gistfile1.clj

(def get-var
  (memoize
   (fn [ns sym]
     (let [path (str (s/replace ns "." "/") "/" sym ".clj")
           f (io/as-file (io/resource path))]
       (when (not (nil? f))
         (load-string (slurp f))
         (when-let [s (find-var (symbol (str ns "/" sym)))]
           (var-get s)))))))

;; Used as to get a topology var defined in the file resources/topologies/<name> 
(defn get-topology
  [name]
  (get-var (str "topologies." name) "topology"))