LCM events RTD

Issue-ID: CPS-1165
Signed-off-by: emaclee <lee.anjella.macabuhay@est.tech>
Change-Id: Ib6743bc73b260b4345a1bedf0de2ef892a6b3c87

3 files changed, 246 insertions, 1 deletions

diff --git a/docs/cps-events.rst b/docs/cps-events.rst
new file mode 100644
index 0000000000..a28d4b0529
--- /dev/null
+++ b/docs/cps-events.rst
@@ -0,0 +1,138 @@
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+.. Copyright (C) 2022 Nordix Foundation
+
+.. DO NOT CHANGE THIS LABEL FOR RELEASE NOTES - EVEN THOUGH IT GIVES A WARNING
+.. _cpsEvents:
+
+CPS Events
+##########
+
+CPS Core
+********
+..
+   Cps core events yet to be written
+
+
+CPS-NCMP
+********
+
+Lifecycle Management (LCM) Event
+================================
+
+
+Overview
+--------
+Lifecycle management events are published as cm handle state transitions from one state to another.
+
+
+LCM events and state handler
+----------------------------
+The LCM events are triggered under the state handler which has the following responsibilities:
+
+#. Updating and persisting cm handle state based on the target state of the cm handle
+
+#. Create and calls to publish the LCM event based on the cm handle state transition that occured
+
+	**3 possible event types:**
+
+	* Create
+	* Update
+	* Delete
+
+
+
+LCM Event Schema
+----------------
+The current published LCM event is based on the following schema:
+
+:download:`Life cycle management event schema <schemas/lcm-event-schema-v1.json>`
+
+LCM Event structure
+-------------------
+
+Events header
+^^^^^^^^^^^^^
+*Event header prototype for all event types*
+
+.. code-block:: json
+
+	{
+  		"eventId"                : "00001",
+  		"eventCorrelationId      : "cmhandle-001",
+  		"eventTime"              : "2021-11-16T16:42:25-04:00",
+  		"eventSource"            : "org.onap.ncmp",
+  		"eventType"              : "org.onap.ncmp.cmhandle-lcm-event.create",
+  		"eventSchema"            : "org.onap.ncmp:cmhandle-lcm-event",
+  		"eventSchemaVersion"	   : "1.0"
+  		"event": ....
+	}
+
+Events payload
+^^^^^^^^^^^^^^
+Event payload varies based on the type of event.
+
+**CREATE**
+
+Event payload for this event contains the properties of the new cm handle created.
+
+*Create event payload prototype*
+
+.. code-block:: json
+
+  "event": {
+         "cmHandleId" : "cmhandle-001",
+         "newValues" : {
+             "cmHandleState"  : "ADVISED",
+             "dataSyncEnabled" : "TRUE",
+             "cmhandleProperties" : [
+                          "prop1" : "val1",
+                          "prop2" : "val2"
+                ]
+            }
+       }
+   }
+
+
+**UPDATE**
+
+Event payload for this event contains the difference in state and properties of the cm handle.
+
+*Update event payload prototype*
+
+.. code-block:: json
+
+  "event": {
+         "cmHandleId" : "cmhandle-001",
+         "oldValues" : {
+                 "cmHandleState"  : "ADVISED",
+                 "dataSyncEnabled" : "FALSE",
+                 "cmhandleProperties" : [
+                          "prop1" : "val1",
+                          "prop2" : "val2",
+              }
+          "newValues" : {
+             "cmHandleState"  : "READY",
+             "dataSyncEnabled" : "TRUE",
+             "cmhandleProperties" : [
+                          "prop1" : "updatedval1",
+                          "prop2" : "updatedval2"
+                   ]
+            }
+       }
+   }
+
+
+**DELETE**
+
+Event payload for this event contains the identifier of the deleted cm handle.
+
+*Delete event payload prototype*
+
+.. code-block:: json
+
+  "event": {
+         "cmHandleId" : "cmhandle-001",
+   }
+
+
diff --git a/docs/index.rst b/docs/index.rst
index eaf36466f4..df4ea95185 100755
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,6 +1,6 @@
 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
 .. http://creativecommons.org/licenses/by/4.0
-.. Copyright (C) 2021 Nordix Foundation
+.. Copyright (C) 2021-2022 Nordix Foundation
 
 .. DO NOT CHANGE THIS LABEL FOR RELEASE NOTES - EVEN THOUGH IT GIVES A WARNING
 .. _master_index:
@@ -22,6 +22,7 @@ CPS Core
    admin-guide.rst
    design.rst
    modeling.rst
+   cps-events.rst
    deployment.rst
    release-notes.rst
 
diff --git a/docs/schemas/lcm-event-schema-v1.json b/docs/schemas/lcm-event-schema-v1.json
new file mode 100644
index 0000000000..97c0fbee22
--- /dev/null
+++ b/docs/schemas/lcm-event-schema-v1.json
@@ -0,0 +1,106 @@
+{
+
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "urn:cps:org.onap.ncmp.cmhandle.lcm-event:v1",
+
+  "$ref": "#/definitions/LcmEvent",
+
+  "definitions": {
+
+    "Values": {
+      "description": "Values that represents the state of a cmHandle",
+      "type": "object",
+      "properties": {
+        "dataSyncEnabled":{
+          "description": "Whether data sync enabled",
+          "type": "boolean"
+        },
+        "cmHandleState": {
+          "description": "State of cmHandle",
+          "type": "string",
+          "enum": ["ADVISED", "READY", "LOCKED", "DELETING", "DELETED"]
+        },
+        "cmHandleProperties": {
+          "description": "cmHandle properties",
+          "type": "object",
+          "default": null,
+          "existingJavaType": "java.util.List<java.util.Map<String,String>>",
+          "additionalProperties": false
+        }
+      },
+      "additionalProperties": false
+    },
+
+    "Event": {
+      "description": "The Payload of an event",
+      "type": "object",
+      "properties": {
+        "cmHandleId": {
+          "description": "cmHandle id",
+          "type": "string"
+        },
+        "oldValues": {
+          "$ref": "#/definitions/Values"
+        },
+        "newValues": {
+          "$ref": "#/definitions/Values"
+        }
+      },
+      "required": [
+        "cmHandleId"
+      ],
+      "additionalProperties": false
+    },
+
+    "LcmEvent": {
+      "description": "The payload for LCM event",
+      "type": "object",
+      "javaType" : "org.onap.ncmp.cmhandle.event.lcm.LcmEvent",
+      "properties": {
+        "eventId": {
+          "description": "The unique id identifying the event",
+          "type": "string"
+        },
+        "eventCorrelationId": {
+          "description": "The id identifying the event",
+          "type": "string"
+        },
+        "eventTime": {
+          "description": "The timestamp when original event occurred",
+          "type": "string"
+        },
+        "eventSource": {
+          "description": "The source of the event",
+          "type": "string"
+        },
+        "eventType": {
+          "description": "The type of the event",
+          "type": "string"
+        },
+        "eventSchema": {
+          "description": "The schema that this event adheres to",
+          "type": "string"
+        },
+        "eventSchemaVersion": {
+          "description": "The version of the schema that this event adheres to",
+          "type": "string"
+        },
+        "event": {
+          "$ref": "#/definitions/Event"
+        }
+      },
+      "required": [
+        "eventId",
+        "eventCorrelationId",
+        "eventTime",
+        "eventSource",
+        "eventType",
+        "eventSchema",
+        "eventSchemaVersion",
+        "event"
+      ],
+      "additionalProperties": false
+    }
+
+  }
+}