/// <summary>
/// Создает команду из заголовка. Если данных недостаточно, то возвращает <code>null</code>.
/// </summary>
/// <param name="command_header"></param>
/// <param name="not_ready_data"></param>
/// <returns></returns>
public Command CreateCommand(CommandHeader command_header, out Tuple <FunctionHeader, List <DataCellHeader> > not_ready_data)
{
not_ready_data = null;
var input_data = new List <DataCell>();
var empty_input_data = new List <DataCellHeader>();
foreach (var data_cell_header in command_header.InputDataHeaders)
{
var data = _dataCellRepository.Get(new[] { data_cell_header }).FirstOrDefault();
if (data != null)
{
input_data.Add(data);
}
else
{
empty_input_data.Add(data_cell_header);
}
}
var output_data = _dataCellRepository.Get(new[] { command_header.OutputDataHeader }).FirstOrDefault();
if (output_data == null)
{
output_data = new DataCell()
{
Header = command_header.OutputDataHeader,
//HasValue = false,
HasValue = null,
Data = null
};
}
var function = _functionRepository.Get(new[] { command_header.FunctionHeader }).FirstOrDefault();
if (empty_input_data.Any() || function == null)
{
not_ready_data = new Tuple <FunctionHeader, List <DataCellHeader> >(function == null ? command_header.FunctionHeader : null, empty_input_data);
return(null);
}
return(new Command()
{
Header = new InvokeHeader()
{
CallStack = command_header.CallStack
},
Function = function,
InputData = input_data,
OutputData = output_data
});
}
private DataCell GetOutputData(DataCellHeader data_cell_header)
{
var output_data = _dataCellRepository.Get(new[] { data_cell_header }).FirstOrDefault();
if (output_data == null)
{
output_data = new DataCell()
{
Header = data_cell_header,
HasValue = null,
Data = null
};
_dataCellRepository.Add(new[] { output_data });
}
return(output_data);
}
public virtual IEnumerable <DataCell> GetDataCell(IEnumerable <DataCellHeader> data_cell_headers)
{
return(_dataCellRepository.Get(data_cell_headers));
}