Implementation of Data validation feature in Create a Node API

Added support to validate JSON/XML data without the need of persisting
it in the databse.
 - added "dryRunInQuery" flag as a new query parameter
 - added new method as part of CpsDataService layer to perform data
   validation
 - added new method in yang parser "validateData" to validate
   data without persisting it

Issue-ID: CPS-2361
Change-Id: I43dd33cc6120576d0fac606d5c4b0168d107311d
Signed-off-by: Arpit Singh <as00745003@techmahindra.com>

1 files changed, 12 insertions, 7 deletions

diff --git a/cps-rest/src/main/java/org/onap/cps/rest/controller/DataRestController.java b/cps-rest/src/main/java/org/onap/cps/rest/controller/DataRestController.java
index f86073fb06..7390afcf98 100755
--- a/cps-rest/src/main/java/org/onap/cps/rest/controller/DataRestController.java
+++ b/cps-rest/src/main/java/org/onap/cps/rest/controller/DataRestController.java
@@ -74,16 +74,21 @@ public class DataRestController implements CpsDataApi {
                                              final String dataspaceName, final String anchorName,
                                              final String contentTypeInHeader,
                                              final String nodeData, final String parentNodeXpath,
-                                             final String observedTimestamp) {
+                                             final Boolean dryRunEnabled, final String observedTimestamp) {
         final ContentType contentType = getContentTypeFromHeader(contentTypeInHeader);
-        if (isRootXpath(parentNodeXpath)) {
-            cpsDataService.saveData(dataspaceName, anchorName, nodeData,
-                    toOffsetDateTime(observedTimestamp), contentType);
+        if (Boolean.TRUE.equals(dryRunEnabled)) {
+            cpsDataService.validateData(dataspaceName, anchorName, parentNodeXpath, nodeData, contentType);
+            return ResponseEntity.ok().build();
         } else {
-            cpsDataService.saveData(dataspaceName, anchorName, parentNodeXpath,
-                    nodeData, toOffsetDateTime(observedTimestamp), contentType);
+            if (isRootXpath(parentNodeXpath)) {
+                cpsDataService.saveData(dataspaceName, anchorName, nodeData,
+                        toOffsetDateTime(observedTimestamp), contentType);
+            } else {
+                cpsDataService.saveData(dataspaceName, anchorName, parentNodeXpath,
+                        nodeData, toOffsetDateTime(observedTimestamp), contentType);
+            }
+            return ResponseEntity.status(HttpStatus.CREATED).build();
         }
-        return new ResponseEntity<>(HttpStatus.CREATED);
     }
 
     @Override