420 lines
15 KiB
C#
420 lines
15 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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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.IO;
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using MediaBrowser.Model.Logging;
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using SQLitePCL.pretty;
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namespace Emby.Server.Implementations.Data
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{
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public class SqliteUserDataRepository : BaseSqliteRepository, IUserDataRepository
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{
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private readonly string _importFile;
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private readonly IFileSystem _fileSystem;
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public SqliteUserDataRepository(ILogger logger, IApplicationPaths appPaths, IFileSystem fileSystem)
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: base(logger)
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{
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_fileSystem = fileSystem;
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DbFilePath = Path.Combine(appPaths.DataPath, "library.db");
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_importFile = Path.Combine(appPaths.DataPath, "userdata_v2.db");
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}
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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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/// Opens the connection to the database
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/// </summary>
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/// <returns>Task.</returns>
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public void Initialize(ReaderWriterLockSlim writeLock)
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{
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WriteLock.Dispose();
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WriteLock = writeLock;
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using (var connection = CreateConnection())
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{
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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 table if not exists DataSettings (IsUserDataImported bit)",
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"drop index if exists idx_userdata",
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"drop index if exists idx_userdata1",
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"drop index if exists idx_userdata2",
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"drop index if exists userdataindex1",
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"create unique index if not exists userdataindex on userdata (key, userId)",
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"create index if not exists userdataindex2 on userdata (key, userId, played)",
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"create index if not exists userdataindex3 on userdata (key, userId, playbackPositionTicks)",
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"create index if not exists userdataindex4 on userdata (key, userId, isFavorite)",
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"pragma shrink_memory"
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};
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connection.RunQueries(queries);
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connection.RunInTransaction(db =>
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{
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var existingColumnNames = GetColumnNames(db, "userdata");
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AddColumn(db, "userdata", "AudioStreamIndex", "int", existingColumnNames);
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AddColumn(db, "userdata", "SubtitleStreamIndex", "int", existingColumnNames);
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}, TransactionMode);
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ImportUserDataIfNeeded(connection);
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}
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}
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protected override bool EnableTempStoreMemory
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{
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get
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{
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return true;
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}
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}
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private void ImportUserDataIfNeeded(IDatabaseConnection connection)
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{
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if (!_fileSystem.FileExists(_importFile))
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{
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return;
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}
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var fileToImport = _importFile;
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var isImported = connection.Query("select IsUserDataImported from DataSettings").SelectScalarBool().FirstOrDefault();
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if (isImported)
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{
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return;
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}
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ImportUserData(connection, fileToImport);
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connection.RunInTransaction(db =>
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{
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using (var statement = db.PrepareStatement("replace into DataSettings (IsUserDataImported) values (@IsUserDataImported)"))
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{
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statement.TryBind("@IsUserDataImported", true);
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statement.MoveNext();
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}
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}, TransactionMode);
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}
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private void ImportUserData(IDatabaseConnection connection, string file)
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{
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SqliteExtensions.Attach(connection, file, "UserDataBackup");
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var columns = "key, userId, rating, played, playCount, isFavorite, playbackPositionTicks, lastPlayedDate, AudioStreamIndex, SubtitleStreamIndex";
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connection.RunInTransaction(db =>
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{
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db.Execute("REPLACE INTO userdata(" + columns + ") SELECT " + columns + " FROM UserDataBackup.userdata;");
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}, TransactionMode);
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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.ToList(), 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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using (var connection = CreateConnection())
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{
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using (WriteLock.Write())
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{
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connection.RunInTransaction(db =>
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{
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SaveUserData(db, userId, key, userData);
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}, TransactionMode);
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}
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}
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}
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private void SaveUserData(IDatabaseConnection db, Guid userId, string key, UserItemData userData)
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{
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using (var statement = db.PrepareStatement("replace into userdata (key, userId, rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex) values (@key, @userId, @rating,@played,@playCount,@isFavorite,@playbackPositionTicks,@lastPlayedDate,@AudioStreamIndex,@SubtitleStreamIndex)"))
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{
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statement.TryBind("@userId", userId.ToGuidParamValue());
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statement.TryBind("@key", key);
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if (userData.Rating.HasValue)
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{
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statement.TryBind("@rating", userData.Rating.Value);
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}
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else
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{
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statement.TryBindNull("@rating");
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}
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statement.TryBind("@played", userData.Played);
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statement.TryBind("@playCount", userData.PlayCount);
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statement.TryBind("@isFavorite", userData.IsFavorite);
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statement.TryBind("@playbackPositionTicks", userData.PlaybackPositionTicks);
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if (userData.LastPlayedDate.HasValue)
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{
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statement.TryBind("@lastPlayedDate", userData.LastPlayedDate.Value.ToDateTimeParamValue());
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}
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else
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{
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statement.TryBindNull("@lastPlayedDate");
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}
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if (userData.AudioStreamIndex.HasValue)
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{
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statement.TryBind("@AudioStreamIndex", userData.AudioStreamIndex.Value);
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}
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else
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{
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statement.TryBindNull("@AudioStreamIndex");
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}
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if (userData.SubtitleStreamIndex.HasValue)
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{
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statement.TryBind("@SubtitleStreamIndex", userData.SubtitleStreamIndex.Value);
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}
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else
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{
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statement.TryBindNull("@SubtitleStreamIndex");
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}
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statement.MoveNext();
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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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private async Task PersistAllUserData(Guid userId, List<UserItemData> userDataList, CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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using (var connection = CreateConnection())
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{
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using (WriteLock.Write())
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{
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connection.RunInTransaction(db =>
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{
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foreach (var userItemData in userDataList)
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{
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SaveUserData(db, userId, userItemData.Key, userItemData);
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}
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}, TransactionMode);
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}
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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 connection = CreateConnection(true))
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{
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using (WriteLock.Read())
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{
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using (var statement = connection.PrepareStatement("select key,userid,rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex from userdata where key =@Key and userId=@UserId"))
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{
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statement.TryBind("@UserId", userId.ToGuidParamValue());
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statement.TryBind("@Key", key);
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foreach (var row in statement.ExecuteQuery())
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{
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return ReadRow(row);
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}
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}
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}
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}
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return null;
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}
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public UserItemData GetUserData(Guid userId, List<string> keys)
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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 (keys == null)
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{
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throw new ArgumentNullException("keys");
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}
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if (keys.Count == 0)
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{
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return null;
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}
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return GetUserData(userId, keys[0]);
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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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var list = new List<UserItemData>();
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using (var connection = CreateConnection())
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{
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using (WriteLock.Read())
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{
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using (var statement = connection.PrepareStatement("select key,userid,rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex from userdata where userId=@UserId"))
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{
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statement.TryBind("@UserId", userId.ToGuidParamValue());
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foreach (var row in statement.ExecuteQuery())
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{
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list.Add(ReadRow(row));
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}
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}
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}
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}
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return list;
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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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private UserItemData ReadRow(IReadOnlyList<IResultSetValue> reader)
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{
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var userData = new UserItemData();
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userData.Key = reader[0].ToString();
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userData.UserId = reader[1].ReadGuid();
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if (reader[2].SQLiteType != SQLiteType.Null)
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{
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userData.Rating = reader[2].ToDouble();
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}
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userData.Played = reader[3].ToBool();
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userData.PlayCount = reader[4].ToInt();
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userData.IsFavorite = reader[5].ToBool();
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userData.PlaybackPositionTicks = reader[6].ToInt64();
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if (reader[7].SQLiteType != SQLiteType.Null)
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{
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userData.LastPlayedDate = reader[7].ReadDateTime();
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}
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if (reader[8].SQLiteType != SQLiteType.Null)
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{
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userData.AudioStreamIndex = reader[8].ToInt();
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}
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if (reader[9].SQLiteType != SQLiteType.Null)
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{
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userData.SubtitleStreamIndex = reader[9].ToInt();
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}
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return userData;
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}
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protected override void Dispose(bool dispose)
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{
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// handled by library database
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}
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protected override void CloseConnection()
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{
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// handled by library database
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}
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}
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} |