Add notification system util in GVNFM

Change-Id: I1489722e30121aebb69b524cdaafaa44729784a2
Signed-off-by: Bharath Thiruveedula<bharath.thiruveedula@verizon.com>
Issue-ID: VFC-1096

3 files changed, 131 insertions, 30 deletions

diff --git a/lcm/lcm/nf/serializers/lccn_filter_data.py b/lcm/lcm/nf/serializers/lccn_filter_data.py
index 547ba094..b016a4f0 100644
--- a/lcm/lcm/nf/serializers/lccn_filter_data.py
+++ b/lcm/lcm/nf/serializers/lccn_filter_data.py
@@ -15,34 +15,7 @@
 from rest_framework import serializers
 
 from vnf_instance_subscription_filter import VnfInstanceSubscriptionFilter
-
-
-NOTIFICATION_TYPES = [
-    "VnfLcmOperationOccurrenceNotification",
-    "VnfIdentifierCreationNotification",
-    "VnfIdentifierDeletionNotification"]
-
-LCM_OPERATION_TYPES = [
-    "INSTANTIATE",
-    "SCALE",
-    "SCALE_TO_LEVEL",
-    "CHANGE_FLAVOUR",
-    "TERMINATE",
-    "HEAL",
-    "OPERATE",
-    "CHANGE_EXT_CONN",
-    "MODIFY_INFO"
-]
-
-LCM_OPERATION_STATE_TYPES = [
-    "STARTING",
-    "PROCESSING",
-    "COMPLETED",
-    "FAILED_TEMP",
-    "FAILED",
-    "ROLLING_BACK",
-    "ROLLED_BACK"
-]
+from lcm.nf.const import NOTIFICATION_TYPES, LCM_OPERATION_TYPES, LCM_OPERATION_STATE_TYPES
 
 
 class LifeCycleChangeNotificationsFilter(serializers.Serializer):
diff --git a/lcm/lcm/nf/serializers/notification_types.py b/lcm/lcm/nf/serializers/notification_types.py
new file mode 100644
index 00000000..5ee5eb03
--- /dev/null
+++ b/lcm/lcm/nf/serializers/notification_types.py
@@ -0,0 +1,128 @@
+# Copyright (C) 2018 Verizon. All Rights Reserved
+#
+# 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.
+
+from rest_framework import serializers
+
+from affected_vnfcs import AffectedVnfcsSerializer
+from affected_vls import AffectedVLsSerializer
+from affected_storages import AffectedStoragesSerializer
+from lcm.nf.const import LCM_OPERATION_TYPES, LCM_OPERATION_STATE_TYPES
+from link import LinkSerializer
+from response import ProblemDetailsSerializer
+from ext_virtual_link_info import ExtVirtualLinkInfoSerializer
+from vnf_info_modifications import VnfInfoModificationsSerializer
+
+
+class LinksSerializer(serializers.Serializer):
+    vnfInstance = LinkSerializer(
+        help_text="Link to the resource representing the VNF instance to "
+        "which the notified change applies.",
+        required=True,
+        allow_null=False)
+    subscription = LinkSerializer(
+        help_text="Link to the related subscription.",
+        required=True,
+        allow_null=False)
+    vnfLcmOpOcc = LinkSerializer(
+        help_text="Link to the VNF lifecycle management operation"
+        "occurrence that this notification is related to. Shall be"
+        "present if there is a related lifecycle operation occurance.",
+        required=False,
+        allow_null=False)
+
+
+class VnfLcmOperationOccurrenceNotification(serializers.Serializer):
+    id = serializers.CharField(
+        help_text="Identifier of this notification",
+        max_length=255,
+        required=True,
+        allow_null=False)
+    notificationType = serializers.CharField(
+        help_text="Type of the notification",
+        max_length=50,
+        required=True,
+        allow_null=False)
+    subscriptionId = serializers.CharField(
+        help_text="Identifier for the subscription",
+        required=False)
+    timeStamp = serializers.CharField(
+        help_text="Date-time of the generation of the notification.",
+        required=True)
+    notificationStatus = serializers.ChoiceField(
+        help_text="Indicates whether this notification reports about the start"
+        "of a lifecycle operation or the result of a lifecycle"
+        "operation",
+        choices=["START", "RESULT"],
+        required=True)
+    operationState = serializers.ChoiceField(
+        choices=LCM_OPERATION_STATE_TYPES,
+        help_text="The state of the VNF LCM operation occurrence. ",
+        required=True)
+    vnfInstanceId = serializers.CharField(
+        help_text="The identifier of the VNF instance affected. ",
+        required=True)
+    operation = serializers.ChoiceField(
+        help_text="The lifecycle management operation.",
+        required=True,
+        choices=LCM_OPERATION_TYPES)
+    isAutomaticInvocation = serializers.BooleanField(
+        help_text="Set to true if this VNF LCM operation occurrence has"
+        "been triggered by an automated procedure inside the"
+        "VNFM. Otherwise False",
+        required=True)
+    vnfLcmOpOccId = serializers.CharField(
+        help_text="The identifier of the VNF lifecycle management"
+        "operation occurrence associated to the notification.",
+        required=True)
+    affectedVnfcs = AffectedVnfcsSerializer(
+        help_text="Information about VNFC instances that were affected " +
+        "during the lifecycle operation.",
+        required=False,
+        many=True
+    )
+    affectedVirtualLinks = AffectedVLsSerializer(
+        help_text="Information about VL instances that were affected " +
+        "during the lifecycle operation. ",
+        required=False,
+        many=True
+    )
+    affectedVirtualStorages = AffectedStoragesSerializer(
+        help_text="Information about virtualised storage instances that " +
+        "were affected during the lifecycle operation",
+        required=False,
+        many=True
+    )
+    changedInfo = VnfInfoModificationsSerializer(
+        help_text="Information about the changed VNF instance information, " +
+        "including VNF configurable properties",
+        required=False,
+        allow_null=True)
+    changedExtConnectivity = ExtVirtualLinkInfoSerializer(
+        help_text="Information about changed external connectivity, if this " +
+        "notification represents the result of a lifecycle operation occurrence. " +
+        "Shall be present if the 'notificationStatus' is set to 'RESULT' and the " +
+        "'operation' is set to 'CHANGE_EXT_CONN'. Shall be absent otherwise.",
+        many=True,
+        required=False,
+        allow_null=True)
+    error = ProblemDetailsSerializer(
+        help_text="If 'operationState' is 'FAILED_TEMP' or 'FAILED' or " +
+        "'PROCESSING' or 'ROLLING_BACK' and previous value of 'operationState' " +
+        "was 'FAILED_TEMP'  this attribute shall be present ",
+        allow_null=True,
+        required=False
+    )
+    _links = LinksSerializer(
+        help_text="Links to resources related to this resource.",
+        required=True)
diff --git a/lcm/lcm/nf/serializers/vnf_lcm_op_occ.py b/lcm/lcm/nf/serializers/vnf_lcm_op_occ.py
index f2ef664d..a2b50196 100644
--- a/lcm/lcm/nf/serializers/vnf_lcm_op_occ.py
+++ b/lcm/lcm/nf/serializers/vnf_lcm_op_occ.py
@@ -18,6 +18,7 @@ from rest_framework import serializers
 from affected_vnfcs import AffectedVnfcsSerializer
 from affected_vls import AffectedVLsSerializer
 from affected_storages import AffectedStoragesSerializer
+from link import LinkSerializer
 from response import ProblemDetailsSerializer
 from ext_virtual_link_info import ExtVirtualLinkInfoSerializer
 from vnf_info_modifications import VnfInfoModificationsSerializer
@@ -68,9 +69,8 @@ class ResourceChangesSerializer(serializers.Serializer):
 
 
 class LcmOpLinkSerializer(serializers.Serializer):
-    self = serializers.CharField(
+    self = LinkSerializer(
         help_text="URI of this resource.",
-        max_length=255,
         required=True,
         allow_null=False)
     vnfInstance = serializers.CharField(