Performance Improvement:save cmhandles capability

- add saveCmHandleBatch in InventoryPersistence
- add saveListElementsBatch in CpsDataService
- have addListElementsBatch in CpsDataPersistenceService
- Test scenarios for the same

Issue-ID: CPS-1229
Issue-ID: CPS-1126
Change-Id: I0a1401818da5a4e523d7d0751cac6a526d1611b2
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>

2 files changed, 12 insertions, 2 deletions

diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
index c4a2c2fe98..61e1d5b569 100644
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
@@ -101,6 +101,16 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
         addChildDataNodes(dataspaceName, anchorName, parentNodeXpath, newListElements);
     }
 
+    @Override
+    @Transactional
+    public void addListElementsBatch(final String dataspaceName, final String anchorName, final String parentNodeXpath,
+            final Collection<Collection<DataNode>> newListsElements) {
+
+        newListsElements.forEach(
+                newListElement -> addListElements(dataspaceName, anchorName, parentNodeXpath, newListElement));
+
+    }
+
     private void addChildDataNodes(final String dataspaceName, final String anchorName, final String parentNodeXpath,
                                    final Collection<DataNode> newChildren) {
         final FragmentEntity parentFragmentEntity = getFragmentByXpath(dataspaceName, anchorName, parentNodeXpath);
diff --git a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy
index fee489d18b..acc243b5b4 100755
--- a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy
+++ b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsDataPersistenceServiceIntegrationSpec.groovy
@@ -157,7 +157,7 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
     }
 
     @Sql([CLEAR_DATA, SET_DATA])
-    def 'Add multiple new list elements including an element with a child datanode.'() {
+    def 'Add collection of multiple new list elements including an element with a child datanode.'() {
         given: 'two new child list elements for an existing parent'
             def listElementXpaths = ['/parent-201/child-204[@key="NEW1"]', '/parent-201/child-204[@key="NEW2"]']
             def listElements = toDataNodes(listElementXpaths)
@@ -165,7 +165,7 @@ class CpsDataPersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase {
             def grandChild = buildDataNode('/parent-201/child-204[@key="NEW1"]/grand-child-204[@key2="NEW1-CHILD"]', [leave:'value'], [])
             listElements[0].childDataNodes = [grandChild]
         when: 'the new data node (list elements) are added to an existing parent node'
-            objectUnderTest.addListElements(DATASPACE_NAME, ANCHOR_NAME3, '/parent-201', listElements)
+            objectUnderTest.addListElementsBatch(DATASPACE_NAME, ANCHOR_NAME3, '/parent-201', [listElements])
         then: 'new entries are successfully persisted, parent node now contains 5 children (2 new + 3 existing before)'
             def parentFragment = fragmentRepository.getById(LIST_DATA_NODE_PARENT201_FRAGMENT_ID)
             def allChildXpaths = parentFragment.childFragments.collect { it.xpath }