rename async to a

src/route.rs

@@ -0,0 +1,88 @@
+use http::Method;
+use futures::Future;
+
+use error::Error;
+use pred::{self, Predicate};
+use handler::{Reply, Handler, FromRequest, RouteHandler, AsyncHandler, WrapHandler};
+use httpcodes::HTTPNotFound;
+use httprequest::HttpRequest;
+use httpresponse::HttpResponse;
+
+
+/// Resource route definition
+///
+/// Route uses builder-like pattern for configuration.
+/// If handler is not explicitly set, default *404 Not Found* handler is used.
+pub struct Route<S> {
+    preds: Vec<Box<Predicate<S>>>,
+    handler: Box<RouteHandler<S>>,
+}
+
+impl<S: 'static> Default for Route<S> {
+
+    fn default() -> Route<S> {
+        Route {
+            preds: Vec::new(),
+            handler: Box::new(WrapHandler::new(|_| HTTPNotFound)),
+        }
+    }
+}
+
+impl<S: 'static> Route<S> {
+
+    pub(crate) fn check(&self, req: &mut HttpRequest<S>) -> bool {
+        for pred in &self.preds {
+            if !pred.check(req) {
+                return false
+            }
+        }
+        true
+    }
+
+    pub(crate) fn handle(&self, req: HttpRequest<S>) -> Reply {
+        self.handler.handle(req)
+    }
+
+    /// Add match predicate to route.
+    pub fn p(&mut self, p: Box<Predicate<S>>) -> &mut Self {
+        self.preds.push(p);
+        self
+    }
+
+    /// Add predicates to route.
+    pub fn predicates<P>(&mut self, preds: P) -> &mut Self
+        where P: IntoIterator<Item=Box<Predicate<S>>>
+    {
+        self.preds.extend(preds.into_iter());
+        self
+    }
+
+    /// Add method check to route. This method could be called multiple times.
+    pub fn method(&mut self, method: Method) -> &mut Self {
+        self.preds.push(pred::Method(method));
+        self
+    }
+
+    /// Set handler object. Usually call to this method is last call
+    /// during route configuration, because it does not return reference to self.
+    pub fn h<H: Handler<S>>(&mut self, handler: H) {
+        self.handler = Box::new(WrapHandler::new(handler));
+    }
+
+    /// Set handler function. Usually call to this method is last call
+    /// during route configuration, because it does not return reference to self.
+    pub fn f<F, R>(&mut self, handler: F)
+        where F: Fn(HttpRequest<S>) -> R + 'static,
+              R: FromRequest + 'static,
+    {
+        self.handler = Box::new(WrapHandler::new(handler));
+    }
+
+    /// Set async handler function.
+    pub fn a<F, R>(&mut self, handler: F)
+        where F: Fn(HttpRequest<S>) -> R + 'static,
+              R: Future<Item=HttpResponse, Error=Error> + 'static,
+    {
+        self.handler = Box::new(AsyncHandler::new(handler));
+    }
+}