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moved displaypreferences to usermanager to solve concurrency issues

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This commit is contained in:
Luke Pulverenti
2013-04-02 13:37:49 -04:00
parent dcc057f324
commit b4dd8a2106
17 changed files with 193 additions and 229 deletions
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66
MediaBrowser.Server.Implementations/Library/UserManager.cs
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@@ -1,10 +1,12 @@
using MediaBrowser.Common.Events;
using System.Collections.Concurrent;
using MediaBrowser.Common.Events;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Connectivity;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
@@ -97,6 +99,11 @@ namespace MediaBrowser.Server.Implementations.Library
/// <value>The configuration manager.</value>
private IServerConfigurationManager ConfigurationManager { get; set; }
/// <summary>
/// The _user data
/// </summary>
private readonly ConcurrentDictionary<string, Task<DisplayPreferences>> _displayPreferences = new ConcurrentDictionary<string, Task<DisplayPreferences>>();
/// <summary>
/// Initializes a new instance of the <see cref="UserManager" /> class.
/// </summary>
@@ -156,6 +163,62 @@ namespace MediaBrowser.Server.Implementations.Library
}
#endregion
/// <summary>
/// Gets the display preferences.
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="displayPreferencesId">The display preferences id.</param>
/// <returns>DisplayPreferences.</returns>
public Task<DisplayPreferences> GetDisplayPreferences(Guid userId, Guid displayPreferencesId)
{
var key = userId + displayPreferencesId.ToString();
return _displayPreferences.GetOrAdd(key, keyName => RetrieveDisplayPreferences(userId, displayPreferencesId));
}
/// <summary>
/// Retrieves the display preferences.
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="displayPreferencesId">The display preferences id.</param>
/// <returns>DisplayPreferences.</returns>
private async Task<DisplayPreferences> RetrieveDisplayPreferences(Guid userId, Guid displayPreferencesId)
{
var displayPreferences = await Kernel.Instance.DisplayPreferencesRepository.GetDisplayPreferences(userId, displayPreferencesId).ConfigureAwait(false);
return displayPreferences ?? new DisplayPreferences();
}
/// <summary>
/// Saves display preferences for an item
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="displayPreferencesId">The display preferences id.</param>
/// <param name="displayPreferences">The display preferences.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task SaveDisplayPreferences(Guid userId, Guid displayPreferencesId, DisplayPreferences displayPreferences, CancellationToken cancellationToken)
{
var key = userId + displayPreferencesId.ToString();
var newValue = Task.FromResult(displayPreferences);
try
{
await Kernel.Instance.DisplayPreferencesRepository.SaveDisplayPreferences(userId, displayPreferencesId,
displayPreferences,
cancellationToken).ConfigureAwait(false);
// Once it succeeds, put it into the dictionary to make it available to everyone else
_displayPreferences.AddOrUpdate(key, newValue, delegate { return newValue; });
}
catch (Exception ex)
{
_logger.ErrorException("Error saving display preferences", ex);
throw;
}
}
/// <summary>
/// Gets a User by Id
/// </summary>
@@ -711,6 +774,5 @@ namespace MediaBrowser.Server.Implementations.Library
return Kernel.UserDataRepository.SaveUserData(item, CancellationToken.None);
}
}
}