/// <summary>
/// Find all RESTRoute decorated methods of a resource and add them as routes.
/// The cache owns the resource now. Be sure to call SortRoutes when you are finished
/// Add()ing them.
/// </summary>
/// Note: This method does not set RESTResource.Server
///
internal void Add( RESTResource resource )
{
// Create a route cache Entry for each valid RESTRoute attribute found
foreach (MethodInfo mi in resource.GetType().GetMethods())
{
if (!mi.IsStatic && mi.GetCustomAttributes(true).Any(attr => attr is RESTRoute))
{
foreach (var attr in mi.GetCustomAttributes(true))
{
RESTRoute routeAttr = (RESTRoute)attr;
var regex = new Regex(routeAttr.PathInfo, RegexOptions.IgnoreCase | RegexOptions.Compiled);
var httpMethod = routeAttr.Method.ToString();
int priority = routeAttr.Priority;
_routes.Add( new Entry( resource, mi, regex, httpMethod, priority ) );
}
}
}
}
/// <summary>
/// Manually register a rest resource. The resource will be adopted by this class.
/// </summary>
/// <example>
/// server = new RESTServer( Config { AutoLoadRestResource = false; } );
/// server.AddResource( new MyRestResource() );
/// server.Start();
/// </example>
public void AddResource( RESTResource resource )
{
_routeCache.Add( resource );
}
internal Entry(RESTResource resource, MethodInfo methodInfo, Regex regex, string httpMethod, int priority)
{
this.RESTResource = resource;
this.MethodInfo = methodInfo;
this.Regex = regex;
this.HttpMethod = httpMethod;
this.Priority = priority;
}
//
// todo: I don't like multiple out parameters, but I don't like special "result"
// data structures either. Hmm.
//
internal bool FindRoute(HttpListenerContext context, out RESTResource resource, out MethodInfo method, out Match match)
{
var httpMethod = context.Request.HttpMethod.ToUpper();
string url = HttpUtility.UrlDecode( context.Request.Url.AbsolutePath );
foreach (Entry route in _routes)
{
if (route.Match(url, httpMethod, out match))
{
method = route.MethodInfo;
resource = route.RESTResource;
return true;
}
}
match = null; // out parameters must be set
resource = null;
method = null;
return false;
}