/// <inheritdoc />
public void ExecuteReader(CommandBehavior commandBehavior)
{
Packet response;
if (null != _parentCommand.Guid)
{
var request = Fields.Fields.SerializeObject(new GuidAndIndexRequest
{
Guid = _parentCommand.Guid,
Index = (int)commandBehavior
});
response = _controller.SendAndWaitAsync(SQLiteMessage.ExecuteReaderRequest, request.Pack(), _queryTimeouts)
.Result;
}
else
{
var request = Fields.Fields.SerializeObject(new CommandTextAndIndexRequest
{
CommandText = _parentCommand.CommandText,
Index = (int)commandBehavior
});
response = _controller.SendAndWaitAsync(SQLiteMessage.ExecuteCommandReaderRequest, request.Pack(), _queryTimeouts)
.Result;
}
switch (response.Message)
{
case SQLiteMessage.SendAndWaitTimeOut:
throw new TimeoutException("There was a timeout error creating the Command.");
case SQLiteMessage.ExecuteReaderResponse:
var fields = Fields.Fields.Unpack(response.Payload);
_currentRowHeader = Fields.Fields.DeserializeObject <RowHeader>(fields);
_parentCommand.Guid = _currentRowHeader.Guid;
return;
case SQLiteMessage.ExecuteReaderException:
var error = response.Get <string>();
throw new SQLiteServerException(error);
default:
throw new InvalidOperationException($"Unknown response {response.Message} from the server.");
}
}
/// <summary>
/// Get the server guid
/// </summary>
/// <returns></returns>
private async Task <string> CreateGuidAsync()
{
var response = await _controller.SendAndWaitAsync(SQLiteMessage.CreateCommandRequest, Encoding.ASCII.GetBytes(CommandText), CommandTimeout).ConfigureAwait(false);
switch (response.Message)
{
case SQLiteMessage.SendAndWaitTimeOut:
throw new TimeoutException("There was a timeout error creating the Command.");
case SQLiteMessage.CreateCommandResponse:
return(response.Get <string>());
case SQLiteMessage.CreateCommandException:
throw new SQLiteServerException(response.Get <string>());
default:
throw new InvalidOperationException($"Unknown response {response.Message} from the server.");
}
}
/// <inheritdoc />
public async Task <SQLiteConnection> LockConnectionAsync()
{
// can we use this?
ThrowIfAny();
// wait for the connection
if (!await WaitForLockedConnectionAsync(-1).ConfigureAwait(false))
{
throw new SQLiteServerException("Unable to obtain connection lock");
}
// can we use this?
ThrowIfAny();
// wait for the connection
if (!await WaitForLockedConnectionAsync(-1).ConfigureAwait(false))
{
throw new SQLiteServerException("Unable to obtain connection lock");
}
var response = await _controller.SendAndWaitAsync(SQLiteMessage.LockConnectionRequest, null, CommandTimeout).ConfigureAwait(false);
switch (response.Message)
{
case SQLiteMessage.SendAndWaitTimeOut:
throw new TimeoutException("There was a timeout error obtaining the lock.");
case SQLiteMessage.LockConnectionResponse:
_connection = new SQLiteConnection(_connectionString);
_connection.Open();
return(_connection);
case SQLiteMessage.LockConnectionException:
throw new SQLiteServerException(response.Get <string>());
default:
throw new InvalidOperationException($"Unknown response {response.Message} from the server.");
}
}
