Implement tenants API for newton

Change-Id: Ic2060927803b0d34dbf54c95430ab558bc4f076d
Issue-Id: MULTIVIM-19
Signed-off-by: Bin Yang <bin.yang@windriver.com>

2 files changed, 86 insertions, 1 deletions

diff --git a/newton/newton/requests/views/tenants.py b/newton/newton/requests/views/tenants.py
new file mode 100644
index 00000000..e9d5428f
--- /dev/null
+++ b/newton/newton/requests/views/tenants.py
@@ -0,0 +1,80 @@
+# Copyright (c) 2017 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import logging
+import json
+
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from newton.pub.exceptions import VimDriverNewtonException
+
+from util import VimDriverUtils
+
+logger = logging.getLogger(__name__)
+
+DEBUG=True
+
+class Tenants(APIView):
+    service = {'service_type': 'identity',
+               'interface': 'public',
+               'region_name': 'RegionOne'}
+    keys_mapping = [
+        ("projects", "tenants"),
+    ]
+
+    def get(self, request, vimid=""):
+        logger.debug("Tenants--get::> %s" % request.data)
+        try:
+            #prepare request resource to vim instance
+            query = VimDriverUtils.get_query_part(request)
+
+            vim = VimDriverUtils.get_vim_info(vimid)
+            if '/v2' in vim["url"]:
+                req_resouce = "/v2.0/tenants"
+            elif '/v3' in vim["url"]:
+                req_resouce = "/v3/projects"
+            else:
+                req_resouce = "/v3/projects"
+
+            sess = VimDriverUtils.get_session(vim)
+            resp = sess.get(req_resouce, endpoint_filter=self.service)
+            content = resp.json()
+            vim_dict = {
+                "vimName": vim["name"],
+                "vimId": vim["vimId"],
+            }
+            content.update(vim_dict)
+
+            VimDriverUtils.replace_key_by_mapping(content,
+                                                    self.keys_mapping)
+
+            if query:
+               _, tenantname = query.split('=')
+               if tenantname:
+                   tmp=content["tenants"]
+                   content["tenants"] = []
+                   # convert the key naming in hosts
+                   for tenant in tmp:
+                       if tenantname == tenant['name']:
+                           content["tenants"].append(tenant)
+
+
+            return Response(data=content, status=resp.status_code)
+        except VimDriverNewtonException as e:
+            return Response(data={'error': e.content}, status=e.status_code)
+        except Exception as e:
+            return Response(data={'error': str(e)},
+                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
diff --git a/newton/newton/urls.py b/newton/newton/urls.py
index ad2979ff..e831feb6 100644
--- a/newton/newton/urls.py
+++ b/newton/newton/urls.py
@@ -13,13 +13,18 @@ from django.conf.urls import include, url
 from newton.pub.config.config \
     import REG_TO_MSB_WHEN_START, REG_TO_MSB_REG_URL, REG_TO_MSB_REG_PARAM
 
+from newton.requests.views import tenants
+
 urlpatterns = [
     url(r'^', include('newton.swagger.urls')),
     url(r'^', include('newton.samples.urls')),
+    url(r'^openoapi/multivim-newton/v1/(?P<vimid>[0-9a-zA-Z_-]+)/tenants$',
+             tenants.Tenants.as_view()),
     url(r'^openoapi/multivim-newton/v1/(?P<vimid>[0-9a-zA-Z_-]+)/'
-        '(?P<tenantid>[0-9a-zA-Z_-]+)/', include('newton.requests.urls')),
+        '(?P<tenantid>[0-9a-zA-Z_-]{8,})/', include('newton.requests.urls')),
 ]
 
+
 # regist to MSB when startup
 if REG_TO_MSB_WHEN_START:
     import json