Feature 10926 - Subscription feature for SOL003 VNF-LCM

Added the subscription and notification implementation code
for SOL003 Life cycle management interface

Change-Id: Id73f83f4bf1bbbd07f0b3844a9a89442f8cdfb95
Signed-off-by: selvi.j <selvi.j@tataelxsi.co.in>
diff --git a/osm_nbi/validation.py b/osm_nbi/validation.py
index 3373b84..3fec364 100644
--- a/osm_nbi/validation.py
+++ b/osm_nbi/validation.py
@@ -1309,6 +1309,63 @@
     "required": ["CallbackUri"],
 }
 
+vnflcmsub_schema = {
+    "title": "vnflcmsubscription input schema",
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "type": "object",
+    "properties": {
+        "VnfInstanceSubscriptionFilter": {
+            "type": "object",
+            "properties": {
+                "vnfdIds": {"type": "array"},
+                "vnfInstanceIds": {"type": "array"},
+            },
+        },
+        "notificationTypes": {
+            "type": "array",
+            "items": {
+                "enum": [
+                    "VnfIdentifierCreationNotification",
+                    "VnfLcmOperationOccurrenceNotification",
+                    "VnfIdentifierDeletionNotification"
+                    ]
+            }
+        },
+        "operationTypes": {
+            "type": "array",
+            "items": {
+                "enum": [
+                    "INSTANTIATE", "SCALE", "SCALE_TO_LEVEL", "CHANGE_FLAVOUR", "TERMINATE",
+                    "HEAL", "OPERATE", "CHANGE_EXT_CONN", "MODIFY_INFO", "CREATE_SNAPSHOT",
+                    "REVERT_TO_SNAPSHOT", "CHANGE_VNFPKG"
+                    ]
+            }
+        },
+        "operationStates": {
+            "type": "array",
+            "items": {
+                "enum": [
+                    "STARTING", "PROCESSING", "COMPLETED", "FAILED_TEMP", "FAILED",
+                    "ROLLING_BACK", "ROLLED_BACK"
+                    ]
+            }
+        }
+    },
+    "required": ["VnfInstanceSubscriptionFilter", "notificationTypes"]
+ }
+
+vnf_subscription = {
+    "title": "vnf subscription input schema",
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "type": "object",
+    "properties": {
+        "filter": vnflcmsub_schema,
+        "CallbackUri": description_schema,
+        "authentication": authentication_schema
+    },
+    "required": ["filter", "CallbackUri"]
+}
+
 
 class ValidationError(Exception):
     def __init__(self, message, http_code=HTTPStatus.UNPROCESSABLE_ENTITY):