API: Adding the stroage service stub

The storage service API will hold the equivelent information of the
StorageServiceMBean.

This adds the API with one stubed method the get local hostid.

After the patch the storage_service doc will be available at:
http://localhost:10000/api-doc/storage_service/

And the stubed local host id will be under:
http://localhost:10000/storage_service/local_hostid

and will return an empty string

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>

api/api-doc/storage_service.json

@@ -0,0 +1,29 @@
+{
+   "apiVersion":"0.0.1",
+   "swaggerVersion":"1.2",
+   "basePath":"{{Protocol}}://{{Host}}",
+   "resourcePath":"/storage_service",
+   "produces":[
+      "application/json"
+   ],
+   "apis":[
+      {
+         "path":"/storage_service/hostid/local",
+         "operations":[
+            {
+               "method":"GET",
+               "summary":"Returns the local host id",
+               "type":"string",
+               "nickname":"local_hostid",
+               "produces":[
+                  "application/json"
+               ],
+               "parameters":[
+                  {
+                  }
+               ]
+            }
+         ]
+      }
+   ]
+}

api/api.cc

@@ -4,13 +4,20 @@
 
 #include "api.hh"
 #include "http/api_docs.hh"
+#include "storage_service.hh"
 
 namespace api {
 
 future<> set_server(http_context& ctx) {
     auto rb = std::make_shared < api_registry_builder > ("api/api-doc/");
 
-    return ctx.http_server.set_routes(rb->set_api_doc());
+    return ctx.http_server.set_routes(rb->set_api_doc()).then([&ctx, rb] {
+        ctx.http_server.set_routes(rb->register_function("storage_service",
+                        "The storage service API"))
+        .then([&ctx] {
+            return set_storage_service(ctx);
+        });
+    });
 }
 
 }

api/storage_service.cc

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2015 Cloudius Systems
+ */
+
+#include "storage_service.hh"
+#include "api/api-doc/storage_service.json.hh"
+
+namespace api {
+
+future<> set_storage_service(http_context& ctx) {
+    return ctx.http_server.set_routes([] (routes& r) {
+        httpd::storage_service_json::local_hostid.set(r, [](const_req req) {
+            return "";
+        });
+    });
+}
+
+}

api/storage_service.hh

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2015 Cloudius Systems
+ */
+
+#ifndef API_STORAGE_SERVICE_HH_
+#define API_STORAGE_SERVICE_HH_
+
+#include "api.hh"
+
+namespace api {
+
+future<> set_storage_service(http_context& ctx);
+
+}
+
+#endif /* API_APP_HH_ */

configure.py

@@ -261,6 +261,8 @@ http = ['http/transformers.cc',
         ]
 
 api = ['api/api.cc',
+       'api/api-doc/storage_service.json',
+       'api/storage_service.cc',
        ]
 defines = []
 libs = '-laio -lboost_program_options -lboost_system -lstdc++ -lm -lboost_unit_test_framework -lboost_thread -lcryptopp -lrt'