public async Task ExecuteAsync(CliActionContext context)
{
if (context.ActionRoute?.ControllerType == null || context.ActionRoute?.ActionMethod == null)
{
throw new NoActionException();
}
await ExecuteActionRouteAsync(context);
}
public async Task <int> ExecuteAsync(string[] args)
{
if (_middlewarePipeline == null)
{
throw new InvalidOperationException("CLI action runtime not initialized");
}
var context = new CliActionContext(new CliActionRequest(args));
await _middlewarePipeline(context);
return(context.ReturnCode);
}
private static object[] CreateActionArguments(CliActionContext context)
{
var parameters = context.ActionRoute !.ActionMethod.GetParameters();
switch (parameters.Length)
{
case 0:
return(Array.Empty <object>());
case > 1:
throw new TargetParameterCountException("Action argument count must be 0 or 1");
default:
{
var option = new OptionParser(parameters.First().ParameterType).Parse(context.Arguments.ToArray());
return(new[] { option });
}
}
}
private async Task ExecuteActionRouteAsync(CliActionContext context)
{
var controller = context.ActionRoute !.ControllerType.CreateInstance <object>(_serviceProvider);
var actionArguments = CreateActionArguments(context);
var result = context.ActionRoute.ActionMethod.Invoke(controller, actionArguments);
var isVoid = context.ActionRoute.ActionMethod.ReturnType == typeof(void);
if (result == null && !isVoid)
{
throw new ActionReturnValueNullException();
}
if (isVoid)
{
return;
}
var resultType = result !.GetType();
if (resultType == typeof(Task <CliActionResult>))
{
var actionResult = await(Task <CliActionResult>) result;
context.ReturnCode = actionResult.ReturnCode;
return;
}
if (resultType == typeof(Task <int>))
{
var returnCode = await(Task <int>) result;
context.ReturnCode = returnCode;
return;
}
if (result is Task taskResult)
{
await taskResult;
return;
}
if (resultType == typeof(int))
{
context.ReturnCode = (int)result;
return;
}
if (resultType != typeof(CliActionResult))
{
throw new ActionReturnTypeNotSupportedException(resultType);
}
context.ReturnCode = ((CliActionResult)result).ReturnCode;
}
