Initial Commit of Chameleon

Commit the initial set of code for the Chameleon offering to ONAP

Change-Id: Ia58bd49eafc0a3702c17c9cab34d666ed1627ba5
Issue-ID: AAI-797
Signed-off-by: Adrian Batos-Parac <adrian.batos-parac@amdocs.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/chameleon/handler.clj b/src/chameleon/handler.clj
new file mode 100644
index 0000000..7a4a5fe
--- /dev/null
+++ b/src/chameleon/handler.clj
@@ -0,0 +1,61 @@
+(ns chameleon.handler
+  (:require [chameleon.route :as c-route]
+            [chameleon.aai-processor]
+            [utilis.map :refer [map-vals compact]]
+            [liberator.core :refer [defresource]]
+            [compojure.core :refer [GET PUT PATCH ANY defroutes]]
+            [compojure.route :refer [resources]]
+            [ring.util.response :refer [resource-response content-type]]
+            [ring.middleware.defaults :refer [wrap-defaults api-defaults]]
+            [ring.middleware.anti-forgery :refer [wrap-anti-forgery]]
+            [ring.middleware.session :refer [wrap-session]]
+            [cheshire.core :as json]
+            [clj-time.format :as tf]
+            [integrant.core :as ig]))
+
+(declare handler)
+
+(defonce ^:private g-host (atom nil))
+
+(defmethod ig/init-key :chameleon/handler  [_ {:keys [gallifrey-host]}]
+  (reset! g-host gallifrey-host)
+  handler)
+
+(defmethod ig/halt-key! :chameleon/handler  [_ _]
+  (reset! g-host nil))
+
+(declare serialize de-serialize)
+
+(defresource entity-endpoint [id]
+  :allowed-methods [:get]
+  :available-media-types ["application/json"]
+  :exists? (fn [ctx]
+             (let [resource (-> (c-route/query @g-host id (-> ctx :request :params :t-k)))]
+               (when (= (:status resource) 200)
+                 {::resource (-> resource :body json/parse-string (dissoc "_meta") (chameleon.aai-processor/from-gallifrey))})))
+  :existed? (fn [ctx]
+              (when-let [status (-> (c-route/query @g-host id (-> ctx :request :params :t-k)) :status)]
+                (= status 410)))
+  :handle-ok ::resource)
+
+(defroutes app-routes
+  (GET "/entity/:id" [id] (entity-endpoint id))
+  (resources "/"))
+
+(def handler
+  (-> app-routes
+      (wrap-defaults api-defaults)))
+
+
+;;; Implementation
+
+(defn- serialize
+  [e]
+  (compact
+   (update e :_meta #(map-vals
+                      (fn [m]
+                        (map-vals str m)) %))))
+
+(defn- de-serialize
+  [e]
+  e)