public ValueTask OnMethodEndAsync(ConsoleAppContext context, string?errorMessageIfFailed, Exception?exceptionIfExists)
{
this.CompleteSuccessfully = (errorMessageIfFailed == null && exceptionIfExists == null);
this.ErrorMessage = errorMessageIfFailed;
this.Exception = exceptionIfExists;
return(innerInterceptor.OnMethodEndAsync(context, errorMessageIfFailed, exceptionIfExists));
}
public async Task StopAsync(CancellationToken cancellationToken)
{
try
{
cancellationTokenSource?.Cancel();
var task = runningTask;
if (task != null)
{
logger.LogTrace("Detect Cancel signal, wait for running console app task canceled.");
await task;
logger.LogTrace("ConsoleApp cancel completed.");
}
}
finally
{
await interceptor.OnMethodEndAsync();
scope.Dispose();
}
}
public ValueTask OnMethodEndAsync()
{
return(innerInterceptor.OnMethodEndAsync());
}
public async Task RunAsync(Type type, string[] args)
{
logger.LogTrace("ConsoleAppEngine.Run Start");
int argsOffset = 0;
MethodInfo?method = null;
var ctx = new ConsoleAppContext(args, DateTime.UtcNow, cancellationToken, logger);
try
{
await interceptor.OnMethodBeginAsync(ctx);
if (type == typeof(void))
{
await SetFailAsync(ctx, "Type or method does not found on this Program. args: " + string.Join(" ", args));
return;
}
var methods = type.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
if (methods.Length == 0)
{
await SetFailAsync(ctx, "Method can not select. T of Run/UseConsoleAppEngine<T> have to be contain single method or command. Type:" + type.FullName);
return;
}
MethodInfo?helpMethod = null;
foreach (var item in methods)
{
var command = item.GetCustomAttribute <CommandAttribute>();
if (command != null)
{
if (args.Length > 0 && command.EqualsAny(args[0]))
{
// command's priority is first
method = item;
argsOffset = 1;
goto RUN;
}
else
{
if (command.EqualsAny("help"))
{
helpMethod = item;
}
}
}
else
{
if (method != null)
{
await SetFailAsync(ctx, "Found more than one public methods(without command). Type:" + type.FullName + " Method:" + method.Name + " and " + item.Name);
return;
}
method = item; // found single public(non-command) method.
}
}
if (method != null)
{
goto RUN;
}
// completely not found, invalid command name show help.
if (helpMethod != null)
{
method = helpMethod;
goto RUN;
}
else
{
Console.Write(new CommandHelpBuilder().BuildHelpMessage(methods, null));
await interceptor.OnMethodEndAsync(ctx, null, null);
return;
}
}
catch (Exception ex)
{
await SetFailAsync(ctx, "Fail to get method. Type:" + type.FullName, ex);
return;
}
RUN:
await RunCore(ctx, type, method, args, argsOffset);
}