Query data NCMP-Operational with CPSpath

New GET Endpoint: /v1/ch/{cm-handle}/data/ds/{ncmp-datastore-name}/query?cps-path={CPSPath}
Implemented error for {ncmp-datastore-name} other than operational
- (Toine) Refactored and renamed (abstract) handler for better re-use
Mainly by introducing a separate handler for OperationalQuery

Reviewers Toine, Sourabh, Priyank

Issue-ID: CPS-1002
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: Iaca018869d95d4ce800072431baa190050a6dad0
diff --git a/cps-ncmp-rest/docs/openapi/components.yaml b/cps-ncmp-rest/docs/openapi/components.yaml
index 7ca09ce..b4b8c84 100644
--- a/cps-ncmp-rest/docs/openapi/components.yaml
+++ b/cps-ncmp-rest/docs/openapi/components.yaml
@@ -456,11 +456,16 @@
     cpsPathInQuery:
       name: cps-path
       in: query
-      description: cps-path
+      description: For more details on cps path, please refer https://docs.onap.org/projects/onap-cps/en/latest/cps-path.html
       required: false
       schema:
         type: string
         default: /
+      examples:
+        container cps path:
+          value: //bookstore
+        list attributes cps path:
+          value: //categories[@code=1]
     dmiPluginIdentifierInQuery:
       name: dmi-plugin-identifier
       in: query
@@ -527,7 +532,7 @@
         default: application/json
         example: application/yang-data+json
     datastoreName:
-      name: ncmp-datastore-name
+      name: datastore-name
       in: path
       description: The type of the requested data
       required: true