userData;
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}
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}
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}
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}
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/// <summary>
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/// Read a row from the specified reader into the provided userData object
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/// </summary>
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/// <param name="reader"></param>
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/// <param name="userData"></param>
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private static void ReadRow(IDataReader reader, ref UserItemData userData)
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{
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if (!reader.IsDBNull(0))
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{
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userData.Rating = reader.GetDouble(0);
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}
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userData.Played = reader.GetBoolean(1);
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userData.PlayCount = reader.GetInt32(2);
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userData.IsFavorite = reader.GetBoolean(3);
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userData.PlaybackPositionTicks = reader.GetInt64(4);
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if (!reader.IsDBNull(5))
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{
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userData.LastPlayedDate = reader.GetDateTime(5).ToUniversalTime();
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}
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}
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/// <summary>
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/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
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/// </summary>
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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private readonly object _disposeLock = new object();
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/// <summary>
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/// Releases unmanaged and - optionally - managed resources.
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/// </summary>
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/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
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protected virtual void Dispose(bool dispose)
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{
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if (dispose)
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{
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try
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{
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lock (_disposeLock)
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{
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if (_shrinkMemoryTimer != null)
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{
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_shrinkMemoryTimer.Dispose();
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_shrinkMemoryTimer = null;
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}
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if (_connection != null)
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{
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if (_connection.IsOpen())
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{
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_connection.Close();
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}
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_connection.Dispose();
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_connection = null;
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}
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}
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error disposing database", ex);
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}
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}
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}
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}
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} |