/// <summary>
/// Processes one attribute route
/// </summary>
/// <param name="action">Action to process</param>
/// <returns>Route information</returns>
private AttributeRouteInfo ProcessAttributeRoute(ControllerActionDescriptor action)
{
var constraint = action.RouteConstraints
.FirstOrDefault(c => c.RouteKey == AttributeRouting.RouteGroupKey);
if (constraint == null ||
constraint.KeyHandling != RouteKeyHandling.RequireKey ||
constraint.RouteValue == null)
{
// This can happen if an ActionDescriptor has a route template, but doesn't have one of our
// special route group constraints. This is a good indication that the user is using a 3rd party
// routing system, or has customized their ADs in a way that we can no longer understand them.
//
// We just treat this case as an 'opt-out' of our attribute routing system.
return null;
}
var template = TemplateParser.Parse(action.AttributeRouteInfo.Template);
var info = new AttributeRouteInfo
{
Constraints = GetConstraints(action.AttributeRouteInfo.Template, template),
Defaults = GetDefaults(action, template),
Optional = new List<string>(),
Order = action.AttributeRouteInfo.Order,
Precedence = AttributeRoutePrecedence.Compute(template),
};
_parser.Parse(template, info);
return info;
}
public AttributeRouteInfoValues(AttributeRouteInfo inner)
{
Template = inner?.Template;
Order = inner?.Order;
Name = inner?.Name;
}