Delete DataNode (xpath) for a given Anchor

Delete Datanode within CPS. Deprecates delete functionality of
/v1/dataspaces/{dataspace-name}/anchors/{anchor-name}/list-nodes.
New api is backwards compatible with this API

Issue-ID: CPS-313
Change-Id: I110c4ab1446e8a1399a0d9bf89c0be614a9104df
Signed-off-by: DylanB95EST <dylan.byrne@est.tech>

3 files changed, 29 insertions, 0 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java b/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java
index e6cb65fa78..f455e47efd 100644
--- a/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java
+++ b/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java
@@ -120,6 +120,17 @@ public interface CpsDataService {
                             @NonNull String jsonData, OffsetDateTime observedTimestamp);
 
     /**
+     * Deletes data node for given anchor and dataspace.
+     *
+     * @param dataspaceName dataspace name
+     * @param anchorName anchor name
+     * @param dataNodeXpath data node xpath
+     * @param observedTimestamp observed timestamp
+     */
+    void deleteDataNode(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String dataNodeXpath,
+                        OffsetDateTime observedTimestamp);
+
+    /**
      * Deletes a list or a list-element under given anchor and dataspace.
      *
      * @param dataspaceName dataspace name
diff --git a/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java b/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
index 44a17f89dd..1445ccadf0 100755
--- a/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
+++ b/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
@@ -134,6 +134,13 @@ public class CpsDataServiceImpl implements CpsDataService {
     }
 
     @Override
+    public void deleteDataNode(final String dataspaceName, final String anchorName, final String dataNodeXpath,
+                               final OffsetDateTime observedTimestamp) {
+        cpsDataPersistenceService.deleteDataNode(dataspaceName, anchorName, dataNodeXpath);
+        processDataUpdatedEventAsync(dataspaceName, anchorName, observedTimestamp);
+    }
+
+    @Override
     public void deleteListOrListElement(final String dataspaceName, final String anchorName, final String listNodeXpath,
         final OffsetDateTime observedTimestamp) {
         cpsDataPersistenceService.deleteListDataNode(dataspaceName, anchorName, listNodeXpath);
diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy
index 2bd44824a6..ba9c156d75 100644
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy
@@ -227,6 +227,17 @@ class CpsDataServiceImplSpec extends Specification {
             1 * mockNotificationService.processDataUpdatedEvent(dataspaceName, anchorName, observedTimestamp)
     }
 
+    def 'Delete data node under anchor and dataspace.'() {
+        given: 'schema set for given anchor and dataspace references test tree model'
+            setupSchemaSetMocks('test-tree.yang')
+        when: 'delete data node method is invoked with correct parameters'
+            objectUnderTest.deleteDataNode(dataspaceName, anchorName, '/data-node', observedTimestamp)
+        then: 'the persistence service method is invoked with the correct parameters'
+            1 * mockCpsDataPersistenceService.deleteDataNode(dataspaceName, anchorName, '/data-node')
+        and: 'data updated event is sent to notification service'
+            1 * mockNotificationService.processDataUpdatedEvent(dataspaceName, anchorName, observedTimestamp)
+    }
+
     def setupSchemaSetMocks(String... yangResources) {
         def anchor = Anchor.builder().name(anchorName).schemaSetName(schemaSetName).build()
         mockCpsAdminService.getAnchor(dataspaceName, anchorName) >> anchor