Add interfaces for Route and Handler

src/pjdietz/WellRESTed/Handler.php

@@ -15,8 +15,15 @@ namespace pjdietz\WellRESTed;
  *
  * @property-read Response response The Response to the request
  */
-abstract class Handler
+abstract class Handler implements HandlerInterface
 {
+    /**
+     * Matches array from the preg_match() call used to find this Handler.
+     *
+     * @var array
+     */
+    protected $args;
+
     /**
      * The HTTP request to respond to.
      *
@@ -31,32 +38,6 @@ abstract class Handler
      */
     protected $response;
 
-    /**
-     * Matches array from the preg_match() call used to find this Handler.
-     *
-     * @var array
-     */
-    protected $args;
-
-    /**
-     * Create a new Handler for a specific request.
-     *
-     * @param Request $request
-     * @param array $args
-     */
-    public function __construct($request, $args = null)
-    {
-        $this->request = $request;
-
-        if (is_null($args)) {
-            $args = array();
-        }
-        $this->args = $args;
-
-        $this->response = new Response();
-        $this->buildResponse();
-    }
-
     // -------------------------------------------------------------------------
     // Accessors
 
@@ -75,6 +56,38 @@ abstract class Handler
         return null;
     }
 
+    /**
+     * @param array $args
+     */
+    public function setArguments(array $args)
+    {
+        $this->args = $args;
+    }
+
+    /**
+     * @return array
+     */
+    public function getArguments()
+    {
+        return $this->args;
+    }
+
+    /**
+     * @param \pjdietz\WellRESTed\Request $request
+     */
+    public function setRequest($request)
+    {
+        $this->request = $request;
+    }
+
+    /**
+     * @return \pjdietz\WellRESTed\Request
+     */
+    public function getRequest()
+    {
+        return $this->request;
+    }
+
     /**
      * Return the instance's Reponse
      *
@@ -82,6 +95,8 @@ abstract class Handler
      */
     public function getResponse()
     {
+        $this->response = new Response();
+        $this->buildResponse();
         return $this->response;
     }
 

src/pjdietz/WellRESTed/HandlerInterface.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace pjdietz\WellRESTed;
+
+interface HandlerInterface
+{
+    public function getRequest();
+    public function setRequest($request);
+    public function getArguments();
+    public function setArguments(array $args);
+    public function getResponse();
+}

src/pjdietz/WellRESTed/Route.php

@@ -15,7 +15,7 @@ use \Exception;
 /**
  * A Route connects a URI pattern to a Handler.
  */
-class Route
+class Route implements RouteInterface
 {
     /**
      * Regular expression matching URL friendly characters (i.e., letters,
@@ -47,14 +47,14 @@ class Route
      *
      * @var string
      */
-    public $pattern;
+    private $pattern;
 
     /**
      * Name of the Handler class to use
      *
      * @var string
      */
-    public $handler;
+    private $handler;
 
     /**
      * Create a new Route
@@ -68,6 +68,38 @@ class Route
         $this->handler = $handler;
     }
 
+    /**
+     * @param string $handler
+     */
+    public function setHandler($handler)
+    {
+        $this->handler = $handler;
+    }
+
+    /**
+     * @return string
+     */
+    public function getHandler()
+    {
+        return $this->handler;
+    }
+
+    /**
+     * @param string $pattern
+     */
+    public function setPattern($pattern)
+    {
+        $this->pattern = $pattern;
+    }
+
+    /**
+     * @return string
+     */
+    public function getPattern()
+    {
+        return $this->pattern;
+    }
+
     /**
      * Create a new Route using a URI template to generate the pattern.
      *

src/pjdietz/WellRESTed/RouteInterface.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace pjdietz\WellRESTed;
+
+/**
+ * Interface for a route to relate a pattern for matching a URI to a handler class.
+ */
+interface RouteInterface
+{
+    /**
+     * Return the regex pattern used to match the URI
+     *
+     * @return string
+     */
+    public function getPattern();
+
+    /**
+     * Provide a regex pattern that matches the URI
+     *
+     * @para string $pattern
+     */
+    public function setPattern($pattern);
+
+    /**
+     * Return the name of the class the route will dispatch.
+     *
+     * @return string
+     */
+    public function getHandler();
+
+    /**
+     * Provide the classname to instantiate to handle the route.
+     *
+     * @param string $className
+     */
+    public function setHandler($className);
+}

src/pjdietz/WellRESTed/Router.php

@@ -36,9 +36,9 @@ class Router
     /**
      * Append a new Route instance to the Router's route table.
      *
-     * @param Route $route
+     * @param RouteInterface $route
      */
-    public function addRoute(Route $route)
+    public function addRoute(RouteInterface $route)
     {
         $this->routes[] = $route;
     }
@@ -58,10 +58,15 @@ class Router
         $path = $request->path;
 
         foreach ($this->routes as $route) {
-            if (preg_match($route->pattern, $path, $matches)) {
-                if (is_subclass_of($route->handler, '\pjdietz\WellRESTed\Handler')) {
-                    $handler = new $route->handler($request, $matches);
-                    return $handler->response;
+            /** @var RouteInterface $route */
+            if (preg_match($route->getPattern(), $path, $matches)) {
+                $handlerClassName = $route->getHandler();
+                if (is_subclass_of($handlerClassName, '\pjdietz\WellRESTed\HandlerInterface')) {
+                    /** @var HandlerInterface $handler */
+                    $handler = new $handlerClassName();
+                    $handler->setRequest($request);
+                    $handler->setArguments($matches);
+                    return $handler->getResponse();
                 } else {
                     return $this->getNoRouteResponse($request);
                 }