public void BindParameters(ActionDescriptor actionDescriptor, IDictionary<string, object> environment, IEnumerable<MediaTypeFormatter> formatters)
{
var queryString = environment["owin.RequestQueryString"] as string;
if (queryString == null)
throw new ArgumentNullException("environment[\"owin.RequestQueryString\"]");
var queryParameters = GenerateQueryParameter(queryString);
foreach (var param in actionDescriptor.ActionArguments)
BindParameter(queryParameters, param);
}
/// <summary>
/// Generates action descriptor from controller
/// </summary>
/// <param name="controller"></param>
/// <returns></returns>
public ActionDescriptor GenerateActionDescriptor(RestController controller)
{
var actionDescriptor = new ActionDescriptor(controller.Route.ActionName);
var action = GetActionMethodInfo(controller, actionDescriptor.ActionName);
if (action == null)
return null;
MapActionParameters(actionDescriptor, action);
return actionDescriptor;
}
private async Task<object> InvokeActionAsync(RestController controller, ActionDescriptor descriptor)
{
var controllerType = controller.GetType();
var actionMethod = controllerType.GetMethod(descriptor.ActionName);
var result = actionMethod.Invoke(controller, descriptor.ActionArguments.Select(a => a.ParamValue).ToArray());
if (result == null)
result = (object)DBNull.Value;
return await Task.FromResult(result);
}
public void TestMethod1()
{
int labasValue = 121;
var queryString = "labas="+labasValue+"&iki=qwe";
IDictionary<string, object> environment = new Dictionary<string, object>();
environment.Add("owin.RequestQueryString", queryString);
var paramBinder = new ActionParameterBinder();
var actionDescriptor = new ActionDescriptor("test");
actionDescriptor.ActionArguments.Add(new ActionArgumentDescriptor("labas", typeof(int), null));
paramBinder.BindParameters(actionDescriptor, environment, new List<MediaTypeFormatter>());
Assert.AreEqual(actionDescriptor.ActionArguments[0].ParamValue, labasValue);
}
/// <summary>
/// Maps action MethodInfo parameters to action descriptor
/// </summary>
/// <param name="descriptor"></param>
/// <param name="action"></param>
public void MapActionParameters(ActionDescriptor descriptor, MethodInfo action)
{
foreach (var parameter in action.GetParameters())
descriptor.ActionArguments.Add(new ActionArgumentDescriptor(parameter.Name, parameter.ParameterType, parameter.HasDefaultValue ? parameter.DefaultValue : null));
}