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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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95
MediaBrowser.Server.Implementations/Sqlite/SQLiteDisplayPreferencesRepository.cs
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@@ -1,11 +1,9 @@
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Threading;
@@ -80,8 +78,8 @@ namespace MediaBrowser.Server.Implementations.Sqlite
string[] queries = {
"create table if not exists display_prefs (item_id GUID, user_id GUID, data BLOB)",
"create unique index if not exists idx_display_prefs on display_prefs (item_id, user_id)",
"create table if not exists displaypreferences (id GUID, userId GUID, data BLOB)",
"create unique index if not exists displaypreferencesindex on displaypreferences (id, userId)",
"create table if not exists schema_version (table_name primary key, version)",
//pragmas
"pragma temp_store = memory"
@@ -93,82 +91,87 @@ namespace MediaBrowser.Server.Implementations.Sqlite
/// <summary>
/// Save the display preferences associated with an item in the repo
/// </summary>
/// <param name="item">The item.</param>
/// <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>
/// <exception cref="System.ArgumentNullException">item</exception>
public Task SaveDisplayPreferences(Folder item, CancellationToken cancellationToken)
public Task SaveDisplayPreferences(Guid userId, Guid displayPreferencesId, DisplayPreferences displayPreferences, CancellationToken cancellationToken)
{
if (item == null)
if (displayPreferences == null)
{
throw new ArgumentNullException("item");
throw new ArgumentNullException("displayPreferences");
}
if (cancellationToken == null)
{
throw new ArgumentNullException("cancellationToken");
}
if (userId == Guid.Empty)
{
throw new ArgumentNullException("userId");
}
if (displayPreferencesId == Guid.Empty)
{
throw new ArgumentNullException("displayPreferencesId");
}
cancellationToken.ThrowIfCancellationRequested();
return Task.Run(() =>
{
var serialized = _protobufSerializer.SerializeToBytes(displayPreferences);
cancellationToken.ThrowIfCancellationRequested();
var cmd = connection.CreateCommand();
cmd.CommandText = "delete from display_prefs where item_id = @guid";
cmd.AddParam("@guid", item.DisplayPreferencesId);
cmd.CommandText = "replace into displaypreferences (id, userId, data) values (@1, @2, @3)";
cmd.AddParam("@1", displayPreferencesId);
cmd.AddParam("@2", userId);
cmd.AddParam("@3", serialized);
QueueCommand(cmd);
if (item.DisplayPreferences != null)
{
foreach (var data in item.DisplayPreferences)
{
cmd = connection.CreateCommand();
cmd.CommandText = "insert into display_prefs (item_id, user_id, data) values (@1, @2, @3)";
cmd.AddParam("@1", item.DisplayPreferencesId);
cmd.AddParam("@2", data.UserId);
cmd.AddParam("@3", _protobufSerializer.SerializeToBytes(data));
QueueCommand(cmd);
}
}
});
}
/// <summary>
/// Gets display preferences for an item
/// Gets the display preferences.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>IEnumerable{DisplayPreferences}.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
public IEnumerable<DisplayPreferences> RetrieveDisplayPreferences(Folder item)
/// <param name="userId">The user id.</param>
/// <param name="displayPreferencesId">The display preferences id.</param>
/// <returns>Task{DisplayPreferences}.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public async Task<DisplayPreferences> GetDisplayPreferences(Guid userId, Guid displayPreferencesId)
{
if (item == null)
if (userId == Guid.Empty)
{
throw new ArgumentNullException("item");
throw new ArgumentNullException("userId");
}
if (displayPreferencesId == Guid.Empty)
{
throw new ArgumentNullException("displayPreferencesId");
}
var cmd = connection.CreateCommand();
cmd.CommandText = "select data from display_prefs where item_id = @guid";
var guidParam = cmd.Parameters.Add("@guid", DbType.Guid);
guidParam.Value = item.DisplayPreferencesId;
cmd.CommandText = "select data from displaypreferences where id = @id and userId=@userId";
var idParam = cmd.Parameters.Add("@id", DbType.Guid);
idParam.Value = displayPreferencesId;
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
var userIdParam = cmd.Parameters.Add("@userId", DbType.Guid);
userIdParam.Value = userId;
using (var reader = await cmd.ExecuteReaderAsync(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow).ConfigureAwait(false))
{
while (reader.Read())
if (reader.Read())
{
using (var stream = GetStream(reader, 0))
{
var data = _protobufSerializer.DeserializeFromStream<DisplayPreferences>(stream);
if (data != null)
{
yield return data;
}
return _protobufSerializer.DeserializeFromStream<DisplayPreferences>(stream);
}
}
}
return null;
}
}
}