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use individual connections

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This commit is contained in:
Luke Pulverenti
2016-06-11 11:55:05 -04:00
parent 682edf5abd
commit 4c7f292ba8
12 changed files with 1196 additions and 1281 deletions
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177
MediaBrowser.Server.Implementations/Social/SharingRepository.cs
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@@ -12,27 +12,21 @@ namespace MediaBrowser.Server.Implementations.Social
{
public class SharingRepository : BaseSqliteRepository
{
private IDbConnection _connection;
private IDbCommand _saveShareCommand;
private readonly IApplicationPaths _appPaths;
public SharingRepository(ILogManager logManager, IApplicationPaths appPaths)
: base(logManager)
public SharingRepository(ILogManager logManager, IApplicationPaths appPaths, IDbConnector dbConnector)
: base(logManager, dbConnector)
{
_appPaths = appPaths;
DbFilePath = Path.Combine(appPaths.DataPath, "shares.db");
}
/// <summary>
/// Opens the connection to the database
/// </summary>
/// <returns>Task.</returns>
public async Task Initialize(IDbConnector dbConnector)
public async Task Initialize()
{
var dbFile = Path.Combine(_appPaths.DataPath, "shares.db");
_connection = await dbConnector.Connect(dbFile).ConfigureAwait(false);
string[] queries = {
using (var connection = await CreateConnection().ConfigureAwait(false))
{
string[] queries = {
"create table if not exists Shares (Id GUID, ItemId TEXT, UserId TEXT, ExpirationDate DateTime, PRIMARY KEY (Id))",
"create index if not exists idx_Shares on Shares(Id)",
@@ -43,23 +37,8 @@ namespace MediaBrowser.Server.Implementations.Social
"pragma shrink_memory"
};
_connection.RunQueries(queries, Logger);
PrepareStatements();
}
/// <summary>
/// Prepares the statements.
/// </summary>
private void PrepareStatements()
{
_saveShareCommand = _connection.CreateCommand();
_saveShareCommand.CommandText = "replace into Shares (Id, ItemId, UserId, ExpirationDate) values (@Id, @ItemId, @UserId, @ExpirationDate)";
_saveShareCommand.Parameters.Add(_saveShareCommand, "@Id");
_saveShareCommand.Parameters.Add(_saveShareCommand, "@ItemId");
_saveShareCommand.Parameters.Add(_saveShareCommand, "@UserId");
_saveShareCommand.Parameters.Add(_saveShareCommand, "@ExpirationDate");
connection.RunQueries(queries, Logger);
}
}
public async Task CreateShare(SocialShareInfo info)
@@ -77,53 +56,62 @@ namespace MediaBrowser.Server.Implementations.Social
cancellationToken.ThrowIfCancellationRequested();
await WriteLock.WaitAsync(cancellationToken).ConfigureAwait(false);
IDbTransaction transaction = null;
try
using (var connection = await CreateConnection().ConfigureAwait(false))
{
transaction = _connection.BeginTransaction();
_saveShareCommand.GetParameter(0).Value = new Guid(info.Id);
_saveShareCommand.GetParameter(1).Value = info.ItemId;
_saveShareCommand.GetParameter(2).Value = info.UserId;
_saveShareCommand.GetParameter(3).Value = info.ExpirationDate;
_saveShareCommand.Transaction = transaction;
_saveShareCommand.ExecuteNonQuery();
transaction.Commit();
}
catch (OperationCanceledException)
{
if (transaction != null)
using (var saveShareCommand = connection.CreateCommand())
{
transaction.Rollback();
saveShareCommand.CommandText = "replace into Shares (Id, ItemId, UserId, ExpirationDate) values (@Id, @ItemId, @UserId, @ExpirationDate)";
saveShareCommand.Parameters.Add(saveShareCommand, "@Id");
saveShareCommand.Parameters.Add(saveShareCommand, "@ItemId");
saveShareCommand.Parameters.Add(saveShareCommand, "@UserId");
saveShareCommand.Parameters.Add(saveShareCommand, "@ExpirationDate");
IDbTransaction transaction = null;
try
{
transaction = connection.BeginTransaction();
saveShareCommand.GetParameter(0).Value = new Guid(info.Id);
saveShareCommand.GetParameter(1).Value = info.ItemId;
saveShareCommand.GetParameter(2).Value = info.UserId;
saveShareCommand.GetParameter(3).Value = info.ExpirationDate;
saveShareCommand.Transaction = transaction;
saveShareCommand.ExecuteNonQuery();
transaction.Commit();
}
catch (OperationCanceledException)
{
if (transaction != null)
{
transaction.Rollback();
}
throw;
}
catch (Exception e)
{
Logger.ErrorException("Failed to save share:", e);
if (transaction != null)
{
transaction.Rollback();
}
throw;
}
finally
{
if (transaction != null)
{
transaction.Dispose();
}
}
}
throw;
}
catch (Exception e)
{
Logger.ErrorException("Failed to save share:", e);
if (transaction != null)
{
transaction.Rollback();
}
throw;
}
finally
{
if (transaction != null)
{
transaction.Dispose();
}
WriteLock.Release();
}
}
@@ -134,20 +122,23 @@ namespace MediaBrowser.Server.Implementations.Social
throw new ArgumentNullException("id");
}
var cmd = _connection.CreateCommand();
cmd.CommandText = "select Id, ItemId, UserId, ExpirationDate from Shares where id = @id";
cmd.Parameters.Add(cmd, "@id", DbType.Guid).Value = new Guid(id);
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
using (var connection = CreateConnection(true).Result)
{
if (reader.Read())
{
return GetSocialShareInfo(reader);
}
}
var cmd = connection.CreateCommand();
cmd.CommandText = "select Id, ItemId, UserId, ExpirationDate from Shares where id = @id";
return null;
cmd.Parameters.Add(cmd, "@id", DbType.Guid).Value = new Guid(id);
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow))
{
if (reader.Read())
{
return GetSocialShareInfo(reader);
}
}
return null;
}
}
private SocialShareInfo GetSocialShareInfo(IDataReader reader)
@@ -164,21 +155,7 @@ namespace MediaBrowser.Server.Implementations.Social
public async Task DeleteShare(string id)
{
}
protected override void CloseConnection()
{
if (_connection != null)
{
if (_connection.IsOpen())
{
_connection.Close();
}
_connection.Dispose();
_connection = null;
}
}
}
}