public void ExecuteCommand(ICommand command)
        {
            this.command = command;

            try
            {
                switch (command.Name)
                {
                case "RegisterStationaryAirConditioner":
                    validityModule.ValidateParametersCount(command, 4);
                    ui.WriteLine(registerModule.RegisterStationaryAirConditioner(
                                     command.Parameters[0],
                                     command.Parameters[1],
                                     command.Parameters[2],
                                     int.Parse(command.Parameters[3])));
                    break;

                case "RegisterCarAirConditioner":
                    validityModule.ValidateParametersCount(command, 3);
                    ui.WriteLine(registerModule.RegisterCarAirConditioner(
                                     command.Parameters[0],
                                     command.Parameters[1],
                                     int.Parse(command.Parameters[2])));
                    break;

                case "RegisterPlaneAirConditioner":
                    validityModule.ValidateParametersCount(command, 4);
                    ui.WriteLine(registerModule.RegisterPlaneAirConditioner(
                                     command.Parameters[0],
                                     command.Parameters[1],
                                     int.Parse(command.Parameters[2]),
                                     command.Parameters[3]));
                    break;

                case "TestAirConditioner":
                    validityModule.ValidateParametersCount(command, 2);
                    ui.WriteLine(testingModule.TestAirConditioner(
                                     command.Parameters[0],
                                     command.Parameters[1]));
                    break;

                case "FindAirConditioner":
                    validityModule.ValidateParametersCount(command, 2);
                    ui.WriteLine(searchingModule.FindAirConditioner(
                                     command.Parameters[0],
                                     command.Parameters[1]));
                    break;

                case "FindReport":
                    validityModule.ValidateParametersCount(command, 2);
                    ui.WriteLine(searchingModule.FindReport(
                                     command.Parameters[0],
                                     command.Parameters[1]));
                    break;

                case "Status":
                    validityModule.ValidateParametersCount(command, 0);
                    ui.WriteLine(statusModule.Status());
                    break;

                case "FindAllReportsByManufacturer":
                    validityModule.ValidateParametersCount(command, 1);
                    ui.WriteLine(searchingModule.FindAllReportsByManufacturer(command.Parameters[0]));
                    break;

                default:
                    throw new IndexOutOfRangeException(Constants.INVALIDCOMMAND);
                }
            }
            catch (FormatException ex)
            {
                throw new InvalidOperationException(Constants.INVALIDCOMMAND, ex.InnerException);
            }
            catch (IndexOutOfRangeException ex)
            {
                throw new InvalidOperationException(Constants.INVALIDCOMMAND, ex.InnerException);
            }
            catch (NonExistantEntryException)
            {
                throw new InvalidOperationException(Constants.NONEXIST);
            }
            catch (ArgumentException ex)
            {
                throw new InvalidOperationException(ex.Message);
            }
            catch (DuplicateEntryException ex)
            {
                throw new InvalidOperationException(ex.Message);
            }
        }