453 lines
17 KiB
C#
453 lines
17 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Globalization;
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using System.IO;
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using System.Text;
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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.Logging;
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namespace Emby.Server.Core.Data
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{
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public class SqliteUserDataRepository : BaseSqliteRepository, IUserDataRepository
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{
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private IDbConnection _connection;
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public SqliteUserDataRepository(ILogManager logManager, IApplicationPaths appPaths, IDbConnector connector) : base(logManager, connector)
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{
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DbFilePath = Path.Combine(appPaths.DataPath, "userdata_v2.db");
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}
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protected override bool EnableConnectionPooling
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{
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get { return false; }
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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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protected override async Task<IDbConnection> CreateConnection(bool isReadOnly = false)
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{
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var connection = await DbConnector.Connect(DbFilePath, false, false, 10000).ConfigureAwait(false);
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connection.RunQueries(new[]
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{
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"pragma temp_store = memory"
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}, Logger);
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return connection;
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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 async Task Initialize(IDbConnection connection, SemaphoreSlim writeLock)
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{
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WriteLock.Dispose();
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WriteLock = writeLock;
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_connection = connection;
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string[] queries = {
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"create table if not exists UserDataDb.userdata (key nvarchar, userId GUID, rating float null, played bit, playCount int, isFavorite bit, playbackPositionTicks bigint, lastPlayedDate datetime null)",
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"drop index if exists UserDataDb.idx_userdata",
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"drop index if exists UserDataDb.idx_userdata1",
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"drop index if exists UserDataDb.idx_userdata2",
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"drop index if exists UserDataDb.userdataindex1",
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"create unique index if not exists UserDataDb.userdataindex on userdata (key, userId)",
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"create index if not exists UserDataDb.userdataindex2 on userdata (key, userId, played)",
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"create index if not exists UserDataDb.userdataindex3 on userdata (key, userId, playbackPositionTicks)",
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"create index if not exists UserDataDb.userdataindex4 on userdata (key, userId, isFavorite)",
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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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_connection.AddColumn(Logger, "userdata", "AudioStreamIndex", "int");
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_connection.AddColumn(Logger, "userdata", "SubtitleStreamIndex", "int");
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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,AudioStreamIndex,SubtitleStreamIndex) values (@key, @userId, @rating,@played,@playCount,@isFavorite,@playbackPositionTicks,@lastPlayedDate,@AudioStreamIndex,@SubtitleStreamIndex)";
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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.Parameters.Add(cmd, "@AudioStreamIndex", DbType.Int32).Value = userData.AudioStreamIndex;
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cmd.Parameters.Add(cmd, "@SubtitleStreamIndex", DbType.Int32).Value = userData.SubtitleStreamIndex;
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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,AudioStreamIndex,SubtitleStreamIndex) values (@key, @userId, @rating,@played,@playCount,@isFavorite,@playbackPositionTicks,@lastPlayedDate,@AudioStreamIndex,@SubtitleStreamIndex)";
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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.Parameters.Add(cmd, "@AudioStreamIndex", DbType.Int32).Value = userItemData.AudioStreamIndex;
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cmd.Parameters.Add(cmd, "@SubtitleStreamIndex", DbType.Int32).Value = userItemData.SubtitleStreamIndex;
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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 key,userid,rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex 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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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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return ReadRow(reader);
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}
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}
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return null;
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}
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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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using (var cmd = _connection.CreateCommand())
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{
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var index = 0;
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var userdataKeys = new List<string>();
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var builder = new StringBuilder();
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foreach (var key in keys)
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{
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var paramName = "@Key" + index;
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userdataKeys.Add("Key =" + paramName);
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cmd.Parameters.Add(cmd, paramName, DbType.String).Value = key;
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builder.Append(" WHEN Key=" + paramName + " THEN " + index);
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index++;
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break;
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}
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var keyText = string.Join(" OR ", userdataKeys.ToArray());
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cmd.CommandText = "select key,userid,rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex from userdata where userId=@userId AND (" + keyText + ") ";
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cmd.CommandText += " ORDER BY (Case " + builder + " Else " + keys.Count.ToString(CultureInfo.InvariantCulture) + " End )";
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cmd.CommandText += " LIMIT 1";
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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 | CommandBehavior.SingleRow))
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{
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if (reader.Read())
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{
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return ReadRow(reader);
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}
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}
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return null;
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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 key,userid,rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex 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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yield return ReadRow(reader);
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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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private UserItemData ReadRow(IDataReader reader)
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{
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var userData = new UserItemData();
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userData.Key = reader.GetString(0);
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userData.UserId = reader.GetGuid(1);
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if (!reader.IsDBNull(2))
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{
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userData.Rating = reader.GetDouble(2);
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}
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userData.Played = reader.GetBoolean(3);
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userData.PlayCount = reader.GetInt32(4);
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userData.IsFavorite = reader.GetBoolean(5);
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userData.PlaybackPositionTicks = reader.GetInt64(6);
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if (!reader.IsDBNull(7))
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{
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userData.LastPlayedDate = reader.GetDateTime(7).ToUniversalTime();
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}
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if (!reader.IsDBNull(8))
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{
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userData.AudioStreamIndex = reader.GetInt32(8);
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}
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if (!reader.IsDBNull(9))
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{
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userData.SubtitleStreamIndex = reader.GetInt32(9);
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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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} |