jellyfin/Emby.Server.Core/Data/SqliteDisplayPreferencesRepository.cs

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C#
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using System;
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using System.Collections.Generic;
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using System.Data;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
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using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Serialization;
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namespace Emby.Server.Core.Data
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{
/// <summary>
/// Class SQLiteDisplayPreferencesRepository
/// </summary>
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public class SqliteDisplayPreferencesRepository : BaseSqliteRepository, IDisplayPreferencesRepository
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{
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private readonly IMemoryStreamFactory _memoryStreamProvider;
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public SqliteDisplayPreferencesRepository(ILogManager logManager, IJsonSerializer jsonSerializer, IApplicationPaths appPaths, IDbConnector dbConnector, IMemoryStreamFactory memoryStreamProvider)
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: base(logManager, dbConnector)
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{
_jsonSerializer = jsonSerializer;
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_memoryStreamProvider = memoryStreamProvider;
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DbFilePath = Path.Combine(appPaths.DataPath, "displaypreferences.db");
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}
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/// <summary>
/// Gets the name of the repository
/// </summary>
/// <value>The name.</value>
public string Name
{
get
{
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return "SQLite";
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}
}
/// <summary>
/// The _json serializer
/// </summary>
private readonly IJsonSerializer _jsonSerializer;
/// <summary>
/// Opens the connection to the database
/// </summary>
/// <returns>Task.</returns>
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public async Task Initialize()
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{
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using (var connection = await CreateConnection().ConfigureAwait(false))
{
string[] queries = {
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"create table if not exists userdisplaypreferences (id GUID, userId GUID, client text, data BLOB)",
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"create unique index if not exists userdisplaypreferencesindex on userdisplaypreferences (id, userId, client)"
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};
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connection.RunQueries(queries, Logger);
}
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}
/// <summary>
/// Save the display preferences associated with an item in the repo
/// </summary>
/// <param name="displayPreferences">The display preferences.</param>
/// <param name="userId">The user id.</param>
/// <param name="client">The client.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public async Task SaveDisplayPreferences(DisplayPreferences displayPreferences, Guid userId, string client, CancellationToken cancellationToken)
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{
if (displayPreferences == null)
{
throw new ArgumentNullException("displayPreferences");
}
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if (string.IsNullOrWhiteSpace(displayPreferences.Id))
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{
throw new ArgumentNullException("displayPreferences.Id");
}
cancellationToken.ThrowIfCancellationRequested();
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var serialized = _jsonSerializer.SerializeToBytes(displayPreferences, _memoryStreamProvider);
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using (var connection = await CreateConnection().ConfigureAwait(false))
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{
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IDbTransaction transaction = null;
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try
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{
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transaction = connection.BeginTransaction();
using (var cmd = connection.CreateCommand())
{
cmd.CommandText = "replace into userdisplaypreferences (id, userid, client, data) values (@1, @2, @3, @4)";
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cmd.Parameters.Add(cmd, "@1", DbType.Guid).Value = new Guid(displayPreferences.Id);
cmd.Parameters.Add(cmd, "@2", DbType.Guid).Value = userId;
cmd.Parameters.Add(cmd, "@3", DbType.String).Value = client;
cmd.Parameters.Add(cmd, "@4", DbType.Binary).Value = serialized;
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cmd.Transaction = transaction;
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cmd.ExecuteNonQuery();
}
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transaction.Commit();
}
catch (OperationCanceledException)
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{
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if (transaction != null)
{
transaction.Rollback();
}
throw;
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}
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catch (Exception e)
{
Logger.ErrorException("Failed to save display preferences:", e);
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if (transaction != null)
{
transaction.Rollback();
}
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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)
{
transaction.Dispose();
}
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}
}
}
/// <summary>
/// Save all display preferences associated with a user in the repo
/// </summary>
/// <param name="displayPreferences">The display preferences.</param>
/// <param name="userId">The user id.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public async Task SaveAllDisplayPreferences(IEnumerable<DisplayPreferences> displayPreferences, Guid userId, CancellationToken cancellationToken)
{
if (displayPreferences == null)
{
throw new ArgumentNullException("displayPreferences");
}
cancellationToken.ThrowIfCancellationRequested();
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using (var connection = await CreateConnection().ConfigureAwait(false))
{
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IDbTransaction transaction = null;
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try
{
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transaction = connection.BeginTransaction();
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foreach (var displayPreference in displayPreferences)
{
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var serialized = _jsonSerializer.SerializeToBytes(displayPreference, _memoryStreamProvider);
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using (var cmd = connection.CreateCommand())
{
cmd.CommandText = "replace into userdisplaypreferences (id, userid, client, data) values (@1, @2, @3, @4)";
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cmd.Parameters.Add(cmd, "@1", DbType.Guid).Value = new Guid(displayPreference.Id);
cmd.Parameters.Add(cmd, "@2", DbType.Guid).Value = userId;
cmd.Parameters.Add(cmd, "@3", DbType.String).Value = displayPreference.Client;
cmd.Parameters.Add(cmd, "@4", DbType.Binary).Value = serialized;
cmd.Transaction = transaction;
cmd.ExecuteNonQuery();
}
}
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transaction.Commit();
}
catch (OperationCanceledException)
{
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if (transaction != null)
{
transaction.Rollback();
}
throw;
}
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catch (Exception e)
{
Logger.ErrorException("Failed to save display preferences:", e);
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if (transaction != null)
{
transaction.Rollback();
}
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throw;
}
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finally
{
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if (transaction != null)
{
transaction.Dispose();
}
}
}
}
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/// <summary>
/// Gets the display preferences.
/// </summary>
/// <param name="displayPreferencesId">The display preferences id.</param>
/// <param name="userId">The user id.</param>
/// <param name="client">The client.</param>
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/// <returns>Task{DisplayPreferences}.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
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public DisplayPreferences GetDisplayPreferences(string displayPreferencesId, Guid userId, string client)
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{
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if (string.IsNullOrWhiteSpace(displayPreferencesId))
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{
throw new ArgumentNullException("displayPreferencesId");
}
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var guidId = displayPreferencesId.GetMD5();
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using (var connection = CreateConnection(true).Result)
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{
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using (var cmd = connection.CreateCommand())
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{
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cmd.CommandText = "select data from userdisplaypreferences where id = @id and userId=@userId and client=@client";
cmd.Parameters.Add(cmd, "@id", DbType.Guid).Value = guidId;
cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
cmd.Parameters.Add(cmd, "@client", DbType.String).Value = client;
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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using (var stream = reader.GetMemoryStream(0, _memoryStreamProvider))
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{
return _jsonSerializer.DeserializeFromStream<DisplayPreferences>(stream);
}
}
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}
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return new DisplayPreferences
{
Id = guidId.ToString("N")
};
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}
}
}
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/// <summary>
/// Gets all display preferences for the given user.
/// </summary>
/// <param name="userId">The user id.</param>
/// <returns>Task{DisplayPreferences}.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public IEnumerable<DisplayPreferences> GetAllDisplayPreferences(Guid userId)
{
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var list = new List<DisplayPreferences>();
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using (var connection = CreateConnection(true).Result)
{
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using (var cmd = connection.CreateCommand())
{
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cmd.CommandText = "select data from userdisplaypreferences where userId=@userId";
cmd.Parameters.Add(cmd, "@userId", DbType.Guid).Value = userId;
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
{
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while (reader.Read())
{
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using (var stream = reader.GetMemoryStream(0, _memoryStreamProvider))
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{
list.Add(_jsonSerializer.DeserializeFromStream<DisplayPreferences>(stream));
}
}
}
}
}
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return list;
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}
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public Task SaveDisplayPreferences(DisplayPreferences displayPreferences, string userId, string client, CancellationToken cancellationToken)
{
return SaveDisplayPreferences(displayPreferences, new Guid(userId), client, cancellationToken);
}
public DisplayPreferences GetDisplayPreferences(string displayPreferencesId, string userId, string client)
{
return GetDisplayPreferences(displayPreferencesId, new Guid(userId), client);
}
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}
}