public void PatternMatching()
{
var terminals = new TerminalBase[] { new StandAloneTerminal(hasPrinter: false), new StandAloneTerminal(hasPrinter: true), new CashRegisteredTerminal(), new MobileTerminal(), null };
const string Text = "Thanks for your purchase";
foreach (var terminal in terminals)
{
switch (terminal)
{
case StandAloneTerminal t when t.HasPrinter: t.PrintReceipt(Text);
break;
case StandAloneTerminal t when !t.HasPrinter: t.SendMail(Text);
break;
case CashRegisteredTerminal t: t.NotifyCashRegister();
break;
case MobileTerminal t: t.NotifyPhoneApp(Text);
break;
case null: Console.WriteLine("Terminal is null.");
break;
default:
throw new InvalidOperationException("Terminal type is not supported");
}
}
}
/// <summary>
/// 方法说明：根据触角SDK发送数据获取SDK发送数据
/// </summary>
/// <param name="antsdksend"></param>
/// <returns></returns>
internal static SdkMsTerminalBase GetSdkSend(TerminalBase antsdksend)
{
try
{
var hearbeatantsdksend = antsdksend as HeartBeat;
if (hearbeatantsdksend != null)
{
var sdksend = hearbeatantsdksend.GetSdkSend();
return(sdksend);
}
var offlineantsdksend = antsdksend as QuestOffLine;
if (offlineantsdksend != null)
{
var sdksend = offlineantsdksend.GetSdkSend();
return(sdksend);
}
//非终端类型的返回空
return(null);
}
catch (Exception ex)
{
LogHelper.WriteError(
$"[AntSdkSendMsg.Terminal.GetSdkSend]:{Environment.NewLine}{ex.Message}{ex.StackTrace}");
return(null);
}
}
