/// <summary>
/// Ensure that database connection opened. If opened connection missing, it will be opened asynchronously.
/// </summary>
/// <param name="cancellationToken">Asynchronous operation cancellation token.</param>
/// <returns>Async operation task.</returns>
public async Task EnsureConnectionAsync(CancellationToken cancellationToken = default)
{
if (_connection == null)
{
IDbConnection connection;
if (_connectionFactory != null)
{
connection = _connectionFactory();
}
else
{
connection = DataProvider.CreateConnection(ConnectionString);
}
_connection = AsyncFactory.Create(connection);
if (RetryPolicy != null)
{
_connection = new RetryingDbConnection(this, _connection, RetryPolicy);
}
}
if (_connection.State == ConnectionState.Closed)
{
try
{
var task = OnBeforeConnectionOpenAsync?.Invoke(this, _connection.Connection, cancellationToken);
if (task != null)
{
await task;
}
await _connection.OpenAsync(cancellationToken);
_closeConnection = true;
task = OnConnectionOpenedAsync?.Invoke(this, _connection.Connection, cancellationToken);
if (task != null)
{
await task;
}
}
catch (Exception ex)
{
if (TraceSwitch.TraceError)
{
OnTraceConnection(new TraceInfo(TraceInfoStep.Error)
{
TraceLevel = TraceLevel.Error,
DataConnection = this,
StartTime = DateTime.UtcNow,
Exception = ex,
IsAsync = true,
});
}
throw;
}
}
}
/// <summary>
/// Ensure that database connection opened. If opened connection missing, it will be opened asynchronously.
/// </summary>
/// <param name="cancellationToken">Asynchronous operation cancellation token.</param>
/// <returns>Async operation task.</returns>
public async Task EnsureConnectionAsync(CancellationToken cancellationToken = default)
{
CheckAndThrowOnDisposed();
try
{
if (_connection == null)
{
DbConnection connection;
if (_connectionFactory != null)
{
connection = _connectionFactory();
}
else
{
connection = DataProvider.CreateConnection(ConnectionString !);
}
_connection = AsyncFactory.Create(connection);
if (RetryPolicy != null)
{
_connection = new RetryingDbConnection(this, _connection, RetryPolicy);
}
}
if (_connection.State == ConnectionState.Closed)
{
if (_connectionInterceptor != null)
{
await _connectionInterceptor.ConnectionOpeningAsync(new (this), _connection.Connection, cancellationToken)
.ConfigureAwait(Configuration.ContinueOnCapturedContext);
}
await _connection.OpenAsync(cancellationToken).ConfigureAwait(Configuration.ContinueOnCapturedContext);
_closeConnection = true;
if (_connectionInterceptor != null)
{
await _connectionInterceptor.ConnectionOpenedAsync(new (this), _connection.Connection, cancellationToken)
.ConfigureAwait(Configuration.ContinueOnCapturedContext);
}
}
}
catch (Exception ex)
{
if (TraceSwitchConnection.TraceError)
{
OnTraceConnection(new TraceInfo(this, TraceInfoStep.Error, TraceOperation.Open, true)
{
TraceLevel = TraceLevel.Error,
StartTime = DateTime.UtcNow,
Exception = ex,
});
}
throw;
}
}