Migrate get vim_types to new framework

A simple comparison between new framework and old framework can
be found at [1]. In a high concurrent situation, new framwork
is 24 times faster than old one. Since get vim_types is less
overhead, result in [1] is more convincing to just compare frameworks.

[1] https://paste.ubuntu.com/p/Nc5WTgsKNP/

Change-Id: I0bd3ada0684cb20319895ced77d10d8593873eee
Issue-ID: MULTICLOUD-150
Signed-off-by: Hong Hui Xiao <honghui_xiao@yeah.net>

3 files changed, 23 insertions, 14 deletions

diff --git a/multivimbroker/multivimbroker/api_v2/api_router/v0_controller.py b/multivimbroker/multivimbroker/api_v2/api_router/v0_controller.py
index 83b4260..99c1b08 100644
--- a/multivimbroker/multivimbroker/api_v2/api_router/v0_controller.py
+++ b/multivimbroker/multivimbroker/api_v2/api_router/v0_controller.py
@@ -13,10 +13,10 @@
 import logging
 import pecan
 
-from multivimbroker.swagger import utils
 from multivimbroker.pub import exceptions
 from multivimbroker.pub.utils import restcall
 from multivimbroker.pub.utils import syscomm
+from multivimbroker.swagger import utils
 
 
 logger = logging.getLogger(__name__)
@@ -30,6 +30,10 @@ IDENTITY_AUTH_URI = "identity/v3/auth/tokens"
 
 class V0_Controller(object):
 
+    @pecan.expose('json')
+    def vim_types(self):
+        return syscomm.getVIMTypes()
+
     @pecan.expose('json', route="swagger.json")
     def swagger_json(self):
         return utils.get_swagger_json_data()
diff --git a/multivimbroker/multivimbroker/forwarder/views.py b/multivimbroker/multivimbroker/forwarder/views.py
index 83d3172..d1763c2 100644
--- a/multivimbroker/multivimbroker/forwarder/views.py
+++ b/multivimbroker/multivimbroker/forwarder/views.py
@@ -13,7 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import json
 
 from rest_framework.views import APIView
@@ -21,6 +20,7 @@ from rest_framework.views import Response
 from rest_framework.views import status
 from multivimbroker.forwarder.base import BaseHandler
 from multivimbroker.pub.utils.syscomm import originHeaders
+from multivimbroker.pub.utils import syscomm
 
 
 class BaseServer(BaseHandler, APIView):
@@ -85,18 +85,7 @@ class Extension(BaseServer):
 class VIMTypes(BaseServer):
 
     def get(self, request):
-        # Fix here unless we have plugin registry
-        json_file = os.path.join(os.path.dirname(__file__),
-                                 '../pub/config/provider-plugin.json')
-        with open(json_file, "r") as f:
-            plugins = json.load(f)
-        ret = []
-        for k, v in plugins.items():
-            item = {}
-            item["vim_type"] = v.get("vim_type")
-            item["versions"] = [k for k in v.get('versions', {})]
-            ret.append(item)
-        return Response(data=ret, status=status.HTTP_200_OK)
+        return Response(data=syscomm.getVIMTypes(), status=status.HTTP_200_OK)
 
 
 class CheckCapacity(BaseServer):
diff --git a/multivimbroker/multivimbroker/pub/utils/syscomm.py b/multivimbroker/multivimbroker/pub/utils/syscomm.py
index bd4bbb5..337a1bd 100644
--- a/multivimbroker/multivimbroker/pub/utils/syscomm.py
+++ b/multivimbroker/multivimbroker/pub/utils/syscomm.py
@@ -62,3 +62,19 @@ def getMultivimDriver(vimid, full_path=""):
     vim = get_vim_by_id(vimid)
     multclouddriver = findMultivimDriver(vim=vim)
     return re.sub(multcloud, multclouddriver, full_path)
+
+
+def getVIMTypes():
+        # Fix here unless we have plugin registry
+        json_file = os.path.join(os.path.dirname(__file__),
+                                 '../config/provider-plugin.json')
+        with open(json_file, "r") as f:
+            plugins = json.load(f)
+        ret = []
+        for k, v in plugins.items():
+            item = {}
+            item["vim_type"] = v.get("vim_type")
+            item["versions"] = [k for k in v.get('versions', {})]
+            ret.append(item)
+
+        return ret