public NavigationTarget CreateTarget(string url)
{
if (!url.StartsWith(Scheme))
{
url = string.Format("{0}{1}", Scheme, url);
}
var uriInfo = new UriInfo(url);
var route = FindRoute(uriInfo.Path);
if (route == null)
{
throw new Exception("Could not find a route for '" + url + "'.");
}
var parameters = ExtractParameters(route, uriInfo);
var cons = GetConstructor(route.TargetType, parameters);
if (cons == null)
{
throw new Exception("Could not find a constructor in type " + route.TargetType.Name + " that matches '" + url + "'.");
}
var ctorparams = cons.GetParameters();
var parameterValues = ctorparams.Select(p =>
{
var value = parameters[p.Name.ToLowerInvariant()];
return ChangeType(value, p.ParameterType);
});
var target = cons.Invoke(parameterValues.ToArray()) as NavigationTarget;
return target;
}
public void When_url_contains_a_scheme_then_should_not_throw()
{
const string url = "test://S/95368018";
var info = new UriInfo(url);
Assert.AreEqual(2, info.Segments.Count);
}
private Dictionary<string, string> ExtractParameters(Route route, UriInfo uriInfo)
{
var parameters = new Dictionary<string, string>();
for (int i = 0; i < route.Segments.Count; i++)
{
if (route.Segments[i].IsVariable)
{
parameters.Add(route.Segments[i].Name.ToLowerInvariant(), uriInfo.Segments[i]);
}
}
foreach (var qs in uriInfo.QueryString)
{
parameters.Add(qs.Key.ToLowerInvariant(), qs.Value);
}
return parameters;
}
public void When_url_does_not_contain_a_scheme_then_should_throw()
{
const string url = "S/95368018";
Assert.ThrowsException<ArgumentException>(() => { var info = new UriInfo(url); });
}